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KoiVMdevirt.rar

Full analysis: https://app.any.run/tasks/0c3938dc-a56e-4cda-a061-0dee7b2ea48f
Verdict: Malicious activity
Analysis date: July 18, 2019, 14:36:51
OS: Windows 7 Professional Service Pack 1 (build: 7601, 32 bit)
Indicators:
MIME: application/x-rar
File info: RAR archive data, v5
MD5:

C20061859A2B517D6CBB0BB165B098DA

SHA1:

6031FA8863F9EA981092100A69656629C7D868A3

SHA256:

4749DEED8672318B6C78D3EC4C7EFA62D58C66D7ABD53FE04168A0A0478E5A00

SSDEEP:

12288:3sNJbMh2DHYf1o73KaCJEEx0sz/FaB8oJLl:3sNZG28fqYEEfz/F4LJJ

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

      • KoiVMDevirtualizer.exe (PID: 3340)
      • KoiVMDevirtualizer.exe (PID: 3452)
      • KoiVMDevirtualizer.exe (PID: 3276)
      • KoiVMDevirtualizer.exe (PID: 3904)
      • KoiVMDevirtualizer.exe (PID: 3484)

    • Loads dropped or rewritten executable

      • SearchProtocolHost.exe (PID: 1712)

    • Changes the autorun value in the registry

      • reg.exe (PID: 3496)

  • SUSPICIOUS

    • Application launched itself

      • Skype.exe (PID: 2888)
      • Skype.exe (PID: 1080)
      • Skype.exe (PID: 4056)

    • Reads CPU info

      • Skype.exe (PID: 4056)

    • Creates files in the user directory

      • Skype.exe (PID: 1080)
      • Skype.exe (PID: 4056)
      • Skype.exe (PID: 2888)

    • Modifies the open verb of a shell class

      • Skype.exe (PID: 4056)

    • Uses REG.EXE to modify Windows registry

      • Skype.exe (PID: 4056)

  • INFO

    • Manual execution by user

      • KoiVMDevirtualizer.exe (PID: 3340)
      • Skype.exe (PID: 4056)
      • KoiVMDevirtualizer.exe (PID: 3452)
      • KoiVMDevirtualizer.exe (PID: 3276)
      • KoiVMDevirtualizer.exe (PID: 3904)
      • rundll32.exe (PID: 4080)
      • KoiVMDevirtualizer.exe (PID: 3484)

    • Reads settings of System Certificates

      • Skype.exe (PID: 4056)

    • Dropped object may contain Bitcoin addresses

      • Skype.exe (PID: 4056)
Find more information about signature artifacts and mapping to MITRE ATT&CK™ MATRIX at the full report
No Malware configuration.

TRiD

.rar | RAR compressed archive (v5.0) (61.5)
.rar | RAR compressed archive (gen) (38.4)
No data.
screenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshot
All screenshots are available in the full report
All screenshots are available in the full report
Total processes
55
Monitored processes
16
Malicious processes
4
Suspicious processes
1

Behavior graph

Click at the process to see the details
start winrar.exe no specs searchprotocolhost.exe no specs koivmdevirtualizer.exe no specs skype.exe skype.exe reg.exe skype.exe no specs reg.exe no specs skype.exe skype.exe no specs skype.exe koivmdevirtualizer.exe no specs koivmdevirtualizer.exe no specs koivmdevirtualizer.exe no specs rundll32.exe no specs koivmdevirtualizer.exe no specs

