formbook | f641f1a87ee2a760b79417b410c52137c114e2618529bb90a0f281967975476e

General

Target

tmp.exe
Size

605KB
MD5

cb62322bf94c2372c0c4c0383f3c2a23
SHA1

7b628d08dde66fe82002c908a1cdca11db5d54ed
SHA256

f641f1a87ee2a760b79417b410c52137c114e2618529bb90a0f281967975476e
SHA512

8a43cc7a3d2f6ebd5bd3bddc6577d435ac421697a3a8ca34074a29bdc716b589e87684e1cc5ae8d1007ef22e69e72cb0393c45c2f9f681fee3e0a7acec7f4237
SSDEEP

12288:FYmXlA7G3NFi0b7BMAsSMMT6sOhOIbw9SopRGdovnyo6VNglbXT:F5aS9Fi0b7BPl569I4p4G6vn32SbXT

Score

10^/10

formbook tf6p rat spyware stealer trojan

Malware Config

Extracted

Family

formbook

Version

4.1

Campaign

tf6p

Decoy

poolcleanerskingsland.com

nieveslandscapee.com

wb263.com

smartlubetrading.com

linuowen.com

fna-seattle.com

jobgenie-ai.com

mycocktailmind.com

openai-invite.com

tnndjf5kyxz.com

mclane.attorney

somwear.xyz

spliffstudios.com

grupofaace.com

wuuwo.com

bigtimerushcharlotte.com

yourercchecks.com

arportablepottyrentals.biz

sbtsanantonio.com

explantationsbegleitung.com

Signatures

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

Formbook payload 4 IoCs

rat

resource	yara_rule
behavioral2/memory/3612-140-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral2/memory/3612-147-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral2/memory/1636-149-0x0000000000510000-0x000000000053F000-memory.dmp	formbook
behavioral2/memory/1636-151-0x0000000000510000-0x000000000053F000-memory.dmp	formbook

Blocklisted process makes network request 1 IoCs

flow	pid	Process
58	1636	cmstp.exe

Suspicious use of SetThreadContext 3 IoCs

description	pid	Process	procid_target
PID 3588 set thread context of 3612	3588	tmp.exe	85
PID 3612 set thread context of 3160	3612	tmp.exe	43
PID 1636 set thread context of 3160	1636	cmstp.exe	43

Suspicious behavior: EnumeratesProcesses 42 IoCs

pid	Process
3612	tmp.exe
3612	tmp.exe
3612	tmp.exe
3612	tmp.exe
1636	cmstp.exe
1636	cmstp.exe
1636	cmstp.exe
1636	cmstp.exe
1636	cmstp.exe
1636	cmstp.exe
1636	cmstp.exe
1636	cmstp.exe
1636	cmstp.exe
1636	cmstp.exe
1636	cmstp.exe
1636	cmstp.exe
1636	cmstp.exe
1636	cmstp.exe
1636	cmstp.exe
1636	cmstp.exe
1636	cmstp.exe
1636	cmstp.exe
1636	cmstp.exe
1636	cmstp.exe
1636	cmstp.exe
1636	cmstp.exe
1636	cmstp.exe
1636	cmstp.exe
1636	cmstp.exe
1636	cmstp.exe
1636	cmstp.exe
1636	cmstp.exe
1636	cmstp.exe
1636	cmstp.exe
1636	cmstp.exe
1636	cmstp.exe
1636	cmstp.exe
1636	cmstp.exe
1636	cmstp.exe
1636	cmstp.exe
1636	cmstp.exe
1636	cmstp.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
3160	Explorer.EXE

Suspicious behavior: MapViewOfSection 5 IoCs

pid	Process
3612	tmp.exe
3612	tmp.exe
3612	tmp.exe
1636	cmstp.exe
1636	cmstp.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	3612	tmp.exe
Token: SeDebugPrivilege	1636	cmstp.exe

