formbook | 5aac852c4f4d5626dae1b8412fc965cc50e349389cadfd512b0f641dbef21b93

Analysis

max time kernel
152s
max time network
167s
platform
windows10-2004_x64
resource
win10v2004-20231215-en
resource tags

arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
submitted
29/12/2023, 20:54

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General

Target

03be8348a96b6dfd7f9e2e9cf774158a.exe
Size

1.3MB
MD5

03be8348a96b6dfd7f9e2e9cf774158a
SHA1

36001e5d587b70f594a38c0d45bb9e17d210f697
SHA256

5aac852c4f4d5626dae1b8412fc965cc50e349389cadfd512b0f641dbef21b93
SHA512

b11fcf14a4e9b31397156c509afcb9f28c307a6de89e640c574d5848c14e2e46de7fd7c516e558e991b2ded125f4e80171a49e359d7ddfe5bcbffe00319582db
SSDEEP

24576:4fOsBgo0q4wMXBmCmTOUd+L6k1XWaIboHqPU7JFFaBczogDdK:4WoHMRmCm6Ud+z1X3YoHqs7JFQcLd

Score

10^/10

formbook u6ep rat spyware stealer trojan

Malware Config

Extracted

Family

formbook

Version

4.1

Campaign

u6ep

Decoy

kristinaandmatt2021.com

ankergreen.com

portaldoinvocador.com

artisticdancecompanyct.com

clarkson-craik-wedding.com

ourparentsaspartners.net

insuranceservicesfl.com

erxia29.com

thelogicsticks.com

silversteel-ye.com

risingstrenghtscounseling.com

psm-gen.com

katsworlds.com

manayi-matnayen.com

itsgrind30.com

punebites.com

dwkjkvsa.icu

gallucciowineries.com

rogerzhou.com

teamwork256.com

Signatures

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

CustAttr .NET packer 1 IoCs

Detects CustAttr .NET packer in memory.

resource	yara_rule
behavioral2/memory/3684-8-0x0000000005970000-0x0000000005982000-memory.dmp	CustAttr

Formbook payload 1 IoCs

rat

resource	yara_rule
behavioral2/memory/4432-13-0x0000000000400000-0x000000000042E000-memory.dmp	formbook

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 3684 set thread context of 4432	3684	03be8348a96b6dfd7f9e2e9cf774158a.exe	107

Suspicious behavior: EnumeratesProcesses 3 IoCs

pid	Process
4432	03be8348a96b6dfd7f9e2e9cf774158a.exe
4432	03be8348a96b6dfd7f9e2e9cf774158a.exe
4432	03be8348a96b6dfd7f9e2e9cf774158a.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 3684 wrote to memory of 4432	3684	03be8348a96b6dfd7f9e2e9cf774158a.exe	107
PID 3684 wrote to memory of 4432	3684	03be8348a96b6dfd7f9e2e9cf774158a.exe	107
PID 3684 wrote to memory of 4432	3684	03be8348a96b6dfd7f9e2e9cf774158a.exe	107
PID 3684 wrote to memory of 4432	3684	03be8348a96b6dfd7f9e2e9cf774158a.exe	107
PID 3684 wrote to memory of 4432	3684	03be8348a96b6dfd7f9e2e9cf774158a.exe	107
PID 3684 wrote to memory of 4432	3684	03be8348a96b6dfd7f9e2e9cf774158a.exe	107

C:\Users\Admin\AppData\Local\Temp\03be8348a96b6dfd7f9e2e9cf774158a.exe
"C:\Users\Admin\AppData\Local\Temp\03be8348a96b6dfd7f9e2e9cf774158a.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:3684
- C:\Users\Admin\AppData\Local\Temp\03be8348a96b6dfd7f9e2e9cf774158a.exe
  "C:\Users\Admin\AppData\Local\Temp\03be8348a96b6dfd7f9e2e9cf774158a.exe"
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  PID:4432

Network

MITRE ATT&CK Matrix

Replay Monitor

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Downloads

memory/3684-8-0x0000000005970000-0x0000000005982000-memory.dmp

Filesize
72KB

Download
memory/3684-9-0x0000000074DB0000-0x0000000075560000-memory.dmp

Filesize
7.7MB

Download
memory/3684-2-0x00000000052B0000-0x000000000534C000-memory.dmp

Filesize
624KB

Download
memory/3684-3-0x0000000005980000-0x0000000005F24000-memory.dmp

Filesize
5.6MB

Download
memory/3684-4-0x00000000053D0000-0x0000000005462000-memory.dmp

Filesize
584KB

Download
memory/3684-5-0x00000000055F0000-0x0000000005600000-memory.dmp

Filesize
64KB

Download
memory/3684-7-0x0000000005560000-0x00000000055B6000-memory.dmp

Filesize
344KB

Download
memory/3684-6-0x0000000005350000-0x000000000535A000-memory.dmp

Filesize
40KB

Download
memory/3684-1-0x0000000000770000-0x00000000008B6000-memory.dmp

Filesize
1.3MB

Download
memory/3684-10-0x00000000055F0000-0x0000000005600000-memory.dmp

Filesize
64KB

Download
memory/3684-0-0x0000000074DB0000-0x0000000075560000-memory.dmp

Filesize
7.7MB

Download
memory/3684-11-0x0000000006E00000-0x0000000006E82000-memory.dmp

Filesize
520KB

Download
memory/3684-12-0x0000000006E80000-0x0000000006EBA000-memory.dmp

Filesize
232KB

Download
memory/3684-15-0x0000000074DB0000-0x0000000075560000-memory.dmp

Filesize
7.7MB

Download
memory/4432-13-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download
memory/4432-16-0x00000000016A0000-0x00000000019EA000-memory.dmp

Filesize
3.3MB

Download
memory/4432-17-0x00000000016A0000-0x00000000019EA000-memory.dmp

Filesize
3.3MB

Download