formbook | 95d75622d314e27cd7ff796245897f4a68787a166d5dec0b2464d820e526492d

General

Target

6.exe
Size

762KB
MD5

8389dab9dc0d6595ea72c3550da3e1da
SHA1

51ca86545033133ac0b64cae05b28d5f3c2d6d8e
SHA256

95d75622d314e27cd7ff796245897f4a68787a166d5dec0b2464d820e526492d
SHA512

14b4c337e2381fbc34ecf59a073fc6d49934008a54d1c46075d7cd669734c5bf958ba15df444a7b5898dd559ed7a13fa4100254ca0daaf478cd50ac650311be0
SSDEEP

12288:uYgMIO8DfDrRrA0qzOq1+ceatVXmFvFMmRdLvn+H9srzlozkZIad:uYgnfvRkXBx2s9srz4UIad

Score

10^/10

formbook bc01 discovery execution rat spyware stealer trojan

Malware Config

Extracted

Family

formbook

Version

4.1

Campaign

bc01

Decoy

epatitis-treatment-26155.bond

52cy67sk.bond

nline-degree-6987776.world

ingxingdiandeng-2033.top

mberbreeze.cyou

48xc300mw.autos

obs-for-seniors-39582.bond

tpetersburg-3-tonn.online

egafon-parser.online

172jh.shop

ltraman.pro

bqfhnys.shop

ntercash24-cad.homes

uhtwister.cloud

alk-in-tubs-27353.bond

ucas-saaad.buzz

oko.events

8080713.xyz

refabricated-homes-74404.bond

inaa.boo

Signatures

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

Formbook payload 1 IoCs

rat

resource	yara_rule
behavioral1/memory/2472-12-0x0000000000400000-0x000000000042F000-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
2860	powershell.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2124 set thread context of 2472	2124	6.exe	31

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

System Information Discovery
T1082

Program crash 1 IoCs

pid	pid_target	Process	procid_target
2668	2472	WerFault.exe	31

System Location Discovery: System Language Discovery 1 TTPs 3 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	6.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	powershell.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	6.exe

Suspicious behavior: EnumeratesProcesses 1 IoCs

pid	Process
2860	powershell.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2860	powershell.exe

Suspicious use of WriteProcessMemory 15 IoCs

description	pid	Process	procid_target
PID 2124 wrote to memory of 2860	2124	6.exe	29
PID 2124 wrote to memory of 2860	2124	6.exe	29
PID 2124 wrote to memory of 2860	2124	6.exe	29
PID 2124 wrote to memory of 2860	2124	6.exe	29
PID 2124 wrote to memory of 2472	2124	6.exe	31
PID 2124 wrote to memory of 2472	2124	6.exe	31
PID 2124 wrote to memory of 2472	2124	6.exe	31
PID 2124 wrote to memory of 2472	2124	6.exe	31
PID 2124 wrote to memory of 2472	2124	6.exe	31
PID 2124 wrote to memory of 2472	2124	6.exe	31
PID 2124 wrote to memory of 2472	2124	6.exe	31
PID 2472 wrote to memory of 2668	2472	6.exe	32
PID 2472 wrote to memory of 2668	2472	6.exe	32
PID 2472 wrote to memory of 2668	2472	6.exe	32
PID 2472 wrote to memory of 2668	2472	6.exe	32

C:\Users\Admin\AppData\Local\Temp\6.exe
"C:\Users\Admin\AppData\Local\Temp\6.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2124
- 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\6.exe"
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2860
- C:\Users\Admin\AppData\Local\Temp\6.exe
  "C:\Users\Admin\AppData\Local\Temp\6.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2472
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 2472 -s 36
    3⤵
    - Program crash
    PID:2668

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/2124-0-0x00000000740CE000-0x00000000740CF000-memory.dmp

Filesize
4KB

Download
memory/2124-1-0x0000000000FA0000-0x0000000001064000-memory.dmp

Filesize
784KB

Download
memory/2124-2-0x00000000740C0000-0x00000000747AE000-memory.dmp

Filesize
6.9MB

Download
memory/2124-3-0x0000000000530000-0x0000000000556000-memory.dmp

Filesize
152KB

Download
memory/2124-4-0x00000000740CE000-0x00000000740CF000-memory.dmp

Filesize
4KB

Download
memory/2124-5-0x00000000740C0000-0x00000000747AE000-memory.dmp

Filesize
6.9MB

Download
memory/2124-6-0x00000000009E0000-0x0000000000A58000-memory.dmp

Filesize
480KB

Download
memory/2124-13-0x00000000740C0000-0x00000000747AE000-memory.dmp

Filesize
6.9MB

Download
memory/2472-7-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/2472-12-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/2472-10-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2472-9-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download

Analysis

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