File name:

winmail.dat

Full analysis: https://app.any.run/tasks/459f08a8-7473-4586-af77-04b00814516f
Verdict: Malicious activity
Analysis date: October 22, 2023, 08:21:53
OS: Windows 7 Professional Service Pack 1 (build: 7601, 32 bit)
Indicators:
MIME: application/vnd.ms-tnef
File info: Transport Neutral Encapsulation Format
MD5:

308E579228C792045BFCCFD8AFE81BB3

SHA1:

9B781BEB395FB4B5697B3BA0359C698E29D3956E

SHA256:

8BF5B06B4B76267C452E2BFAA4E47D727E0EF624E64AAB8685BD751B874D35ED

SSDEEP:

98304:urEYCtXCFXmNa2vsiLvq8xHFigN/j2UgAq9gyj8QQErydaU1a0RiAXDYdNm+CmcQ:LzvEP

ANY.RUN is an interactive service which provides full access to the guest system. Information in this report could be distorted by user actions and is provided for user acknowledgement as it is. ANY.RUN does not guarantee maliciousness or safety of the content.

  • MALICIOUS

    • Application was dropped or rewritten from another process

      • winmail-dat-viewer.exe (PID: 3324)

  • SUSPICIOUS

    • Reads the Internet Settings

      • rundll32.exe (PID: 1796)
      • winmail-dat-viewer.exe (PID: 3324)

  • INFO

    • Drops the executable file immediately after the start

      • msedge.exe (PID: 2704)
      • msedge.exe (PID: 2792)

    • Application launched itself

      • msedge.exe (PID: 2704)

    • Manual execution by a user

      • winmail-dat-viewer.exe (PID: 3324)

    • The process uses the downloaded file

      • msedge.exe (PID: 3856)

    • Reads the machine GUID from the registry

      • winmail-dat-viewer.exe (PID: 3324)

    • Checks supported languages

      • winmail-dat-viewer.exe (PID: 3324)

    • Reads the computer name

      • winmail-dat-viewer.exe (PID: 3324)

    • Checks proxy server information

      • winmail-dat-viewer.exe (PID: 3324)
Find more information about signature artifacts and mapping to MITRE ATT&CK™ MATRIX at the full report
No Malware configuration.

TRiD

.tnef/dat | Transport Neutral Encapsulation Format (100)
No data.
screenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshot
All screenshots are available in the full report
All screenshots are available in the full report
Total processes
70
Monitored processes
31
Malicious processes
1
Suspicious processes
0

Behavior graph

Click at the process to see the details
start rundll32.exe no specs msedge.exe msedge.exe no specs msedge.exe no specs msedge.exe msedge.exe no specs msedge.exe no specs msedge.exe no specs msedge.exe no specs msedge.exe no specs msedge.exe no specs msedge.exe no specs msedge.exe no specs msedge.exe no specs msedge.exe no specs msedge.exe no specs msedge.exe no specs msedge.exe no specs msedge.exe no specs msedge.exe no specs msedge.exe no specs msedge.exe no specs msedge.exe no specs msedge.exe no specs msedge.exe no specs msedge.exe no specs msedge.exe no specs msedge.exe no specs winmail-dat-viewer.exe no specs msedge.exe no specs msedge.exe no specs

