formbook | 70dfd7bc81878d265e39803f73f55af96d7bf2a336408b52cc6005785fbe0415

General

Target

SHIPPING DOCUMENT.exe
Size

228KB
MD5

25e847b9631bc2fe8d87fe4278fa142e
SHA1

641756a84fdce68e101a53cfa6809b68190b7ad7
SHA256

70dfd7bc81878d265e39803f73f55af96d7bf2a336408b52cc6005785fbe0415
SHA512

82c1e56fa6a6611c45057c80190d2d7d220294a690044a164cdda39bc5e26b8c35d76433e3b1d7d247ef464d3307911a4a4337e52163177f4322fbe67579dabd

Score

10^/10

formbook rat spyware stealer trojan

Malware Config

Extracted

Family

formbook

Version

4.1

C2

http://www.knighttechinca.com/dxe/

Decoy

sardarfarm.com

959tremont.com

privat-livecam.net

ansel-homebakery.com

joysupermarket.com

peninsulamatchmakers.net

northsytyle.com

radioconexaoubermusic.com

relocatingrealtor.com

desyrnan.com

onlinehoortoestel.online

enpointe.online

rvvikings.com

paulpoirier.com

shitarpa.net

kerneis.net

rokitreach.com

essentiallygaia.com

prestiged.net

fuerzaagavera.com

Signatures

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

Formbook Payload 2 IoCs

rat

Processes:

resource	yara_rule
behavioral2/memory/3172-117-0x0000000000400000-0x000000000042E000-memory.dmp	formbook
behavioral2/memory/1236-124-0x0000000000EE0000-0x0000000000F0E000-memory.dmp	formbook

Loads dropped DLL 1 IoCs

Processes:

SHIPPING DOCUMENT.exe

pid process

364 SHIPPING DOCUMENT.exe

pid	process
364	SHIPPING DOCUMENT.exe

Suspicious use of SetThreadContext 3 IoCs

Processes:

SHIPPING DOCUMENT.exeSHIPPING DOCUMENT.exerundll32.exe

description	pid	process	target process
PID 364 set thread context of 3172	364	SHIPPING DOCUMENT.exe	SHIPPING DOCUMENT.exe
PID 3172 set thread context of 3020	3172	SHIPPING DOCUMENT.exe	Explorer.EXE
PID 1236 set thread context of 3020	1236	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:

SHIPPING DOCUMENT.exerundll32.exe

pid	process
3172	SHIPPING DOCUMENT.exe
3172	SHIPPING DOCUMENT.exe
3172	SHIPPING DOCUMENT.exe
3172	SHIPPING DOCUMENT.exe
1236	rundll32.exe
1236	rundll32.exe
1236	rundll32.exe
1236	rundll32.exe
1236	rundll32.exe
1236	rundll32.exe
1236	rundll32.exe
1236	rundll32.exe
1236	rundll32.exe
1236	rundll32.exe
1236	rundll32.exe
1236	rundll32.exe
1236	rundll32.exe
1236	rundll32.exe
1236	rundll32.exe
1236	rundll32.exe
1236	rundll32.exe
1236	rundll32.exe
1236	rundll32.exe
1236	rundll32.exe
1236	rundll32.exe
1236	rundll32.exe
1236	rundll32.exe
1236	rundll32.exe
1236	rundll32.exe
1236	rundll32.exe
1236	rundll32.exe
1236	rundll32.exe
1236	rundll32.exe
1236	rundll32.exe
1236	rundll32.exe
1236	rundll32.exe
1236	rundll32.exe
1236	rundll32.exe
1236	rundll32.exe
1236	rundll32.exe
1236	rundll32.exe
1236	rundll32.exe
1236	rundll32.exe
1236	rundll32.exe
1236	rundll32.exe
1236	rundll32.exe
1236	rundll32.exe
1236	rundll32.exe
1236	rundll32.exe
1236	rundll32.exe
1236	rundll32.exe
1236	rundll32.exe
1236	rundll32.exe
1236	rundll32.exe
1236	rundll32.exe
1236	rundll32.exe
1236	rundll32.exe
1236	rundll32.exe
1236	rundll32.exe
1236	rundll32.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

Explorer.EXE

pid process

3020 Explorer.EXE
Suspicious behavior: MapViewOfSection 6 IoCs

Processes:

SHIPPING DOCUMENT.exeSHIPPING DOCUMENT.exerundll32.exe

pid process

364 SHIPPING DOCUMENT.exe
3172 SHIPPING DOCUMENT.exe
3172 SHIPPING DOCUMENT.exe
3172 SHIPPING DOCUMENT.exe
1236 rundll32.exe
1236 rundll32.exe
Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

SHIPPING DOCUMENT.exerundll32.exe

description pid process

Token: SeDebugPrivilege 3172 SHIPPING DOCUMENT.exe
Token: SeDebugPrivilege 1236 rundll32.exe
Suspicious use of UnmapMainImage 1 IoCs

