formbook | 2f1f6bee630ceab483495b681e2468e018f6a9f2f28842d9ac7b40cf1e621f08

Analysis

max time kernel
150s
max time network
149s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
05-08-2024 14:03

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General

Target

MalwareBazaar.exe
Size

1.1MB
MD5

dca3f0ad0eaa9ed5eabfab13b8e5e72c
SHA1

2db545db06211a8dd2317e9e08b5fdfc3431ca28
SHA256

2f1f6bee630ceab483495b681e2468e018f6a9f2f28842d9ac7b40cf1e621f08
SHA512

21b1e786096e88434320020c13eef11e18c73d8b2d115425e731391a28c15739f3d55532cf08cb5d53fe7c2e5dae58a016d3202aeb7362a45e8520ce1cb38e61
SSDEEP

24576:KqDEvCTbMWu7rQYlBQcBiT6rprG8aw9tMmI3fHsDbo:KTvC/MTQYxsWR7aw9emI/2

Score

10^/10

formbook lm31 discovery rat spyware stealer trojan

Malware Config

Extracted

Family

formbook

Version

4.1

Campaign

lm31

Decoy

dr-shahmoradi.com

mogu.live

antoni-tapies.com

fhwz79.com

worldskillscompetition.com

521b421.com

jinchenlan.com

beenprintin.com

easysnatch.store

cepatsukses.pro

yepyepper.com

privateschoolwichita.com

vanguardartisan.com

hbvc.xyz

17eclbet.com

loki360store.com

greatfinland.com

pranaimed.com

20587.asia

stelariptv.com

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/4448-12-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral2/memory/4448-15-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral2/memory/2528-20-0x00000000010D0000-0x00000000010FF000-memory.dmp	formbook

Suspicious use of SetThreadContext 3 IoCs

description	pid	Process	procid_target
PID 4524 set thread context of 4448	4524	MalwareBazaar.exe	86
PID 4448 set thread context of 3528	4448	svchost.exe	56
PID 2528 set thread context of 3528	2528	ipconfig.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	ipconfig.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	MalwareBazaar.exe

Gathers network information 2 TTPs 1 IoCs

Uses commandline utility to view network configuration.

System Information Discovery

T1082

Command and Scripting Interpreter

T1059

pid	Process
2528	ipconfig.exe

Suspicious behavior: EnumeratesProcesses 62 IoCs

pid	Process
4448	svchost.exe
4448	svchost.exe
4448	svchost.exe
4448	svchost.exe
2528	ipconfig.exe
2528	ipconfig.exe
2528	ipconfig.exe
2528	ipconfig.exe
2528	ipconfig.exe
2528	ipconfig.exe
2528	ipconfig.exe
2528	ipconfig.exe
2528	ipconfig.exe
2528	ipconfig.exe
2528	ipconfig.exe
2528	ipconfig.exe
2528	ipconfig.exe
2528	ipconfig.exe
2528	ipconfig.exe
2528	ipconfig.exe
2528	ipconfig.exe
2528	ipconfig.exe
2528	ipconfig.exe
2528	ipconfig.exe
2528	ipconfig.exe
2528	ipconfig.exe
2528	ipconfig.exe
2528	ipconfig.exe
2528	ipconfig.exe
2528	ipconfig.exe
2528	ipconfig.exe
2528	ipconfig.exe
2528	ipconfig.exe
2528	ipconfig.exe
2528	ipconfig.exe
2528	ipconfig.exe
2528	ipconfig.exe
2528	ipconfig.exe
2528	ipconfig.exe
2528	ipconfig.exe
2528	ipconfig.exe
2528	ipconfig.exe
2528	ipconfig.exe
2528	ipconfig.exe
2528	ipconfig.exe
2528	ipconfig.exe
2528	ipconfig.exe
2528	ipconfig.exe
2528	ipconfig.exe
2528	ipconfig.exe
2528	ipconfig.exe
2528	ipconfig.exe
2528	ipconfig.exe
2528	ipconfig.exe
2528	ipconfig.exe
2528	ipconfig.exe
2528	ipconfig.exe
2528	ipconfig.exe
2528	ipconfig.exe
2528	ipconfig.exe
2528	ipconfig.exe
2528	ipconfig.exe

Suspicious behavior: MapViewOfSection 6 IoCs

pid	Process
4524	MalwareBazaar.exe
4448	svchost.exe
4448	svchost.exe
4448	svchost.exe
2528	ipconfig.exe
2528	ipconfig.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	4448	svchost.exe
Token: SeDebugPrivilege	2528	ipconfig.exe

Suspicious use of FindShellTrayWindow 2 IoCs

pid	Process
4524	MalwareBazaar.exe
4524	MalwareBazaar.exe

Suspicious use of SendNotifyMessage 2 IoCs

pid	Process
4524	MalwareBazaar.exe
4524	MalwareBazaar.exe

Suspicious use of UnmapMainImage 1 IoCs

pid	Process
3528	Explorer.EXE

Suspicious use of WriteProcessMemory 10 IoCs

description	pid	Process	procid_target
PID 4524 wrote to memory of 4448	4524	MalwareBazaar.exe	86
PID 4524 wrote to memory of 4448	4524	MalwareBazaar.exe	86
PID 4524 wrote to memory of 4448	4524	MalwareBazaar.exe	86
PID 4524 wrote to memory of 4448	4524	MalwareBazaar.exe	86
PID 3528 wrote to memory of 2528	3528	Explorer.EXE	87
PID 3528 wrote to memory of 2528	3528	Explorer.EXE	87
PID 3528 wrote to memory of 2528	3528	Explorer.EXE	87
PID 2528 wrote to memory of 3688	2528	ipconfig.exe	88
PID 2528 wrote to memory of 3688	2528	ipconfig.exe	88
PID 2528 wrote to memory of 3688	2528	ipconfig.exe	88

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of UnmapMainImage
- Suspicious use of WriteProcessMemory
PID:3528
- C:\Users\Admin\AppData\Local\Temp\MalwareBazaar.exe
  "C:\Users\Admin\AppData\Local\Temp\MalwareBazaar.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:4524
- - C:\Windows\SysWOW64\svchost.exe
    "C:\Users\Admin\AppData\Local\Temp\MalwareBazaar.exe"
    3⤵
    - Suspicious use of SetThreadContext
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious behavior: MapViewOfSection
    - Suspicious use of AdjustPrivilegeToken
    PID:4448
- C:\Windows\SysWOW64\ipconfig.exe
  "C:\Windows\SysWOW64\ipconfig.exe"
  2⤵
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Gathers network information
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious behavior: MapViewOfSection
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:2528
- - C:\Windows\SysWOW64\cmd.exe
    /c del "C:\Windows\SysWOW64\svchost.exe"
    3⤵
    - System Location Discovery: System Language Discovery
    PID:3688

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

T1059

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

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Downloads

memory/2528-18-0x0000000000020000-0x000000000002B000-memory.dmp

Filesize
44KB

Download
memory/2528-20-0x00000000010D0000-0x00000000010FF000-memory.dmp

Filesize
188KB

Download
memory/2528-19-0x0000000000020000-0x000000000002B000-memory.dmp

Filesize
44KB

Download
memory/3528-22-0x00000000049E0000-0x0000000004ADF000-memory.dmp

Filesize
1020KB

Download
memory/3528-17-0x00000000049E0000-0x0000000004ADF000-memory.dmp

Filesize
1020KB

Download
memory/3528-25-0x0000000008E50000-0x0000000008FD5000-memory.dmp

Filesize
1.5MB

Download
memory/3528-26-0x0000000008E50000-0x0000000008FD5000-memory.dmp

Filesize
1.5MB

Download
memory/3528-29-0x0000000008E50000-0x0000000008FD5000-memory.dmp

Filesize
1.5MB

Download
memory/4448-15-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/4448-16-0x0000000002150000-0x0000000002164000-memory.dmp

Filesize
80KB

Download
memory/4448-13-0x0000000001C00000-0x0000000001F4A000-memory.dmp

Filesize
3.3MB

Download
memory/4448-12-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/4524-11-0x00000000013C0000-0x00000000013C4000-memory.dmp

Filesize
16KB

Download