formbook | ae052316237d6d0d1a495a6d9ff0474dd0a7372a2aa2c059050975a8d67972fd

General

Target

Payment Details.doc.exe
Size

615KB
MD5

c540340d026003811ae973ade3b12fad
SHA1

a55ce30621fc9185184c339fba319ba05b771030
SHA256

ae052316237d6d0d1a495a6d9ff0474dd0a7372a2aa2c059050975a8d67972fd
SHA512

bdf6418288cc4483081dc6a5533894520dc5106bdf258a482a2f66199543479aa94d352111e8148fa235d40cb84d20ab0dd835f14c49cacca78293e350feb787
SSDEEP

12288:c8Ocp/NyYXJAvr7Ri+3PqLyI3NAhHcapuw1+WZlRqOiVCoW0xkR:qaFnKvx/qmI2hHcab1bZl4VCog

Score

10^/10

formbook m49z discovery execution rat spyware stealer trojan

Malware Config

Extracted

Family

formbook

Version

4.1

Campaign

m49z

Decoy

ormswarm.xyz

awn-care-63587.bond

uymetanail5.online

mergencyloan007.xyz

545.top

eiliao596.pro

ackersandmoverschennai.net

ehdiahmadvandmusicbest.click

tlgxmb2024.cloud

ulfcoastharborhopper.pro

rohns-disease-early-signs.today

oldenhorizonsbgcl.click

weetindulgencepro.xyz

yexoiup.xyz

yself-solar.net

kfirsatimla.online

bropub3.online

ouljourney.online

usvf76f.shop

onnaberich.online

Signatures

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

Formbook payload 3 IoCs

rat

resource	yara_rule
behavioral1/memory/2316-9-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral1/memory/2316-13-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral1/memory/2748-20-0x0000000000090000-0x00000000000BF000-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
2056	powershell.exe

Suspicious use of SetThreadContext 3 IoCs

description	pid	Process	procid_target
PID 1732 set thread context of 2316	1732	Payment Details.doc.exe	32
PID 2316 set thread context of 1184	2316	RegSvcs.exe	21
PID 2748 set thread context of 1184	2748	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 4 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	Payment Details.doc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	powershell.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmstp.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe

Suspicious behavior: EnumeratesProcesses 30 IoCs

pid	Process
2316	RegSvcs.exe
2316	RegSvcs.exe
2056	powershell.exe
2748	cmstp.exe
2748	cmstp.exe
2748	cmstp.exe
2748	cmstp.exe
2748	cmstp.exe
2748	cmstp.exe
2748	cmstp.exe
2748	cmstp.exe
2748	cmstp.exe
2748	cmstp.exe
2748	cmstp.exe
2748	cmstp.exe
2748	cmstp.exe
2748	cmstp.exe
2748	cmstp.exe
2748	cmstp.exe
2748	cmstp.exe
2748	cmstp.exe
2748	cmstp.exe
2748	cmstp.exe
2748	cmstp.exe
2748	cmstp.exe
2748	cmstp.exe
2748	cmstp.exe
2748	cmstp.exe
2748	cmstp.exe
2748	cmstp.exe

Suspicious behavior: MapViewOfSection 5 IoCs

pid	Process
2316	RegSvcs.exe
2316	RegSvcs.exe
2316	RegSvcs.exe
2748	cmstp.exe
2748	cmstp.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeDebugPrivilege	2316	RegSvcs.exe
Token: SeDebugPrivilege	2056	powershell.exe
Token: SeDebugPrivilege	2748	cmstp.exe

