formbook | 6d76e5df40e22d995260686fc0a37eb0520eac5988fa45945c45d7d727ffdb1a

General

Target

triage_dropped_file.exe
Size

514KB
MD5

d1eee2a323fecd8a01d5f6adf16a4649
SHA1

7a2e157e233c35cee54427e9b85cc4548b1b956a
SHA256

6d76e5df40e22d995260686fc0a37eb0520eac5988fa45945c45d7d727ffdb1a
SHA512

e4d8463aedfeaa62ea03499fb63c36ea20009f91b5a47d096a65e85eb10d430b03f8c8384bc0cc18a16133d8294fc66aff7fa6fbc870c43ff312f1299f235934

Score

10^/10

formbook m8g0 rat spyware stealer trojan

Malware Config

Extracted

Family

formbook

Version

4.1

Campaign

m8g0

C2

http://www.corbvalperu.com/m8g0/

Decoy

exclusivecan.com

junzhesuji.com

acces-credit-mutuel.com

iknitvintage.com

solonmodelun.com

debekia.com

peanutskitchen.com

kamanantzin.com

personalmodeststyle.com

qo49.com

googman.site

maisonshahnaz.com

annaalexandrovich.com

californiacashcars.com

ncafashionboutique.com

nsu0.com

cloudfirstlender.com

allforchildren.net

vn80000.com

restroon.com

Signatures

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

Formbook Payload 3 IoCs

rat

Processes:

resource	yara_rule
behavioral2/memory/4024-125-0x0000000000400000-0x000000000042E000-memory.dmp	formbook
behavioral2/memory/4024-126-0x000000000041EB70-mapping.dmp	formbook
behavioral2/memory/1672-132-0x0000000003200000-0x000000000322E000-memory.dmp	formbook

Suspicious use of SetThreadContext 3 IoCs

Processes:

triage_dropped_file.exetriage_dropped_file.exenetsh.exe

description	pid	process	target process
PID 3996 set thread context of 4024	3996	triage_dropped_file.exe	triage_dropped_file.exe
PID 4024 set thread context of 3008	4024	triage_dropped_file.exe	Explorer.EXE
PID 1672 set thread context of 3008	1672	netsh.exe	Explorer.EXE

Modifies registry class 2 IoCs

Processes:

Explorer.EXE

description	ioc	process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{4336a54d-038b-4685-ab02-99bb52d3fb8b}\Instance	Explorer.EXE
Key created	\REGISTRY\USER\S-1-5-21-2559286294-2439613352-4032193287-1000_Classes\CLSID\{018D5C66-4533-4307-9B53-224DE2ED1FE6}\Instance	Explorer.EXE

Suspicious behavior: EnumeratesProcesses 42 IoCs

Processes:

triage_dropped_file.exenetsh.exe

pid	process
4024	triage_dropped_file.exe
4024	triage_dropped_file.exe
4024	triage_dropped_file.exe
4024	triage_dropped_file.exe
1672	netsh.exe
1672	netsh.exe
1672	netsh.exe
1672	netsh.exe
1672	netsh.exe
1672	netsh.exe
1672	netsh.exe
1672	netsh.exe
1672	netsh.exe
1672	netsh.exe
1672	netsh.exe
1672	netsh.exe
1672	netsh.exe
1672	netsh.exe
1672	netsh.exe
1672	netsh.exe
1672	netsh.exe
1672	netsh.exe
1672	netsh.exe
1672	netsh.exe
1672	netsh.exe
1672	netsh.exe
1672	netsh.exe
1672	netsh.exe
1672	netsh.exe
1672	netsh.exe
1672	netsh.exe
1672	netsh.exe
1672	netsh.exe
1672	netsh.exe
1672	netsh.exe
1672	netsh.exe
1672	netsh.exe
1672	netsh.exe
1672	netsh.exe
1672	netsh.exe
1672	netsh.exe
1672	netsh.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

Explorer.EXE

pid process

3008 Explorer.EXE
Suspicious behavior: MapViewOfSection 5 IoCs

Processes:

triage_dropped_file.exenetsh.exe

pid process

4024 triage_dropped_file.exe
4024 triage_dropped_file.exe
4024 triage_dropped_file.exe
1672 netsh.exe
1672 netsh.exe
Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

triage_dropped_file.exenetsh.exe

description pid process

Token: SeDebugPrivilege 4024 triage_dropped_file.exe
Token: SeDebugPrivilege 1672 netsh.exe
Suspicious use of FindShellTrayWindow 8 IoCs

Processes:

