formbook | c419a459e0f21efa0a4df35367d1607d5999dbc28a325b9da61ed3f5f9b9ba3a

Resubmissions

24/01/2025, 05:45

250124-gf1gzssqct 10

24/01/2025, 05:31

250124-f7qw7atman 10

Analysis

max time kernel
149s
max time network
143s
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, 05:31

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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/4880-3-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral2/memory/4880-6-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral2/memory/4880-10-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral2/memory/4080-17-0x0000000000550000-0x000000000057F000-memory.dmp	formbook

AutoIT Executable 1 IoCs

AutoIT scripts compiled to PE executables.

resource	yara_rule
behavioral2/memory/2056-2-0x0000000003F30000-0x0000000004330000-memory.dmp	autoit_exe

Suspicious use of SetThreadContext 4 IoCs

description	pid	Process	procid_target
PID 2056 set thread context of 4880	2056	c419a459e0f21efa0a4df35367d1607d5999dbc28a325b9da61ed3f5f9b9ba3a.exe	82
PID 4880 set thread context of 3360	4880	svchost.exe	56
PID 4880 set thread context of 3360	4880	svchost.exe	56
PID 4080 set thread context of 3360	4080	cmd.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 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	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe

Suspicious behavior: EnumeratesProcesses 62 IoCs

pid	Process
4880	svchost.exe
4880	svchost.exe
4880	svchost.exe
4880	svchost.exe
4880	svchost.exe
4880	svchost.exe
4080	cmd.exe
4080	cmd.exe
4080	cmd.exe
4080	cmd.exe
4080	cmd.exe
4080	cmd.exe
4080	cmd.exe
4080	cmd.exe
4080	cmd.exe
4080	cmd.exe
4080	cmd.exe
4080	cmd.exe
4080	cmd.exe
4080	cmd.exe
4080	cmd.exe
4080	cmd.exe
4080	cmd.exe
4080	cmd.exe
4080	cmd.exe
4080	cmd.exe
4080	cmd.exe
4080	cmd.exe
4080	cmd.exe
4080	cmd.exe
4080	cmd.exe
4080	cmd.exe
4080	cmd.exe
4080	cmd.exe
4080	cmd.exe
4080	cmd.exe
4080	cmd.exe
4080	cmd.exe
4080	cmd.exe
4080	cmd.exe
4080	cmd.exe
4080	cmd.exe
4080	cmd.exe
4080	cmd.exe
4080	cmd.exe
4080	cmd.exe
4080	cmd.exe
4080	cmd.exe
4080	cmd.exe
4080	cmd.exe
4080	cmd.exe
4080	cmd.exe
4080	cmd.exe
4080	cmd.exe
4080	cmd.exe
4080	cmd.exe
4080	cmd.exe
4080	cmd.exe
4080	cmd.exe
4080	cmd.exe
4080	cmd.exe
4080	cmd.exe

Suspicious behavior: MapViewOfSection 7 IoCs

pid	Process
2056	c419a459e0f21efa0a4df35367d1607d5999dbc28a325b9da61ed3f5f9b9ba3a.exe
4880	svchost.exe
4880	svchost.exe
4880	svchost.exe
4880	svchost.exe
4080	cmd.exe
4080	cmd.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	4880	svchost.exe
Token: SeDebugPrivilege	4080	cmd.exe

Suspicious use of FindShellTrayWindow 2 IoCs

pid	Process
2056	c419a459e0f21efa0a4df35367d1607d5999dbc28a325b9da61ed3f5f9b9ba3a.exe
2056	c419a459e0f21efa0a4df35367d1607d5999dbc28a325b9da61ed3f5f9b9ba3a.exe

Suspicious use of SendNotifyMessage 2 IoCs

pid	Process
2056	c419a459e0f21efa0a4df35367d1607d5999dbc28a325b9da61ed3f5f9b9ba3a.exe
2056	c419a459e0f21efa0a4df35367d1607d5999dbc28a325b9da61ed3f5f9b9ba3a.exe

Suspicious use of WriteProcessMemory 10 IoCs

description	pid	Process	procid_target
PID 2056 wrote to memory of 4880	2056	c419a459e0f21efa0a4df35367d1607d5999dbc28a325b9da61ed3f5f9b9ba3a.exe	82
PID 2056 wrote to memory of 4880	2056	c419a459e0f21efa0a4df35367d1607d5999dbc28a325b9da61ed3f5f9b9ba3a.exe	82
PID 2056 wrote to memory of 4880	2056	c419a459e0f21efa0a4df35367d1607d5999dbc28a325b9da61ed3f5f9b9ba3a.exe	82
PID 2056 wrote to memory of 4880	2056	c419a459e0f21efa0a4df35367d1607d5999dbc28a325b9da61ed3f5f9b9ba3a.exe	82
PID 3360 wrote to memory of 4080	3360	Explorer.EXE	85
PID 3360 wrote to memory of 4080	3360	Explorer.EXE	85
PID 3360 wrote to memory of 4080	3360	Explorer.EXE	85
PID 4080 wrote to memory of 2904	4080	cmd.exe	88
PID 4080 wrote to memory of 2904	4080	cmd.exe	88
PID 4080 wrote to memory of 2904	4080	cmd.exe	88

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of WriteProcessMemory
PID:3360
- 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:2056
- - 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:4880
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\SysWOW64\cmd.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:4080
- - C:\Windows\SysWOW64\cmd.exe
    /c del "C:\Windows\SysWOW64\svchost.exe"
    3⤵
    - System Location Discovery: System Language Discovery
    PID:2904

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/2056-2-0x0000000003F30000-0x0000000004330000-memory.dmp

Filesize
4.0MB

Download
memory/3360-12-0x0000000002570000-0x000000000262C000-memory.dmp

Filesize
752KB

Download
memory/3360-24-0x0000000008200000-0x0000000008391000-memory.dmp

Filesize
1.6MB

Download
memory/3360-23-0x0000000008200000-0x0000000008391000-memory.dmp

Filesize
1.6MB

Download
memory/3360-21-0x0000000008200000-0x0000000008391000-memory.dmp

Filesize
1.6MB

Download
memory/3360-18-0x0000000002570000-0x000000000262C000-memory.dmp

Filesize
752KB

Download
memory/3360-8-0x0000000007A00000-0x0000000007B73000-memory.dmp

Filesize
1.4MB

Download
memory/3360-13-0x0000000007A00000-0x0000000007B73000-memory.dmp

Filesize
1.4MB

Download
memory/4080-17-0x0000000000550000-0x000000000057F000-memory.dmp

Filesize
188KB

Download
memory/4080-14-0x0000000000B50000-0x0000000000BAA000-memory.dmp

Filesize
360KB

Download
memory/4080-16-0x0000000000B50000-0x0000000000BAA000-memory.dmp

Filesize
360KB

Download
memory/4880-10-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/4880-11-0x0000000000FB0000-0x0000000000FC4000-memory.dmp

Filesize
80KB

Download
memory/4880-7-0x0000000000F40000-0x0000000000F54000-memory.dmp

Filesize
80KB

Download
memory/4880-6-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/4880-4-0x0000000001600000-0x000000000194A000-memory.dmp

Filesize
3.3MB

Download
memory/4880-3-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download