formbook | e7fc9e51d81f4b40dca80a3d83ca54a03120566b6dd6f76e0299546ac178f633

General

Target

e7fc9e51d81f4b40dca80a3d83ca54a03120566b6dd6f76e0299546ac178f633.exe
Size

731KB
MD5

b13f89d8eafc3a90742bb8fe102e4225
SHA1

8c0a430ea82da3282be9c2dc2011c0d1b4a3cc2b
SHA256

e7fc9e51d81f4b40dca80a3d83ca54a03120566b6dd6f76e0299546ac178f633
SHA512

85d98bc784bce0cbf5d7264e44b89d1a72c7892aeb9defbe622f7844479d9dcd06d2679e7ec0e2f8691af334dfdbb17540ffb55f24e2f06b8ecb9f53b5f13e13
SSDEEP

12288:53O+0J9NQxftcBfz6wzGxGOuyNwuhzKm+gATKkwpf8Z0l14r7N5:JqJvQxFu76eGEnymcATXwpfGj7N

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/2748-12-0x0000000000400000-0x000000000042F000-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
2300	powershell.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2860 set thread context of 2748	2860	e7fc9e51d81f4b40dca80a3d83ca54a03120566b6dd6f76e0299546ac178f633.exe	33

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
2868	2748	WerFault.exe	33

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	e7fc9e51d81f4b40dca80a3d83ca54a03120566b6dd6f76e0299546ac178f633.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	powershell.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	e7fc9e51d81f4b40dca80a3d83ca54a03120566b6dd6f76e0299546ac178f633.exe

Suspicious behavior: EnumeratesProcesses 1 IoCs

pid	Process
2300	powershell.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2300	powershell.exe

Suspicious use of WriteProcessMemory 15 IoCs

description	pid	Process	procid_target
PID 2860 wrote to memory of 2300	2860	e7fc9e51d81f4b40dca80a3d83ca54a03120566b6dd6f76e0299546ac178f633.exe	31
PID 2860 wrote to memory of 2300	2860	e7fc9e51d81f4b40dca80a3d83ca54a03120566b6dd6f76e0299546ac178f633.exe	31
PID 2860 wrote to memory of 2300	2860	e7fc9e51d81f4b40dca80a3d83ca54a03120566b6dd6f76e0299546ac178f633.exe	31
PID 2860 wrote to memory of 2300	2860	e7fc9e51d81f4b40dca80a3d83ca54a03120566b6dd6f76e0299546ac178f633.exe	31
PID 2860 wrote to memory of 2748	2860	e7fc9e51d81f4b40dca80a3d83ca54a03120566b6dd6f76e0299546ac178f633.exe	33
PID 2860 wrote to memory of 2748	2860	e7fc9e51d81f4b40dca80a3d83ca54a03120566b6dd6f76e0299546ac178f633.exe	33
PID 2860 wrote to memory of 2748	2860	e7fc9e51d81f4b40dca80a3d83ca54a03120566b6dd6f76e0299546ac178f633.exe	33
PID 2860 wrote to memory of 2748	2860	e7fc9e51d81f4b40dca80a3d83ca54a03120566b6dd6f76e0299546ac178f633.exe	33
PID 2860 wrote to memory of 2748	2860	e7fc9e51d81f4b40dca80a3d83ca54a03120566b6dd6f76e0299546ac178f633.exe	33
PID 2860 wrote to memory of 2748	2860	e7fc9e51d81f4b40dca80a3d83ca54a03120566b6dd6f76e0299546ac178f633.exe	33
PID 2860 wrote to memory of 2748	2860	e7fc9e51d81f4b40dca80a3d83ca54a03120566b6dd6f76e0299546ac178f633.exe	33
PID 2748 wrote to memory of 2868	2748	e7fc9e51d81f4b40dca80a3d83ca54a03120566b6dd6f76e0299546ac178f633.exe	34
PID 2748 wrote to memory of 2868	2748	e7fc9e51d81f4b40dca80a3d83ca54a03120566b6dd6f76e0299546ac178f633.exe	34
PID 2748 wrote to memory of 2868	2748	e7fc9e51d81f4b40dca80a3d83ca54a03120566b6dd6f76e0299546ac178f633.exe	34
PID 2748 wrote to memory of 2868	2748	e7fc9e51d81f4b40dca80a3d83ca54a03120566b6dd6f76e0299546ac178f633.exe	34

C:\Users\Admin\AppData\Local\Temp\e7fc9e51d81f4b40dca80a3d83ca54a03120566b6dd6f76e0299546ac178f633.exe
"C:\Users\Admin\AppData\Local\Temp\e7fc9e51d81f4b40dca80a3d83ca54a03120566b6dd6f76e0299546ac178f633.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2860
- 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\e7fc9e51d81f4b40dca80a3d83ca54a03120566b6dd6f76e0299546ac178f633.exe"
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2300
- C:\Users\Admin\AppData\Local\Temp\e7fc9e51d81f4b40dca80a3d83ca54a03120566b6dd6f76e0299546ac178f633.exe
  "C:\Users\Admin\AppData\Local\Temp\e7fc9e51d81f4b40dca80a3d83ca54a03120566b6dd6f76e0299546ac178f633.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2748
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 2748 -s 36
    3⤵
    - Program crash
    PID:2868

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/2748-7-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/2748-10-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2748-12-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/2748-9-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/2860-0-0x00000000740BE000-0x00000000740BF000-memory.dmp

Filesize
4KB

Download
memory/2860-1-0x0000000000DA0000-0x0000000000E5E000-memory.dmp

Filesize
760KB

Download
memory/2860-2-0x00000000740B0000-0x000000007479E000-memory.dmp

Filesize
6.9MB

Download
memory/2860-3-0x0000000000480000-0x000000000049E000-memory.dmp

Filesize
120KB

Download
memory/2860-4-0x00000000740BE000-0x00000000740BF000-memory.dmp

Filesize
4KB

Download
memory/2860-5-0x00000000740B0000-0x000000007479E000-memory.dmp

Filesize
6.9MB

Download
memory/2860-6-0x0000000000970000-0x00000000009E6000-memory.dmp

Filesize
472KB

Download
memory/2860-13-0x00000000740B0000-0x000000007479E000-memory.dmp

Filesize
6.9MB

Download

Analysis

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