formbook | 7668f7c8d41e0c40e2d21c5bbb6f59f5bd78069692ab56db831c4c7f2be9bf9c

Analysis

max time kernel
149s
max time network
137s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
09-09-2024 22:38

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General

Target

Ro1lNStkh187tOk.exe
Size

571KB
MD5

e2058924c6c6b95dfe0ab513fe6f03c5
SHA1

b65ed88c00f8d60a12d00886edb7e675e7971213
SHA256

05f3157ada1ddc0583e51a8602f352a8f9a4e139b6a624ee80a0e1acb7372920
SHA512

cc505b1987b6974abd4b47ca6beb0ec04c82ceb4ca1ef6d0c810b1ad680cd94f15cf8bfea3ebf6a7f47a3329b1b59463d0914863deca0ee5931d55befbf4e64c
SSDEEP

12288:y9/kf31t3YGgeiiWAXVXL+oQznkQaVYJJKkBF45sfS9i72l:jP1t3OSXVXCoQTkQNr4q6kE

Score

10^/10

formbook b31a discovery rat spyware stealer trojan

Malware Config

Extracted

Family

formbook

Version

4.1

Campaign

b31a

Decoy

enjamin-paaac.buzz

mail-marketing-40950.bond

pusems28-post.cyou

hindo.top

ruck-company-be.today

asinos-deutschland.net

ewancash.boats

etdopovo.casino

rcher-saaac.buzz

871166.vip

manuel.app

g3yqo.shop

-9way.xyz

qawgytfexe.bond

iefi6834.vip

ental-health-35901.bond

idat-merkez18.top

rojectleadzone.website

lirudolph.top

migloballlc.online

Signatures

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

Formbook payload 3 IoCs

rat

resource	yara_rule
behavioral2/memory/4540-11-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral2/memory/4540-16-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral2/memory/4356-21-0x0000000000430000-0x000000000045F000-memory.dmp	formbook

Suspicious use of SetThreadContext 3 IoCs

description	pid	Process	procid_target
PID 4496 set thread context of 4540	4496	Ro1lNStkh187tOk.exe	94
PID 4540 set thread context of 3632	4540	Ro1lNStkh187tOk.exe	56
PID 4356 set thread context of 3632	4356	help.exe	56

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	Ro1lNStkh187tOk.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	help.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe

Suspicious behavior: EnumeratesProcesses 62 IoCs

pid	Process
4496	Ro1lNStkh187tOk.exe
4496	Ro1lNStkh187tOk.exe
4496	Ro1lNStkh187tOk.exe
4496	Ro1lNStkh187tOk.exe
4540	Ro1lNStkh187tOk.exe
4540	Ro1lNStkh187tOk.exe
4540	Ro1lNStkh187tOk.exe
4540	Ro1lNStkh187tOk.exe
4356	help.exe
4356	help.exe
4356	help.exe
4356	help.exe
4356	help.exe
4356	help.exe
4356	help.exe
4356	help.exe
4356	help.exe
4356	help.exe
4356	help.exe
4356	help.exe
4356	help.exe
4356	help.exe
4356	help.exe
4356	help.exe
4356	help.exe
4356	help.exe
4356	help.exe
4356	help.exe
4356	help.exe
4356	help.exe
4356	help.exe
4356	help.exe
4356	help.exe
4356	help.exe
4356	help.exe
4356	help.exe
4356	help.exe
4356	help.exe
4356	help.exe
4356	help.exe
4356	help.exe
4356	help.exe
4356	help.exe
4356	help.exe
4356	help.exe
4356	help.exe
4356	help.exe
4356	help.exe
4356	help.exe
4356	help.exe
4356	help.exe
4356	help.exe
4356	help.exe
4356	help.exe
4356	help.exe
4356	help.exe
4356	help.exe
4356	help.exe
4356	help.exe
4356	help.exe
4356	help.exe
4356	help.exe

Suspicious behavior: MapViewOfSection 5 IoCs

pid	Process
4540	Ro1lNStkh187tOk.exe
4540	Ro1lNStkh187tOk.exe
4540	Ro1lNStkh187tOk.exe
4356	help.exe
4356	help.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeDebugPrivilege	4496	Ro1lNStkh187tOk.exe
Token: SeDebugPrivilege	4540	Ro1lNStkh187tOk.exe
Token: SeDebugPrivilege	4356	help.exe

