formbook | c419a459e0f21efa0a4df35367d1607d5999dbc28a325b9da61ed3f5f9b9ba3a

General

Target

c419a459e0f21efa0a4df35367d1607d5999dbc28a325b9da61ed3f5f9b9ba3a.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/2008-3-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral1/memory/2008-6-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral1/memory/2432-12-0x0000000000090000-0x00000000000BF000-memory.dmp	formbook

Suspicious use of SetThreadContext 3 IoCs

description	pid	Process	procid_target
PID 3032 set thread context of 2008	3032	c419a459e0f21efa0a4df35367d1607d5999dbc28a325b9da61ed3f5f9b9ba3a.exe	31
PID 2008 set thread context of 1388	2008	svchost.exe	21
PID 2432 set thread context of 1388	2432	cmstp.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	c419a459e0f21efa0a4df35367d1607d5999dbc28a325b9da61ed3f5f9b9ba3a.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmstp.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe

Suspicious behavior: EnumeratesProcesses 31 IoCs

pid	Process
2008	svchost.exe
2008	svchost.exe
2432	cmstp.exe
2432	cmstp.exe
2432	cmstp.exe
2432	cmstp.exe
2432	cmstp.exe
2432	cmstp.exe
2432	cmstp.exe
2432	cmstp.exe
2432	cmstp.exe
2432	cmstp.exe
2432	cmstp.exe
2432	cmstp.exe
2432	cmstp.exe
2432	cmstp.exe
2432	cmstp.exe
2432	cmstp.exe
2432	cmstp.exe
2432	cmstp.exe
2432	cmstp.exe
2432	cmstp.exe
2432	cmstp.exe
2432	cmstp.exe
2432	cmstp.exe
2432	cmstp.exe
2432	cmstp.exe
2432	cmstp.exe
2432	cmstp.exe
2432	cmstp.exe
2432	cmstp.exe

Suspicious behavior: MapViewOfSection 6 IoCs

pid	Process
3032	c419a459e0f21efa0a4df35367d1607d5999dbc28a325b9da61ed3f5f9b9ba3a.exe
2008	svchost.exe
2008	svchost.exe
2008	svchost.exe
2432	cmstp.exe
2432	cmstp.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	2008	svchost.exe
Token: SeDebugPrivilege	2432	cmstp.exe

Suspicious use of FindShellTrayWindow 6 IoCs

pid	Process
3032	c419a459e0f21efa0a4df35367d1607d5999dbc28a325b9da61ed3f5f9b9ba3a.exe
3032	c419a459e0f21efa0a4df35367d1607d5999dbc28a325b9da61ed3f5f9b9ba3a.exe
1388	Explorer.EXE
1388	Explorer.EXE
1388	Explorer.EXE
1388	Explorer.EXE

Suspicious use of SendNotifyMessage 4 IoCs

pid	Process
3032	c419a459e0f21efa0a4df35367d1607d5999dbc28a325b9da61ed3f5f9b9ba3a.exe
3032	c419a459e0f21efa0a4df35367d1607d5999dbc28a325b9da61ed3f5f9b9ba3a.exe
1388	Explorer.EXE
1388	Explorer.EXE

