formbook | acdcfb74712f171a6527ea14112eeb4bd482b7ae74f4e2990a946c8ccea8ad65

Analysis

max time kernel
148s
max time network
121s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
04-02-2025 10:41

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General

Target

Sigmanly_acdcfb74712f171a6527ea14112eeb4bd482b7ae74f4e2990a946c8ccea8ad65.exe
Size

686KB
MD5

3ce1a7e44b4edafafc9e2ac8b3ab3295
SHA1

f35ea88bdd6cc369a640263690855116adeb3f01
SHA256

acdcfb74712f171a6527ea14112eeb4bd482b7ae74f4e2990a946c8ccea8ad65
SHA512

319baa767941b2dd181062b89555e10ebbd30e47fa83683db306baafe5edbb6dae8216bd3f57291733a618da724a5b8005d24b02f0d525d4505694704d9593fa
SSDEEP

12288:hRNk5ea1sMXs8c/jH2MgIQFdSlabXulG1rdtf+nyzu3zE/FC/h2pHcQ/Q:h45D5cb2MEFdSDGRDpzszEw

Score

10^/10

formbook a03d discovery execution rat spyware stealer trojan

Malware Config

Extracted

Family

formbook

Version

4.1

Campaign

a03d

Decoy

nfluencer-marketing-13524.bond

cebepu.info

lphatechblog.xyz

haoyun.website

itiz.xyz

orld-visa-center.online

si.art

alata.xyz

mmarketing.xyz

elnqdjc.shop

ensentoto.cloud

voyagu.info

onvert.today

1fuli9902.shop

otelhafnia.info

rumpchiefofstaff.store

urvivalflashlights.shop

0090.pizza

ings-hu-13.today

oliticalpatriot.net

Signatures

Formbook
Formbook is a data stealing malware which is capable of stealing data.
trojan spyware stealer formbook
Formbook family
formbook

Formbook payload 3 IoCs

rat

resource	yara_rule
behavioral1/memory/2796-25-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral1/memory/2796-29-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral1/memory/1148-31-0x0000000000080000-0x00000000000AF000-memory.dmp	formbook

Command and Scripting Interpreter: PowerShell 1 TTPs 2 IoCs

Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.

execution

PowerShell

T1059.001

pid	Process
2080	powershell.exe
348	powershell.exe

Suspicious use of SetThreadContext 4 IoCs

description	pid	Process	procid_target
PID 2596 set thread context of 2796	2596	Sigmanly_acdcfb74712f171a6527ea14112eeb4bd482b7ae74f4e2990a946c8ccea8ad65.exe	37
PID 2796 set thread context of 1200	2796	RegSvcs.exe	21
PID 2796 set thread context of 1200	2796	RegSvcs.exe	21
PID 1148 set thread context of 1200	1148	colorcpl.exe	21

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

System Location Discovery: System Language Discovery 1 TTPs 7 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Sigmanly_acdcfb74712f171a6527ea14112eeb4bd482b7ae74f4e2990a946c8ccea8ad65.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	powershell.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	powershell.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	schtasks.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	RegSvcs.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	colorcpl.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe

Scheduled Task/Job: Scheduled Task 1 TTPs 1 IoCs

Schtasks is often used by malware for persistence or to perform post-infection execution.

persistence execution

Scheduled Task

T1053.005

pid	Process
2760	schtasks.exe

Suspicious behavior: EnumeratesProcesses 31 IoCs

pid	Process
2596	Sigmanly_acdcfb74712f171a6527ea14112eeb4bd482b7ae74f4e2990a946c8ccea8ad65.exe
2596	Sigmanly_acdcfb74712f171a6527ea14112eeb4bd482b7ae74f4e2990a946c8ccea8ad65.exe
2796	RegSvcs.exe
2796	RegSvcs.exe
348	powershell.exe
2080	powershell.exe
2796	RegSvcs.exe
1148	colorcpl.exe
1148	colorcpl.exe
1148	colorcpl.exe
1148	colorcpl.exe
1148	colorcpl.exe
1148	colorcpl.exe
1148	colorcpl.exe
1148	colorcpl.exe
1148	colorcpl.exe
1148	colorcpl.exe
1148	colorcpl.exe
1148	colorcpl.exe
1148	colorcpl.exe
1148	colorcpl.exe
1148	colorcpl.exe
1148	colorcpl.exe
1148	colorcpl.exe
1148	colorcpl.exe
1148	colorcpl.exe
1148	colorcpl.exe
1148	colorcpl.exe
1148	colorcpl.exe
1148	colorcpl.exe
1148	colorcpl.exe

Suspicious behavior: MapViewOfSection 6 IoCs

pid	Process
2796	RegSvcs.exe
2796	RegSvcs.exe
2796	RegSvcs.exe
2796	RegSvcs.exe
1148	colorcpl.exe
1148	colorcpl.exe

