formbook | 4d49933551f01cc730f63fd290ecb61f4bfa880a0660f0ec7363e148ef85645a

Analysis

max time kernel
146s
max time network
121s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
15-01-2025 02:31

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General

Target

4d49933551f01cc730f63fd290ecb61f4bfa880a0660f0ec7363e148ef85645a.exe
Size

647KB
MD5

d9d98d244f3d4779c8aa532562ffb536
SHA1

594abbcf69862f343c0ce75716da5607ab6bbaed
SHA256

4d49933551f01cc730f63fd290ecb61f4bfa880a0660f0ec7363e148ef85645a
SHA512

4807098ae5e3db0b40e32c7cc053580202922cc3cc1374aacfa5d767e3ca2d94255d029865a6351233b613835d06068011a0ea15acad620256137c8ed826ce96
SSDEEP

12288:+YRxA4Y5lyA/BxSPCgPGT5GrNz72lYBjonsMqfGx7OnOSSGsR8CleigAVJTsxZtK:ZROUrF8K0qq0OEfCQjUszE

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 2 IoCs

rat

resource	yara_rule
behavioral1/memory/2596-24-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral1/memory/2324-28-0x00000000000D0000-0x00000000000FF000-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
2688	powershell.exe
2864	powershell.exe

Suspicious use of SetThreadContext 3 IoCs

description	pid	Process	procid_target
PID 1576 set thread context of 2596	1576	4d49933551f01cc730f63fd290ecb61f4bfa880a0660f0ec7363e148ef85645a.exe	38
PID 2596 set thread context of 1196	2596	MSBuild.exe	21
PID 2324 set thread context of 1196	2324	cmstp.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 6 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	cmstp.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	4d49933551f01cc730f63fd290ecb61f4bfa880a0660f0ec7363e148ef85645a.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

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
2668	schtasks.exe

Suspicious behavior: EnumeratesProcesses 34 IoCs

pid	Process
1576	4d49933551f01cc730f63fd290ecb61f4bfa880a0660f0ec7363e148ef85645a.exe
1576	4d49933551f01cc730f63fd290ecb61f4bfa880a0660f0ec7363e148ef85645a.exe
1576	4d49933551f01cc730f63fd290ecb61f4bfa880a0660f0ec7363e148ef85645a.exe
2688	powershell.exe
2864	powershell.exe
2596	MSBuild.exe
1576	4d49933551f01cc730f63fd290ecb61f4bfa880a0660f0ec7363e148ef85645a.exe
2596	MSBuild.exe
2324	cmstp.exe
2324	cmstp.exe
2324	cmstp.exe
2324	cmstp.exe
2324	cmstp.exe
2324	cmstp.exe
2324	cmstp.exe
2324	cmstp.exe
2324	cmstp.exe
2324	cmstp.exe
2324	cmstp.exe
2324	cmstp.exe
2324	cmstp.exe
2324	cmstp.exe
2324	cmstp.exe
2324	cmstp.exe
2324	cmstp.exe
2324	cmstp.exe
2324	cmstp.exe
2324	cmstp.exe
2324	cmstp.exe
2324	cmstp.exe
2324	cmstp.exe
2324	cmstp.exe
2324	cmstp.exe
2324	cmstp.exe

Suspicious behavior: MapViewOfSection 5 IoCs

pid	Process
2596	MSBuild.exe
2596	MSBuild.exe
2596	MSBuild.exe
2324	cmstp.exe
2324	cmstp.exe

Suspicious use of AdjustPrivilegeToken 5 IoCs

description	pid	Process
Token: SeDebugPrivilege	1576	4d49933551f01cc730f63fd290ecb61f4bfa880a0660f0ec7363e148ef85645a.exe
Token: SeDebugPrivilege	2688	powershell.exe
Token: SeDebugPrivilege	2864	powershell.exe
Token: SeDebugPrivilege	2596	MSBuild.exe
Token: SeDebugPrivilege	2324	cmstp.exe

