formbook | c419a459e0f21efa0a4df35367d1607d5999dbc28a325b9da61ed3f5f9b9ba3a

General

Target

rScan_Rev20220731_POOC88SU7782743882874_JPEG.exe
Size

1.1MB
MD5

e2fec48293a8580213ee6fa61b37b776
SHA1

00751d38864cfe890150b2e4d1bcd05c09bc80bc
SHA256

c419a459e0f21efa0a4df35367d1607d5999dbc28a325b9da61ed3f5f9b9ba3a
SHA512

6c580cbf6c8c9ae57f9ec67af61fed731de25c5a56a1668949b722e79a31f83e89f8a5d5deab5939cba156631842fb5134fbb722d8b1c6ca6d94f0a7e9951a55
SSDEEP

24576:uRmJkcoQricOIQxiZY1iaCCudvbmcRXrAd9FTlHDKJ:7JZoQrbTFZY1iaCvpmcprAd9FTtM

Score

10^/10

formbook a38m discovery rat spyware stealer trojan

Malware Config

Extracted

Family

formbook

Version

4.1

Campaign

a38m

Decoy

rtfosters.net

ental-implants-97548.bond

raphic-design-degree-15820.bond

ompraninjas.shop

indmyusedcar.today

rumptraumasupport.net

uozwear.xyz

etron.xyz

dultlivebroadcast09.today

ypegen.net

arehouse-inventory-54057.bond

27961.pizza

ortable-ai.xyz

pioxc.xyz

nline-advertising-76059.bond

rendyshack.store

pa-services88.life

aftarpragmatic218gacor.online

yb1054.shop

8x189.xyz

Signatures

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

Formbook payload 3 IoCs

rat

resource	yara_rule
behavioral1/memory/2368-3-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral1/memory/2368-6-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral1/memory/2444-13-0x00000000000A0000-0x00000000000CF000-memory.dmp	formbook

Suspicious use of SetThreadContext 3 IoCs

description	pid	Process	procid_target
PID 2104 set thread context of 2368	2104	rScan_Rev20220731_POOC88SU7782743882874_JPEG.exe	30
PID 2368 set thread context of 1204	2368	svchost.exe	21
PID 2444 set thread context of 1204	2444	rundll32.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 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	rScan_Rev20220731_POOC88SU7782743882874_JPEG.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	rundll32.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe

Suspicious behavior: EnumeratesProcesses 31 IoCs

pid	Process
2368	svchost.exe
2368	svchost.exe
2444	rundll32.exe
2444	rundll32.exe
2444	rundll32.exe
2444	rundll32.exe
2444	rundll32.exe
2444	rundll32.exe
2444	rundll32.exe
2444	rundll32.exe
2444	rundll32.exe
2444	rundll32.exe
2444	rundll32.exe
2444	rundll32.exe
2444	rundll32.exe
2444	rundll32.exe
2444	rundll32.exe
2444	rundll32.exe
2444	rundll32.exe
2444	rundll32.exe
2444	rundll32.exe
2444	rundll32.exe
2444	rundll32.exe
2444	rundll32.exe
2444	rundll32.exe
2444	rundll32.exe
2444	rundll32.exe
2444	rundll32.exe
2444	rundll32.exe
2444	rundll32.exe
2444	rundll32.exe

Suspicious behavior: MapViewOfSection 6 IoCs

pid	Process
2104	rScan_Rev20220731_POOC88SU7782743882874_JPEG.exe
2368	svchost.exe
2368	svchost.exe
2368	svchost.exe
2444	rundll32.exe
2444	rundll32.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	2368	svchost.exe
Token: SeDebugPrivilege	2444	rundll32.exe

Suspicious use of FindShellTrayWindow 6 IoCs

pid	Process
2104	rScan_Rev20220731_POOC88SU7782743882874_JPEG.exe
2104	rScan_Rev20220731_POOC88SU7782743882874_JPEG.exe
1204	Explorer.EXE
1204	Explorer.EXE
1204	Explorer.EXE
1204	Explorer.EXE

Suspicious use of SendNotifyMessage 4 IoCs

pid	Process
2104	rScan_Rev20220731_POOC88SU7782743882874_JPEG.exe
2104	rScan_Rev20220731_POOC88SU7782743882874_JPEG.exe
1204	Explorer.EXE
1204	Explorer.EXE