Process information

PID
CMD
Path
Indicators
Parent process
116"C:\Program Files\Microsoft\Edge\Application\msedge.exe" --type=renderer --disable-gpu-compositing --lang=en-US --js-flags=--ms-user-locale= --device-scale-factor=1 --num-raster-threads=2 --enable-main-frame-before-activation --renderer-client-id=15 --mojo-platform-channel-handle=3680 --field-trial-handle=1248,i,15479414077661878961,9898072587069989238,131072 /prefetch:1C:\Program Files\Microsoft\Edge\Application\msedge.exe—msedge.exe
User:
admin
Company:
Microsoft Corporation
Integrity Level:
LOW
Description:
Microsoft Edge
Exit code:
0
Version:
109.0.1518.115
Modules
Images
c:\program files\microsoft\edge\application\msedge.exe
c:\windows\system32\kernel32.dll
c:\windows\system32\kernelbase.dll
c:\windows\system32\ntdll.dll
c:\program files\microsoft\edge\application\109.0.1518.115\msedge_elf.dll
c:\windows\system32\msvcrt.dll
c:\windows\system32\api-ms-win-core-synch-l1-2-0.dll
c:\windows\system32\advapi32.dll
c:\windows\system32\sechost.dll
c:\windows\system32\rpcrt4.dll
844"C:\Program Files\Microsoft\Edge\Application\msedge.exe" --type=renderer --disable-gpu-compositing --lang=en-US --js-flags=--ms-user-locale= --device-scale-factor=1 --num-raster-threads=2 --enable-main-frame-before-activation --renderer-client-id=14 --mojo-platform-channel-handle=3888 --field-trial-handle=1248,i,15479414077661878961,9898072587069989238,131072 /prefetch:1C:\Program Files\Microsoft\Edge\Application\msedge.exe—msedge.exe
User:
admin
Company:
Microsoft Corporation
Integrity Level:
LOW
Description:
Microsoft Edge
Exit code:
0
Version:
109.0.1518.115
Modules
Images
c:\windows\system32\ntdll.dll
c:\program files\microsoft\edge\application\msedge.exe
c:\windows\system32\kernel32.dll
c:\windows\system32\kernelbase.dll
c:\program files\microsoft\edge\application\109.0.1518.115\msedge_elf.dll
c:\windows\system32\api-ms-win-core-synch-l1-2-0.dll
c:\windows\system32\msvcrt.dll
c:\windows\system32\advapi32.dll
c:\windows\system32\sechost.dll
c:\windows\system32\rpcrt4.dll
876"C:\Program Files\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=data_decoder.mojom.DataDecoderService --lang=en-US --service-sandbox-type=service --mojo-platform-channel-handle=4888 --field-trial-handle=1248,i,15479414077661878961,9898072587069989238,131072 /prefetch:8C:\Program Files\Microsoft\Edge\Application\msedge.exe—msedge.exe
User:
admin
Company:
Microsoft Corporation
Integrity Level:
LOW
Description:
Microsoft Edge
Exit code:
0
Version:
109.0.1518.115
Modules
Images
c:\program files\microsoft\edge\application\msedge.exe
c:\windows\system32\ntdll.dll
c:\windows\system32\kernel32.dll
c:\windows\system32\kernelbase.dll
c:\program files\microsoft\edge\application\109.0.1518.115\msedge_elf.dll
c:\windows\system32\api-ms-win-core-synch-l1-2-0.dll
c:\windows\system32\advapi32.dll
c:\windows\system32\sechost.dll
c:\windows\system32\msvcrt.dll
c:\windows\system32\rpcrt4.dll
1140"C:\Program Files\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=chrome.mojom.UtilReadIcon --lang=en-US --service-sandbox-type=icon_reader --mojo-platform-channel-handle=5408 --field-trial-handle=1248,i,15479414077661878961,9898072587069989238,131072 /prefetch:8C:\Program Files\Microsoft\Edge\Application\msedge.exe—msedge.exe
