formbook | 89ae7b9ef0c8808f0f84c668065771881555164872af93422ba83745a12c359f

General

Target

5089124.exe
Size

603KB
MD5

5a7b139855700ca803dbc54daa52567e
SHA1

ed76b03d085d9a11a410c4f2bfa056d6c9639176
SHA256

223786813c2b26e84549506a10b63d6a7c619f99551cf4abaf636d1588f8a001
SHA512

64def05a152fc1c10ef1c8d27e27ef33338dabb5665d8d6897f6d7db0388cfbfc2a42a808ecdda96ce32d7dd14221ba4c84a22333626f26b40036fd0a83d6d2c
SSDEEP

12288:QOq8bQbKxrRaWJyBpk5Qs+/hsJntO3XOJWkdzdwSjNenBr0Q+p/PKxxQtmvV:Q0IKxhJwkO/intOOJNdz6ENGBYTZaN

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 4 IoCs

rat

resource	yara_rule
behavioral1/memory/1924-14-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral1/memory/1924-17-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral1/memory/1924-25-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral1/memory/2328-27-0x0000000000080000-0x00000000000AF000-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
2568	powershell.exe

Deletes itself 1 IoCs

pid	Process
316	cmd.exe

Suspicious use of SetThreadContext 4 IoCs

description	pid	Process	procid_target
PID 2948 set thread context of 1924	2948	5089124.exe	31
PID 1924 set thread context of 1228	1924	5089124.exe	21
PID 1924 set thread context of 1228	1924	5089124.exe	21
PID 2328 set thread context of 1228	2328	explorer.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	5089124.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	powershell.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	explorer.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe

Suspicious behavior: EnumeratesProcesses 31 IoCs

pid	Process
2948	5089124.exe
2948	5089124.exe
1924	5089124.exe
1924	5089124.exe
2568	powershell.exe
1924	5089124.exe
2328	explorer.exe
2328	explorer.exe
2328	explorer.exe
2328	explorer.exe
2328	explorer.exe
2328	explorer.exe
2328	explorer.exe
2328	explorer.exe
2328	explorer.exe
2328	explorer.exe
2328	explorer.exe
2328	explorer.exe
2328	explorer.exe
2328	explorer.exe
2328	explorer.exe
2328	explorer.exe
2328	explorer.exe
2328	explorer.exe
2328	explorer.exe
2328	explorer.exe
2328	explorer.exe
2328	explorer.exe
2328	explorer.exe
2328	explorer.exe
2328	explorer.exe

Suspicious behavior: MapViewOfSection 6 IoCs

pid	Process
1924	5089124.exe
1924	5089124.exe
1924	5089124.exe
1924	5089124.exe
2328	explorer.exe
2328	explorer.exe

Suspicious use of AdjustPrivilegeToken 4 IoCs

description	pid	Process
Token: SeDebugPrivilege	2948	5089124.exe
Token: SeDebugPrivilege	1924	5089124.exe
Token: SeDebugPrivilege	2568	powershell.exe
Token: SeDebugPrivilege	2328	explorer.exe

Suspicious use of WriteProcessMemory 19 IoCs

description	pid	Process	procid_target
PID 2948 wrote to memory of 2568	2948	5089124.exe	30
PID 2948 wrote to memory of 2568	2948	5089124.exe	30
PID 2948 wrote to memory of 2568	2948	5089124.exe	30
PID 2948 wrote to memory of 2568	2948	5089124.exe	30
PID 2948 wrote to memory of 1924	2948	5089124.exe	31
PID 2948 wrote to memory of 1924	2948	5089124.exe	31
PID 2948 wrote to memory of 1924	2948	5089124.exe	31
PID 2948 wrote to memory of 1924	2948	5089124.exe	31
PID 2948 wrote to memory of 1924	2948	5089124.exe	31
PID 2948 wrote to memory of 1924	2948	5089124.exe	31
PID 2948 wrote to memory of 1924	2948	5089124.exe	31
PID 1228 wrote to memory of 2328	1228	Explorer.EXE	33
PID 1228 wrote to memory of 2328	1228	Explorer.EXE	33
PID 1228 wrote to memory of 2328	1228	Explorer.EXE	33
PID 1228 wrote to memory of 2328	1228	Explorer.EXE	33
PID 2328 wrote to memory of 316	2328	explorer.exe	34
PID 2328 wrote to memory of 316	2328	explorer.exe	34
PID 2328 wrote to memory of 316	2328	explorer.exe	34
PID 2328 wrote to memory of 316	2328	explorer.exe	34

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of WriteProcessMemory
PID:1228
- C:\Users\Admin\AppData\Local\Temp\5089124.exe
  "C:\Users\Admin\AppData\Local\Temp\5089124.exe"
  2⤵
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:2948
- - 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\5089124.exe"
    3⤵
    - Command and Scripting Interpreter: PowerShell
    - System Location Discovery: System Language Discovery
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:2568
- - C:\Users\Admin\AppData\Local\Temp\5089124.exe
    "C:\Users\Admin\AppData\Local\Temp\5089124.exe"
    3⤵
    - Suspicious use of SetThreadContext
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious behavior: MapViewOfSection
    - Suspicious use of AdjustPrivilegeToken
    PID:1924
- C:\Windows\SysWOW64\explorer.exe
  "C:\Windows\SysWOW64\explorer.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:2328
- - C:\Windows\SysWOW64\cmd.exe
    /c del "C:\Users\Admin\AppData\Local\Temp\5089124.exe"
    3⤵
    - Deletes itself
    - System Location Discovery: System Language Discovery
    PID:316

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/1228-19-0x0000000004F30000-0x000000000504A000-memory.dmp

Filesize
1.1MB

Download
memory/1924-8-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/1924-25-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/1924-17-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/1924-18-0x0000000000280000-0x0000000000294000-memory.dmp

Filesize
80KB

Download
memory/1924-15-0x0000000000CC0000-0x0000000000FC3000-memory.dmp

Filesize
3.0MB

Download
memory/1924-14-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/1924-12-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/1924-10-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/2328-27-0x0000000000080000-0x00000000000AF000-memory.dmp

Filesize
188KB

Download
memory/2328-26-0x0000000000770000-0x00000000009F1000-memory.dmp

Filesize
2.5MB

Download
memory/2948-5-0x000000007414E000-0x000000007414F000-memory.dmp

Filesize
4KB

Download
memory/2948-7-0x0000000000B40000-0x0000000000BB6000-memory.dmp

Filesize
472KB

Download
memory/2948-6-0x0000000074140000-0x000000007482E000-memory.dmp

Filesize
6.9MB

Download
memory/2948-0-0x000000007414E000-0x000000007414F000-memory.dmp

Filesize
4KB

Download
memory/2948-20-0x0000000074140000-0x000000007482E000-memory.dmp

Filesize
6.9MB

Download
memory/2948-4-0x0000000074140000-0x000000007482E000-memory.dmp

Filesize
6.9MB

Download
memory/2948-3-0x0000000000580000-0x0000000000592000-memory.dmp

Filesize
72KB

Download
memory/2948-2-0x0000000074140000-0x000000007482E000-memory.dmp

Filesize
6.9MB

Download
memory/2948-1-0x0000000000C20000-0x0000000000CBE000-memory.dmp

Filesize
632KB

Download

Analysis

Sharing