formbook | 0460b13245e1675310035b772097a9c7f459f00a90ed1b368761ed6553abc009

General

Target

3.exe
Size

764KB
MD5

9720f4191c1a08e6297cebeef23aafbc
SHA1

d1bdf37d7ed47dcc57e05eabd6f814a4efec7483
SHA256

0460b13245e1675310035b772097a9c7f459f00a90ed1b368761ed6553abc009
SHA512

0cc30eaa5f7cb5022d4b0c7f4ebeb12efe21166daa6704664f11736b4ae5c103d6e3537ab4f6bf31f8d4616676e755fe386d7a4a57ee7dd7a7fb9948df76506a
SSDEEP

12288:I1atsD16mMUbmHoTt+I2FQgTWxvHpvG1x2BYZjmEovkR:LiD16xMmIToQGOHFG1cBgiET

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 3 IoCs

rat

resource	yara_rule
behavioral1/memory/2328-11-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral1/memory/2328-15-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral1/memory/2724-21-0x0000000000080000-0x00000000000AF000-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
2280	powershell.exe

Deletes itself 1 IoCs

pid	Process
1708	cmd.exe

Suspicious use of SetThreadContext 3 IoCs

description	pid	Process	procid_target
PID 2496 set thread context of 2328	2496	3.exe	33
PID 2328 set thread context of 1196	2328	3.exe	21
PID 2724 set thread context of 1196	2724	msdt.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	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	3.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	powershell.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	msdt.exe

Suspicious behavior: EnumeratesProcesses 32 IoCs

pid	Process
2496	3.exe
2496	3.exe
2328	3.exe
2328	3.exe
2280	powershell.exe
2724	msdt.exe
2724	msdt.exe
2724	msdt.exe
2724	msdt.exe
2724	msdt.exe
2724	msdt.exe
2724	msdt.exe
2724	msdt.exe
2724	msdt.exe
2724	msdt.exe
2724	msdt.exe
2724	msdt.exe
2724	msdt.exe
2724	msdt.exe
2724	msdt.exe
2724	msdt.exe
2724	msdt.exe
2724	msdt.exe
2724	msdt.exe
2724	msdt.exe
2724	msdt.exe
2724	msdt.exe
2724	msdt.exe
2724	msdt.exe
2724	msdt.exe
2724	msdt.exe
2724	msdt.exe

Suspicious behavior: MapViewOfSection 5 IoCs

pid	Process
2328	3.exe
2328	3.exe
2328	3.exe
2724	msdt.exe
2724	msdt.exe

Suspicious use of AdjustPrivilegeToken 4 IoCs

description	pid	Process
Token: SeDebugPrivilege	2496	3.exe
Token: SeDebugPrivilege	2328	3.exe
Token: SeDebugPrivilege	2280	powershell.exe
Token: SeDebugPrivilege	2724	msdt.exe

Suspicious use of WriteProcessMemory 19 IoCs

description	pid	Process	procid_target
PID 2496 wrote to memory of 2280	2496	3.exe	31
PID 2496 wrote to memory of 2280	2496	3.exe	31
PID 2496 wrote to memory of 2280	2496	3.exe	31
PID 2496 wrote to memory of 2280	2496	3.exe	31
PID 2496 wrote to memory of 2328	2496	3.exe	33
PID 2496 wrote to memory of 2328	2496	3.exe	33
PID 2496 wrote to memory of 2328	2496	3.exe	33
PID 2496 wrote to memory of 2328	2496	3.exe	33
PID 2496 wrote to memory of 2328	2496	3.exe	33
PID 2496 wrote to memory of 2328	2496	3.exe	33
PID 2496 wrote to memory of 2328	2496	3.exe	33
PID 1196 wrote to memory of 2724	1196	Explorer.EXE	34
PID 1196 wrote to memory of 2724	1196	Explorer.EXE	34
PID 1196 wrote to memory of 2724	1196	Explorer.EXE	34
PID 1196 wrote to memory of 2724	1196	Explorer.EXE	34
PID 2724 wrote to memory of 1708	2724	msdt.exe	35
PID 2724 wrote to memory of 1708	2724	msdt.exe	35
PID 2724 wrote to memory of 1708	2724	msdt.exe	35
PID 2724 wrote to memory of 1708	2724	msdt.exe	35

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of WriteProcessMemory
PID:1196
- C:\Users\Admin\AppData\Local\Temp\3.exe
  "C:\Users\Admin\AppData\Local\Temp\3.exe"
  2⤵
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:2496
- - 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\3.exe"
    3⤵
    - Command and Scripting Interpreter: PowerShell
    - System Location Discovery: System Language Discovery
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:2280
- - C:\Users\Admin\AppData\Local\Temp\3.exe
    "C:\Users\Admin\AppData\Local\Temp\3.exe"
    3⤵
    - Suspicious use of SetThreadContext
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious behavior: MapViewOfSection
    - Suspicious use of AdjustPrivilegeToken
    PID:2328
- C:\Windows\SysWOW64\msdt.exe
  "C:\Windows\SysWOW64\msdt.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:2724
- - C:\Windows\SysWOW64\cmd.exe
    /c del "C:\Users\Admin\AppData\Local\Temp\3.exe"
    3⤵
    - Deletes itself
    - System Location Discovery: System Language Discovery
    PID:1708

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

Loading Replay Monitor...

Downloads

memory/1196-17-0x0000000006520000-0x0000000006633000-memory.dmp

Filesize
1.1MB

Download
memory/1196-22-0x0000000006520000-0x0000000006633000-memory.dmp

Filesize
1.1MB

Download
memory/2328-13-0x00000000009C0000-0x0000000000CC3000-memory.dmp

Filesize
3.0MB

Download
memory/2328-15-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/2328-16-0x0000000000150000-0x0000000000164000-memory.dmp

Filesize
80KB

Download
memory/2328-8-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/2328-9-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2328-11-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/2328-7-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/2496-6-0x0000000004480000-0x00000000044F6000-memory.dmp

Filesize
472KB

Download
memory/2496-5-0x0000000074680000-0x0000000074D6E000-memory.dmp

Filesize
6.9MB

Download
memory/2496-12-0x0000000074680000-0x0000000074D6E000-memory.dmp

Filesize
6.9MB

Download
memory/2496-0-0x000000007468E000-0x000000007468F000-memory.dmp

Filesize
4KB

Download
memory/2496-4-0x000000007468E000-0x000000007468F000-memory.dmp

Filesize
4KB

Download
memory/2496-2-0x0000000074680000-0x0000000074D6E000-memory.dmp

Filesize
6.9MB

Download
memory/2496-3-0x0000000000A40000-0x0000000000A58000-memory.dmp

Filesize
96KB

Download
memory/2496-1-0x0000000000E60000-0x0000000000F22000-memory.dmp

Filesize
776KB

Download
memory/2724-20-0x00000000009D0000-0x0000000000AC4000-memory.dmp

Filesize
976KB

Download
memory/2724-21-0x0000000000080000-0x00000000000AF000-memory.dmp

Filesize
188KB

Download

Analysis

Sharing