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File name:

_AFER125419.tmp

Full analysis: https://app.any.run/tasks/da8363a9-fb91-412f-aa0f-432065a5a515
Verdict: Malicious activity
Threats:

FormBook is a data stealer that is being distributed as a MaaS. FormBook differs from a lot of competing malware by its extreme ease of use that allows even the unexperienced threat actors to use FormBook virus.

Analysis date: March 21, 2019, 21:36:42
OS: Windows 7 Professional Service Pack 1 (build: 7601, 32 bit)
Tags:
trojan
formbook
stealer
Indicators:
MIME: application/x-dosexec
File info: PE32 executable (GUI) Intel 80386 Mono/.Net assembly, for MS Windows
MD5:

0059549BED7D7A3426B31620267D7644

SHA1:

BDE82DE71FDEE9A47E3AB74250DA2E6A3C9EAB8E

SHA256:

41CE0B73781A31E9A23C8D5CC3171352DD21D5DBE4BAE1662B82A3D5B97BFE0A

SSDEEP:

12288:hwltpc6P6jeiwltpc6P6jefcqnSA64bRSQs:Clrc6P6jAlrc6P6j4cxedSQs

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

    • Formbook was detected

      • rundll32.exe (PID: 2868)
      • Firefox.exe (PID: 1556)
    • Changes the autorun value in the registry

      • rundll32.exe (PID: 2868)
    • FORMBOOK was detected

      • explorer.exe (PID: 1696)
    • Connects to CnC server

      • explorer.exe (PID: 1696)
    • Actions looks like stealing of personal data

      • rundll32.exe (PID: 2868)
    • Stealing of credential data

      • rundll32.exe (PID: 2868)
  • SUSPICIOUS

    • Starts Internet Explorer

      • rundll32.exe (PID: 2272)
    • Uses RUNDLL32.EXE to load library

      • explorer.exe (PID: 1696)
    • Starts CMD.EXE for commands execution

      • rundll32.exe (PID: 2868)
    • Application launched itself

      • winhost.exe (PID: 2688)
      • update_df4an.exe (PID: 236)
    • Executable content was dropped or overwritten

      • explorer.exe (PID: 1696)
      • DllHost.exe (PID: 3916)
    • Creates files in the user directory

      • rundll32.exe (PID: 2868)
    • Creates files in the program directory

      • DllHost.exe (PID: 3916)
    • Loads DLL from Mozilla Firefox

      • rundll32.exe (PID: 2868)
    • Executes scripts

      • explorer.exe (PID: 1696)
  • INFO

    • Application launched itself

      • iexplore.exe (PID: 572)
    • Changes internet zones settings

      • iexplore.exe (PID: 572)
    • Reads Internet Cache Settings

      • iexplore.exe (PID: 2608)
    • Creates files in the user directory

      • iexplore.exe (PID: 2608)
      • Firefox.exe (PID: 1556)
Find more information about signature artifacts and mapping to MITRE ATT&CK™ MATRIX at the full report
No Malware configuration.

TRiD

.exe | Generic CIL Executable (.NET, Mono, etc.) (81)
.dll | Win32 Dynamic Link Library (generic) (7.2)
.exe | Win32 Executable (generic) (4.9)
.exe | Win16/32 Executable Delphi generic (2.2)
.exe | Generic Win/DOS Executable (2.2)

EXIF

EXE

AssemblyVersion: 1.0.0.0
ProductVersion: 1.0.0.0
ProductName: retries
OriginalFileName: retries.exe
LegalTrademarks: -
LegalCopyright: Copyright © 2019
InternalName: retries.exe
FileVersion: 1.0.0.0
FileDescription: retries
CompanyName: -
Comments: -
CharacterSet: Unicode
LanguageCode: Neutral
FileSubtype: -
ObjectFileType: Executable application
FileOS: Win32
FileFlags: (none)
FileFlagsMask: 0x003f
ProductVersionNumber: 1.0.0.0
FileVersionNumber: 1.0.0.0
Subsystem: Windows GUI
SubsystemVersion: 4
ImageVersion: -
OSVersion: 4
EntryPoint: 0x6f6ae
UninitializedDataSize: -
InitializedDataSize: 2048
CodeSize: 448512
LinkerVersion: 8
PEType: PE32
TimeStamp: 1999:12:20 05:01:24+01:00
MachineType: Intel 386 or later, and compatibles

