formbook | a93a12bb8d2cee66ade4a517802d9dec8ae56bb0b4f5da52f9d0cd81a965c332

General

Target

64a8f5c2209bf86e1aa4489fffa5cf93aee6955b0106909345a313de38ad7885.exe
Size

712KB
MD5

6cfdfa1de0f031646ee75bde799cb877
SHA1

6da4c76342858daf1c4e55d537ebfe8b846b87b1
SHA256

64a8f5c2209bf86e1aa4489fffa5cf93aee6955b0106909345a313de38ad7885
SHA512

77acb0a4e390c687d5e4c70c9c4b2f4c6b3e01cd53faf61e3d3e760f126c843ec3a51321d5110796891d0409c3eddbae6cf8653e31c19a77d3f411914ccce72d
SSDEEP

12288:nX5Xt1wWT9YeNqKXO0WTmPUIBdL23sUk/d6nifUmyyDdU/wxSc1GFVeDB:hT9YKXO0fbf16nicsWoxS

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/2960-14-0x0000000000400000-0x000000000042F000-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
1988	powershell.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2416 set thread context of 2960	2416	64a8f5c2209bf86e1aa4489fffa5cf93aee6955b0106909345a313de38ad7885.exe	33

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 2 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	64a8f5c2209bf86e1aa4489fffa5cf93aee6955b0106909345a313de38ad7885.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	powershell.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
2960	64a8f5c2209bf86e1aa4489fffa5cf93aee6955b0106909345a313de38ad7885.exe
1988	powershell.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	1988	powershell.exe

Suspicious use of WriteProcessMemory 11 IoCs

description	pid	Process	procid_target
PID 2416 wrote to memory of 1988	2416	64a8f5c2209bf86e1aa4489fffa5cf93aee6955b0106909345a313de38ad7885.exe	31
PID 2416 wrote to memory of 1988	2416	64a8f5c2209bf86e1aa4489fffa5cf93aee6955b0106909345a313de38ad7885.exe	31
PID 2416 wrote to memory of 1988	2416	64a8f5c2209bf86e1aa4489fffa5cf93aee6955b0106909345a313de38ad7885.exe	31
PID 2416 wrote to memory of 1988	2416	64a8f5c2209bf86e1aa4489fffa5cf93aee6955b0106909345a313de38ad7885.exe	31
PID 2416 wrote to memory of 2960	2416	64a8f5c2209bf86e1aa4489fffa5cf93aee6955b0106909345a313de38ad7885.exe	33
PID 2416 wrote to memory of 2960	2416	64a8f5c2209bf86e1aa4489fffa5cf93aee6955b0106909345a313de38ad7885.exe	33
PID 2416 wrote to memory of 2960	2416	64a8f5c2209bf86e1aa4489fffa5cf93aee6955b0106909345a313de38ad7885.exe	33
PID 2416 wrote to memory of 2960	2416	64a8f5c2209bf86e1aa4489fffa5cf93aee6955b0106909345a313de38ad7885.exe	33
PID 2416 wrote to memory of 2960	2416	64a8f5c2209bf86e1aa4489fffa5cf93aee6955b0106909345a313de38ad7885.exe	33
PID 2416 wrote to memory of 2960	2416	64a8f5c2209bf86e1aa4489fffa5cf93aee6955b0106909345a313de38ad7885.exe	33
PID 2416 wrote to memory of 2960	2416	64a8f5c2209bf86e1aa4489fffa5cf93aee6955b0106909345a313de38ad7885.exe	33

C:\Users\Admin\AppData\Local\Temp\64a8f5c2209bf86e1aa4489fffa5cf93aee6955b0106909345a313de38ad7885.exe
"C:\Users\Admin\AppData\Local\Temp\64a8f5c2209bf86e1aa4489fffa5cf93aee6955b0106909345a313de38ad7885.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2416
- 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\64a8f5c2209bf86e1aa4489fffa5cf93aee6955b0106909345a313de38ad7885.exe"
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:1988
- C:\Users\Admin\AppData\Local\Temp\64a8f5c2209bf86e1aa4489fffa5cf93aee6955b0106909345a313de38ad7885.exe
  "C:\Users\Admin\AppData\Local\Temp\64a8f5c2209bf86e1aa4489fffa5cf93aee6955b0106909345a313de38ad7885.exe"
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  PID:2960

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/2416-6-0x0000000007720000-0x000000000779A000-memory.dmp

Filesize
488KB

Download
memory/2416-1-0x0000000000D10000-0x0000000000DC8000-memory.dmp

Filesize
736KB

Download
memory/2416-2-0x0000000074990000-0x000000007507E000-memory.dmp

Filesize
6.9MB

Download
memory/2416-3-0x0000000000550000-0x0000000000568000-memory.dmp

Filesize
96KB

Download
memory/2416-4-0x000000007499E000-0x000000007499F000-memory.dmp

Filesize
4KB

Download
memory/2416-5-0x0000000074990000-0x000000007507E000-memory.dmp

Filesize
6.9MB

Download
memory/2416-0-0x000000007499E000-0x000000007499F000-memory.dmp

Filesize
4KB

Download
memory/2416-15-0x0000000074990000-0x000000007507E000-memory.dmp

Filesize
6.9MB

Download
memory/2960-14-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/2960-11-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2960-9-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/2960-7-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/2960-16-0x0000000000850000-0x0000000000B53000-memory.dmp

Filesize
3.0MB

Download

Analysis

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