Suspicious use of WriteProcessMemory 12 IoCs

description	pid	Process	procid_target
PID 3588 wrote to memory of 3612	3588	tmp.exe	85
PID 3588 wrote to memory of 3612	3588	tmp.exe	85
PID 3588 wrote to memory of 3612	3588	tmp.exe	85
PID 3588 wrote to memory of 3612	3588	tmp.exe	85
PID 3588 wrote to memory of 3612	3588	tmp.exe	85
PID 3588 wrote to memory of 3612	3588	tmp.exe	85
PID 3160 wrote to memory of 1636	3160	Explorer.EXE	86
PID 3160 wrote to memory of 1636	3160	Explorer.EXE	86
PID 3160 wrote to memory of 1636	3160	Explorer.EXE	86
PID 1636 wrote to memory of 4996	1636	cmstp.exe	87
PID 1636 wrote to memory of 4996	1636	cmstp.exe	87
PID 1636 wrote to memory of 4996	1636	cmstp.exe	87

C:\Users\Admin\AppData\Local\Temp\tmp.exe
"C:\Users\Admin\AppData\Local\Temp\tmp.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:3588
- C:\Users\Admin\AppData\Local\Temp\tmp.exe
  "C:\Users\Admin\AppData\Local\Temp\tmp.exe"
  2⤵
  - Suspicious use of SetThreadContext
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious behavior: MapViewOfSection
  - Suspicious use of AdjustPrivilegeToken
  PID:3612

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of WriteProcessMemory
PID:3160
- C:\Windows\SysWOW64\cmstp.exe
  "C:\Windows\SysWOW64\cmstp.exe"
  2⤵
  - Blocklisted process makes network request
  - Suspicious use of SetThreadContext
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious behavior: MapViewOfSection
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:1636
- - C:\Windows\SysWOW64\cmd.exe
    /c del "C:\Users\Admin\AppData\Local\Temp\tmp.exe"
    3⤵
    PID:4996

Network

MITRE ATT&CK Matrix

Replay Monitor

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Downloads

memory/1636-146-0x0000000000C10000-0x0000000000C26000-memory.dmp

Filesize
88KB

Download
memory/1636-153-0x0000000002560000-0x00000000025F3000-memory.dmp

Filesize
588KB

Download
memory/1636-151-0x0000000000510000-0x000000000053F000-memory.dmp

Filesize
188KB

Download
memory/1636-150-0x0000000002770000-0x0000000002ABA000-memory.dmp

Filesize
3.3MB

Download
memory/1636-149-0x0000000000510000-0x000000000053F000-memory.dmp

Filesize
188KB

Download
memory/1636-148-0x0000000000C10000-0x0000000000C26000-memory.dmp

Filesize
88KB

Download
memory/3160-145-0x0000000008DE0000-0x0000000008F2D000-memory.dmp

Filesize
1.3MB

Download
memory/3160-154-0x00000000092F0000-0x0000000009414000-memory.dmp

Filesize
1.1MB

Download
memory/3160-157-0x00000000092F0000-0x0000000009414000-memory.dmp

Filesize
1.1MB

Download
memory/3160-155-0x00000000092F0000-0x0000000009414000-memory.dmp

Filesize
1.1MB

Download
memory/3588-138-0x0000000005640000-0x0000000005650000-memory.dmp

Filesize
64KB

Download
memory/3588-139-0x00000000089D0000-0x0000000008A6C000-memory.dmp

Filesize
624KB

Download
memory/3588-137-0x0000000005640000-0x0000000005650000-memory.dmp

Filesize
64KB

Download
memory/3588-136-0x00000000054C0000-0x00000000054CA000-memory.dmp

Filesize
40KB

Download
memory/3588-135-0x00000000054D0000-0x0000000005562000-memory.dmp

Filesize
584KB

Download
memory/3588-134-0x00000000059E0000-0x0000000005F84000-memory.dmp

Filesize
5.6MB

Download
memory/3588-133-0x0000000000A50000-0x0000000000AEE000-memory.dmp

Filesize
632KB

Download
memory/3612-147-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/3612-140-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/3612-144-0x0000000000EC0000-0x0000000000ED4000-memory.dmp

Filesize
80KB

Download
memory/3612-143-0x0000000000FC0000-0x000000000130A000-memory.dmp

Filesize
3.3MB

Download

Analysis

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