formbook | 9c879cc3fc1fae674781f67f8d12beb21afd8c0deb4587f6766bbcbf48c1b084

Analysis

max time kernel
146s
max time network
120s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
15-01-2025 03:04

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General

Target

New purchase order.exe
Size

650KB
MD5

1b507df9a13477b647da450a1b79b2e7
SHA1

b0de85855b3462fe0b37c79831b391eeb044e437
SHA256

a3af3dcfd89b655982b6e044b681b140dcefbe0606d69b0b7839b8cda28ccc91
SHA512

37dcc8dd92a84009f81ebf394001de49bcf75818227bdbe135578f8f1dc57f4119c4cb6efd91ec70fe12202854ca472ec7435d3c0f713bf770f09967d61fe6a7
SSDEEP

12288:kYRxA4Y5lyA/BxSPC3NMl2v/wXb5DDH6dcW6f8HtdJqT6B2zJxWVqHU:bRB2XM5UN60STUAJE

Score

10^/10

formbook a01d discovery execution rat spyware stealer trojan

Malware Config

Extracted

Family

formbook

Version

4.1

Campaign

a01d

Decoy

eniorshousing05.shop

rywisevas.biz

4726.pizza

itchen-design-42093.bond

3456.tech

4825.plus

nlinecraps.xyz

itamins-52836.bond

nfluencer-marketing-40442.bond

nline-advertising-58573.bond

rautogroups.net

limbtrip.net

oftware-download-14501.bond

nline-advertising-66733.bond

erity.xyz

xknrksi.icu

x-ist.club

yber-security-26409.bond

oincatch.xyz

onitoring-devices-34077.bond

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/2964-24-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral1/memory/1736-28-0x0000000000090000-0x00000000000BF000-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
2884	powershell.exe
2692	powershell.exe

Suspicious use of SetThreadContext 3 IoCs

description	pid	Process	procid_target
PID 2220 set thread context of 2964	2220	New purchase order.exe	36
PID 2964 set thread context of 1100	2964	MSBuild.exe	19
PID 1736 set thread context of 1100	1736	cmstp.exe	19

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	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	New purchase order.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	cmstp.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
2572	schtasks.exe

Suspicious behavior: EnumeratesProcesses 32 IoCs

pid	Process
2220	New purchase order.exe
2692	powershell.exe
2884	powershell.exe
2220	New purchase order.exe
2964	MSBuild.exe
2964	MSBuild.exe
1736	cmstp.exe
1736	cmstp.exe
1736	cmstp.exe
1736	cmstp.exe
1736	cmstp.exe
1736	cmstp.exe
1736	cmstp.exe
1736	cmstp.exe
1736	cmstp.exe
1736	cmstp.exe
1736	cmstp.exe
1736	cmstp.exe
1736	cmstp.exe
1736	cmstp.exe
1736	cmstp.exe
1736	cmstp.exe
1736	cmstp.exe
1736	cmstp.exe
1736	cmstp.exe
1736	cmstp.exe
1736	cmstp.exe
1736	cmstp.exe
1736	cmstp.exe
1736	cmstp.exe
1736	cmstp.exe
1736	cmstp.exe

Suspicious behavior: MapViewOfSection 5 IoCs

pid	Process
2964	MSBuild.exe
2964	MSBuild.exe
2964	MSBuild.exe
1736	cmstp.exe
1736	cmstp.exe