Process information

PID
CMD
Path
Indicators
Parent process
3528"C:\Program Files\WinRAR\WinRAR.exe" "C:\Users\admin\AppData\Local\Temp\KoiVMdevirt.rar"C:\Program Files\WinRAR\WinRAR.exe—explorer.exe
User:
admin
Company:
Alexander Roshal
Integrity Level:
MEDIUM
Description:
WinRAR archiver
Exit code:
0
Version:
5.60.0
1712"C:\Windows\system32\SearchProtocolHost.exe" Global\UsGthrFltPipeMssGthrPipe8_ Global\UsGthrCtrlFltPipeMssGthrPipe8 1 -2147483646 "Software\Microsoft\Windows Search" "Mozilla/4.0 (compatible; MSIE 6.0; Windows NT; MS Search 4.0 Robot)" "C:\ProgramData\Microsoft\Search\Data\Temp\usgthrsvc" "DownLevelDaemon" C:\Windows\System32\SearchProtocolHost.exe—SearchIndexer.exe
User:
SYSTEM
Company:
Microsoft Corporation
Integrity Level:
SYSTEM
Description:
Microsoft Windows Search Protocol Host
Version:
7.00.7600.16385 (win7_rtm.090713-1255)
3340"C:\Users\admin\Desktop\KoiVMDevirtualizer.exe" C:\Users\admin\Desktop\KoiVMDevirtualizer.exe—explorer.exe
User:
admin
Integrity Level:
MEDIUM
Description:
KoivmDevirt
Exit code:
0
Version:
1.0.0.0
4056"C:\Program Files\Microsoft\Skype for Desktop\Skype.exe" C:\Program Files\Microsoft\Skype for Desktop\Skype.exe
explorer.exe
User:
admin
Company:
Skype Technologies S.A.
Integrity Level:
MEDIUM
Description:
Skype
Version:
8.29.0.50
2560"C:\Program Files\Microsoft\Skype for Desktop\Skype.exe" --reporter-url=https://rink.hockeyapp.net/api/2/apps/a741743329d94bc08826af367733939d/crashes/upload --application-name=skype-preview "--crashes-directory=C:\Users\admin\AppData\Local\Temp\skype-preview Crashes" --v=1C:\Program Files\Microsoft\Skype for Desktop\Skype.exe
Skype.exe
User:
admin
Company:
Skype Technologies S.A.
Integrity Level:
MEDIUM
Description:
Skype
Version:
8.29.0.50
3496C:\Windows\system32\reg.exe ADD HKCU\Software\Microsoft\Windows\CurrentVersion\Run /v "Skype for Desktop" /t REG_SZ /d "C:\Program Files\Microsoft\Skype for Desktop\Skype.exe" /fC:\Windows\system32\reg.exe
Skype.exe
User:
admin
Company:
Microsoft Corporation
Integrity Level:
MEDIUM
Description:
Registry Console Tool
Exit code:
0
Version:
6.1.7600.16385 (win7_rtm.090713-1255)
1080"C:\Program Files\Microsoft\Skype for Desktop\Skype.exe" --type=renderer --ms-disable-indexeddb-transaction-timeout --no-sandbox --service-pipe-token=382BB641D48F29FDE7996D1D1CBC0C2D --lang=en-US --app-user-model-id=Microsoft.Skype.SkypeDesktop --app-path="C:\Program Files\Microsoft\Skype for Desktop\resources\app.asar" --node-integration=false --webview-tag=true --no-sandbox --preload="C:\Program Files\Microsoft\Skype for Desktop\resources\app.asar\Preload.js" --context-id=2 --enable-pinch --device-scale-factor=1 --num-raster-threads=2 --enable-main-frame-before-activation --content-image-texture-target=0,0,3553;0,1,3553;0,2,3553;0,3,3553;0,4,3553;0,5,3553;0,6,3553;0,7,3553;0,8,3553;0,9,3553;0,10,3553;0,11,3553;0,12,3553;0,13,3553;0,14,3553;0,15,3553;0,16,3553;0,17,3553;1,0,3553;1,1,3553;1,2,3553;1,3,3553;1,4,3553;1,5,3553;1,6,3553;1,7,3553;1,8,3553;1,9,3553;1,10,3553;1,11,3553;1,12,3553;1,13,3553;1,14,3553;1,15,3553;1,16,3553;1,17,3553;2,0,3553;2,1,3553;2,2,3553;2,3,3553;2,4,3553;2,5,3553;2,6,3553;2,7,3553;2,8,3553;2,9,3553;2,10,3553;2,11,3553;2,12,3553;2,13,3553;2,14,3553;2,15,3553;2,16,3553;2,17,3553;3,0,3553;3,1,3553;3,2,3553;3,3,3553;3,4,3553;3,5,3553;3,6,3553;3,7,3553;3,8,3553;3,9,3553;3,10,3553;3,11,3553;3,12,3553;3,13,3553;3,14,3553;3,15,3553;3,16,3553;3,17,3553;4,0,3553;4,1,3553;4,2,3553;4,3,3553;4,4,3553;4,5,3553;4,6,3553;4,7,3553;4,8,3553;4,9,3553;4,10,3553;4,11,3553;4,12,3553;4,13,3553;4,14,3553;4,15,3553;4,16,3553;4,17,3553 --disable-accelerated-video-decode --disable-gpu-compositing --enable-gpu-async-worker-context --service-request-channel-token=382BB641D48F29FDE7996D1D1CBC0C2D --renderer-client-id=3 --mojo-platform-channel-handle=1544 /prefetch:1C:\Program Files\Microsoft\Skype for Desktop\Skype.exe—Skype.exe
User:
admin
Company:
Skype Technologies S.A.
Integrity Level:
MEDIUM
Description:
Skype
Exit code:
0
Version:
8.29.0.50
3304C:\Windows\system32\reg.exe QUERY HKCU\Software\Microsoft\Skype /v RestartForUpdateC:\Windows\system32\reg.exe—Skype.exe
User:
admin
Company:
Microsoft Corporation
Integrity Level:
MEDIUM
Description:
Registry Console Tool
Exit code:
1
Version:
6.1.7600.16385 (win7_rtm.090713-1255)
3168"C:\Program Files\Microsoft\Skype for Desktop\Skype.exe" --reporter-url=https://rink.hockeyapp.net/api/2/apps/a741743329d94bc08826af367733939d/crashes/upload --application-name=skype-preview "--crashes-directory=C:\Users\admin\AppData\Local\Temp\skype-preview Crashes" --v=1C:\Program Files\Microsoft\Skype for Desktop\Skype.exe
Skype.exe
User:
admin
Company:
Skype Technologies S.A.
Integrity Level:
MEDIUM
Description:
Skype
Exit code:
2
Version:
8.29.0.50
2888"C:\Program Files\Microsoft\Skype for Desktop\Skype.exe" --type=renderer --ms-disable-indexeddb-transaction-timeout --no-sandbox --service-pipe-token=5ACCE5039CE220F952264C420216E6B1 --lang=en-US --app-user-model-id=Microsoft.Skype.SkypeDesktop --app-path="C:\Program Files\Microsoft\Skype for Desktop\resources\app.asar" --node-integration=false --webview-tag=true --no-sandbox --preload="C:\Program Files\Microsoft\Skype for Desktop\resources\app.asar\Preload.js" --context-id=1 --enable-pinch --device-scale-factor=1 --num-raster-threads=2 --enable-main-frame-before-activation --content-image-texture-target=0,0,3553;0,1,3553;0,2,3553;0,3,3553;0,4,3553;0,5,3553;0,6,3553;0,7,3553;0,8,3553;0,9,3553;0,10,3553;0,11,3553;0,12,3553;0,13,3553;0,14,3553;0,15,3553;0,16,3553;0,17,3553;1,0,3553;1,1,3553;1,2,3553;1,3,3553;1,4,3553;1,5,3553;1,6,3553;1,7,3553;1,8,3553;1,9,3553;1,10,3553;1,11,3553;1,12,3553;1,13,3553;1,14,3553;1,15,3553;1,16,3553;1,17,3553;2,0,3553;2,1,3553;2,2,3553;2,3,3553;2,4,3553;2,5,3553;2,6,3553;2,7,3553;2,8,3553;2,9,3553;2,10,3553;2,11,3553;2,12,3553;2,13,3553;2,14,3553;2,15,3553;2,16,3553;2,17,3553;3,0,3553;3,1,3553;3,2,3553;3,3,3553;3,4,3553;3,5,3553;3,6,3553;3,7,3553;3,8,3553;3,9,3553;3,10,3553;3,11,3553;3,12,3553;3,13,3553;3,14,3553;3,15,3553;3,16,3553;3,17,3553;4,0,3553;4,1,3553;4,2,3553;4,3,3553;4,4,3553;4,5,3553;4,6,3553;4,7,3553;4,8,3553;4,9,3553;4,10,3553;4,11,3553;4,12,3553;4,13,3553;4,14,3553;4,15,3553;4,16,3553;4,17,3553 --disable-accelerated-video-decode --disable-gpu-compositing --enable-gpu-async-worker-context --service-request-channel-token=5ACCE5039CE220F952264C420216E6B1 --renderer-client-id=4 --mojo-platform-channel-handle=2200 /prefetch:1C:\Program Files\Microsoft\Skype for Desktop\Skype.exe—Skype.exe
User:
admin
Company:
Skype Technologies S.A.
Integrity Level:
MEDIUM
Description:
Skype
Version:
8.29.0.50
Total events
667
Read events
634
Write events
33
Delete events
0