Processes:

Explorer.EXE

pid process

3020 Explorer.EXE

pid	process
3020	Explorer.EXE

pid	process
364	SHIPPING DOCUMENT.exe
3172	SHIPPING DOCUMENT.exe
3172	SHIPPING DOCUMENT.exe
3172	SHIPPING DOCUMENT.exe
1236	rundll32.exe
1236	rundll32.exe

description	pid	process
Token: SeDebugPrivilege	3172	SHIPPING DOCUMENT.exe
Token: SeDebugPrivilege	1236	rundll32.exe

pid	process
3020	Explorer.EXE

Suspicious use of WriteProcessMemory 10 IoCs

Processes:

SHIPPING DOCUMENT.exeExplorer.EXErundll32.exe

description	pid	process	target process
PID 364 wrote to memory of 3172	364	SHIPPING DOCUMENT.exe	SHIPPING DOCUMENT.exe
PID 364 wrote to memory of 3172	364	SHIPPING DOCUMENT.exe	SHIPPING DOCUMENT.exe
PID 364 wrote to memory of 3172	364	SHIPPING DOCUMENT.exe	SHIPPING DOCUMENT.exe
PID 364 wrote to memory of 3172	364	SHIPPING DOCUMENT.exe	SHIPPING DOCUMENT.exe
PID 3020 wrote to memory of 1236	3020	Explorer.EXE	rundll32.exe
PID 3020 wrote to memory of 1236	3020	Explorer.EXE	rundll32.exe
PID 3020 wrote to memory of 1236	3020	Explorer.EXE	rundll32.exe
PID 1236 wrote to memory of 3472	1236	rundll32.exe	cmd.exe
PID 1236 wrote to memory of 3472	1236	rundll32.exe	cmd.exe
PID 1236 wrote to memory of 3472	1236	rundll32.exe	cmd.exe

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of UnmapMainImage
- Suspicious use of WriteProcessMemory
PID:3020

C:\Users\Admin\AppData\Local\Temp\SHIPPING DOCUMENT.exe
"C:\Users\Admin\AppData\Local\Temp\SHIPPING DOCUMENT.exe"
2⤵
- Loads dropped DLL
- Suspicious use of SetThreadContext
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
PID:364

C:\Users\Admin\AppData\Local\Temp\SHIPPING DOCUMENT.exe
"C:\Users\Admin\AppData\Local\Temp\SHIPPING DOCUMENT.exe"
3⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
PID:3172

C:\Windows\SysWOW64\autoconv.exe
"C:\Windows\SysWOW64\autoconv.exe"
2⤵
PID:632

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:1236

C:\Windows\SysWOW64\cmd.exe
/c del "C:\Users\Admin\AppData\Local\Temp\SHIPPING DOCUMENT.exe"
3⤵
PID:3472

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

Loading Replay Monitor...

Downloads

\Users\Admin\AppData\Local\Temp\nsr64FB.tmp\2x6gdfzk.dll
MD5
45adfa33a0e6a780e55f543a36143542

SHA1
540bbbf9ec26ddef911ba80ee0365cf23b687749

SHA256
5299a5c9ba1296db0a9f804741b58ec7a0fedaef8937e3cdc21d3523e0449ee3

SHA512
2ad608026d78dedd9f803b6a2f7e27e5590d9df5870adeccbdfc353b1d546450075743b499ebcf57f8d67886188db92ba8f968b4d71fed624fd948d3b047a0e3

Download Submit
memory/364-116-0x0000000000AB0000-0x0000000000AD3000-memory.dmp

Filesize
140KB

Download
memory/1236-123-0x0000000000F10000-0x0000000000F23000-memory.dmp

Filesize
76KB

Download
memory/1236-121-0x0000000000000000-mapping.dmp

Download
memory/1236-124-0x0000000000EE0000-0x0000000000F0E000-memory.dmp

Filesize
184KB

Download
memory/1236-125-0x0000000004EE0000-0x0000000005200000-memory.dmp

Filesize
3.1MB

Download
memory/1236-126-0x0000000004D70000-0x0000000004E03000-memory.dmp

Filesize
588KB

Download
memory/3020-120-0x0000000005760000-0x00000000058B5000-memory.dmp

Filesize
1.3MB

Download
memory/3020-127-0x0000000003090000-0x000000000312C000-memory.dmp

Filesize
624KB

Download
memory/3172-117-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download
memory/3172-118-0x0000000000A10000-0x0000000000D30000-memory.dmp

Filesize
3.1MB

Download
memory/3172-119-0x00000000009D0000-0x00000000009E4000-memory.dmp

Filesize
80KB

Download
memory/3172-115-0x000000000041EAF0-mapping.dmp

Download
memory/3472-122-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

Replay Monitor

Loading Replay Monitor...

Downloads