formbook | 1b26a745788fd6ad7ae9ac63cf5bcfd806d66b63d17541ddde02589fe10184b5

Analysis

max time kernel
148s
max time network
139s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
28-08-2024 01:23

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General

Target

1b26a745788fd6ad7ae9ac63cf5bcfd806d66b63d17541ddde02589fe10184b5.exe
Size

1.1MB
MD5

22ed48383ceac6b19b449ef825061559
SHA1

e85c201ff8fdf27407e10479a10e7050b6ffd47b
SHA256

1b26a745788fd6ad7ae9ac63cf5bcfd806d66b63d17541ddde02589fe10184b5
SHA512

c6c7ae5ffff742ef7a6243065e16fcdd1626cef3e7a7878ac1974d01039b5a11b93b78f7a87245ee61d99d3c44da36c8897caab98defdd96e90dafb12f51a820
SSDEEP

24576:sAHnh+eWsN3skA4RV1Hom2KXMmHaqeOHBB1Cu0n2F5:Lh+ZkldoPK8YaqeOHL1f0n4

Score

10^/10

formbook ot96 discovery rat spyware stealer trojan

Malware Config

Extracted

Family

formbook

Version

4.1

Campaign

ot96

Decoy

yclingbear.studio

sxuio.xyz

eon-official-bk-o57v.buzz

teel.management

rusjitu.sbs

ighwald-holdings.info

ummitfinancal.vip

layvalleyconstruction.online

pp-games-efficsecuspon.xyz

ouh.shop

mgltd.services

gshsjwhgsg.fun

eidotijolo.online

yifg.sbs

nline-gaming-ox-mx.xyz

ux-money.info

inergiputraborneo.dev

panish-classes-67016.bond

reightrading.info

23bet.xyz

Signatures

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

Formbook payload 4 IoCs

rat

resource	yara_rule
behavioral2/memory/3932-11-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral2/memory/3932-14-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral2/memory/3932-18-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral2/memory/4532-25-0x0000000000A40000-0x0000000000A6F000-memory.dmp	formbook

Suspicious use of SetThreadContext 4 IoCs

description	pid	Process	procid_target
PID 4928 set thread context of 3932	4928	1b26a745788fd6ad7ae9ac63cf5bcfd806d66b63d17541ddde02589fe10184b5.exe	87
PID 3932 set thread context of 3424	3932	svchost.exe	56
PID 3932 set thread context of 3424	3932	svchost.exe	56
PID 4532 set thread context of 3424	4532	rundll32.exe	56

Program crash 1 IoCs

pid	pid_target	Process	procid_target
4440	4928	WerFault.exe	83

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	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	1b26a745788fd6ad7ae9ac63cf5bcfd806d66b63d17541ddde02589fe10184b5.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	rundll32.exe

Suspicious behavior: EnumeratesProcesses 60 IoCs

pid	Process
3932	svchost.exe
3932	svchost.exe
3932	svchost.exe
3932	svchost.exe
3932	svchost.exe
3932	svchost.exe
4532	rundll32.exe
4532	rundll32.exe
4532	rundll32.exe
4532	rundll32.exe
4532	rundll32.exe
4532	rundll32.exe
4532	rundll32.exe
4532	rundll32.exe
4532	rundll32.exe
4532	rundll32.exe
4532	rundll32.exe
4532	rundll32.exe
4532	rundll32.exe
4532	rundll32.exe
4532	rundll32.exe
4532	rundll32.exe
4532	rundll32.exe
4532	rundll32.exe
4532	rundll32.exe
4532	rundll32.exe
4532	rundll32.exe
4532	rundll32.exe
4532	rundll32.exe
4532	rundll32.exe
4532	rundll32.exe
4532	rundll32.exe
4532	rundll32.exe
4532	rundll32.exe
4532	rundll32.exe
4532	rundll32.exe
4532	rundll32.exe
4532	rundll32.exe
4532	rundll32.exe
4532	rundll32.exe
4532	rundll32.exe
4532	rundll32.exe
4532	rundll32.exe
4532	rundll32.exe
4532	rundll32.exe
4532	rundll32.exe
4532	rundll32.exe
4532	rundll32.exe
4532	rundll32.exe
4532	rundll32.exe
4532	rundll32.exe
4532	rundll32.exe
4532	rundll32.exe
4532	rundll32.exe
4532	rundll32.exe
4532	rundll32.exe
4532	rundll32.exe
4532	rundll32.exe
4532	rundll32.exe
4532	rundll32.exe

Suspicious behavior: MapViewOfSection 7 IoCs

pid	Process
4928	1b26a745788fd6ad7ae9ac63cf5bcfd806d66b63d17541ddde02589fe10184b5.exe
3932	svchost.exe
3932	svchost.exe
3932	svchost.exe
3932	svchost.exe
4532	rundll32.exe
4532	rundll32.exe

Suspicious use of AdjustPrivilegeToken 18 IoCs

description	pid	Process
Token: SeDebugPrivilege	3932	svchost.exe
Token: SeShutdownPrivilege	3424	Explorer.EXE
Token: SeCreatePagefilePrivilege	3424	Explorer.EXE
Token: SeShutdownPrivilege	3424	Explorer.EXE
Token: SeCreatePagefilePrivilege	3424	Explorer.EXE
Token: SeShutdownPrivilege	3424	Explorer.EXE
Token: SeCreatePagefilePrivilege	3424	Explorer.EXE
Token: SeShutdownPrivilege	3424	Explorer.EXE
Token: SeCreatePagefilePrivilege	3424	Explorer.EXE
Token: SeShutdownPrivilege	3424	Explorer.EXE
Token: SeCreatePagefilePrivilege	3424	Explorer.EXE
Token: SeShutdownPrivilege	3424	Explorer.EXE
Token: SeCreatePagefilePrivilege	3424	Explorer.EXE
Token: SeShutdownPrivilege	3424	Explorer.EXE
Token: SeCreatePagefilePrivilege	3424	Explorer.EXE
Token: SeShutdownPrivilege	3424	Explorer.EXE
Token: SeCreatePagefilePrivilege	3424	Explorer.EXE
Token: SeDebugPrivilege	4532	rundll32.exe