Modification events

(PID) Process:(3528) WinRAR.exeKey:HKEY_CURRENT_USER\Software\WinRAR\Interface\Themes
Operation:writeName:ShellExtBMP
Value:
(PID) Process:(3528) WinRAR.exeKey:HKEY_CURRENT_USER\Software\WinRAR\Interface\Themes
Operation:writeName:ShellExtIcon
Value:
(PID) Process:(3528) WinRAR.exeKey:HKEY_CLASSES_ROOT\Local Settings\MuiCache\70\52C64B7E
Operation:writeName:LanguageList
Value:
en-US
(PID) Process:(3528) WinRAR.exeKey:HKEY_CURRENT_USER\Software\WinRAR\ArcHistory
Operation:writeName:0
Value:
C:\Users\admin\AppData\Local\Temp\KoiVMdevirt.rar
(PID) Process:(3528) WinRAR.exeKey:HKEY_CURRENT_USER\Software\WinRAR\FileList\FileColumnWidths
Operation:writeName:name
Value:
120
(PID) Process:(3528) WinRAR.exeKey:HKEY_CURRENT_USER\Software\WinRAR\FileList\FileColumnWidths
Operation:writeName:size
Value:
80
(PID) Process:(3528) WinRAR.exeKey:HKEY_CURRENT_USER\Software\WinRAR\FileList\FileColumnWidths
Operation:writeName:type
Value:
120
(PID) Process:(3528) WinRAR.exeKey:HKEY_CURRENT_USER\Software\WinRAR\FileList\FileColumnWidths
Operation:writeName:mtime
Value:
100
(PID) Process:(3528) WinRAR.exeKey:HKEY_CURRENT_USER\Software\WinRAR\Interface\MainWin
Operation:writeName:Placement
Value:
2C0000000200000003000000FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF42000000420000000204000037020000
(PID) Process:(3528) WinRAR.exeKey:HKEY_CURRENT_USER\Software\WinRAR\General
Operation:writeName:LastFolder
Value:
C:\Users\admin\AppData\Local\Temp
Executable files
0
Suspicious files
6
Text files
17
Unknown types
0

Dropped files

PID
Process
Filename
Type
3528WinRAR.exeC:\Users\admin\AppData\Local\Temp\Rar$DRa3528.15386\de4dot.blocks.dll —
MD5:—
SHA256:—
3528WinRAR.exeC:\Users\admin\AppData\Local\Temp\Rar$DRa3528.15386\dnlib.dll —
MD5:—
SHA256:—
3528WinRAR.exeC:\Users\admin\AppData\Local\Temp\Rar$DRa3528.15386\KoiVMDevirtualizer.exe —
MD5:—
SHA256:—
4056Skype.exeC:\Users\admin\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\2EJQLQ5IL4OF1URSGVQO.temp —
MD5:—
SHA256:—
4056Skype.exeC:\Users\admin\AppData\Roaming\Microsoft\Skype for Desktop\Skype-Setup.exe —
MD5:—
SHA256:—
4056Skype.exeC:\Users\admin\AppData\Roaming\Microsoft\Skype for Desktop\ecscache.jsontext
MD5:E725E53E18D06E2DAE5B9C0E9C03F206
SHA256:E2B58A58275A4CDD9EF145C7CB6B5600E59F751F14E9953D1F5F566C5E35101A
4056Skype.exeC:\Users\admin\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\b916037c1e115fe0.customDestinations-msbinary
MD5:59FD9178DD338752902ED5C456AD9EA3
SHA256:6D231F4D38691A85FD387A1C3ED23AF91CFACD1CC226AB772C15C7AB9984246A
1080Skype.exeC:\Users\admin\AppData\Roaming\Microsoft\Skype for Desktop\skylib\slimcore-0-1105234184.blogbinary
MD5:58F2B3B811341900040D91B9A769C93E
SHA256:0A180061F3B180BCF514BDF6604099DDDE32F2BF5C676EFB00A9882DF06F2705
3168Skype.exeC:\Users\admin\AppData\Local\Temp\skype-preview Crashes\operation_log.txttext
MD5:0A646AF333FA308861A890656AA1E592
SHA256:2AA3FDD886BD9BAAF8A0BE27D9F20148323EF75A65219BCB178CD9749389FCDF
1540Skype.exeC:\Users\admin\AppData\Local\Temp\skype-preview Crashes\operation_log.txttext
MD5:A702AD12FEE64228E174F62E6875E422
SHA256:76A60139D2BE3428CB2D731D2B7F8E3AD5CA94ED4CF44E0A3A835C9FF42EE7ED
Download PCAP, analyze network streams, HTTP content and a lot more at the full report
HTTP(S) requests
0
TCP/UDP connections
10
DNS requests
10
Threats
0