Explorer.EXE

pid process

3008 Explorer.EXE
3008 Explorer.EXE
3008 Explorer.EXE
3008 Explorer.EXE
3008 Explorer.EXE
3008 Explorer.EXE
3008 Explorer.EXE
3008 Explorer.EXE

pid	process
3008	Explorer.EXE

description	pid	process
Token: SeDebugPrivilege	4024	triage_dropped_file.exe
Token: SeDebugPrivilege	1672	netsh.exe

pid	process
3008	Explorer.EXE
3008	Explorer.EXE
3008	Explorer.EXE
3008	Explorer.EXE
3008	Explorer.EXE
3008	Explorer.EXE
3008	Explorer.EXE
3008	Explorer.EXE

Suspicious use of WriteProcessMemory 12 IoCs

Processes:

triage_dropped_file.exeExplorer.EXEnetsh.exe

description	pid	process	target process
PID 3996 wrote to memory of 4024	3996	triage_dropped_file.exe	triage_dropped_file.exe
PID 3996 wrote to memory of 4024	3996	triage_dropped_file.exe	triage_dropped_file.exe
PID 3996 wrote to memory of 4024	3996	triage_dropped_file.exe	triage_dropped_file.exe
PID 3996 wrote to memory of 4024	3996	triage_dropped_file.exe	triage_dropped_file.exe
PID 3996 wrote to memory of 4024	3996	triage_dropped_file.exe	triage_dropped_file.exe
PID 3996 wrote to memory of 4024	3996	triage_dropped_file.exe	triage_dropped_file.exe
PID 3008 wrote to memory of 1672	3008	Explorer.EXE	netsh.exe
PID 3008 wrote to memory of 1672	3008	Explorer.EXE	netsh.exe
PID 3008 wrote to memory of 1672	3008	Explorer.EXE	netsh.exe
PID 1672 wrote to memory of 2980	1672	netsh.exe	cmd.exe
PID 1672 wrote to memory of 2980	1672	netsh.exe	cmd.exe
PID 1672 wrote to memory of 2980	1672	netsh.exe	cmd.exe

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Modifies registry class
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of FindShellTrayWindow
- Suspicious use of WriteProcessMemory
PID:3008

C:\Users\Admin\AppData\Local\Temp\triage_dropped_file.exe
"C:\Users\Admin\AppData\Local\Temp\triage_dropped_file.exe"
2⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:3996

C:\Users\Admin\AppData\Local\Temp\triage_dropped_file.exe
"C:\Users\Admin\AppData\Local\Temp\triage_dropped_file.exe"
3⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
PID:4024

C:\Windows\SysWOW64\netsh.exe
"C:\Windows\SysWOW64\netsh.exe"
2⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1672

C:\Windows\SysWOW64\cmd.exe
/c del "C:\Users\Admin\AppData\Local\Temp\triage_dropped_file.exe"
3⤵
PID:2980

Network

MITRE ATT&CK Matrix

Replay Monitor

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Downloads

memory/1672-135-0x0000000003870000-0x0000000003903000-memory.dmp

Filesize
588KB

Download
memory/1672-133-0x00000000034B0000-0x00000000037D0000-memory.dmp

Filesize
3.1MB

Download
memory/1672-132-0x0000000003200000-0x000000000322E000-memory.dmp

Filesize
184KB

Download
memory/1672-131-0x0000000000EC0000-0x0000000000EDE000-memory.dmp

Filesize
120KB

Download
memory/1672-130-0x0000000000000000-mapping.dmp

Download
memory/2980-134-0x0000000000000000-mapping.dmp

Download
memory/3008-129-0x00000000033E0000-0x00000000034B7000-memory.dmp

Filesize
860KB

Download
memory/3008-136-0x0000000005E70000-0x0000000005F88000-memory.dmp

Filesize
1.1MB

Download
memory/3996-121-0x0000000004EC0000-0x0000000004EC7000-memory.dmp

Filesize
28KB

Download
memory/3996-124-0x0000000006AE0000-0x0000000006B0F000-memory.dmp

Filesize
188KB

Download
memory/3996-123-0x0000000006A70000-0x0000000006AD5000-memory.dmp

Filesize
404KB

Download
memory/3996-122-0x0000000004B80000-0x000000000507E000-memory.dmp

Filesize
5.0MB

Download
memory/3996-115-0x0000000000390000-0x0000000000391000-memory.dmp

Filesize
4KB

Download
memory/3996-120-0x0000000008150000-0x0000000008151000-memory.dmp

Filesize
4KB

Download
memory/3996-119-0x0000000004C50000-0x0000000004C51000-memory.dmp

Filesize
4KB

Download
memory/3996-118-0x0000000004C60000-0x0000000004C61000-memory.dmp

Filesize
4KB

Download
memory/3996-117-0x0000000005080000-0x0000000005081000-memory.dmp

Filesize
4KB

Download
memory/4024-125-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download
memory/4024-126-0x000000000041EB70-mapping.dmp

Download
memory/4024-128-0x00000000014B0000-0x00000000014C4000-memory.dmp

Filesize
80KB

Download
memory/4024-127-0x0000000001170000-0x0000000001490000-memory.dmp

Filesize
3.1MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix

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Downloads