Suspicious use of UnmapMainImage 1 IoCs

pid	Process
3632	Explorer.EXE

Suspicious use of WriteProcessMemory 15 IoCs

description	pid	Process	procid_target
PID 4496 wrote to memory of 1460	4496	Ro1lNStkh187tOk.exe	93
PID 4496 wrote to memory of 1460	4496	Ro1lNStkh187tOk.exe	93
PID 4496 wrote to memory of 1460	4496	Ro1lNStkh187tOk.exe	93
PID 4496 wrote to memory of 4540	4496	Ro1lNStkh187tOk.exe	94
PID 4496 wrote to memory of 4540	4496	Ro1lNStkh187tOk.exe	94
PID 4496 wrote to memory of 4540	4496	Ro1lNStkh187tOk.exe	94
PID 4496 wrote to memory of 4540	4496	Ro1lNStkh187tOk.exe	94
PID 4496 wrote to memory of 4540	4496	Ro1lNStkh187tOk.exe	94
PID 4496 wrote to memory of 4540	4496	Ro1lNStkh187tOk.exe	94
PID 3632 wrote to memory of 4356	3632	Explorer.EXE	95
PID 3632 wrote to memory of 4356	3632	Explorer.EXE	95
PID 3632 wrote to memory of 4356	3632	Explorer.EXE	95
PID 4356 wrote to memory of 1992	4356	help.exe	96
PID 4356 wrote to memory of 1992	4356	help.exe	96
PID 4356 wrote to memory of 1992	4356	help.exe	96

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of UnmapMainImage
- Suspicious use of WriteProcessMemory
PID:3632
- C:\Users\Admin\AppData\Local\Temp\Ro1lNStkh187tOk.exe
  "C:\Users\Admin\AppData\Local\Temp\Ro1lNStkh187tOk.exe"
  2⤵
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:4496
- - C:\Users\Admin\AppData\Local\Temp\Ro1lNStkh187tOk.exe
    "C:\Users\Admin\AppData\Local\Temp\Ro1lNStkh187tOk.exe"
    3⤵
    PID:1460
- - C:\Users\Admin\AppData\Local\Temp\Ro1lNStkh187tOk.exe
    "C:\Users\Admin\AppData\Local\Temp\Ro1lNStkh187tOk.exe"
    3⤵
    - Suspicious use of SetThreadContext
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious behavior: MapViewOfSection
    - Suspicious use of AdjustPrivilegeToken
    PID:4540
- C:\Windows\SysWOW64\help.exe
  "C:\Windows\SysWOW64\help.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:4356
- - C:\Windows\SysWOW64\cmd.exe
    /c del "C:\Users\Admin\AppData\Local\Temp\Ro1lNStkh187tOk.exe"
    3⤵
    - System Location Discovery: System Language Discovery
    PID:1992

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

Replay Monitor

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Downloads

memory/3632-18-0x0000000007CA0000-0x0000000007E16000-memory.dmp

Filesize
1.5MB

Download
memory/3632-29-0x00000000082F0000-0x000000000845F000-memory.dmp

Filesize
1.4MB

Download
memory/3632-27-0x00000000082F0000-0x000000000845F000-memory.dmp

Filesize
1.4MB

Download
memory/3632-26-0x00000000082F0000-0x000000000845F000-memory.dmp

Filesize
1.4MB

Download
memory/3632-22-0x0000000007CA0000-0x0000000007E16000-memory.dmp

Filesize
1.5MB

Download
memory/4356-21-0x0000000000430000-0x000000000045F000-memory.dmp

Filesize
188KB

Download
memory/4356-19-0x00000000009A0000-0x00000000009A7000-memory.dmp

Filesize
28KB

Download
memory/4356-20-0x00000000009A0000-0x00000000009A7000-memory.dmp

Filesize
28KB

Download
memory/4496-6-0x0000000005060000-0x0000000005070000-memory.dmp

Filesize
64KB

Download
memory/4496-0-0x00000000748BE000-0x00000000748BF000-memory.dmp

Filesize
4KB

Download
memory/4496-10-0x0000000008A60000-0x0000000008AFC000-memory.dmp

Filesize
624KB

Download
memory/4496-1-0x0000000000350000-0x00000000003E4000-memory.dmp

Filesize
592KB

Download
memory/4496-13-0x00000000748B0000-0x0000000075060000-memory.dmp

Filesize
7.7MB

Download
memory/4496-2-0x0000000005480000-0x0000000005A24000-memory.dmp

Filesize
5.6MB

Download
memory/4496-3-0x0000000004DB0000-0x0000000004E42000-memory.dmp

Filesize
584KB

Download
memory/4496-5-0x0000000004E70000-0x0000000004E7A000-memory.dmp

Filesize
40KB

Download
memory/4496-8-0x00000000748B0000-0x0000000075060000-memory.dmp

Filesize
7.7MB

Download
memory/4496-7-0x00000000748BE000-0x00000000748BF000-memory.dmp

Filesize
4KB

Download
memory/4496-9-0x00000000062A0000-0x0000000006316000-memory.dmp

Filesize
472KB

Download
memory/4496-4-0x00000000748B0000-0x0000000075060000-memory.dmp

Filesize
7.7MB

Download
memory/4540-16-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/4540-17-0x00000000014C0000-0x00000000014D4000-memory.dmp

Filesize
80KB

Download
memory/4540-14-0x0000000001510000-0x000000000185A000-memory.dmp

Filesize
3.3MB

Download
memory/4540-11-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download