formbook | dcb17b967ace504da2bf735bff143773f4ea2f8c88f1414176e50e25330d32d5

Analysis

max time kernel
148s
max time network
144s
platform
windows10-2004_x64
resource
win10v2004-20250314-en
resource tags

arch:x64arch:x86image:win10v2004-20250314-enlocale:en-usos:windows10-2004-x64system
submitted
25/03/2025, 20:08

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General

Target

PL147_1400277334_2025032512033713_213128_00011..exe
Size

1.0MB
MD5

e33bfd34504c633900fdf1ce3155864d
SHA1

b31f64301f2e6804d29693732c05fef887646aca
SHA256

be65438fc6249ed80d90b22c1a4308d85c77ca1c0c4bd5376baa4622d4c1f161
SHA512

ec0632806bd6127ee9a19a1a35432b9d38bc4c68bb7e9d8a3ae7e5cad0da51e27d6e4e07091a432ca4ff3a79dc0c5c3f6a446c2c7a7e08ab2c9096ad6475c48e
SSDEEP

24576:Pu6J33O0c+JY5UZ+XC0kGso6FaiSceWSo4rlgaG+WY:5u0c++OCvkGs9FaiSDWSZRmY

Score

10^/10

formbook u021 discovery rat spyware stealer trojan

Malware Config

Extracted

Family

formbook

Version

4.1

Campaign

u021

Decoy

pidersandsparrowsgroup.info

hatgptstrategies.net

anashekwrites.net

uskomaras-gyor.net

s2ega.live

heap-flights-1466962.fyi

ersondigital.shop

omaine-videlot.net

mbeddedcopilot.xyz

tp-jos178-a2.online

estaking888.xyz

uantumnovamind.pro

ugmentedmap.xyz

ucky-win-spin.xyz

bytxop.online

nnovativeworld.cyou

f.delivery

lp.cash

y-marketing-chef.online

illionblocks.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
behavioral2/memory/3372-7-0x0000000000660000-0x000000000068F000-memory.dmp	formbook
behavioral2/memory/3372-11-0x0000000000660000-0x000000000068F000-memory.dmp	formbook
behavioral2/memory/2160-17-0x00000000001D0000-0x00000000001FF000-memory.dmp	formbook

Suspicious use of SetThreadContext 3 IoCs

description	pid	Process	procid_target
PID 3612 set thread context of 3372	3612	PL147_1400277334_2025032512033713_213128_00011..exe	89
PID 3372 set thread context of 3416	3372	svchost.exe	55
PID 2160 set thread context of 3416	2160	netsh.exe	55

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	netsh.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	PL147_1400277334_2025032512033713_213128_00011..exe

Modifies registry class 2 IoCs

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{4336a54d-038b-4685-ab02-99bb52d3fb8b}\Instance\	Explorer.EXE
Key created	\REGISTRY\USER\S-1-5-21-869607583-2483572573-2297019986-1000_Classes\CLSID\{018D5C66-4533-4307-9B53-224DE2ED1FE6}\Instance\	Explorer.EXE

Suspicious behavior: EnumeratesProcesses 62 IoCs

pid	Process
3372	svchost.exe
3372	svchost.exe
3372	svchost.exe
3372	svchost.exe
2160	netsh.exe
2160	netsh.exe
2160	netsh.exe
2160	netsh.exe
2160	netsh.exe
2160	netsh.exe
2160	netsh.exe
2160	netsh.exe
2160	netsh.exe
2160	netsh.exe
2160	netsh.exe
2160	netsh.exe
2160	netsh.exe
2160	netsh.exe
2160	netsh.exe
2160	netsh.exe
2160	netsh.exe
2160	netsh.exe
2160	netsh.exe
2160	netsh.exe
2160	netsh.exe
2160	netsh.exe
2160	netsh.exe
2160	netsh.exe
2160	netsh.exe
2160	netsh.exe
2160	netsh.exe
2160	netsh.exe
2160	netsh.exe
2160	netsh.exe
2160	netsh.exe
2160	netsh.exe
2160	netsh.exe
2160	netsh.exe
2160	netsh.exe
2160	netsh.exe
2160	netsh.exe
2160	netsh.exe
2160	netsh.exe
2160	netsh.exe
2160	netsh.exe
2160	netsh.exe
2160	netsh.exe
2160	netsh.exe
2160	netsh.exe
2160	netsh.exe
2160	netsh.exe
2160	netsh.exe
2160	netsh.exe
2160	netsh.exe
2160	netsh.exe
2160	netsh.exe
2160	netsh.exe
2160	netsh.exe
2160	netsh.exe
2160	netsh.exe
2160	netsh.exe
2160	netsh.exe

Suspicious behavior: MapViewOfSection 7 IoCs

pid	Process
3612	PL147_1400277334_2025032512033713_213128_00011..exe
3612	PL147_1400277334_2025032512033713_213128_00011..exe
3372	svchost.exe
3372	svchost.exe
3372	svchost.exe
2160	netsh.exe
2160	netsh.exe

