formbook | d3cc5286f50845f71f6ed6e400e90cbe47840b3939924c40424cadf3201524ad

General

Target

H4vBtZsi8xAKaMm.exe
Size

1.2MB
MD5

7eabab04e4a6fdd45238e32ed81e222c
SHA1

e0e1dc469746f5e2e049ea4a93d9b09a9227b342
SHA256

b79d2d02fe777cfd64723ad9b3935b30c00cbc75614fcadbf867cce88df4a8fd
SHA512

eeaa0f02a15a66b3363f94730ad3cf7c533a4bf303cfa0f53b21959a54dc0f65c50b1ac179aa5f992e3e17bbfaaa1b7393da3d1859ddd51932d36bdf0b7fa21b

Score

10^/10

formbook u1p5 rat spyware stealer trojan

Malware Config

Extracted

Family

formbook

Version

4.1

Campaign

u1p5

Decoy

yannickrast.com

shitcoin.team

mysweetelissa.com

tpnfrgm2wrld.xyz

freeclothesonline.com

rhoads-music.com

tanglewoodrx.com

sharkeycustoms.com

bonin-island.com

apeutah.com

metacehennem.xyz

deutscheno1.com

e-gate-io.store

hometoto.xyz

jojomove.com

vzn2aai2qj.icu

couponcodes6.com

pbcgotv.com

metarealtyhome.com

geymall.com

Signatures

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

Formbook Payload 4 IoCs

rat

Processes:

resource	yara_rule
behavioral2/memory/4344-125-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral2/memory/4344-128-0x0000000001020000-0x000000000116A000-memory.dmp	formbook
behavioral2/memory/4344-130-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral2/memory/4504-134-0x0000000000C00000-0x0000000000C2F000-memory.dmp	formbook

Suspicious use of SetThreadContext 4 IoCs

Processes:

H4vBtZsi8xAKaMm.exeMSBuild.exechkdsk.exe

description	pid	process	target process
PID 3452 set thread context of 4344	3452	H4vBtZsi8xAKaMm.exe	MSBuild.exe
PID 4344 set thread context of 3020	4344	MSBuild.exe	Explorer.EXE
PID 4344 set thread context of 3020	4344	MSBuild.exe	Explorer.EXE
PID 4504 set thread context of 3020	4504	chkdsk.exe	Explorer.EXE

Enumerates system info in registry 2 TTPs 1 IoCs

Query Registry
T1012

System Information Discovery
T1082

Processes:

chkdsk.exe

description ioc process

Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\Identifier chkdsk.exe

description	ioc	process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\Identifier	chkdsk.exe

Suspicious behavior: EnumeratesProcesses 41 IoCs

Processes:

H4vBtZsi8xAKaMm.exeMSBuild.exechkdsk.exe

pid	process
3452	H4vBtZsi8xAKaMm.exe
4344	MSBuild.exe
4344	MSBuild.exe
4344	MSBuild.exe
4344	MSBuild.exe
4344	MSBuild.exe
4344	MSBuild.exe
4504	chkdsk.exe
4504	chkdsk.exe
4504	chkdsk.exe
4504	chkdsk.exe
4504	chkdsk.exe
4504	chkdsk.exe
4504	chkdsk.exe
4504	chkdsk.exe
4504	chkdsk.exe
4504	chkdsk.exe
4504	chkdsk.exe
4504	chkdsk.exe
4504	chkdsk.exe
4504	chkdsk.exe
4504	chkdsk.exe
4504	chkdsk.exe
4504	chkdsk.exe
4504	chkdsk.exe
4504	chkdsk.exe
4504	chkdsk.exe
4504	chkdsk.exe
4504	chkdsk.exe
4504	chkdsk.exe
4504	chkdsk.exe
4504	chkdsk.exe
4504	chkdsk.exe
4504	chkdsk.exe
4504	chkdsk.exe
4504	chkdsk.exe
4504	chkdsk.exe
4504	chkdsk.exe
4504	chkdsk.exe
4504	chkdsk.exe
4504	chkdsk.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

Explorer.EXE

pid process

3020 Explorer.EXE
Suspicious behavior: MapViewOfSection 6 IoCs

Processes:

MSBuild.exechkdsk.exe

pid process

4344 MSBuild.exe
4344 MSBuild.exe
4344 MSBuild.exe
4344 MSBuild.exe
4504 chkdsk.exe
4504 chkdsk.exe
Suspicious use of AdjustPrivilegeToken 3 IoCs

Processes:

H4vBtZsi8xAKaMm.exeMSBuild.exechkdsk.exe

description pid process

Token: SeDebugPrivilege 3452 H4vBtZsi8xAKaMm.exe
Token: SeDebugPrivilege 4344 MSBuild.exe
Token: SeDebugPrivilege 4504 chkdsk.exe

pid	process
3020	Explorer.EXE

pid	process
4344	MSBuild.exe
4344	MSBuild.exe
4344	MSBuild.exe
4344	MSBuild.exe
4504	chkdsk.exe
4504	chkdsk.exe

description	pid	process
Token: SeDebugPrivilege	3452	H4vBtZsi8xAKaMm.exe
Token: SeDebugPrivilege	4344	MSBuild.exe
Token: SeDebugPrivilege	4504	chkdsk.exe

