formbook | b0f1c4f3d4d3dda1a8c8ee81ecbde9a91fa3923058c13ac69dc572193252e0a2

Analysis

max time kernel
146s
max time network
122s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
23-01-2025 04:04

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General

Target

b0f1c4f3d4d3dda1a8c8ee81ecbde9a91fa3923058c13ac69dc572193252e0a2.exe
Size

687KB
MD5

58c75c0c7af1046ac9db4f446765f213
SHA1

6409a5dcd59c36fde2cddec428f22286bd4dc3b0
SHA256

b0f1c4f3d4d3dda1a8c8ee81ecbde9a91fa3923058c13ac69dc572193252e0a2
SHA512

e557ae7f1e5d5fb8d5a1cda4b15de2873d1a49d99b41d2a9f5a2da1ab7511dcc6b512180e3dd1cebf42d042efd953edf32960e3ee29aa1957e227da8694a670d
SSDEEP

12288:AlLyWa+k0NoZzDHVZpPpEmRYlNqWQd62TMd5LfyuvGYec:Ok0WZfXkm8LQUbBN

Score

10^/10

formbook g10k discovery execution rat spyware stealer trojan

Malware Config

Extracted

Family

formbook

Version

4.1

Campaign

g10k

Decoy

utomation-tools-91489.bond

nugandshimmer.store

agazalarburada.net

tockfrenzy.sbs

idrift.net

linds-curtains-49899.bond

armonysupport.net

issa.xyz

emza.xyz

animobilya.xyz

les.fun

uckaeth.vip

urusheasycart.shop

xploring6304.xyz

62288.pro

gencies.team

74411.vip

uxit.online

ailygrowth.xyz

errickmarconi.online

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/2932-19-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral1/memory/2796-24-0x0000000000090000-0x00000000000BF000-memory.dmp	formbook

Command and Scripting Interpreter: PowerShell 1 TTPs 1 IoCs

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

execution

PowerShell

T1059.001

pid	Process
2692	powershell.exe

Suspicious use of SetThreadContext 3 IoCs

description	pid	Process	procid_target
PID 2500 set thread context of 2932	2500	b0f1c4f3d4d3dda1a8c8ee81ecbde9a91fa3923058c13ac69dc572193252e0a2.exe	35
PID 2932 set thread context of 1244	2932	RegSvcs.exe	21
PID 2796 set thread context of 1244	2796	wuapp.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 5 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	b0f1c4f3d4d3dda1a8c8ee81ecbde9a91fa3923058c13ac69dc572193252e0a2.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	wuapp.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
2840	schtasks.exe

Suspicious behavior: EnumeratesProcesses 31 IoCs

pid	Process
2500	b0f1c4f3d4d3dda1a8c8ee81ecbde9a91fa3923058c13ac69dc572193252e0a2.exe
2500	b0f1c4f3d4d3dda1a8c8ee81ecbde9a91fa3923058c13ac69dc572193252e0a2.exe
2932	RegSvcs.exe
2932	RegSvcs.exe
2692	powershell.exe
2796	wuapp.exe
2796	wuapp.exe
2796	wuapp.exe
2796	wuapp.exe
2796	wuapp.exe
2796	wuapp.exe
2796	wuapp.exe
2796	wuapp.exe
2796	wuapp.exe
2796	wuapp.exe
2796	wuapp.exe
2796	wuapp.exe
2796	wuapp.exe
2796	wuapp.exe
2796	wuapp.exe
2796	wuapp.exe
2796	wuapp.exe
2796	wuapp.exe
2796	wuapp.exe
2796	wuapp.exe
2796	wuapp.exe
2796	wuapp.exe
2796	wuapp.exe
2796	wuapp.exe
2796	wuapp.exe
2796	wuapp.exe

Suspicious behavior: MapViewOfSection 5 IoCs

pid	Process
2932	RegSvcs.exe
2932	RegSvcs.exe
2932	RegSvcs.exe
2796	wuapp.exe
2796	wuapp.exe