User:
admin
Company:
Microsoft Corporation
Integrity Level:
LOW
Description:
Microsoft Edge
Exit code:
0
Version:
109.0.1518.115
Modules
Images
c:\program files\microsoft\edge\application\msedge.exe
c:\windows\system32\ntdll.dll
c:\windows\system32\kernel32.dll
c:\windows\system32\kernelbase.dll
c:\program files\microsoft\edge\application\109.0.1518.115\msedge_elf.dll
c:\windows\system32\api-ms-win-core-synch-l1-2-0.dll
c:\windows\system32\advapi32.dll
c:\windows\system32\msvcrt.dll
c:\windows\system32\sechost.dll
c:\windows\system32\api-ms-win-downlevel-shell32-l1-1-0.dll
1484"C:\Program Files\Microsoft\Edge\Application\msedge.exe" --type=gpu-process --gpu-preferences=UAAAAAAAAADgAAAYAAAAAAAAAAAAAAAAAABgAAAAAAAwAAAAAAAAAAAAAAAQAAAAAAAAAAAAAAAAAAAAAAAAAEgAAAAAAAAASAAAAAAAAAAYAAAAAgAAABAAAAAAAAAAGAAAAAAAAAAQAAAAAAAAAAAAAAAOAAAAEAAAAAAAAAABAAAADgAAAAgAAAAAAAAACAAAAAAAAAA= --use-gl=angle --use-angle=swiftshader-webgl --mojo-platform-channel-handle=1576 --field-trial-handle=1248,i,15479414077661878961,9898072587069989238,131072 /prefetch:2C:\Program Files\Microsoft\Edge\Application\msedge.exe—msedge.exe
User:
admin
Company:
Microsoft Corporation
Integrity Level:
LOW
Description:
Microsoft Edge
Exit code:
0
Version:
109.0.1518.115
Modules
Images
c:\program files\microsoft\edge\application\msedge.exe
c:\windows\system32\ntdll.dll
c:\windows\system32\kernelbase.dll
c:\windows\system32\kernel32.dll
c:\program files\microsoft\edge\application\109.0.1518.115\msedge_elf.dll
c:\windows\system32\advapi32.dll
c:\windows\system32\api-ms-win-core-synch-l1-2-0.dll
c:\windows\system32\msvcrt.dll
c:\windows\system32\sechost.dll
c:\windows\system32\rpcrt4.dll
1764"C:\Program Files\Microsoft\Edge\Application\msedge.exe" --type=renderer --disable-gpu-compositing --lang=en-US --js-flags=--ms-user-locale= --device-scale-factor=1 --num-raster-threads=2 --enable-main-frame-before-activation --renderer-client-id=13 --mojo-platform-channel-handle=3768 --field-trial-handle=1248,i,15479414077661878961,9898072587069989238,131072 /prefetch:1C:\Program Files\Microsoft\Edge\Application\msedge.exe—msedge.exe
User:
admin
Company:
Microsoft Corporation
Integrity Level:
LOW
Description:
Microsoft Edge
Exit code:
0
Version:
109.0.1518.115
Modules
Images
c:\program files\microsoft\edge\application\msedge.exe
c:\windows\system32\ntdll.dll
c:\windows\system32\kernel32.dll
c:\program files\microsoft\edge\application\109.0.1518.115\msedge_elf.dll
c:\windows\system32\kernelbase.dll
c:\windows\system32\api-ms-win-core-synch-l1-2-0.dll
c:\windows\system32\msvcrt.dll
c:\windows\system32\sechost.dll
c:\windows\system32\rpcrt4.dll
c:\windows\system32\cryptbase.dll
1796"C:\Windows\system32\rundll32.exe" C:\Windows\system32\shell32.dll,OpenAs_RunDLL "C:\Users\admin\AppData\Local\Temp\winmail.dat.tnef"C:\Windows\System32\rundll32.exe—explorer.exe
User:
admin
Company:
Microsoft Corporation
Integrity Level:
MEDIUM
Description:
Windows host process (Rundll32)
Exit code:
0
Version:
6.1.7600.16385 (win7_rtm.090713-1255)
Modules
Images
c:\windows\system32\rundll32.exe
c:\windows\system32\ntdll.dll
c:\windows\system32\kernel32.dll
c:\windows\system32\user32.dll
c:\windows\system32\gdi32.dll
c:\windows\system32\kernelbase.dll
c:\windows\system32\lpk.dll
c:\windows\system32\usp10.dll
c:\windows\system32\msvcrt.dll
c:\windows\system32\imagehlp.dll
1804"C:\Program Files\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=data_decoder.mojom.DataDecoderService --lang=en-US --service-sandbox-type=service --mojo-platform-channel-handle=4816 --field-trial-handle=1248,i,15479414077661878961,9898072587069989238,131072 /prefetch:8C:\Program Files\Microsoft\Edge\Application\msedge.exe—msedge.exe
User:
admin
Company:
Microsoft Corporation
Integrity Level:
LOW
Description:
Microsoft Edge
Exit code:
0
Version:
109.0.1518.115
Modules
Images
c:\program files\microsoft\edge\application\msedge.exe
c:\windows\system32\ntdll.dll
c:\windows\system32\kernelbase.dll
c:\windows\system32\kernel32.dll
c:\program files\microsoft\edge\application\109.0.1518.115\msedge_elf.dll
c:\windows\system32\api-ms-win-core-synch-l1-2-0.dll
c:\windows\system32\advapi32.dll
c:\windows\system32\msvcrt.dll
c:\windows\system32\rpcrt4.dll
c:\windows\system32\sechost.dll
1880"C:\Program Files\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=audio.mojom.AudioService --lang=en-US --service-sandbox-type=audio --mojo-platform-channel-handle=3396 --field-trial-handle=1248,i,15479414077661878961,9898072587069989238,131072 /prefetch:8C:\Program Files\Microsoft\Edge\Application\msedge.exe—msedge.exe
User:
admin
Company:
Microsoft Corporation
Integrity Level:
LOW
Description:
Microsoft Edge
Exit code:
0
Version:
109.0.1518.115
Modules
Images
c:\program files\microsoft\edge\application\msedge.exe
c:\windows\system32\ntdll.dll
c:\windows\system32\kernel32.dll
c:\program files\microsoft\edge\application\109.0.1518.115\msedge_elf.dll
c:\windows\system32\kernelbase.dll
c:\windows\system32\api-ms-win-core-synch-l1-2-0.dll
c:\windows\system32\msvcrt.dll
c:\windows\system32\advapi32.dll
c:\windows\system32\sechost.dll
c:\windows\system32\rpcrt4.dll
2080"C:\Program Files\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=data_decoder.mojom.DataDecoderService --lang=en-US --service-sandbox-type=service --mojo-platform-channel-handle=4300 --field-trial-handle=1248,i,15479414077661878961,9898072587069989238,131072 /prefetch:8C:\Program Files\Microsoft\Edge\Application\msedge.exe—msedge.exe
User:
admin
Company:
Microsoft Corporation
Integrity Level:
LOW
Description:
Microsoft Edge
Exit code:
0
Version:
109.0.1518.115
Modules
Images
c:\windows\system32\ntdll.dll
c:\program files\microsoft\edge\application\msedge.exe
c:\windows\system32\kernel32.dll
c:\windows\system32\kernelbase.dll
c:\program files\microsoft\edge\application\109.0.1518.115\msedge_elf.dll
c:\windows\system32\api-ms-win-core-synch-l1-2-0.dll
c:\windows\system32\advapi32.dll
c:\windows\system32\msvcrt.dll
c:\windows\system32\sechost.dll
c:\windows\system32\rpcrt4.dll
Total events
8 310
Read events
8 261
Write events
48
Delete events
1