Suspicious use of WriteProcessMemory 12 IoCs

Processes:

H4vBtZsi8xAKaMm.exeMSBuild.exechkdsk.exe

description	pid	process	target process
PID 3452 wrote to memory of 4344	3452	H4vBtZsi8xAKaMm.exe	MSBuild.exe
PID 3452 wrote to memory of 4344	3452	H4vBtZsi8xAKaMm.exe	MSBuild.exe
PID 3452 wrote to memory of 4344	3452	H4vBtZsi8xAKaMm.exe	MSBuild.exe
PID 3452 wrote to memory of 4344	3452	H4vBtZsi8xAKaMm.exe	MSBuild.exe
PID 3452 wrote to memory of 4344	3452	H4vBtZsi8xAKaMm.exe	MSBuild.exe
PID 3452 wrote to memory of 4344	3452	H4vBtZsi8xAKaMm.exe	MSBuild.exe
PID 4344 wrote to memory of 4504	4344	MSBuild.exe	chkdsk.exe
PID 4344 wrote to memory of 4504	4344	MSBuild.exe	chkdsk.exe
PID 4344 wrote to memory of 4504	4344	MSBuild.exe	chkdsk.exe
PID 4504 wrote to memory of 2684	4504	chkdsk.exe	cmd.exe
PID 4504 wrote to memory of 2684	4504	chkdsk.exe	cmd.exe
PID 4504 wrote to memory of 2684	4504	chkdsk.exe	cmd.exe

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious behavior: GetForegroundWindowSpam
PID:3020

C:\Users\Admin\AppData\Local\Temp\H4vBtZsi8xAKaMm.exe
"C:\Users\Admin\AppData\Local\Temp\H4vBtZsi8xAKaMm.exe"
2⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3452

C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe
"{path}"
3⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4344

C:\Windows\SysWOW64\chkdsk.exe
"C:\Windows\SysWOW64\chkdsk.exe"
4⤵
- Suspicious use of SetThreadContext
- Enumerates system info in registry
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4504

C:\Windows\SysWOW64\cmd.exe
/c del "C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe"
5⤵
PID:2684

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

1

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

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Downloads

memory/3020-129-0x0000000005F30000-0x00000000060D9000-memory.dmp

Filesize
1.7MB

Download
memory/3020-132-0x0000000006480000-0x00000000065AE000-memory.dmp

Filesize
1.2MB

Download
memory/3020-137-0x0000000002D80000-0x0000000002E64000-memory.dmp

Filesize
912KB

Download
memory/3452-121-0x0000000004FA0000-0x000000000549E000-memory.dmp

Filesize
5.0MB

Download
memory/3452-119-0x0000000004F10000-0x0000000004F1A000-memory.dmp

Filesize
40KB

Download
memory/3452-120-0x0000000005190000-0x00000000051E6000-memory.dmp

Filesize
344KB

Download
memory/3452-118-0x0000000004FA0000-0x0000000005032000-memory.dmp

Filesize
584KB

Download
memory/3452-122-0x0000000005170000-0x000000000517A000-memory.dmp

Filesize
40KB

Download
memory/3452-123-0x0000000007450000-0x00000000074D8000-memory.dmp

Filesize
544KB

Download
memory/3452-124-0x00000000099C0000-0x00000000099F4000-memory.dmp

Filesize
208KB

Download
memory/3452-115-0x00000000003E0000-0x0000000000524000-memory.dmp

Filesize
1.3MB

Download
memory/3452-117-0x00000000054A0000-0x000000000599E000-memory.dmp

Filesize
5.0MB

Download
memory/3452-116-0x0000000004E30000-0x0000000004ECC000-memory.dmp

Filesize
624KB

Download
memory/4344-125-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/4344-130-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/4344-131-0x0000000001180000-0x0000000001A40000-memory.dmp

Filesize
8.8MB

Download
memory/4344-128-0x0000000001020000-0x000000000116A000-memory.dmp

Filesize
1.3MB

Download
memory/4344-127-0x00000000015C0000-0x00000000018E0000-memory.dmp

Filesize
3.1MB

Download
memory/4504-134-0x0000000000C00000-0x0000000000C2F000-memory.dmp

Filesize
188KB

Download
memory/4504-133-0x0000000000E90000-0x0000000000E9A000-memory.dmp

Filesize
40KB

Download
memory/4504-135-0x0000000005540000-0x0000000005860000-memory.dmp

Filesize
3.1MB

Download
memory/4504-136-0x0000000005200000-0x000000000539A000-memory.dmp

Filesize
1.6MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads