formbook | c419a459e0f21efa0a4df35367d1607d5999dbc28a325b9da61ed3f5f9b9ba3a

Analysis

max time kernel
146s
max time network
145s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
24-01-2025 05:50

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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 4 IoCs

rat

resource	yara_rule
behavioral2/memory/2692-3-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral2/memory/2692-6-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral2/memory/2692-10-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral2/memory/344-17-0x00000000004B0000-0x00000000004DF000-memory.dmp	formbook

AutoIT Executable 1 IoCs

AutoIT scripts compiled to PE executables.

resource	yara_rule
behavioral2/memory/2160-2-0x0000000004300000-0x0000000004700000-memory.dmp	autoit_exe

Suspicious use of SetThreadContext 4 IoCs

description	pid	Process	procid_target
PID 2160 set thread context of 2692	2160	c419a459e0f21efa0a4df35367d1607d5999dbc28a325b9da61ed3f5f9b9ba3a.exe	82
PID 2692 set thread context of 3396	2692	svchost.exe	56
PID 2692 set thread context of 3396	2692	svchost.exe	56
PID 344 set thread context of 3396	344	cmstp.exe	56

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	c419a459e0f21efa0a4df35367d1607d5999dbc28a325b9da61ed3f5f9b9ba3a.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.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 60 IoCs

pid	Process
2692	svchost.exe
2692	svchost.exe
2692	svchost.exe
2692	svchost.exe
2692	svchost.exe
2692	svchost.exe
344	cmstp.exe
344	cmstp.exe
344	cmstp.exe
344	cmstp.exe
344	cmstp.exe
344	cmstp.exe
344	cmstp.exe
344	cmstp.exe
344	cmstp.exe
344	cmstp.exe
344	cmstp.exe
344	cmstp.exe
344	cmstp.exe
344	cmstp.exe
344	cmstp.exe
344	cmstp.exe
344	cmstp.exe
344	cmstp.exe
344	cmstp.exe
344	cmstp.exe
344	cmstp.exe
344	cmstp.exe
344	cmstp.exe
344	cmstp.exe
344	cmstp.exe
344	cmstp.exe
344	cmstp.exe
344	cmstp.exe
344	cmstp.exe
344	cmstp.exe
344	cmstp.exe
344	cmstp.exe
344	cmstp.exe
344	cmstp.exe
344	cmstp.exe
344	cmstp.exe
344	cmstp.exe
344	cmstp.exe
344	cmstp.exe
344	cmstp.exe
344	cmstp.exe
344	cmstp.exe
344	cmstp.exe
344	cmstp.exe
344	cmstp.exe
344	cmstp.exe
344	cmstp.exe
344	cmstp.exe
344	cmstp.exe
344	cmstp.exe
344	cmstp.exe
344	cmstp.exe
344	cmstp.exe
344	cmstp.exe

Suspicious behavior: MapViewOfSection 7 IoCs

pid	Process
2160	c419a459e0f21efa0a4df35367d1607d5999dbc28a325b9da61ed3f5f9b9ba3a.exe
2692	svchost.exe
2692	svchost.exe
2692	svchost.exe
2692	svchost.exe
344	cmstp.exe
344	cmstp.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	2692	svchost.exe
Token: SeDebugPrivilege	344	cmstp.exe

Suspicious use of FindShellTrayWindow 2 IoCs

pid	Process
2160	c419a459e0f21efa0a4df35367d1607d5999dbc28a325b9da61ed3f5f9b9ba3a.exe
2160	c419a459e0f21efa0a4df35367d1607d5999dbc28a325b9da61ed3f5f9b9ba3a.exe

Suspicious use of SendNotifyMessage 2 IoCs

pid	Process
2160	c419a459e0f21efa0a4df35367d1607d5999dbc28a325b9da61ed3f5f9b9ba3a.exe
2160	c419a459e0f21efa0a4df35367d1607d5999dbc28a325b9da61ed3f5f9b9ba3a.exe

Suspicious use of WriteProcessMemory 10 IoCs

description	pid	Process	procid_target
PID 2160 wrote to memory of 2692	2160	c419a459e0f21efa0a4df35367d1607d5999dbc28a325b9da61ed3f5f9b9ba3a.exe	82
PID 2160 wrote to memory of 2692	2160	c419a459e0f21efa0a4df35367d1607d5999dbc28a325b9da61ed3f5f9b9ba3a.exe	82
PID 2160 wrote to memory of 2692	2160	c419a459e0f21efa0a4df35367d1607d5999dbc28a325b9da61ed3f5f9b9ba3a.exe	82
PID 2160 wrote to memory of 2692	2160	c419a459e0f21efa0a4df35367d1607d5999dbc28a325b9da61ed3f5f9b9ba3a.exe	82
PID 2692 wrote to memory of 344	2692	svchost.exe	88
PID 2692 wrote to memory of 344	2692	svchost.exe	88
PID 2692 wrote to memory of 344	2692	svchost.exe	88
PID 344 wrote to memory of 5032	344	cmstp.exe	89
PID 344 wrote to memory of 5032	344	cmstp.exe	89
PID 344 wrote to memory of 5032	344	cmstp.exe	89

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
PID:3396
- 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:2160
- - C:\Windows\SysWOW64\svchost.exe
    "C:\Users\Admin\AppData\Local\Temp\c419a459e0f21efa0a4df35367d1607d5999dbc28a325b9da61ed3f5f9b9ba3a.exe"
    3⤵
    - 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:2692
  - - C:\Windows\SysWOW64\cmstp.exe
      "C:\Windows\SysWOW64\cmstp.exe"
      4⤵
      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:344
    - - C:\Windows\SysWOW64\cmd.exe
        
        /c del "C:\Windows\SysWOW64\svchost.exe"
        5⤵
        System Location Discovery: System Language Discovery
        
        PID:5032

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/344-15-0x0000000000E50000-0x0000000000E66000-memory.dmp

Filesize
88KB

Download
memory/344-17-0x00000000004B0000-0x00000000004DF000-memory.dmp

Filesize
188KB

Download
memory/344-14-0x0000000000E50000-0x0000000000E66000-memory.dmp

Filesize
88KB

Download
memory/2160-2-0x0000000004300000-0x0000000004700000-memory.dmp

Filesize
4.0MB

Download
memory/2692-3-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/2692-4-0x0000000001800000-0x0000000001B4A000-memory.dmp

Filesize
3.3MB

Download
memory/2692-7-0x0000000001E00000-0x0000000001E14000-memory.dmp

Filesize
80KB

Download
memory/2692-6-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/2692-11-0x0000000003780000-0x0000000003794000-memory.dmp

Filesize
80KB

Download
memory/2692-10-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/3396-12-0x0000000002750000-0x00000000028CB000-memory.dmp

Filesize
1.5MB

Download
memory/3396-13-0x0000000008410000-0x00000000085BC000-memory.dmp

Filesize
1.7MB

Download
memory/3396-16-0x0000000002750000-0x00000000028CB000-memory.dmp

Filesize
1.5MB

Download
memory/3396-8-0x0000000008410000-0x00000000085BC000-memory.dmp

Filesize
1.7MB

Download
memory/3396-20-0x0000000007C60000-0x0000000007D0C000-memory.dmp

Filesize
688KB

Download
memory/3396-21-0x0000000007C60000-0x0000000007D0C000-memory.dmp

Filesize
688KB

Download
memory/3396-23-0x0000000007C60000-0x0000000007D0C000-memory.dmp

Filesize
688KB

Download