HTTP requests

No HTTP requests
Download PCAP, analyze network streams, HTTP content and a lot more at the full report

Connections

PID
Process
IP
Domain
ASN
CN
Reputation
4056
Skype.exe
13.90.95.57:443
get.skype.com
Microsoft Corporation
US
whitelisted
4056
Skype.exe
52.114.76.34:443
pipe.skype.com
Microsoft Corporation
IE
whitelisted
4056
Skype.exe
13.107.3.128:443
a.config.skype.com
Microsoft Corporation
US
whitelisted
4056
Skype.exe
172.217.18.170:443
www.googleapis.com
Google Inc.
US
whitelisted
4056
Skype.exe
2.18.233.81:443
download.skype.com
Akamai International B.V.
—
whitelisted
4056
Skype.exe
52.166.54.40:443
avatar.skype.com
Microsoft Corporation
NL
unknown

DNS requests

Domain
IP
Reputation
get.skype.com
  • 13.90.95.57
whitelisted
a.config.skype.com
  • 13.107.3.128
whitelisted
pipe.skype.com
  • 52.114.76.34
whitelisted
www.googleapis.com
  • 172.217.18.170
  • 216.58.206.10
  • 216.58.207.42
  • 216.58.207.74
  • 216.58.208.42
  • 172.217.16.138
  • 172.217.22.42
  • 172.217.22.74
  • 172.217.16.202
  • 172.217.18.106
  • 172.217.23.170
  • 216.58.205.234
  • 172.217.21.234
  • 172.217.22.10
  • 172.217.18.10
whitelisted
download.skype.com
  • 2.18.233.81
whitelisted
avatar.skype.com
  • 52.166.54.40
whitelisted
config.edge.skype.com
  • 13.107.3.128
whitelisted
browser.pipe.aria.microsoft.com
  • 52.114.76.34
whitelisted

Threats

No threats detected
Process
Message
Skype.exe
[3168:3148:0718/153809.757:VERBOSE1:crash_service_main.cc(78)] Session start. cmdline is [--reporter-url=https://rink.hockeyapp.net/api/2/apps/a741743329d94bc08826af367733939d/crashes/upload --application-name=skype-preview "--crashes-directory=C:\Users\admin\AppData\Local\Temp\skype-preview Crashes" --v=1]
Skype.exe
[3168:3148:0718/153809.758:VERBOSE1:crash_service.cc(145)] window handle is 0006015C
Skype.exe
[3168:3148:0718/153809.758:VERBOSE1:crash_service.cc(300)] pipe name is \\.\pipe\skype-preview Crash Service dumps at C:\Users\admin\AppData\Local\Temp\skype-preview Crashes
Skype.exe
[3168:3148:0718/153809.759:VERBOSE1:crash_service.cc(304)] checkpoint is C:\Users\admin\AppData\Local\Temp\skype-preview Crashes\crash_checkpoint.txt server is https://rink.hockeyapp.net/api/2/apps/a741743329d94bc08826af367733939d/crashes/upload maximum 128 reports/day reporter is electron-crash-service
Skype.exe
[3168:3148:0718/153809.759:ERROR:crash_service.cc(311)] could not start dumper
Skype.exe
[1540:1748:0718/153814.715:VERBOSE1:crash_service_main.cc(78)] Session start. cmdline is [--reporter-url=https://rink.hockeyapp.net/api/2/apps/a741743329d94bc08826af367733939d/crashes/upload --application-name=skype-preview "--crashes-directory=C:\Users\admin\AppData\Local\Temp\skype-preview Crashes" --v=1]
Skype.exe
[1540:1748:0718/153814.715:VERBOSE1:crash_service.cc(145)] window handle is 0006019C
Skype.exe
[1540:1748:0718/153814.715:VERBOSE1:crash_service.cc(300)] pipe name is \\.\pipe\skype-preview Crash Service dumps at C:\Users\admin\AppData\Local\Temp\skype-preview Crashes
Skype.exe
[1540:1748:0718/153814.715:VERBOSE1:crash_service.cc(304)] checkpoint is C:\Users\admin\AppData\Local\Temp\skype-preview Crashes\crash_checkpoint.txt server is https://rink.hockeyapp.net/api/2/apps/a741743329d94bc08826af367733939d/crashes/upload maximum 128 reports/day reporter is electron-crash-service
Skype.exe
[1540:1748:0718/153814.715:ERROR:crash_service.cc(311)] could not start dumper
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Reports
KoiVMdevirt.rar