formbook | beda9d96a4b8f3e2ef15eaaee301e3c55ca579e3fb9044e5f580f3fb189b39c1

General

Target

611241.exe
Size

252KB
MD5

492855c0720ae91f1829f169416ec8f0
SHA1

6f48a4c265203ddb73c285cc1fd6214b393e1f3f
SHA256

d3520e70ee03f0daa0cd5bdb69502d0e9cdbda240c683290c6f82795a66ba5cd
SHA512

925ce8a932b08c15fefae047a519d97f48d8fb8d29ff56c87ff613b342249c73a89f9202c1e9a1a4034518a29c39af14a9c6226705d7b0ed0f8d073e81d28c00

Score

10^/10

formbook w6ya rat spyware stealer trojan

Malware Config

Extracted

Family

formbook

Version

4.1

Campaign

w6ya

C2

http://www.truth-capturemachine.com/w6ya/

Decoy

auden-audio.com

zombieodyssey.com

hdpthg.com

toddtechnical.com

njsdgz.com

yieldfarm.world

guardsveirfynews.net

atmamandir.info

eskisehirtostcusu.online

arrozz.net

v99king.win

jaxonboxing.com

morganevans.net

syandeg.com

valleyofplants.com

corsosportorico.com

tak.support

blacktgpc.com

herdpetshop.com

iifkvhns.xyz

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/348-116-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral2/memory/348-117-0x000000000041F150-mapping.dmp	formbook
behavioral2/memory/2280-124-0x00000000024A0000-0x00000000024CF000-memory.dmp	formbook

Loads dropped DLL 1 IoCs

Processes:

611241.exe

pid process

3940 611241.exe

pid	process
3940	611241.exe

Suspicious use of SetThreadContext 3 IoCs

Processes:

611241.exe611241.exerundll32.exe

description	pid	process	target process
PID 3940 set thread context of 348	3940	611241.exe	611241.exe
PID 348 set thread context of 3028	348	611241.exe	Explorer.EXE
PID 2280 set thread context of 3028	2280	rundll32.exe	Explorer.EXE

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082

Suspicious behavior: EnumeratesProcesses 60 IoCs

Processes:

611241.exerundll32.exe

pid	process
348	611241.exe
348	611241.exe
348	611241.exe
348	611241.exe
2280	rundll32.exe
2280	rundll32.exe
2280	rundll32.exe
2280	rundll32.exe
2280	rundll32.exe
2280	rundll32.exe
2280	rundll32.exe
2280	rundll32.exe
2280	rundll32.exe
2280	rundll32.exe
2280	rundll32.exe
2280	rundll32.exe
2280	rundll32.exe
2280	rundll32.exe
2280	rundll32.exe
2280	rundll32.exe
2280	rundll32.exe
2280	rundll32.exe
2280	rundll32.exe
2280	rundll32.exe
2280	rundll32.exe
2280	rundll32.exe
2280	rundll32.exe
2280	rundll32.exe
2280	rundll32.exe
2280	rundll32.exe
2280	rundll32.exe
2280	rundll32.exe
2280	rundll32.exe
2280	rundll32.exe
2280	rundll32.exe
2280	rundll32.exe
2280	rundll32.exe
2280	rundll32.exe
2280	rundll32.exe
2280	rundll32.exe
2280	rundll32.exe
2280	rundll32.exe
2280	rundll32.exe
2280	rundll32.exe
2280	rundll32.exe
2280	rundll32.exe
2280	rundll32.exe
2280	rundll32.exe
2280	rundll32.exe
2280	rundll32.exe
2280	rundll32.exe
2280	rundll32.exe
2280	rundll32.exe
2280	rundll32.exe
2280	rundll32.exe
2280	rundll32.exe
2280	rundll32.exe
2280	rundll32.exe
2280	rundll32.exe
2280	rundll32.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

Explorer.EXE

pid process

3028 Explorer.EXE
Suspicious behavior: MapViewOfSection 5 IoCs

Processes:

611241.exerundll32.exe

pid process

348 611241.exe
348 611241.exe
348 611241.exe
2280 rundll32.exe
2280 rundll32.exe
Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