Suspicious use of AdjustPrivilegeToken 4 IoCs

description	pid	Process
Token: SeDebugPrivilege	2500	b0f1c4f3d4d3dda1a8c8ee81ecbde9a91fa3923058c13ac69dc572193252e0a2.exe
Token: SeDebugPrivilege	2932	RegSvcs.exe
Token: SeDebugPrivilege	2692	powershell.exe
Token: SeDebugPrivilege	2796	wuapp.exe

Suspicious use of WriteProcessMemory 29 IoCs

description	pid	Process	procid_target
PID 2500 wrote to memory of 2692	2500	b0f1c4f3d4d3dda1a8c8ee81ecbde9a91fa3923058c13ac69dc572193252e0a2.exe	31
PID 2500 wrote to memory of 2692	2500	b0f1c4f3d4d3dda1a8c8ee81ecbde9a91fa3923058c13ac69dc572193252e0a2.exe	31
PID 2500 wrote to memory of 2692	2500	b0f1c4f3d4d3dda1a8c8ee81ecbde9a91fa3923058c13ac69dc572193252e0a2.exe	31
PID 2500 wrote to memory of 2692	2500	b0f1c4f3d4d3dda1a8c8ee81ecbde9a91fa3923058c13ac69dc572193252e0a2.exe	31
PID 2500 wrote to memory of 2840	2500	b0f1c4f3d4d3dda1a8c8ee81ecbde9a91fa3923058c13ac69dc572193252e0a2.exe	33
PID 2500 wrote to memory of 2840	2500	b0f1c4f3d4d3dda1a8c8ee81ecbde9a91fa3923058c13ac69dc572193252e0a2.exe	33
PID 2500 wrote to memory of 2840	2500	b0f1c4f3d4d3dda1a8c8ee81ecbde9a91fa3923058c13ac69dc572193252e0a2.exe	33
PID 2500 wrote to memory of 2840	2500	b0f1c4f3d4d3dda1a8c8ee81ecbde9a91fa3923058c13ac69dc572193252e0a2.exe	33
PID 2500 wrote to memory of 2932	2500	b0f1c4f3d4d3dda1a8c8ee81ecbde9a91fa3923058c13ac69dc572193252e0a2.exe	35
PID 2500 wrote to memory of 2932	2500	b0f1c4f3d4d3dda1a8c8ee81ecbde9a91fa3923058c13ac69dc572193252e0a2.exe	35
PID 2500 wrote to memory of 2932	2500	b0f1c4f3d4d3dda1a8c8ee81ecbde9a91fa3923058c13ac69dc572193252e0a2.exe	35
PID 2500 wrote to memory of 2932	2500	b0f1c4f3d4d3dda1a8c8ee81ecbde9a91fa3923058c13ac69dc572193252e0a2.exe	35
PID 2500 wrote to memory of 2932	2500	b0f1c4f3d4d3dda1a8c8ee81ecbde9a91fa3923058c13ac69dc572193252e0a2.exe	35
PID 2500 wrote to memory of 2932	2500	b0f1c4f3d4d3dda1a8c8ee81ecbde9a91fa3923058c13ac69dc572193252e0a2.exe	35
PID 2500 wrote to memory of 2932	2500	b0f1c4f3d4d3dda1a8c8ee81ecbde9a91fa3923058c13ac69dc572193252e0a2.exe	35
PID 2500 wrote to memory of 2932	2500	b0f1c4f3d4d3dda1a8c8ee81ecbde9a91fa3923058c13ac69dc572193252e0a2.exe	35
PID 2500 wrote to memory of 2932	2500	b0f1c4f3d4d3dda1a8c8ee81ecbde9a91fa3923058c13ac69dc572193252e0a2.exe	35
PID 2500 wrote to memory of 2932	2500	b0f1c4f3d4d3dda1a8c8ee81ecbde9a91fa3923058c13ac69dc572193252e0a2.exe	35
PID 1244 wrote to memory of 2796	1244	Explorer.EXE	37
PID 1244 wrote to memory of 2796	1244	Explorer.EXE	37
PID 1244 wrote to memory of 2796	1244	Explorer.EXE	37
PID 1244 wrote to memory of 2796	1244	Explorer.EXE	37
PID 1244 wrote to memory of 2796	1244	Explorer.EXE	37
PID 1244 wrote to memory of 2796	1244	Explorer.EXE	37
PID 1244 wrote to memory of 2796	1244	Explorer.EXE	37
PID 2796 wrote to memory of 2600	2796	wuapp.exe	38
PID 2796 wrote to memory of 2600	2796	wuapp.exe	38
PID 2796 wrote to memory of 2600	2796	wuapp.exe	38
PID 2796 wrote to memory of 2600	2796	wuapp.exe	38