Suspicious use of WriteProcessMemory 25 IoCs

description	pid	Process	procid_target
PID 1732 wrote to memory of 2056	1732	Payment Details.doc.exe	31
PID 1732 wrote to memory of 2056	1732	Payment Details.doc.exe	31
PID 1732 wrote to memory of 2056	1732	Payment Details.doc.exe	31
PID 1732 wrote to memory of 2056	1732	Payment Details.doc.exe	31
PID 1732 wrote to memory of 2316	1732	Payment Details.doc.exe	32
PID 1732 wrote to memory of 2316	1732	Payment Details.doc.exe	32
PID 1732 wrote to memory of 2316	1732	Payment Details.doc.exe	32
PID 1732 wrote to memory of 2316	1732	Payment Details.doc.exe	32
PID 1732 wrote to memory of 2316	1732	Payment Details.doc.exe	32
PID 1732 wrote to memory of 2316	1732	Payment Details.doc.exe	32
PID 1732 wrote to memory of 2316	1732	Payment Details.doc.exe	32
PID 1732 wrote to memory of 2316	1732	Payment Details.doc.exe	32
PID 1732 wrote to memory of 2316	1732	Payment Details.doc.exe	32
PID 1732 wrote to memory of 2316	1732	Payment Details.doc.exe	32
PID 1184 wrote to memory of 2748	1184	Explorer.EXE	34
PID 1184 wrote to memory of 2748	1184	Explorer.EXE	34
PID 1184 wrote to memory of 2748	1184	Explorer.EXE	34
PID 1184 wrote to memory of 2748	1184	Explorer.EXE	34
PID 1184 wrote to memory of 2748	1184	Explorer.EXE	34
PID 1184 wrote to memory of 2748	1184	Explorer.EXE	34
PID 1184 wrote to memory of 2748	1184	Explorer.EXE	34
PID 2748 wrote to memory of 2880	2748	cmstp.exe	35
PID 2748 wrote to memory of 2880	2748	cmstp.exe	35
PID 2748 wrote to memory of 2880	2748	cmstp.exe	35
PID 2748 wrote to memory of 2880	2748	cmstp.exe	35

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of WriteProcessMemory
PID:1184
- C:\Users\Admin\AppData\Local\Temp\Payment Details.doc.exe
  "C:\Users\Admin\AppData\Local\Temp\Payment Details.doc.exe"
  2⤵
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:1732
- - 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\Payment Details.doc.exe"
    3⤵
    - Command and Scripting Interpreter: PowerShell
    - System Location Discovery: System Language Discovery
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:2056
- - 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:2316
- 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:2748
- - 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:2880

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

1

T1059

PowerShell

1

T1059.001

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

1

T1082

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/1184-15-0x0000000000170000-0x0000000000270000-memory.dmp

Filesize
1024KB

Download
memory/1184-24-0x0000000005560000-0x0000000005636000-memory.dmp

Filesize
856KB

Download
memory/1184-16-0x0000000005560000-0x0000000005636000-memory.dmp

Filesize
856KB

Download
memory/1732-4-0x0000000005030000-0x00000000050A6000-memory.dmp

Filesize
472KB

Download
memory/1732-10-0x0000000073FE0000-0x00000000746CE000-memory.dmp

Filesize
6.9MB

Download
memory/1732-1-0x0000000000B30000-0x0000000000BCC000-memory.dmp

Filesize
624KB

Download
memory/1732-2-0x0000000073FE0000-0x00000000746CE000-memory.dmp

Filesize
6.9MB

Download
memory/1732-0-0x0000000073FEE000-0x0000000073FEF000-memory.dmp

Filesize
4KB

Download
memory/1732-3-0x0000000000470000-0x0000000000488000-memory.dmp

Filesize
96KB

Download
memory/2316-6-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/2316-11-0x0000000000B10000-0x0000000000E13000-memory.dmp

Filesize
3.0MB

Download
memory/2316-14-0x00000000003B0000-0x00000000003C4000-memory.dmp

Filesize
80KB

Download
memory/2316-5-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/2316-9-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/2316-13-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/2316-7-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2748-19-0x0000000000D00000-0x0000000000D18000-memory.dmp

Filesize
96KB

Download
memory/2748-20-0x0000000000090000-0x00000000000BF000-memory.dmp

Filesize
188KB

Download

Analysis

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