Suspicious use of AdjustPrivilegeToken 5 IoCs

description	pid	Process
Token: SeDebugPrivilege	2596	Sigmanly_acdcfb74712f171a6527ea14112eeb4bd482b7ae74f4e2990a946c8ccea8ad65.exe
Token: SeDebugPrivilege	2796	RegSvcs.exe
Token: SeDebugPrivilege	348	powershell.exe
Token: SeDebugPrivilege	2080	powershell.exe
Token: SeDebugPrivilege	1148	colorcpl.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 2596 wrote to memory of 2080	2596	Sigmanly_acdcfb74712f171a6527ea14112eeb4bd482b7ae74f4e2990a946c8ccea8ad65.exe	31
PID 2596 wrote to memory of 2080	2596	Sigmanly_acdcfb74712f171a6527ea14112eeb4bd482b7ae74f4e2990a946c8ccea8ad65.exe	31
PID 2596 wrote to memory of 2080	2596	Sigmanly_acdcfb74712f171a6527ea14112eeb4bd482b7ae74f4e2990a946c8ccea8ad65.exe	31
PID 2596 wrote to memory of 2080	2596	Sigmanly_acdcfb74712f171a6527ea14112eeb4bd482b7ae74f4e2990a946c8ccea8ad65.exe	31
PID 2596 wrote to memory of 348	2596	Sigmanly_acdcfb74712f171a6527ea14112eeb4bd482b7ae74f4e2990a946c8ccea8ad65.exe	33
PID 2596 wrote to memory of 348	2596	Sigmanly_acdcfb74712f171a6527ea14112eeb4bd482b7ae74f4e2990a946c8ccea8ad65.exe	33
PID 2596 wrote to memory of 348	2596	Sigmanly_acdcfb74712f171a6527ea14112eeb4bd482b7ae74f4e2990a946c8ccea8ad65.exe	33
PID 2596 wrote to memory of 348	2596	Sigmanly_acdcfb74712f171a6527ea14112eeb4bd482b7ae74f4e2990a946c8ccea8ad65.exe	33
PID 2596 wrote to memory of 2760	2596	Sigmanly_acdcfb74712f171a6527ea14112eeb4bd482b7ae74f4e2990a946c8ccea8ad65.exe	35
PID 2596 wrote to memory of 2760	2596	Sigmanly_acdcfb74712f171a6527ea14112eeb4bd482b7ae74f4e2990a946c8ccea8ad65.exe	35
PID 2596 wrote to memory of 2760	2596	Sigmanly_acdcfb74712f171a6527ea14112eeb4bd482b7ae74f4e2990a946c8ccea8ad65.exe	35
PID 2596 wrote to memory of 2760	2596	Sigmanly_acdcfb74712f171a6527ea14112eeb4bd482b7ae74f4e2990a946c8ccea8ad65.exe	35
PID 2596 wrote to memory of 2796	2596	Sigmanly_acdcfb74712f171a6527ea14112eeb4bd482b7ae74f4e2990a946c8ccea8ad65.exe	37
PID 2596 wrote to memory of 2796	2596	Sigmanly_acdcfb74712f171a6527ea14112eeb4bd482b7ae74f4e2990a946c8ccea8ad65.exe	37
PID 2596 wrote to memory of 2796	2596	Sigmanly_acdcfb74712f171a6527ea14112eeb4bd482b7ae74f4e2990a946c8ccea8ad65.exe	37
PID 2596 wrote to memory of 2796	2596	Sigmanly_acdcfb74712f171a6527ea14112eeb4bd482b7ae74f4e2990a946c8ccea8ad65.exe	37
PID 2596 wrote to memory of 2796	2596	Sigmanly_acdcfb74712f171a6527ea14112eeb4bd482b7ae74f4e2990a946c8ccea8ad65.exe	37
PID 2596 wrote to memory of 2796	2596	Sigmanly_acdcfb74712f171a6527ea14112eeb4bd482b7ae74f4e2990a946c8ccea8ad65.exe	37
PID 2596 wrote to memory of 2796	2596	Sigmanly_acdcfb74712f171a6527ea14112eeb4bd482b7ae74f4e2990a946c8ccea8ad65.exe	37
PID 2596 wrote to memory of 2796	2596	Sigmanly_acdcfb74712f171a6527ea14112eeb4bd482b7ae74f4e2990a946c8ccea8ad65.exe	37
PID 2596 wrote to memory of 2796	2596	Sigmanly_acdcfb74712f171a6527ea14112eeb4bd482b7ae74f4e2990a946c8ccea8ad65.exe	37
PID 2596 wrote to memory of 2796	2596	Sigmanly_acdcfb74712f171a6527ea14112eeb4bd482b7ae74f4e2990a946c8ccea8ad65.exe	37
PID 2796 wrote to memory of 1148	2796	RegSvcs.exe	38
PID 2796 wrote to memory of 1148	2796	RegSvcs.exe	38
PID 2796 wrote to memory of 1148	2796	RegSvcs.exe	38
PID 2796 wrote to memory of 1148	2796	RegSvcs.exe	38
PID 1148 wrote to memory of 1720	1148	colorcpl.exe	39
PID 1148 wrote to memory of 1720	1148	colorcpl.exe	39
PID 1148 wrote to memory of 1720	1148	colorcpl.exe	39
PID 1148 wrote to memory of 1720	1148	colorcpl.exe	39

