formbook | 21ccf1fad3e1a08f580d5f0d5aa2d13fb1a633aa1c68100d435628a437efb89b

Analysis

max time kernel
149s
max time network
149s
platform
windows10-2004_x64
resource
win10v2004-20230824-en
resource tags

arch:x64arch:x86image:win10v2004-20230824-enlocale:en-usos:windows10-2004-x64system
submitted
28/08/2023, 10:18

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General

Target

Payment Confirmation REF No 016747 PDF.exe
Size

253KB
MD5

321ac4a7c104daae261c6ce5ed12db5a
SHA1

2cf6f37db30b5bdd5b3ae338a4e209c9ccd0f984
SHA256

21ccf1fad3e1a08f580d5f0d5aa2d13fb1a633aa1c68100d435628a437efb89b
SHA512

35591b1d584daeda8d6997224c6b3edb666f8cb8b7a77950f7411ef6bf030d40b8308168500a12d7f8c503113ba0e870abed8192807f679cfd90a317cf9f03d7
SSDEEP

6144:PYa64mTIQqcpm2VNUmdzdr4AiO0iijUg0SkuMPnGKY6X:PYOmTtrVjd2liijUg0tuMeJ0

Score

10^/10

formbook sn26 rat spyware stealer trojan

Malware Config

Extracted

Family

formbook

Version

4.1

Campaign

sn26

Decoy

resenha10.bet

gulshan-rajput.com

xbus.tech

z813my.cfd

wlxzjlny.cfd

auntengotiempo.com

canada-reservation.com

thegiftcompany.shop

esthersilveirapropiedades.com

1wapws.top

ymjblnvo.cfd

termokimik.net

kushiro-artist-school.com

bmmboo.com

caceresconstructionservices.com

kentuckywalkabout.com

bringyourcart.com

miamiwinetour.com

bobcatsocial.site

thirdmind.network

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/4472-7-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral2/memory/4472-10-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral2/memory/3388-18-0x00000000003B0000-0x00000000003DF000-memory.dmp	formbook
behavioral2/memory/3388-21-0x00000000003B0000-0x00000000003DF000-memory.dmp	formbook

Blocklisted process makes network request 1 IoCs

flow	pid	Process
15	3388	cmd.exe

Loads dropped DLL 1 IoCs

pid	Process
4812	Payment Confirmation REF No 016747 PDF.exe

Suspicious use of SetThreadContext 3 IoCs

description	pid	Process	procid_target
PID 4812 set thread context of 4472	4812	Payment Confirmation REF No 016747 PDF.exe	85
PID 4472 set thread context of 760	4472	Payment Confirmation REF No 016747 PDF.exe	64
PID 3388 set thread context of 760	3388	cmd.exe	64

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

System Information Discovery
T1082

Suspicious behavior: EnumeratesProcesses 58 IoCs

pid	Process
4472	Payment Confirmation REF No 016747 PDF.exe
4472	Payment Confirmation REF No 016747 PDF.exe
4472	Payment Confirmation REF No 016747 PDF.exe
4472	Payment Confirmation REF No 016747 PDF.exe
3388	cmd.exe
3388	cmd.exe
3388	cmd.exe
3388	cmd.exe
3388	cmd.exe
3388	cmd.exe
3388	cmd.exe
3388	cmd.exe
3388	cmd.exe
3388	cmd.exe
3388	cmd.exe
3388	cmd.exe
3388	cmd.exe
3388	cmd.exe
3388	cmd.exe
3388	cmd.exe
3388	cmd.exe
3388	cmd.exe
3388	cmd.exe
3388	cmd.exe
3388	cmd.exe
3388	cmd.exe
3388	cmd.exe
3388	cmd.exe
3388	cmd.exe
3388	cmd.exe
3388	cmd.exe
3388	cmd.exe
3388	cmd.exe
3388	cmd.exe
3388	cmd.exe
3388	cmd.exe
3388	cmd.exe
3388	cmd.exe
3388	cmd.exe
3388	cmd.exe
3388	cmd.exe
3388	cmd.exe
3388	cmd.exe
3388	cmd.exe
3388	cmd.exe
3388	cmd.exe
3388	cmd.exe
3388	cmd.exe
3388	cmd.exe
3388	cmd.exe
3388	cmd.exe
3388	cmd.exe
3388	cmd.exe
3388	cmd.exe
3388	cmd.exe
3388	cmd.exe
3388	cmd.exe
3388	cmd.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
760	Explorer.EXE

Suspicious behavior: MapViewOfSection 6 IoCs

pid	Process
4812	Payment Confirmation REF No 016747 PDF.exe
4472	Payment Confirmation REF No 016747 PDF.exe
4472	Payment Confirmation REF No 016747 PDF.exe
4472	Payment Confirmation REF No 016747 PDF.exe
3388	cmd.exe
3388	cmd.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	4472	Payment Confirmation REF No 016747 PDF.exe
Token: SeDebugPrivilege	3388	cmd.exe