611241.exerundll32.exe

description pid process

Token: SeDebugPrivilege 348 611241.exe
Token: SeDebugPrivilege 2280 rundll32.exe

pid	process
3028	Explorer.EXE

description	pid	process
Token: SeDebugPrivilege	348	611241.exe
Token: SeDebugPrivilege	2280	rundll32.exe

Suspicious use of WriteProcessMemory 12 IoCs

Processes:

611241.exeExplorer.EXErundll32.exe

description	pid	process	target process
PID 3940 wrote to memory of 348	3940	611241.exe	611241.exe
PID 3940 wrote to memory of 348	3940	611241.exe	611241.exe
PID 3940 wrote to memory of 348	3940	611241.exe	611241.exe
PID 3940 wrote to memory of 348	3940	611241.exe	611241.exe
PID 3940 wrote to memory of 348	3940	611241.exe	611241.exe
PID 3940 wrote to memory of 348	3940	611241.exe	611241.exe
PID 3028 wrote to memory of 2280	3028	Explorer.EXE	rundll32.exe
PID 3028 wrote to memory of 2280	3028	Explorer.EXE	rundll32.exe
PID 3028 wrote to memory of 2280	3028	Explorer.EXE	rundll32.exe
PID 2280 wrote to memory of 680	2280	rundll32.exe	cmd.exe
PID 2280 wrote to memory of 680	2280	rundll32.exe	cmd.exe
PID 2280 wrote to memory of 680	2280	rundll32.exe	cmd.exe

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of WriteProcessMemory
PID:3028

C:\Users\Admin\AppData\Local\Temp\611241.exe
"C:\Users\Admin\AppData\Local\Temp\611241.exe"
2⤵
- Loads dropped DLL
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:3940

C:\Users\Admin\AppData\Local\Temp\611241.exe
"C:\Users\Admin\AppData\Local\Temp\611241.exe"
3⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
PID:348

C:\Windows\SysWOW64\autoconv.exe
"C:\Windows\SysWOW64\autoconv.exe"
2⤵
PID:3804

C:\Windows\SysWOW64\rundll32.exe
"C:\Windows\SysWOW64\rundll32.exe"
2⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2280

C:\Windows\SysWOW64\cmd.exe
/c del "C:\Users\Admin\AppData\Local\Temp\611241.exe"
3⤵
PID:680

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

1

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Replay Monitor

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Downloads

\Users\Admin\AppData\Local\Temp\nsbA1B0.tmp\evwdrgb.dll
MD5
8e8e71919bd6ead5d85b0428f7c5f32f

SHA1
ebc1ded2beed06f85980723b73cd60ea25d45a15

SHA256
4c319d43ad53c0e48628d8870a222d172873dd5b85546f5cdff64c4f4754ee5a

SHA512
f1d6dd2e89b8ed6f937d8ac815a9cb284384d356ad7c82572c241e39930a54551fcb3a6d4605169581e0aff3c1e692a9c2bbc4a263dbde6bc9b37682e74dba8d

Download Submit
memory/348-116-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/348-117-0x000000000041F150-mapping.dmp

Download
memory/348-120-0x00000000009E0000-0x00000000009F4000-memory.dmp

Filesize
80KB

Download
memory/348-119-0x0000000000BA0000-0x0000000000EC0000-memory.dmp

Filesize
3.1MB

Download
memory/680-125-0x0000000000000000-mapping.dmp

Download
memory/2280-122-0x0000000000000000-mapping.dmp

Download
memory/2280-123-0x0000000000080000-0x0000000000093000-memory.dmp

Filesize
76KB

Download
memory/2280-124-0x00000000024A0000-0x00000000024CF000-memory.dmp

Filesize
188KB

Download
memory/2280-126-0x0000000004200000-0x0000000004520000-memory.dmp

Filesize
3.1MB

Download
memory/2280-127-0x0000000004070000-0x0000000004103000-memory.dmp

Filesize
588KB

Download
memory/3028-121-0x0000000002730000-0x000000000280D000-memory.dmp

Filesize
884KB

Download
memory/3028-128-0x0000000004E20000-0x0000000004FAF000-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