Suspicious use of WriteProcessMemory 16 IoCs

description	pid	Process	procid_target
PID 3032 wrote to memory of 2008	3032	c419a459e0f21efa0a4df35367d1607d5999dbc28a325b9da61ed3f5f9b9ba3a.exe	31
PID 3032 wrote to memory of 2008	3032	c419a459e0f21efa0a4df35367d1607d5999dbc28a325b9da61ed3f5f9b9ba3a.exe	31
PID 3032 wrote to memory of 2008	3032	c419a459e0f21efa0a4df35367d1607d5999dbc28a325b9da61ed3f5f9b9ba3a.exe	31
PID 3032 wrote to memory of 2008	3032	c419a459e0f21efa0a4df35367d1607d5999dbc28a325b9da61ed3f5f9b9ba3a.exe	31
PID 3032 wrote to memory of 2008	3032	c419a459e0f21efa0a4df35367d1607d5999dbc28a325b9da61ed3f5f9b9ba3a.exe	31
PID 1388 wrote to memory of 2432	1388	Explorer.EXE	33
PID 1388 wrote to memory of 2432	1388	Explorer.EXE	33
PID 1388 wrote to memory of 2432	1388	Explorer.EXE	33
PID 1388 wrote to memory of 2432	1388	Explorer.EXE	33
PID 1388 wrote to memory of 2432	1388	Explorer.EXE	33
PID 1388 wrote to memory of 2432	1388	Explorer.EXE	33
PID 1388 wrote to memory of 2432	1388	Explorer.EXE	33
PID 2432 wrote to memory of 2880	2432	cmstp.exe	34
PID 2432 wrote to memory of 2880	2432	cmstp.exe	34
PID 2432 wrote to memory of 2880	2432	cmstp.exe	34
PID 2432 wrote to memory of 2880	2432	cmstp.exe	34

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
- Suspicious use of WriteProcessMemory
PID:1388
- C:\Users\Admin\AppData\Local\Temp\c419a459e0f21efa0a4df35367d1607d5999dbc28a325b9da61ed3f5f9b9ba3a.exe
  "C:\Users\Admin\AppData\Local\Temp\c419a459e0f21efa0a4df35367d1607d5999dbc28a325b9da61ed3f5f9b9ba3a.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:3032
- - C:\Windows\SysWOW64\svchost.exe
    "C:\Users\Admin\AppData\Local\Temp\c419a459e0f21efa0a4df35367d1607d5999dbc28a325b9da61ed3f5f9b9ba3a.exe"
    3⤵
    - Suspicious use of SetThreadContext
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious behavior: MapViewOfSection
    - Suspicious use of AdjustPrivilegeToken
    PID:2008
- C:\Windows\SysWOW64\autochk.exe
  "C:\Windows\SysWOW64\autochk.exe"
  2⤵
  PID:2200
- C:\Windows\SysWOW64\cmstp.exe
  "C:\Windows\SysWOW64\cmstp.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:2432
- - C:\Windows\SysWOW64\cmd.exe
    /c del "C:\Windows\SysWOW64\svchost.exe"
    3⤵
    - System Location Discovery: System Language Discovery
    PID:2880

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

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Downloads

memory/1388-9-0x0000000006EE0000-0x000000000704D000-memory.dmp

Filesize
1.4MB

Download
memory/1388-22-0x00000000070D0000-0x0000000007222000-memory.dmp

Filesize
1.3MB

Download
memory/1388-20-0x00000000070D0000-0x0000000007222000-memory.dmp

Filesize
1.3MB

Download
memory/1388-19-0x00000000070D0000-0x0000000007222000-memory.dmp

Filesize
1.3MB

Download
memory/1388-13-0x0000000006EE0000-0x000000000704D000-memory.dmp

Filesize
1.4MB

Download
memory/1388-8-0x0000000003720000-0x0000000003820000-memory.dmp

Filesize
1024KB

Download
memory/2008-7-0x0000000000180000-0x0000000000194000-memory.dmp

Filesize
80KB

Download
memory/2008-6-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/2008-4-0x00000000008D0000-0x0000000000BD3000-memory.dmp

Filesize
3.0MB

Download
memory/2008-3-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/2432-10-0x0000000000130000-0x0000000000148000-memory.dmp

Filesize
96KB

Download
memory/2432-11-0x0000000000130000-0x0000000000148000-memory.dmp

Filesize
96KB

Download
memory/2432-12-0x0000000000090000-0x00000000000BF000-memory.dmp

Filesize
188KB

Download
memory/3032-2-0x0000000002F10000-0x0000000003110000-memory.dmp

Filesize
2.0MB

Download

Analysis

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