Modification events

(PID) Process:(2704) msedge.exeKey:HKEY_CURRENT_USER\Software\Microsoft\Edge\BLBeacon
Operation:writeName:failed_count
Value:
0
(PID) Process:(2704) msedge.exeKey:HKEY_CURRENT_USER\Software\Microsoft\Edge\BLBeacon
Operation:writeName:state
Value:
1
(PID) Process:(2704) msedge.exeKey:HKEY_CURRENT_USER\Software\Microsoft\Edge\ThirdParty
Operation:writeName:StatusCodes
Value:
01000000
(PID) Process:(2704) msedge.exeKey:HKEY_CURRENT_USER\Software\Microsoft\Edge\BLBeacon
Operation:writeName:state
Value:
2
(PID) Process:(2704) msedge.exeKey:HKEY_CURRENT_USER\Software\Microsoft\EdgeUpdate\ClientState\{56EB18F8-B008-4CBD-B6D2-8C97FE7E9062}
Operation:writeName:dr
Value:
1
(PID) Process:(2704) msedge.exeKey:HKEY_CURRENT_USER\Software\Microsoft\Edge\StabilityMetrics
Operation:writeName:user_experience_metrics.stability.exited_cleanly
Value:
1
(PID) Process:(2704) msedge.exeKey:HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\EdgeUpdate\ClientStateMedium\{56EB18F8-B008-4CBD-B6D2-8C97FE7E9062}\LastWasDefault
Operation:writeName:S-1-5-21-1302019708-1500728564-335382590-1000
Value:
8A1A1F2B695E2F00
(PID) Process:(2704) msedge.exeKey:HKEY_CURRENT_USER\Software\Microsoft\Edge
Operation:writeName:UsageStatsInSample
Value:
1
(PID) Process:(2704) msedge.exeKey:HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\EdgeUpdate\ClientStateMedium\{56EB18F8-B008-4CBD-B6D2-8C97FE7E9062}
Operation:writeName:usagestats
Value:
1
(PID) Process:(2704) msedge.exeKey:HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\EdgeUpdate\ClientStateMedium\{56EB18F8-B008-4CBD-B6D2-8C97FE7E9062}
Operation:writeName:urlstats
Value:
1
Executable files
8
Suspicious files
177
Text files
46
Unknown types
0

Dropped files

PID
Process
Filename
Type
2704msedge.exeC:\Users\admin\AppData\Local\Microsoft\Edge\User Data\Default\commerce_subscription_db\LOG.old~RF1f0efd.TMP —
MD5:—
SHA256:—
2704msedge.exeC:\Users\admin\AppData\Local\Microsoft\Edge\User Data\Default\commerce_subscription_db\LOG.old —
MD5:—
SHA256:—
2704msedge.exeC:\Users\admin\AppData\Local\Microsoft\Edge\User Data\Default\EdgePushStorageWithConnectTokenAndKey\LOG.old~RF1f0f3b.TMP —
MD5:—
SHA256:—
2704msedge.exeC:\Users\admin\AppData\Local\Microsoft\Edge\User Data\Default\EdgePushStorageWithConnectTokenAndKey\LOG.old —
MD5:—
SHA256:—
2704msedge.exeC:\Users\admin\AppData\Local\Microsoft\Edge\User Data\Default\LOG.old~RF1f0fa9.TMP —
MD5:—
SHA256:—
2704msedge.exeC:\Users\admin\AppData\Local\Microsoft\Edge\User Data\Default\LOG.old —
MD5:—
SHA256:—
2704msedge.exeC:\Users\admin\AppData\Local\Microsoft\Edge\User Data\Crashpad\settings.datbinary
MD5:C7352A0E98449CC8AEDC1D6954C4CCD9
SHA256:3A1591F52AD31B5B0B48F97AB5E1361D0AD0FA0F584E8FE8EFD482801DC2B9B5
2704msedge.exeC:\Users\admin\AppData\Local\Microsoft\Edge\User Data\Default\Site Characteristics Database\LOG.oldtext
MD5:A9B940DA81B2E13D048EBB32E79FA414
SHA256:9061129705411EA6CFDD34177BF841CC85EB857BA909D3C4AA69BE8A5C59A8B0
2704msedge.exeC:\Users\admin\AppData\Local\Microsoft\Edge\User Data\Variationsbinary
MD5:961E3604F228B0D10541EBF921500C86
SHA256:F7B24F2EB3D5EB0550527490395D2F61C3D2FE74BB9CB345197DAD81B58B5FED
2704msedge.exeC:\Users\admin\AppData\Local\Microsoft\Edge\User Data\Default\Sync Data\LevelDB\LOG.old~RF1f0f3b.TMPtext
MD5:7F169CD2570538CEC8F1F23C0814272F
SHA256:3E92388691F2F940500E93E73FAF1BB90ADB857E508C2C04A94D166F6983342D
Download PCAP, analyze network streams, HTTP content and a lot more at the full report
HTTP(S) requests
2
TCP/UDP connections
44
DNS requests
60
Threats
0