Suspicious use of UnmapMainImage 1 IoCs

pid	Process
760	Explorer.EXE

Suspicious use of WriteProcessMemory 10 IoCs

description	pid	Process	procid_target
PID 4812 wrote to memory of 4472	4812	Payment Confirmation REF No 016747 PDF.exe	85
PID 4812 wrote to memory of 4472	4812	Payment Confirmation REF No 016747 PDF.exe	85
PID 4812 wrote to memory of 4472	4812	Payment Confirmation REF No 016747 PDF.exe	85
PID 4812 wrote to memory of 4472	4812	Payment Confirmation REF No 016747 PDF.exe	85
PID 760 wrote to memory of 3388	760	Explorer.EXE	86
PID 760 wrote to memory of 3388	760	Explorer.EXE	86
PID 760 wrote to memory of 3388	760	Explorer.EXE	86
PID 3388 wrote to memory of 4160	3388	cmd.exe	87
PID 3388 wrote to memory of 4160	3388	cmd.exe	87
PID 3388 wrote to memory of 4160	3388	cmd.exe	87

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of UnmapMainImage
- Suspicious use of WriteProcessMemory
PID:760
- C:\Users\Admin\AppData\Local\Temp\Payment Confirmation REF No 016747 PDF.exe
  "C:\Users\Admin\AppData\Local\Temp\Payment Confirmation REF No 016747 PDF.exe"
  2⤵
  - Loads dropped DLL
  - Suspicious use of SetThreadContext
  - Suspicious behavior: MapViewOfSection
  - Suspicious use of WriteProcessMemory
  PID:4812
- - C:\Users\Admin\AppData\Local\Temp\Payment Confirmation REF No 016747 PDF.exe
    "C:\Users\Admin\AppData\Local\Temp\Payment Confirmation REF No 016747 PDF.exe"
    3⤵
    - Suspicious use of SetThreadContext
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious behavior: MapViewOfSection
    - Suspicious use of AdjustPrivilegeToken
    PID:4472
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\SysWOW64\cmd.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:3388
- - C:\Windows\SysWOW64\cmd.exe
    /c del "C:\Users\Admin\AppData\Local\Temp\Payment Confirmation REF No 016747 PDF.exe"
    3⤵
    PID:4160

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\nstC8.tmp\qphtlw.dll

Filesize
47KB

MD5
7147f5a82ce4e5d4c0ac9ef31a61e685

SHA1
20a630132308c935238826f98cbebc7754ff6474

SHA256
5e1e79b104e41442160e3e95286e66e5bc60eb04a297cff540c28de26a4d7e7b

SHA512
31c6473115bef34848de7ec961d9550a86a02f263504ae7c20e7487e5a052c30708b6295f86bd630f894a05a4f14dd4c26667686dfaf9dbf666c7cfa55435304

Download Submit
memory/760-12-0x0000000008670000-0x00000000087EF000-memory.dmp

Filesize
1.5MB

Download
memory/760-27-0x00000000091B0000-0x00000000092BA000-memory.dmp

Filesize
1.0MB

Download
memory/760-25-0x00000000091B0000-0x00000000092BA000-memory.dmp

Filesize
1.0MB

Download
memory/760-24-0x00000000091B0000-0x00000000092BA000-memory.dmp

Filesize
1.0MB

Download
memory/760-20-0x0000000008670000-0x00000000087EF000-memory.dmp

Filesize
1.5MB

Download
memory/3388-21-0x00000000003B0000-0x00000000003DF000-memory.dmp

Filesize
188KB

Download
memory/3388-14-0x0000000000330000-0x000000000038A000-memory.dmp

Filesize
360KB

Download
memory/3388-17-0x0000000000330000-0x000000000038A000-memory.dmp

Filesize
360KB

Download
memory/3388-18-0x00000000003B0000-0x00000000003DF000-memory.dmp

Filesize
188KB

Download
memory/3388-19-0x0000000000EF0000-0x000000000123A000-memory.dmp

Filesize
3.3MB

Download
memory/3388-23-0x0000000000D30000-0x0000000000DC4000-memory.dmp

Filesize
592KB

Download
memory/4472-11-0x0000000000A10000-0x0000000000A25000-memory.dmp

Filesize
84KB

Download
memory/4472-10-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/4472-8-0x0000000000A90000-0x0000000000DDA000-memory.dmp

Filesize
3.3MB

Download
memory/4472-7-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/4812-6-0x0000000002250000-0x0000000002252000-memory.dmp

Filesize
8KB

Download