Suspicious use of FindShellTrayWindow 2 IoCs

pid	Process
4928	1b26a745788fd6ad7ae9ac63cf5bcfd806d66b63d17541ddde02589fe10184b5.exe
4928	1b26a745788fd6ad7ae9ac63cf5bcfd806d66b63d17541ddde02589fe10184b5.exe

Suspicious use of SendNotifyMessage 2 IoCs

pid	Process
4928	1b26a745788fd6ad7ae9ac63cf5bcfd806d66b63d17541ddde02589fe10184b5.exe
4928	1b26a745788fd6ad7ae9ac63cf5bcfd806d66b63d17541ddde02589fe10184b5.exe

Suspicious use of UnmapMainImage 1 IoCs

pid	Process
3424	Explorer.EXE

Suspicious use of WriteProcessMemory 10 IoCs

description	pid	Process	procid_target
PID 4928 wrote to memory of 3932	4928	1b26a745788fd6ad7ae9ac63cf5bcfd806d66b63d17541ddde02589fe10184b5.exe	87
PID 4928 wrote to memory of 3932	4928	1b26a745788fd6ad7ae9ac63cf5bcfd806d66b63d17541ddde02589fe10184b5.exe	87
PID 4928 wrote to memory of 3932	4928	1b26a745788fd6ad7ae9ac63cf5bcfd806d66b63d17541ddde02589fe10184b5.exe	87
PID 4928 wrote to memory of 3932	4928	1b26a745788fd6ad7ae9ac63cf5bcfd806d66b63d17541ddde02589fe10184b5.exe	87
PID 3424 wrote to memory of 4532	3424	Explorer.EXE	96
PID 3424 wrote to memory of 4532	3424	Explorer.EXE	96
PID 3424 wrote to memory of 4532	3424	Explorer.EXE	96
PID 4532 wrote to memory of 4892	4532	rundll32.exe	98
PID 4532 wrote to memory of 4892	4532	rundll32.exe	98
PID 4532 wrote to memory of 4892	4532	rundll32.exe	98

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of UnmapMainImage
- Suspicious use of WriteProcessMemory
PID:3424
- C:\Users\Admin\AppData\Local\Temp\1b26a745788fd6ad7ae9ac63cf5bcfd806d66b63d17541ddde02589fe10184b5.exe
  "C:\Users\Admin\AppData\Local\Temp\1b26a745788fd6ad7ae9ac63cf5bcfd806d66b63d17541ddde02589fe10184b5.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:4928
- - C:\Windows\SysWOW64\svchost.exe
    "C:\Users\Admin\AppData\Local\Temp\1b26a745788fd6ad7ae9ac63cf5bcfd806d66b63d17541ddde02589fe10184b5.exe"
    3⤵
    - Suspicious use of SetThreadContext
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious behavior: MapViewOfSection
    - Suspicious use of AdjustPrivilegeToken
    PID:3932
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 4928 -s 708
    3⤵
    - Program crash
    PID:4440
- 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:4532
- - C:\Windows\SysWOW64\cmd.exe
    /c del "C:\Windows\SysWOW64\svchost.exe"
    3⤵
    - System Location Discovery: System Language Discovery
    PID:4892

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 4928 -ip 4928
1⤵
PID:2152

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/3424-21-0x00000000085A0000-0x000000000867E000-memory.dmp

Filesize
888KB

Download
memory/3424-32-0x0000000008CB0000-0x0000000008D80000-memory.dmp

Filesize
832KB

Download
memory/3424-30-0x0000000008CB0000-0x0000000008D80000-memory.dmp

Filesize
832KB

Download
memory/3424-16-0x00000000085A0000-0x000000000867E000-memory.dmp

Filesize
888KB

Download
memory/3424-29-0x0000000008CB0000-0x0000000008D80000-memory.dmp

Filesize
832KB

Download
memory/3424-26-0x000000000ADA0000-0x000000000AF40000-memory.dmp

Filesize
1.6MB

Download
memory/3424-20-0x000000000ADA0000-0x000000000AF40000-memory.dmp

Filesize
1.6MB

Download
memory/3932-15-0x00000000019C0000-0x00000000019D5000-memory.dmp

Filesize
84KB

Download
memory/3932-19-0x0000000003AB0000-0x0000000003AC5000-memory.dmp

Filesize
84KB

Download
memory/3932-18-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/3932-14-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/3932-12-0x0000000001C00000-0x0000000001F4A000-memory.dmp

Filesize
3.3MB

Download
memory/3932-11-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/4532-22-0x0000000000A70000-0x0000000000A84000-memory.dmp

Filesize
80KB

Download
memory/4532-24-0x0000000000A70000-0x0000000000A84000-memory.dmp

Filesize
80KB

Download
memory/4532-25-0x0000000000A40000-0x0000000000A6F000-memory.dmp

Filesize
188KB

Download
memory/4928-10-0x0000000002400000-0x0000000002404000-memory.dmp

Filesize
16KB

Download