Summary

Architecture: IMAGE_FILE_MACHINE_I386
Subsystem: IMAGE_SUBSYSTEM_WINDOWS_GUI
Compilation Date: 20-Dec-1999 04:01:24
Comments: -
CompanyName: -
FileDescription: retries
FileVersion: 1.0.0.0
InternalName: retries.exe
LegalCopyright: Copyright © 2019
LegalTrademarks: -
OriginalFilename: retries.exe
ProductName: retries
ProductVersion: 1.0.0.0
Assembly Version: 1.0.0.0

DOS Header

Magic number: MZ
Bytes on last page of file: 0x0090
Pages in file: 0x0003
Relocations: 0x0000
Size of header: 0x0004
Min extra paragraphs: 0x0000
Max extra paragraphs: 0xFFFF
Initial SS value: 0x0000
Initial SP value: 0x00B8
Checksum: 0x0000
Initial IP value: 0x0000
Initial CS value: 0x0000
Overlay number: 0x0000
OEM identifier: 0x0000
OEM information: 0x0000
Address of NE header: 0x00000080

PE Headers

Signature: PE
Machine: IMAGE_FILE_MACHINE_I386
Number of sections: 3
Time date stamp: 20-Dec-1999 04:01:24
Pointer to Symbol Table: 0x00000000
Number of symbols: 0
Size of Optional Header: 0x00E0
Characteristics:
  • IMAGE_FILE_32BIT_MACHINE
  • IMAGE_FILE_EXECUTABLE_IMAGE

Sections

Name
Virtual Address
Virtual Size
Raw Size
Charateristics
Entropy
.text
0x00002000
0x0006D6B4
0x0006D800
IMAGE_SCN_CNT_CODE, IMAGE_SCN_MEM_EXECUTE, IMAGE_SCN_MEM_READ
7.66212
.rsrc
0x00070000
0x00000600
0x00000600
IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_MEM_READ
4.02439
.reloc
0x00072000
0x0000000C
0x00000200
IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_MEM_DISCARDABLE, IMAGE_SCN_MEM_READ
0.10191

Resources

Title
Entropy
Size
Codepage
Language
Type
1
5.00112
490
UNKNOWN
UNKNOWN
RT_MANIFEST

Imports

mscoree.dll
No data.
screenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshot
All screenshots are available in the full report
All screenshots are available in the full report
Total processes
52
Monitored processes
16
Malicious processes
3
Suspicious processes
0

Behavior graph

Click at the process to see the details
start drop and start rundll32.exe no specs iexplore.exe iexplore.exe explorer.exe no specs winhost.exe no specs winhost.exe no specs #FORMBOOK rundll32.exe cmd.exe no specs #FORMBOOK explorer.exe Copy/Move/Rename/Delete/Link Object update_df4an.exe no specs #FORMBOOK firefox.exe no specs update_df4an.exe no specs autochk.exe no specs autochk.exe no specs wscript.exe no specs

Process information

PID
CMD
Path
Indicators
Parent process
2272"C:\Windows\system32\rundll32.exe" C:\Windows\system32\shell32.dll,OpenAs_RunDLL C:\Users\admin\Desktop\_AFER125419.tmpC:\Windows\system32\rundll32.exeexplorer.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)
572"C:\Program Files\Internet Explorer\iexplore.exe" -nohomeC:\Program Files\Internet Explorer\iexplore.exe
rundll32.exe
User:
admin
Company:
Microsoft Corporation
Integrity Level:
MEDIUM
Description:
Internet Explorer
Exit code:
1
Version:
8.00.7600.16385 (win7_rtm.090713-1255)
2608"C:\Program Files\Internet Explorer\iexplore.exe" SCODEF:572 CREDAT:71937C:\Program Files\Internet Explorer\iexplore.exe
iexplore.exe
User:
admin
Company:
Microsoft Corporation
Integrity Level:
LOW
Description:
Internet Explorer
Exit code:
0
Version:
8.00.7600.16385 (win7_rtm.090713-1255)
124"C:\Windows\explorer.exe" C:\Windows\explorer.exeexplorer.exe
User:
admin
Company:
Microsoft Corporation
Integrity Level:
MEDIUM
Description:
Windows Explorer
Exit code:
1
Version:
6.1.7600.16385 (win7_rtm.090713-1255)
2688"C:\Users\admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\winhost.exe" C:\Users\admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\winhost.exeexplorer.exe
User:
admin
Integrity Level:
MEDIUM
Description:
retries
Exit code:
0
Version:
1.0.0.0
3588"C:\Users\admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\winhost.exe"C:\Users\admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\winhost.exewinhost.exe
User:
admin
Integrity Level:
MEDIUM
Description:
retries
Exit code:
0
Version:
1.0.0.0
2868"C:\Windows\System32\rundll32.exe"C:\Windows\System32\rundll32.exe
explorer.exe
User:
admin
Company:
Microsoft Corporation
Integrity Level:
MEDIUM
Description:
Windows host process (Rundll32)
Version:
6.1.7600.16385 (win7_rtm.090713-1255)
1472/c del "C:\Users\admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\winhost.exe"C:\Windows\System32\cmd.exerundll32.exe
User:
admin
Company:
Microsoft Corporation
Integrity Level:
MEDIUM
Description:
Windows Command Processor
Exit code:
0
Version:
6.1.7601.17514 (win7sp1_rtm.101119-1850)
1696C:\Windows\Explorer.EXEC:\Windows\explorer.exe
User:
admin
Company:
Microsoft Corporation
Integrity Level:
MEDIUM
Description:
Windows Explorer
Version:
6.1.7600.16385 (win7_rtm.090713-1255)
3916C:\Windows\system32\DllHost.exe /Processid:{3AD05575-8857-4850-9277-11B85BDB8E09}C:\Windows\system32\DllHost.exe
svchost.exe
User:
admin
Company:
Microsoft Corporation
Integrity Level:
HIGH
Description:
COM Surrogate
Exit code:
0
Version:
6.1.7600.16385 (win7_rtm.090713-1255)
Total events
5 061
Read events
4 702
Write events
0
Delete events
0

Modification events

No data
Executable files
4
Suspicious files
73
Text files
10
Unknown types
3

Dropped files

PID
Process
Filename
Type
572iexplore.exeC:\Users\admin\AppData\Local\Microsoft\Windows\Temporary Internet Files\Content.IE5\H6QNMHE9\favicon[1].ico
MD5:
SHA256:
572iexplore.exeC:\Users\admin\AppData\LocalLow\Microsoft\Internet Explorer\Services\search_{0633EE93-D776-472f-A0FF-E1416B8B2E3A}.ico
MD5:
SHA256:
572iexplore.exeC:\Users\admin\AppData\Local\Temp\~DF891CF8D8151147AE.TMP
MD5:
SHA256:
572iexplore.exeC:\Users\admin\AppData\Local\Microsoft\Internet Explorer\Recovery\Last Active\RecoveryStore.{7767BDB5-4C21-11E9-A302-5254004A04AF}.dat
MD5:
SHA256:
572iexplore.exeC:\Users\admin\AppData\Local\Temp\~DF0EC49C80471E315B.TMP
MD5:
SHA256:
572iexplore.exeC:\Users\admin\AppData\Local\Microsoft\Internet Explorer\Recovery\Active\{7767BDB4-4C21-11E9-A302-5254004A04AF}.dat
MD5:
SHA256:
572iexplore.exeC:\Users\admin\AppData\Local\Temp\~DF01448C94BDA696D8.TMP
MD5:
SHA256:
572iexplore.exeC:\Users\admin\AppData\Local\Microsoft\Internet Explorer\Recovery\Active\RecoveryStore.{7767BDB3-4C21-11E9-A302-5254004A04AF}.dat
MD5:
SHA256:
2608iexplore.exeC:\Users\admin\AppData\Local\Temp\Low\JavaDeployReg.logtext
MD5:6255AC97B01EE01409D96F43D72B0FD2
SHA256:FC723472161F64DC0970013EFA0CBAB058DE0911F3DACCD2C042E512D8CDE8A6
2608iexplore.exeC:\Users\admin\AppData\Local\Microsoft\Windows\Temporary Internet Files\Low\Content.IE5\index.datdat
MD5:2573D9E612053074D39226145FF9B097
SHA256:BDC9F2A8175A27AF2629D43C956664526DF9C7A0360EBDDF2C9B7559AC18FDDD
Download PCAP, analyze network streams, HTTP content and a lot more at the full report
HTTP(S) requests
11
TCP/UDP connections
12
DNS requests
12
Threats
0

HTTP requests

PID
Process
Method
HTTP Code
IP
URL
CN
Type
Size
Reputation
2608
iexplore.exe
GET
302
104.109.80.115:80
http://go.microsoft.com/fwlink/?LinkId=57426&Ext=tmp
NL
whitelisted
1696
explorer.exe
GET
69.195.124.189:80
http://www.samarassociates.com/ap/?9r=5fxGkrR/2/H5heH/XzwJKcXdZihMsEpdLbBd8GWuTo+ViGuxavEuHccHBJD1UjrShdIbtQ==&Otcl=vZ14dx4XcnyhUDd
US
malicious
1696
explorer.exe
POST
23.20.239.12:80
http://www.batdongsanmb.com/ap/
US
shared
1696
explorer.exe
POST
23.20.239.12:80
http://www.batdongsanmb.com/ap/
US
shared
1696
explorer.exe
POST
23.20.239.12:80
http://www.batdongsanmb.com/ap/
US
shared
1696
explorer.exe
POST
176.28.103.205:80
http://www.carlossalmeron.com/ap/
ES
malicious
1696
explorer.exe
POST
176.28.103.205:80
http://www.carlossalmeron.com/ap/
ES
malicious
1696
explorer.exe
POST
176.28.103.205:80
http://www.carlossalmeron.com/ap/
ES
malicious
1696
explorer.exe
GET
302
23.20.239.12:80
http://www.batdongsanmb.com/ap/?9r=7sNsHt+u0ir4W+unInP1cxFLila42ixSMsHMM1aBPDuN/Ix9v8Tj9CtAB1sOVBCaIrD/Dw==&Otcl=vZ14dx4XcnyhUDd&sql=1
US
html
188 b
shared
1696
explorer.exe
GET
404
176.28.103.205:80
http://www.carlossalmeron.com/ap/?9r=L3hKdfiLY5Ax6vp0piztrF2U+7KLJo/5poVQ8F+dqivauxgGv4SS5FbODDGEnhAo8ACGMg==&Otcl=vZ14dx4XcnyhUDd&sql=1
ES
html
320 b
malicious
Download PCAP, analyze network streams, HTTP content and a lot more at the full report

Connections

PID
Process
IP
Domain
ASN
CN
Reputation
572
iexplore.exe
204.79.197.200:80
www.bing.com
Microsoft Corporation
US
whitelisted
1696
explorer.exe
23.20.239.12:80
www.batdongsanmb.com
Amazon.com, Inc.
US
shared
1696
explorer.exe
176.28.103.205:80
www.carlossalmeron.com
acens Technologies, S.L.
ES
malicious
2608
iexplore.exe
104.109.80.115:80
go.microsoft.com
Akamai International B.V.
NL
whitelisted
2608
iexplore.exe
2.16.186.24:80
shell.windows.com
Akamai International B.V.
whitelisted
1696
explorer.exe
69.195.124.189:80
www.samarassociates.com
Unified Layer
US
malicious

DNS requests

Domain
IP
Reputation
www.bing.com
  • 204.79.197.200
  • 13.107.21.200
whitelisted
go.microsoft.com
  • 104.109.80.115
whitelisted
shell.windows.com
  • 2.16.186.24
  • 2.16.186.27
whitelisted
dns.msftncsi.com
  • 131.107.255.255
shared
www.sibmsharpcopiers.com
unknown
www.samarassociates.com
  • 69.195.124.189
malicious
www.batdongsanmb.com
  • 23.20.239.12
shared
www.xinduocheng.com
unknown
www.carlossalmeron.com
  • 176.28.103.205
malicious
www.chrisandkrystal.com
unknown

Threats

PID
Process
Class
Message
1696
explorer.exe
A Network Trojan was detected
MALWARE [PTsecurity] FormBook CnC Checkin (GET)
1696
explorer.exe
A Network Trojan was detected
MALWARE [PTsecurity] FormBook CnC Checkin (GET)
1696
explorer.exe
A Network Trojan was detected
MALWARE [PTsecurity] TrojanSpy:FormBook CnC Checkin (POST)
1696
explorer.exe
A Network Trojan was detected
MALWARE [PTsecurity] TrojanSpy:FormBook CnC Checkin (POST)
1696
explorer.exe
A Network Trojan was detected
MALWARE [PTsecurity] FormBook CnC Checkin (POST)
1696
explorer.exe
A Network Trojan was detected
MALWARE [PTsecurity] TrojanSpy:FormBook CnC Checkin (POST)
1696
explorer.exe
A Network Trojan was detected
MALWARE [PTsecurity] FormBook CnC Checkin (GET)
1696
explorer.exe
A Network Trojan was detected
MALWARE [PTsecurity] TrojanSpy:FormBook CnC Checkin (POST)
1696
explorer.exe
A Network Trojan was detected
MALWARE [PTsecurity] TrojanSpy:FormBook CnC Checkin (POST)
1696
explorer.exe
A Network Trojan was detected
MALWARE [PTsecurity] FormBook CnC Checkin (POST)
7 ETPRO signatures available at the full report
No debug info