formbook | 96798ee353f0de728c22d8b195ea54b525b6051e893191f5a3e897b4ab651f5a

General

Target

PO.exe
Size

770KB
MD5

c1635c946995f26c2bc72d1447c1cc6d
SHA1

55463dde7149dbef65f81050bfe7c6339b0017a7
SHA256

fd7a998d2f4db27ec6b0ec32459571e124128cf57ed9b8236374dc68519c8fa8
SHA512

978e8aeb6ead9e24a70d99c7abf997ecde00d9b7be4017c9b66ac2d27dd9e38c2935f579d86c40ad62f1ec8095fdcd4b5de98e07305f35834d4b36f79182da62
SSDEEP

24576:d9x4mDEoD8Kz+/22LlfcLsXetxlaIGgVT:d9x4mooDLzE7TYxlaq

Score

10^/10

formbook c24t discovery execution rat spyware stealer trojan

Malware Config

Extracted

Family

formbook

Version

4.1

Campaign

c24t

Decoy

ealthbridgeccs.online

ngelicais.art

uktuksu1.sbs

fapoker.asia

hecreature.tech

orenzoplaybest14.xyz

op-smartphones-deal.today

delark.click

7395.asia

otnews.cfd

j16e.xyz

oko.events

fscxb.top

roudtxliberals.vote

asas-br.bond

ourhealthyourlife.shop

fbpd.top

j9u9.xyz

uijiuw.top

aming-chair-37588.bond

Signatures

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

Formbook payload 1 IoCs

rat

resource	yara_rule
behavioral1/memory/2184-12-0x0000000000400000-0x000000000042F000-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
1096	powershell.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2204 set thread context of 2184	2204	PO.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
2288	2184	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	PO.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	PO.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	powershell.exe

Suspicious behavior: EnumeratesProcesses 3 IoCs

pid	Process
2204	PO.exe
2204	PO.exe
1096	powershell.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	2204	PO.exe
Token: SeDebugPrivilege	1096	powershell.exe

Suspicious use of WriteProcessMemory 15 IoCs

description	pid	Process	procid_target
PID 2204 wrote to memory of 1096	2204	PO.exe	31
PID 2204 wrote to memory of 1096	2204	PO.exe	31
PID 2204 wrote to memory of 1096	2204	PO.exe	31
PID 2204 wrote to memory of 1096	2204	PO.exe	31
PID 2204 wrote to memory of 2184	2204	PO.exe	33
PID 2204 wrote to memory of 2184	2204	PO.exe	33
PID 2204 wrote to memory of 2184	2204	PO.exe	33
PID 2204 wrote to memory of 2184	2204	PO.exe	33
PID 2204 wrote to memory of 2184	2204	PO.exe	33
PID 2204 wrote to memory of 2184	2204	PO.exe	33
PID 2204 wrote to memory of 2184	2204	PO.exe	33
PID 2184 wrote to memory of 2288	2184	PO.exe	34
PID 2184 wrote to memory of 2288	2184	PO.exe	34
PID 2184 wrote to memory of 2288	2184	PO.exe	34
PID 2184 wrote to memory of 2288	2184	PO.exe	34

C:\Users\Admin\AppData\Local\Temp\PO.exe
"C:\Users\Admin\AppData\Local\Temp\PO.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2204
- 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\PO.exe"
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:1096
- C:\Users\Admin\AppData\Local\Temp\PO.exe
  "C:\Users\Admin\AppData\Local\Temp\PO.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2184
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 2184 -s 36
    3⤵
    - Program crash
    PID:2288

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/2184-12-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/2184-10-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2184-9-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/2184-7-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/2204-0-0x0000000073E9E000-0x0000000073E9F000-memory.dmp

Filesize
4KB

Download
memory/2204-1-0x00000000011B0000-0x0000000001276000-memory.dmp

Filesize
792KB

Download
memory/2204-2-0x0000000073E90000-0x000000007457E000-memory.dmp

Filesize
6.9MB

Download
memory/2204-3-0x0000000000560000-0x0000000000572000-memory.dmp

Filesize
72KB

Download
memory/2204-4-0x0000000073E9E000-0x0000000073E9F000-memory.dmp

Filesize
4KB

Download
memory/2204-5-0x0000000073E90000-0x000000007457E000-memory.dmp

Filesize
6.9MB

Download
memory/2204-6-0x0000000004950000-0x00000000049C6000-memory.dmp

Filesize
472KB

Download
memory/2204-13-0x0000000073E90000-0x000000007457E000-memory.dmp

Filesize
6.9MB

Download

Analysis

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