formbook | 5bc4574dc91259c37e24e9fafd52c4798d2ac0b04bdce4ea1959b1c4a1bb1be1

General

Target

INQ242190.exe
Size

549KB
MD5

15b1d07b7730263710445acc7d3fe916
SHA1

aeeb575c62225475d3098bcb336bf2da83b4f625
SHA256

5bc4574dc91259c37e24e9fafd52c4798d2ac0b04bdce4ea1959b1c4a1bb1be1
SHA512

8578154a6aad6c557afdb7fdeacb9300da6855dce24be4eb11ecfb98d70f1de5b81ac39867c48388ca033e03c2b5f23bf50d00c7f4498f6e33db4b77294d51ff
SSDEEP

12288:p8yM6xjUjr8M1BwIHtexCLuBQobO7B3YFgx2fhyGvJGI:lM6xjUjrwINATyNdxGVY

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/2216-14-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral1/memory/2216-18-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral1/memory/2964-24-0x00000000000D0000-0x00000000000FF000-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
2248	powershell.exe

Deletes itself 1 IoCs

pid	Process
2684	cmd.exe

Suspicious use of SetThreadContext 3 IoCs

description	pid	Process	procid_target
PID 2256 set thread context of 2216	2256	INQ242190.exe	32
PID 2216 set thread context of 1204	2216	INQ242190.exe	21
PID 2964 set thread context of 1204	2964	raserver.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	INQ242190.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	powershell.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	raserver.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe

Suspicious behavior: EnumeratesProcesses 32 IoCs

pid	Process
2256	INQ242190.exe
2256	INQ242190.exe
2216	INQ242190.exe
2216	INQ242190.exe
2248	powershell.exe
2964	raserver.exe
2964	raserver.exe
2964	raserver.exe
2964	raserver.exe
2964	raserver.exe
2964	raserver.exe
2964	raserver.exe
2964	raserver.exe
2964	raserver.exe
2964	raserver.exe
2964	raserver.exe
2964	raserver.exe
2964	raserver.exe
2964	raserver.exe
2964	raserver.exe
2964	raserver.exe
2964	raserver.exe
2964	raserver.exe
2964	raserver.exe
2964	raserver.exe
2964	raserver.exe
2964	raserver.exe
2964	raserver.exe
2964	raserver.exe
2964	raserver.exe
2964	raserver.exe
2964	raserver.exe

Suspicious behavior: MapViewOfSection 5 IoCs

pid	Process
2216	INQ242190.exe
2216	INQ242190.exe
2216	INQ242190.exe
2964	raserver.exe
2964	raserver.exe

Suspicious use of AdjustPrivilegeToken 4 IoCs

description	pid	Process
Token: SeDebugPrivilege	2256	INQ242190.exe
Token: SeDebugPrivilege	2216	INQ242190.exe
Token: SeDebugPrivilege	2248	powershell.exe
Token: SeDebugPrivilege	2964	raserver.exe

Suspicious use of WriteProcessMemory 19 IoCs

description	pid	Process	procid_target
PID 2256 wrote to memory of 2248	2256	INQ242190.exe	31
PID 2256 wrote to memory of 2248	2256	INQ242190.exe	31
PID 2256 wrote to memory of 2248	2256	INQ242190.exe	31
PID 2256 wrote to memory of 2248	2256	INQ242190.exe	31
PID 2256 wrote to memory of 2216	2256	INQ242190.exe	32
PID 2256 wrote to memory of 2216	2256	INQ242190.exe	32
PID 2256 wrote to memory of 2216	2256	INQ242190.exe	32
PID 2256 wrote to memory of 2216	2256	INQ242190.exe	32
PID 2256 wrote to memory of 2216	2256	INQ242190.exe	32
PID 2256 wrote to memory of 2216	2256	INQ242190.exe	32
PID 2256 wrote to memory of 2216	2256	INQ242190.exe	32
PID 1204 wrote to memory of 2964	1204	Explorer.EXE	34
PID 1204 wrote to memory of 2964	1204	Explorer.EXE	34
PID 1204 wrote to memory of 2964	1204	Explorer.EXE	34
PID 1204 wrote to memory of 2964	1204	Explorer.EXE	34
PID 2964 wrote to memory of 2684	2964	raserver.exe	35
PID 2964 wrote to memory of 2684	2964	raserver.exe	35
PID 2964 wrote to memory of 2684	2964	raserver.exe	35
PID 2964 wrote to memory of 2684	2964	raserver.exe	35

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of WriteProcessMemory
PID:1204
- C:\Users\Admin\AppData\Local\Temp\INQ242190.exe
  "C:\Users\Admin\AppData\Local\Temp\INQ242190.exe"
  2⤵
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:2256
- - 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\INQ242190.exe"
    3⤵
    - Command and Scripting Interpreter: PowerShell
    - System Location Discovery: System Language Discovery
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:2248
- - C:\Users\Admin\AppData\Local\Temp\INQ242190.exe
    "C:\Users\Admin\AppData\Local\Temp\INQ242190.exe"
    3⤵
    - Suspicious use of SetThreadContext
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious behavior: MapViewOfSection
    - Suspicious use of AdjustPrivilegeToken
    PID:2216
- C:\Windows\SysWOW64\raserver.exe
  "C:\Windows\SysWOW64\raserver.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:2964
- - C:\Windows\SysWOW64\cmd.exe
    /c del "C:\Users\Admin\AppData\Local\Temp\INQ242190.exe"
    3⤵
    - Deletes itself
    - System Location Discovery: System Language Discovery
    PID:2684

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/1204-20-0x0000000006AA0000-0x0000000006BA7000-memory.dmp

Filesize
1.0MB

Download
memory/1204-27-0x0000000006AA0000-0x0000000006BA7000-memory.dmp

Filesize
1.0MB

Download
memory/2216-18-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/2216-12-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2216-19-0x00000000001D0000-0x00000000001E4000-memory.dmp

Filesize
80KB

Download
memory/2216-16-0x00000000009E0000-0x0000000000CE3000-memory.dmp

Filesize
3.0MB

Download
memory/2216-8-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/2216-10-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/2216-14-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/2256-7-0x0000000005070000-0x00000000050E6000-memory.dmp

Filesize
472KB

Download
memory/2256-3-0x0000000004B10000-0x0000000004BA4000-memory.dmp

Filesize
592KB

Download
memory/2256-6-0x0000000074A70000-0x000000007515E000-memory.dmp

Filesize
6.9MB

Download
memory/2256-15-0x0000000074A70000-0x000000007515E000-memory.dmp

Filesize
6.9MB

Download
memory/2256-5-0x0000000074A7E000-0x0000000074A7F000-memory.dmp

Filesize
4KB

Download
memory/2256-4-0x00000000002A0000-0x00000000002B0000-memory.dmp

Filesize
64KB

Download
memory/2256-0-0x0000000074A7E000-0x0000000074A7F000-memory.dmp

Filesize
4KB

Download
memory/2256-2-0x0000000074A70000-0x000000007515E000-memory.dmp

Filesize
6.9MB

Download
memory/2256-1-0x0000000001260000-0x00000000012F0000-memory.dmp

Filesize
576KB

Download
memory/2964-23-0x0000000000870000-0x000000000088C000-memory.dmp

Filesize
112KB

Download
memory/2964-24-0x00000000000D0000-0x00000000000FF000-memory.dmp

Filesize
188KB

Download

Analysis

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