Suspicious use of AdjustPrivilegeToken 10 IoCs

description	pid	Process
Token: SeDebugPrivilege	3372	svchost.exe
Token: SeDebugPrivilege	2160	netsh.exe
Token: SeShutdownPrivilege	3416	Explorer.EXE
Token: SeCreatePagefilePrivilege	3416	Explorer.EXE
Token: SeShutdownPrivilege	3416	Explorer.EXE
Token: SeCreatePagefilePrivilege	3416	Explorer.EXE
Token: SeShutdownPrivilege	3416	Explorer.EXE
Token: SeCreatePagefilePrivilege	3416	Explorer.EXE
Token: SeShutdownPrivilege	3416	Explorer.EXE
Token: SeCreatePagefilePrivilege	3416	Explorer.EXE

Suspicious use of FindShellTrayWindow 2 IoCs

pid	Process
3612	PL147_1400277334_2025032512033713_213128_00011..exe
3612	PL147_1400277334_2025032512033713_213128_00011..exe

Suspicious use of SendNotifyMessage 2 IoCs

pid	Process
3612	PL147_1400277334_2025032512033713_213128_00011..exe
3612	PL147_1400277334_2025032512033713_213128_00011..exe

Suspicious use of UnmapMainImage 1 IoCs

pid	Process
3416	Explorer.EXE

Suspicious use of WriteProcessMemory 10 IoCs

description	pid	Process	procid_target
PID 3612 wrote to memory of 3372	3612	PL147_1400277334_2025032512033713_213128_00011..exe	89
PID 3612 wrote to memory of 3372	3612	PL147_1400277334_2025032512033713_213128_00011..exe	89
PID 3612 wrote to memory of 3372	3612	PL147_1400277334_2025032512033713_213128_00011..exe	89
PID 3612 wrote to memory of 3372	3612	PL147_1400277334_2025032512033713_213128_00011..exe	89
PID 3416 wrote to memory of 2160	3416	Explorer.EXE	90
PID 3416 wrote to memory of 2160	3416	Explorer.EXE	90
PID 3416 wrote to memory of 2160	3416	Explorer.EXE	90
PID 2160 wrote to memory of 4316	2160	netsh.exe	96
PID 2160 wrote to memory of 4316	2160	netsh.exe	96
PID 2160 wrote to memory of 4316	2160	netsh.exe	96

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Modifies registry class
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of UnmapMainImage
- Suspicious use of WriteProcessMemory
PID:3416
- C:\Users\Admin\AppData\Local\Temp\PL147_1400277334_2025032512033713_213128_00011..exe
  "C:\Users\Admin\AppData\Local\Temp\PL147_1400277334_2025032512033713_213128_00011..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:3612
- - C:\Windows\SysWOW64\svchost.exe
    "C:\Users\Admin\AppData\Local\Temp\PL147_1400277334_2025032512033713_213128_00011..exe"
    3⤵
    - Suspicious use of SetThreadContext
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious behavior: MapViewOfSection
    - Suspicious use of AdjustPrivilegeToken
    PID:3372
- C:\Windows\SysWOW64\netsh.exe
  "C:\Windows\SysWOW64\netsh.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:2160
- - C:\Windows\SysWOW64\cmd.exe
    /c del "C:\Windows\SysWOW64\svchost.exe"
    3⤵
    - System Location Discovery: System Language Discovery
    PID:4316

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

memory/2160-14-0x0000000001560000-0x000000000157E000-memory.dmp

Filesize
120KB

Download
memory/2160-17-0x00000000001D0000-0x00000000001FF000-memory.dmp

Filesize
188KB

Download
memory/2160-16-0x0000000001560000-0x000000000157E000-memory.dmp

Filesize
120KB

Download
memory/3372-7-0x0000000000660000-0x000000000068F000-memory.dmp

Filesize
188KB

Download
memory/3372-10-0x0000000001200000-0x000000000154A000-memory.dmp

Filesize
3.3MB

Download
memory/3372-12-0x0000000000D90000-0x0000000000DA4000-memory.dmp

Filesize
80KB

Download
memory/3372-11-0x0000000000660000-0x000000000068F000-memory.dmp

Filesize
188KB

Download
memory/3416-13-0x0000000002550000-0x000000000264A000-memory.dmp

Filesize
1000KB

Download
memory/3416-18-0x0000000002550000-0x000000000264A000-memory.dmp

Filesize
1000KB

Download
memory/3416-22-0x00000000081B0000-0x00000000082F9000-memory.dmp

Filesize
1.3MB

Download
memory/3416-23-0x00000000081B0000-0x00000000082F9000-memory.dmp

Filesize
1.3MB

Download
memory/3416-25-0x00000000081B0000-0x00000000082F9000-memory.dmp

Filesize
1.3MB

Download
memory/3612-6-0x0000000000F60000-0x0000000001360000-memory.dmp

Filesize
4.0MB

Download