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of WriteProcessMemory
PID:1244
- C:\Users\Admin\AppData\Local\Temp\b0f1c4f3d4d3dda1a8c8ee81ecbde9a91fa3923058c13ac69dc572193252e0a2.exe
  "C:\Users\Admin\AppData\Local\Temp\b0f1c4f3d4d3dda1a8c8ee81ecbde9a91fa3923058c13ac69dc572193252e0a2.exe"
  2⤵
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:2500
- - C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
    "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\ISQeEUZdvSY.exe"
    3⤵
    - Command and Scripting Interpreter: PowerShell
    - System Location Discovery: System Language Discovery
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:2692
- - C:\Windows\SysWOW64\schtasks.exe
    "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\ISQeEUZdvSY" /XML "C:\Users\Admin\AppData\Local\Temp\tmp915.tmp"
    3⤵
    - System Location Discovery: System Language Discovery
    - Scheduled Task/Job: Scheduled Task
    PID:2840
- - 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
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious behavior: MapViewOfSection
    - Suspicious use of AdjustPrivilegeToken
    PID:2932
- C:\Windows\SysWOW64\autoconv.exe
  "C:\Windows\SysWOW64\autoconv.exe"
  2⤵
  PID:2620
- C:\Windows\SysWOW64\wuapp.exe
  "C:\Windows\SysWOW64\wuapp.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:2796
- - C:\Windows\SysWOW64\cmd.exe
    /c del "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe"
    3⤵
    - System Location Discovery: System Language Discovery
    PID:2600

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

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Downloads

C:\Users\Admin\AppData\Local\Temp\tmp915.tmp

Filesize
1KB

MD5
1ef903c59ca5bfcf3cef9b8c7a5b40b6

SHA1
cb238a045a81ea090e22776c32d0bbbec2c03830

SHA256
5d9982cf96dbc478a2a377140b57a905909dd1e61e2cd4bbc9137ba789debd43

SHA512
30bd5ac9f4e995327f525595a6de9e62828c96016ff6c52dd05e665bf402a70b3de8a72b490ec31c5800991f60d04b11fbb73535d5d5142afa05d416e5abccd9

Download Submit
memory/1244-22-0x0000000003E90000-0x0000000004090000-memory.dmp

Filesize
2.0MB

Download
memory/2500-20-0x0000000074870000-0x0000000074F5E000-memory.dmp

Filesize
6.9MB

Download
memory/2500-0-0x000000007487E000-0x000000007487F000-memory.dmp

Filesize
4KB

Download
memory/2500-4-0x000000007487E000-0x000000007487F000-memory.dmp

Filesize
4KB

Download
memory/2500-5-0x0000000074870000-0x0000000074F5E000-memory.dmp

Filesize
6.9MB

Download
memory/2500-6-0x0000000000300000-0x0000000000378000-memory.dmp

Filesize
480KB

Download
memory/2500-2-0x0000000074870000-0x0000000074F5E000-memory.dmp

Filesize
6.9MB

Download
memory/2500-1-0x0000000001390000-0x0000000001442000-memory.dmp

Filesize
712KB

Download
memory/2500-3-0x0000000000600000-0x000000000061E000-memory.dmp

Filesize
120KB

Download
memory/2796-23-0x0000000000970000-0x000000000097B000-memory.dmp

Filesize
44KB

Download
memory/2796-24-0x0000000000090000-0x00000000000BF000-memory.dmp

Filesize
188KB

Download
memory/2932-18-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2932-19-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/2932-16-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/2932-14-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download