formbook | 7b6d4e90afc1063245c198d1333509bac7241f939692cb4110897003994c9e2c

Analysis

max time kernel
25s
platform
windows7_x64
resource
win7-20220812-en
resource tags

arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
submitted
06/09/2022, 18:17

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General

Target

s.exe
Size

185KB
MD5

891152fdc4a9c641e0cf335d289cb83b
SHA1

ba22879cc40bc3e561dda82800724e3de91d0f55
SHA256

7b6d4e90afc1063245c198d1333509bac7241f939692cb4110897003994c9e2c
SHA512

2751b0aa82369ecc377a2aaba62f243978d8486b282e89d0ab302ad2bf83a7f8ecac50c99491c7f77d1fc11a70ff50a10f519e6d9f0f2818f8a604821dcd5420
SSDEEP

3072:bTXEayzutz03V6DmMnpN0uWK7yXeBuX+u7bL1Knk11Ua:DRaVszpN0uWtXeBcp/Lcza

Score

10^/10

formbook j02y rat spyware stealer trojan

Malware Config

Extracted

Family

formbook

Version

4.1

Campaign

j02y

Decoy

toplinkstorage.app

danny-mickey.space

0755aite.net

okchurch.info

4tlracing.com

jacksoncafepaola.com

552northvictoria.com

eevakoskela.info

tradecontractortraining.com

abtbank.online

voicetall.com

chicken-shack.com

acmumzo.info

futureclosers.com

bctugala.com

adagihlina.xyz

emprendeahora.pro

bybala.com

hlcp5533.com

ingspira.com

Signatures

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

Formbook payload 2 IoCs

rat

resource	yara_rule
behavioral1/memory/1664-61-0x0000000000070000-0x000000000009F000-memory.dmp	formbook
behavioral1/memory/1664-64-0x0000000000070000-0x000000000009F000-memory.dmp	formbook

Deletes itself 1 IoCs

pid	Process
1936	cmd.exe

Suspicious use of SetThreadContext 2 IoCs

description	pid	Process	procid_target
PID 1504 set thread context of 1376	1504	s.exe	16
PID 1664 set thread context of 1376	1664	cscript.exe	16

Suspicious behavior: EnumeratesProcesses 6 IoCs

pid	Process
1504	s.exe
1504	s.exe
1664	cscript.exe
1664	cscript.exe
1664	cscript.exe
1664	cscript.exe

Suspicious behavior: MapViewOfSection 5 IoCs

pid	Process
1504	s.exe
1504	s.exe
1504	s.exe
1664	cscript.exe
1664	cscript.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	1504	s.exe
Token: SeDebugPrivilege	1664	cscript.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 1376 wrote to memory of 1664	1376	Explorer.EXE	28
PID 1376 wrote to memory of 1664	1376	Explorer.EXE	28
PID 1376 wrote to memory of 1664	1376	Explorer.EXE	28
PID 1376 wrote to memory of 1664	1376	Explorer.EXE	28
PID 1664 wrote to memory of 1936	1664	cscript.exe	29
PID 1664 wrote to memory of 1936	1664	cscript.exe	29
PID 1664 wrote to memory of 1936	1664	cscript.exe	29
PID 1664 wrote to memory of 1936	1664	cscript.exe	29

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of WriteProcessMemory
PID:1376
- C:\Users\Admin\AppData\Local\Temp\s.exe
  "C:\Users\Admin\AppData\Local\Temp\s.exe"
  2⤵
  - Suspicious use of SetThreadContext
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious behavior: MapViewOfSection
  - Suspicious use of AdjustPrivilegeToken
  PID:1504
- C:\Windows\SysWOW64\cscript.exe
  "C:\Windows\SysWOW64\cscript.exe"
  2⤵
  - Suspicious use of SetThreadContext
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious behavior: MapViewOfSection
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:1664
- - C:\Windows\SysWOW64\cmd.exe
    /c del "C:\Users\Admin\AppData\Local\Temp\s.exe"
    3⤵
    - Deletes itself
    PID:1936

Network

MITRE ATT&CK Matrix

Replay Monitor

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Downloads

memory/1376-56-0x0000000006C90000-0x0000000006DE9000-memory.dmp

Filesize
1.3MB

Download
memory/1376-63-0x0000000004A50000-0x0000000004B39000-memory.dmp

Filesize
932KB

Download
memory/1504-54-0x0000000000770000-0x0000000000A73000-memory.dmp

Filesize
3.0MB

Download
memory/1504-55-0x00000000001C0000-0x00000000001D5000-memory.dmp

Filesize
84KB

Download
memory/1664-60-0x0000000002080000-0x0000000002383000-memory.dmp

Filesize
3.0MB

Download
memory/1664-59-0x0000000000980000-0x00000000009A2000-memory.dmp

Filesize
136KB

Download
memory/1664-61-0x0000000000070000-0x000000000009F000-memory.dmp

Filesize
188KB

Download
memory/1664-62-0x0000000001DB0000-0x0000000001E44000-memory.dmp

Filesize
592KB

Download
memory/1664-64-0x0000000000070000-0x000000000009F000-memory.dmp

Filesize
188KB

Download