Suspicious use of AdjustPrivilegeToken 5 IoCs

description	pid	Process
Token: SeDebugPrivilege	2220	New purchase order.exe
Token: SeDebugPrivilege	2692	powershell.exe
Token: SeDebugPrivilege	2884	powershell.exe
Token: SeDebugPrivilege	2964	MSBuild.exe
Token: SeDebugPrivilege	1736	cmstp.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 2220 wrote to memory of 2884	2220	New purchase order.exe	30
PID 2220 wrote to memory of 2884	2220	New purchase order.exe	30
PID 2220 wrote to memory of 2884	2220	New purchase order.exe	30
PID 2220 wrote to memory of 2884	2220	New purchase order.exe	30
PID 2220 wrote to memory of 2692	2220	New purchase order.exe	32
PID 2220 wrote to memory of 2692	2220	New purchase order.exe	32
PID 2220 wrote to memory of 2692	2220	New purchase order.exe	32
PID 2220 wrote to memory of 2692	2220	New purchase order.exe	32
PID 2220 wrote to memory of 2572	2220	New purchase order.exe	34
PID 2220 wrote to memory of 2572	2220	New purchase order.exe	34
PID 2220 wrote to memory of 2572	2220	New purchase order.exe	34
PID 2220 wrote to memory of 2572	2220	New purchase order.exe	34
PID 2220 wrote to memory of 2964	2220	New purchase order.exe	36
PID 2220 wrote to memory of 2964	2220	New purchase order.exe	36
PID 2220 wrote to memory of 2964	2220	New purchase order.exe	36
PID 2220 wrote to memory of 2964	2220	New purchase order.exe	36
PID 2220 wrote to memory of 2964	2220	New purchase order.exe	36
PID 2220 wrote to memory of 2964	2220	New purchase order.exe	36
PID 2220 wrote to memory of 2964	2220	New purchase order.exe	36
PID 1100 wrote to memory of 1736	1100	Explorer.EXE	37
PID 1100 wrote to memory of 1736	1100	Explorer.EXE	37
PID 1100 wrote to memory of 1736	1100	Explorer.EXE	37
PID 1100 wrote to memory of 1736	1100	Explorer.EXE	37
PID 1100 wrote to memory of 1736	1100	Explorer.EXE	37
PID 1100 wrote to memory of 1736	1100	Explorer.EXE	37
PID 1100 wrote to memory of 1736	1100	Explorer.EXE	37
PID 1736 wrote to memory of 2828	1736	cmstp.exe	38
PID 1736 wrote to memory of 2828	1736	cmstp.exe	38
PID 1736 wrote to memory of 2828	1736	cmstp.exe	38
PID 1736 wrote to memory of 2828	1736	cmstp.exe	38

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of WriteProcessMemory
PID:1100
- C:\Users\Admin\AppData\Local\Temp\New purchase order.exe
  "C:\Users\Admin\AppData\Local\Temp\New purchase order.exe"
  2⤵
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:2220
- - 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\New purchase order.exe"
    3⤵
    - Command and Scripting Interpreter: PowerShell
    - System Location Discovery: System Language Discovery
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:2884
- - C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
    "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\DjsaCPLWOz.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\DjsaCPLWOz" /XML "C:\Users\Admin\AppData\Local\Temp\tmpA9B7.tmp"
    3⤵
    - System Location Discovery: System Language Discovery
    - Scheduled Task/Job: Scheduled Task
    PID:2572
- - 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:2964
- 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:1736
- - 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:2828

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\tmpA9B7.tmp

Filesize
1KB

MD5
221003f2a29ff94bdef04d5e3c079d9e

SHA1
19d8004717f52f6d21a92350e40323a00af90abc

SHA256
2dc5f8aad8038b68d1f09728d0c965ebdb3d3ef147f88393b7e779db9db948c3

SHA512
d09711ab8ee3add165270421e00e26b694a5e159fce69fff916fd09297011d26941ad3160500a6628ebc32dbb12d258ccc0e5553237ec39507a5ef16f4eb5f5a

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

Filesize
7KB

MD5
ab1149b58d30578fea4a72269e742dde

SHA1
aa38f4cc9916fe2c51209a8f0c7aac1e8e80f02a

SHA256
68fa4e336e28c698c7a641810ba4f7ceeddde7257be2ec43bd4ef83a17375ca3

SHA512
ed6e3c77ccc8f5bc42d1fc9be58bc810225061e1946953d95c2a8a4073e1cac20b3cad08af8e0bb3f5bc2caaf7790d0879cc0c541006af1331550a3b6d79203a

Download Submit
memory/1736-28-0x0000000000090000-0x00000000000BF000-memory.dmp

Filesize
188KB

Download
memory/1736-27-0x00000000000C0000-0x00000000000D8000-memory.dmp

Filesize
96KB

Download
memory/2220-4-0x00000000746BE000-0x00000000746BF000-memory.dmp

Filesize
4KB

Download
memory/2220-5-0x00000000746B0000-0x0000000074D9E000-memory.dmp

Filesize
6.9MB

Download
memory/2220-6-0x0000000004F80000-0x0000000004FFA000-memory.dmp

Filesize
488KB

Download
memory/2220-0-0x00000000746BE000-0x00000000746BF000-memory.dmp

Filesize
4KB

Download
memory/2220-3-0x00000000004A0000-0x00000000004BA000-memory.dmp

Filesize
104KB

Download
memory/2220-25-0x00000000746B0000-0x0000000074D9E000-memory.dmp

Filesize
6.9MB

Download
memory/2220-2-0x00000000746B0000-0x0000000074D9E000-memory.dmp

Filesize
6.9MB

Download
memory/2220-1-0x0000000000910000-0x00000000009B8000-memory.dmp

Filesize
672KB

Download
memory/2964-19-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/2964-24-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/2964-23-0x00000000FFFDE000-0x00000000FFFDF000-memory.dmp

Filesize
4KB

Download
memory/2964-21-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download