Suspicious use of WriteProcessMemory 34 IoCs

description	pid	Process	procid_target
PID 1576 wrote to memory of 2688	1576	4d49933551f01cc730f63fd290ecb61f4bfa880a0660f0ec7363e148ef85645a.exe	31
PID 1576 wrote to memory of 2688	1576	4d49933551f01cc730f63fd290ecb61f4bfa880a0660f0ec7363e148ef85645a.exe	31
PID 1576 wrote to memory of 2688	1576	4d49933551f01cc730f63fd290ecb61f4bfa880a0660f0ec7363e148ef85645a.exe	31
PID 1576 wrote to memory of 2688	1576	4d49933551f01cc730f63fd290ecb61f4bfa880a0660f0ec7363e148ef85645a.exe	31
PID 1576 wrote to memory of 2864	1576	4d49933551f01cc730f63fd290ecb61f4bfa880a0660f0ec7363e148ef85645a.exe	33
PID 1576 wrote to memory of 2864	1576	4d49933551f01cc730f63fd290ecb61f4bfa880a0660f0ec7363e148ef85645a.exe	33
PID 1576 wrote to memory of 2864	1576	4d49933551f01cc730f63fd290ecb61f4bfa880a0660f0ec7363e148ef85645a.exe	33
PID 1576 wrote to memory of 2864	1576	4d49933551f01cc730f63fd290ecb61f4bfa880a0660f0ec7363e148ef85645a.exe	33
PID 1576 wrote to memory of 2668	1576	4d49933551f01cc730f63fd290ecb61f4bfa880a0660f0ec7363e148ef85645a.exe	35
PID 1576 wrote to memory of 2668	1576	4d49933551f01cc730f63fd290ecb61f4bfa880a0660f0ec7363e148ef85645a.exe	35
PID 1576 wrote to memory of 2668	1576	4d49933551f01cc730f63fd290ecb61f4bfa880a0660f0ec7363e148ef85645a.exe	35
PID 1576 wrote to memory of 2668	1576	4d49933551f01cc730f63fd290ecb61f4bfa880a0660f0ec7363e148ef85645a.exe	35
PID 1576 wrote to memory of 1824	1576	4d49933551f01cc730f63fd290ecb61f4bfa880a0660f0ec7363e148ef85645a.exe	37
PID 1576 wrote to memory of 1824	1576	4d49933551f01cc730f63fd290ecb61f4bfa880a0660f0ec7363e148ef85645a.exe	37
PID 1576 wrote to memory of 1824	1576	4d49933551f01cc730f63fd290ecb61f4bfa880a0660f0ec7363e148ef85645a.exe	37
PID 1576 wrote to memory of 1824	1576	4d49933551f01cc730f63fd290ecb61f4bfa880a0660f0ec7363e148ef85645a.exe	37
PID 1576 wrote to memory of 2596	1576	4d49933551f01cc730f63fd290ecb61f4bfa880a0660f0ec7363e148ef85645a.exe	38
PID 1576 wrote to memory of 2596	1576	4d49933551f01cc730f63fd290ecb61f4bfa880a0660f0ec7363e148ef85645a.exe	38
PID 1576 wrote to memory of 2596	1576	4d49933551f01cc730f63fd290ecb61f4bfa880a0660f0ec7363e148ef85645a.exe	38
PID 1576 wrote to memory of 2596	1576	4d49933551f01cc730f63fd290ecb61f4bfa880a0660f0ec7363e148ef85645a.exe	38
PID 1576 wrote to memory of 2596	1576	4d49933551f01cc730f63fd290ecb61f4bfa880a0660f0ec7363e148ef85645a.exe	38
PID 1576 wrote to memory of 2596	1576	4d49933551f01cc730f63fd290ecb61f4bfa880a0660f0ec7363e148ef85645a.exe	38
PID 1576 wrote to memory of 2596	1576	4d49933551f01cc730f63fd290ecb61f4bfa880a0660f0ec7363e148ef85645a.exe	38
PID 1196 wrote to memory of 2324	1196	Explorer.EXE	40
PID 1196 wrote to memory of 2324	1196	Explorer.EXE	40
PID 1196 wrote to memory of 2324	1196	Explorer.EXE	40
PID 1196 wrote to memory of 2324	1196	Explorer.EXE	40
PID 1196 wrote to memory of 2324	1196	Explorer.EXE	40
PID 1196 wrote to memory of 2324	1196	Explorer.EXE	40
PID 1196 wrote to memory of 2324	1196	Explorer.EXE	40
PID 2324 wrote to memory of 2736	2324	cmstp.exe	41
PID 2324 wrote to memory of 2736	2324	cmstp.exe	41
PID 2324 wrote to memory of 2736	2324	cmstp.exe	41
PID 2324 wrote to memory of 2736	2324	cmstp.exe	41

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of WriteProcessMemory
PID:1196
- C:\Users\Admin\AppData\Local\Temp\4d49933551f01cc730f63fd290ecb61f4bfa880a0660f0ec7363e148ef85645a.exe
  "C:\Users\Admin\AppData\Local\Temp\4d49933551f01cc730f63fd290ecb61f4bfa880a0660f0ec7363e148ef85645a.exe"
  2⤵
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:1576
- - 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\4d49933551f01cc730f63fd290ecb61f4bfa880a0660f0ec7363e148ef85645a.exe"
    3⤵
    - Command and Scripting Interpreter: PowerShell
    - System Location Discovery: System Language Discovery
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:2688
- - C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
    "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\xnnxAkrxh.exe"
    3⤵
    - Command and Scripting Interpreter: PowerShell
    - System Location Discovery: System Language Discovery
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:2864
- - C:\Windows\SysWOW64\schtasks.exe
    "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\xnnxAkrxh" /XML "C:\Users\Admin\AppData\Local\Temp\tmp1FB1.tmp"
    3⤵
    - System Location Discovery: System Language Discovery
    - Scheduled Task/Job: Scheduled Task
    PID:2668
- - C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe
    "C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe"
    3⤵
    PID:1824
- - C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe
    "C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe"
    3⤵
    - Suspicious use of SetThreadContext
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious behavior: MapViewOfSection
    - Suspicious use of AdjustPrivilegeToken
    PID:2596
- C:\Windows\SysWOW64\autofmt.exe
  "C:\Windows\SysWOW64\autofmt.exe"
  2⤵
  PID:2620
- C:\Windows\SysWOW64\cmstp.exe
  "C:\Windows\SysWOW64\cmstp.exe"
  2⤵
  - 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:2324
- - C:\Windows\SysWOW64\cmd.exe
    /c del "C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe"
    3⤵
    - System Location Discovery: System Language Discovery
    PID:2736

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\tmp1FB1.tmp

Filesize
1KB

MD5
587463711f0bcedd5908e1011a086023

SHA1
a574cbe501234b22db754f7cdfdaebf3cc589810

SHA256
4a0d1f1cf72034d8f69f554c3f00029e8f9273d1979cdf296abdd931c55cc739

SHA512
eeb628c0d7aeacf7f67821421def23e1c17941a7acccd7d7abfa4254850a58b3fee532eb43391f0161c17918ce5c44d61701097846fca4de5c98ed194b2c053c

Download Submit
C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\FXK4978PTO1EM4IKHCQ6.temp

Filesize
7KB

MD5
cb5851668339412f9fa108f5b68d8949

SHA1
499cf7391233b25ad2bc71b53a8655415f36111e

SHA256
f19c8f5f7d302b7dae6a3e8d531fa7a10f687f25936d1bdced29d9e2b4c181cd

SHA512
46a21785dc37afe2e2e30222e10f74dcf6188d0ef0c280ba916d0ac61e5de8969e985c0fc8ee559890987708a9b3f8739a54e3f66f2c2eeb94fc0b09205b7b1e

Download Submit
memory/1576-4-0x000000007443E000-0x000000007443F000-memory.dmp

Filesize
4KB

Download
memory/1576-26-0x0000000074430000-0x0000000074B1E000-memory.dmp

Filesize
6.9MB

Download
memory/1576-0-0x000000007443E000-0x000000007443F000-memory.dmp

Filesize
4KB

Download
memory/1576-5-0x0000000074430000-0x0000000074B1E000-memory.dmp

Filesize
6.9MB

Download
memory/1576-6-0x0000000005CD0000-0x0000000005D48000-memory.dmp

Filesize
480KB

Download
memory/1576-2-0x0000000074430000-0x0000000074B1E000-memory.dmp

Filesize
6.9MB

Download
memory/1576-1-0x0000000000200000-0x00000000002A8000-memory.dmp

Filesize
672KB

Download
memory/1576-3-0x00000000005C0000-0x00000000005DA000-memory.dmp

Filesize
104KB

Download
memory/2324-28-0x00000000000D0000-0x00000000000FF000-memory.dmp

Filesize
188KB

Download
memory/2324-27-0x0000000000800000-0x0000000000818000-memory.dmp

Filesize
96KB

Download
memory/2596-24-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/2596-19-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/2596-21-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/2596-23-0x00000000FFFDE000-0x00000000FFFDF000-memory.dmp

Filesize
4KB

Download