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
PID:1200
- C:\Users\Admin\AppData\Local\Temp\Sigmanly_acdcfb74712f171a6527ea14112eeb4bd482b7ae74f4e2990a946c8ccea8ad65.exe
  "C:\Users\Admin\AppData\Local\Temp\Sigmanly_acdcfb74712f171a6527ea14112eeb4bd482b7ae74f4e2990a946c8ccea8ad65.exe"
  2⤵
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:2596
- - C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
    "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Local\Temp\Sigmanly_acdcfb74712f171a6527ea14112eeb4bd482b7ae74f4e2990a946c8ccea8ad65.exe"
    3⤵
    - Command and Scripting Interpreter: PowerShell
    - System Location Discovery: System Language Discovery
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:2080
- - C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
    "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\TQjwUwdCH.exe"
    3⤵
    - Command and Scripting Interpreter: PowerShell
    - System Location Discovery: System Language Discovery
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:348
- - C:\Windows\SysWOW64\schtasks.exe
    "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\TQjwUwdCH" /XML "C:\Users\Admin\AppData\Local\Temp\tmpECCF.tmp"
    3⤵
    - System Location Discovery: System Language Discovery
    - Scheduled Task/Job: Scheduled Task
    PID:2760
- - C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
    "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe"
    3⤵
    - Suspicious use of SetThreadContext
    - System Location Discovery: System Language Discovery
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious behavior: MapViewOfSection
    - Suspicious use of AdjustPrivilegeToken
    - Suspicious use of WriteProcessMemory
    PID:2796
  - - C:\Windows\SysWOW64\colorcpl.exe
      "C:\Windows\SysWOW64\colorcpl.exe"
      4⤵
      Suspicious use of SetThreadContext
      System Location Discovery: System Language Discovery
      Suspicious behavior: EnumeratesProcesses
      Suspicious behavior: MapViewOfSection
      Suspicious use of AdjustPrivilegeToken
      Suspicious use of WriteProcessMemory
      PID:1148
    - - C:\Windows\SysWOW64\cmd.exe
        
        /c del "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe"
        5⤵
        System Location Discovery: System Language Discovery
        
        PID:1720

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

T1059

PowerShell

T1059.001

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Persistence

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Privilege Escalation

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Defense Evasion

Credential Access

Discovery

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\tmpECCF.tmp

Filesize
1KB

MD5
efcc0fcb4d545ea279c84383aa62bd73

SHA1
99429bdb54057438e8298057b8e9878888d0575e

SHA256
bf96cdb2186e285c97614f0e792f06d53d0231eced5aa7cc5dee75a58d71e56c

SHA512
762293bc7c407c44faac8c442401484c699613d7db6698986e799e115f6bdc50f962cef26c2d3ac1cd799feb6e53e94a01690e8e17111e8931ca20e1ad3b83a2

Download Submit
C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\d93f411851d7c929.customDestinations-ms

Filesize
7KB

MD5
40607de6a7fb284f63f4f17e7a81affe

SHA1
f0ecfaf808301105af1f7ff98fcb572df636c92a

SHA256
7937dce5ffda17338b9eb8a621f332db11d2f16d3c21c4314c9393cf4d717027

SHA512
6c4cd63ce640b0b687f178cf2f955e8fb5c860930dde4ba70a567a7aa8e3571df4dc4e0c9e92e3d2f3f00586d8802de3a2835b82e9563428ce6709442da64d5c

Download Submit
memory/1148-31-0x0000000000080000-0x00000000000AF000-memory.dmp

Filesize
188KB

Download
memory/1148-30-0x0000000000310000-0x0000000000328000-memory.dmp

Filesize
96KB

Download
memory/1200-32-0x0000000006AB0000-0x0000000006BFF000-memory.dmp

Filesize
1.3MB

Download
memory/2596-4-0x0000000000560000-0x000000000057E000-memory.dmp

Filesize
120KB

Download
memory/2596-26-0x0000000073EF0000-0x00000000745DE000-memory.dmp

Filesize
6.9MB

Download
memory/2596-7-0x0000000000370000-0x00000000003E8000-memory.dmp

Filesize
480KB

Download
memory/2596-5-0x0000000073EFE000-0x0000000073EFF000-memory.dmp

Filesize
4KB

Download
memory/2596-0-0x0000000073EFE000-0x0000000073EFF000-memory.dmp

Filesize
4KB

Download
memory/2596-1-0x00000000002B0000-0x0000000000362000-memory.dmp

Filesize
712KB

Download
memory/2596-2-0x0000000073EF0000-0x00000000745DE000-memory.dmp

Filesize
6.9MB

Download
memory/2596-6-0x0000000073EF0000-0x00000000745DE000-memory.dmp

Filesize
6.9MB

Download
memory/2596-3-0x00000000007C0000-0x0000000000862000-memory.dmp

Filesize
648KB

Download
memory/2796-24-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2796-29-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/2796-22-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/2796-25-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/2796-20-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download