HTTP requests

PID
Process
Method
HTTP Code
IP
URL
CN
Type
Size
Reputation
2792
msedge.exe
GET
302
23.213.166.81:80
http://go.microsoft.com/fwlink/?LinkId=57426&Ext=tnef%22
unknown
—
—
unknown
2792
msedge.exe
GET
301
23.53.42.43:80
http://shell.windows.com/fileassoc/fileassoc.asp?Ext=tnef%22
unknown
—
—
unknown
Download PCAP, analyze network streams, HTTP content and a lot more at the full report

Connections

PID
Process
IP
Domain
ASN
CN
Reputation
4
System
192.168.100.255:137
—
—
—
whitelisted
2656
svchost.exe
239.255.255.250:1900
—
—
—
whitelisted
4
System
192.168.100.255:138
—
—
—
whitelisted
2792
msedge.exe
23.213.166.81:80
go.microsoft.com
AKAMAI-AS
DE
unknown
2704
msedge.exe
239.255.255.250:1900
—
—
—
whitelisted
2792
msedge.exe
13.107.21.239:443
edge.microsoft.com
MICROSOFT-CORP-MSN-AS-BLOCK
US
unknown
2792
msedge.exe
13.107.42.16:443
config.edge.skype.com
MICROSOFT-CORP-MSN-AS-BLOCK
US
whitelisted
2792
msedge.exe
20.31.251.109:443
nav-edge.smartscreen.microsoft.com
MICROSOFT-CORP-MSN-AS-BLOCK
NL
unknown
2792
msedge.exe
23.53.42.43:80
shell.windows.com
Akamai International B.V.
DE
unknown
2792
msedge.exe
13.107.21.200:443
www.bing.com
MICROSOFT-CORP-MSN-AS-BLOCK
US
whitelisted

DNS requests

Domain
IP
Reputation
go.microsoft.com
  • 23.213.166.81
whitelisted
config.edge.skype.com
  • 13.107.42.16
whitelisted
edge.microsoft.com
  • 13.107.21.239
  • 204.79.197.239
whitelisted
nav-edge.smartscreen.microsoft.com
  • 20.31.251.109
whitelisted
shell.windows.com
  • 23.53.42.43
  • 23.53.41.250
whitelisted
www.bing.com
  • 13.107.21.200
  • 204.79.197.200
whitelisted
data-edge.smartscreen.microsoft.com
  • 20.103.180.120
whitelisted
r.bing.com
  • 23.37.226.81
  • 23.37.226.104
  • 23.53.43.96
  • 23.53.43.153
  • 23.53.43.154
  • 23.53.43.146
  • 23.37.226.106
  • 23.37.226.96
  • 23.53.43.106
  • 23.37.226.88
  • 23.37.226.90
  • 23.37.226.97
whitelisted
th.bing.com
  • 23.53.43.154
  • 23.37.226.81
  • 23.37.226.90
  • 23.37.226.97
  • 23.37.226.96
  • 23.37.226.106
  • 23.53.43.146
  • 23.53.43.106
  • 23.37.226.88
  • 23.53.43.153
whitelisted
login.microsoftonline.com
  • 20.190.159.2
  • 40.126.31.67
  • 40.126.31.73
  • 40.126.31.69
  • 20.190.159.23
  • 20.190.159.4
  • 20.190.159.68
  • 20.190.159.0
whitelisted

Threats

No threats detected
No debug info
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Reports
winmail.dat