Suspicious use of WriteProcessMemory 16 IoCs

description	pid	Process	procid_target
PID 2104 wrote to memory of 2368	2104	rScan_Rev20220731_POOC88SU7782743882874_JPEG.exe	30
PID 2104 wrote to memory of 2368	2104	rScan_Rev20220731_POOC88SU7782743882874_JPEG.exe	30
PID 2104 wrote to memory of 2368	2104	rScan_Rev20220731_POOC88SU7782743882874_JPEG.exe	30
PID 2104 wrote to memory of 2368	2104	rScan_Rev20220731_POOC88SU7782743882874_JPEG.exe	30
PID 2104 wrote to memory of 2368	2104	rScan_Rev20220731_POOC88SU7782743882874_JPEG.exe	30
PID 1204 wrote to memory of 2444	1204	Explorer.EXE	31
PID 1204 wrote to memory of 2444	1204	Explorer.EXE	31
PID 1204 wrote to memory of 2444	1204	Explorer.EXE	31
PID 1204 wrote to memory of 2444	1204	Explorer.EXE	31
PID 1204 wrote to memory of 2444	1204	Explorer.EXE	31
PID 1204 wrote to memory of 2444	1204	Explorer.EXE	31
PID 1204 wrote to memory of 2444	1204	Explorer.EXE	31
PID 2444 wrote to memory of 2892	2444	rundll32.exe	33
PID 2444 wrote to memory of 2892	2444	rundll32.exe	33
PID 2444 wrote to memory of 2892	2444	rundll32.exe	33
PID 2444 wrote to memory of 2892	2444	rundll32.exe	33

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
- Suspicious use of WriteProcessMemory
PID:1204
- C:\Users\Admin\AppData\Local\Temp\rScan_Rev20220731_POOC88SU7782743882874_JPEG.exe
  "C:\Users\Admin\AppData\Local\Temp\rScan_Rev20220731_POOC88SU7782743882874_JPEG.exe"
  2⤵
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: MapViewOfSection
  - Suspicious use of FindShellTrayWindow
  - Suspicious use of SendNotifyMessage
  - Suspicious use of WriteProcessMemory
  PID:2104
- - C:\Windows\SysWOW64\svchost.exe
    "C:\Users\Admin\AppData\Local\Temp\rScan_Rev20220731_POOC88SU7782743882874_JPEG.exe"
    3⤵
    - Suspicious use of SetThreadContext
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious behavior: MapViewOfSection
    - Suspicious use of AdjustPrivilegeToken
    PID:2368
- C:\Windows\SysWOW64\rundll32.exe
  "C:\Windows\SysWOW64\rundll32.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:2444
- - C:\Windows\SysWOW64\cmd.exe
    /c del "C:\Windows\SysWOW64\svchost.exe"
    3⤵
    - System Location Discovery: System Language Discovery
    PID:2892

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

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/1204-14-0x0000000004EA0000-0x0000000004F80000-memory.dmp

Filesize
896KB

Download
memory/1204-8-0x0000000004EA0000-0x0000000004F80000-memory.dmp

Filesize
896KB

Download
memory/1204-23-0x0000000007000000-0x0000000007155000-memory.dmp

Filesize
1.3MB

Download
memory/1204-21-0x0000000007000000-0x0000000007155000-memory.dmp

Filesize
1.3MB

Download
memory/1204-20-0x0000000007000000-0x0000000007155000-memory.dmp

Filesize
1.3MB

Download
memory/2104-2-0x0000000002F00000-0x0000000003100000-memory.dmp

Filesize
2.0MB

Download
memory/2368-3-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/2368-4-0x0000000000700000-0x0000000000A03000-memory.dmp

Filesize
3.0MB

Download
memory/2368-7-0x0000000000380000-0x0000000000394000-memory.dmp

Filesize
80KB

Download
memory/2368-6-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/2444-9-0x0000000000080000-0x000000000008E000-memory.dmp

Filesize
56KB

Download
memory/2444-13-0x00000000000A0000-0x00000000000CF000-memory.dmp

Filesize
188KB

Download
memory/2444-12-0x0000000000080000-0x000000000008E000-memory.dmp

Filesize
56KB

Download
memory/2444-10-0x0000000000080000-0x000000000008E000-memory.dmp

Filesize
56KB

Download

Analysis

Sharing