formbook | 3c4aa39e200cb4303a3e5970bbedb5a1bb1baa656c3fc2286f82392a91e4a4ea

Analysis

max time kernel
148s
max time network
150s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
07/01/2025, 14:50

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General

Target

JaffaCakes118_6923309c1cf759930f67710ac9dfd328.exe
Size

511KB
MD5

6923309c1cf759930f67710ac9dfd328
SHA1

e74291e311e8466dd7222a2eb3779848385dd3fa
SHA256

3c4aa39e200cb4303a3e5970bbedb5a1bb1baa656c3fc2286f82392a91e4a4ea
SHA512

993dbcc6063f3a1b293fb3e2c794f1f817a4703d5b21154fc47e02998f72e334cca38b820c6f657a8345775690eed93f2a8f9202b453490735bc89cebf3ecbd5
SSDEEP

12288:JGk9RQVXaahBaUi2iNIYI864BI94c9Yr+tJXktSljS:JtRQMahAUi1u/864u4cWit7g

Score

10^/10

formbook kzk9 discovery rat spyware stealer trojan

Malware Config

Extracted

Family

formbook

Version

4.1

Campaign

kzk9

Decoy

tianconghuo.club

1996-page.com

ourtownmax.net

conservativetreehose.com

synth.repair

donnachicacreperia.com

tentfull.com

weapp.download

surfersink.com

gattlebusinessservices.com

sebastian249.com

anhphuc.company

betternatureproducts.net

defroplate.com

seattlesquidsquad.com

polarjob.com

lendingadvantage.com

angelsondope.com

goportjitney.com

tiendagrupojagr.com

Signatures

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

Formbook payload 1 IoCs

rat

resource	yara_rule
behavioral2/memory/4264-11-0x0000000000400000-0x000000000042E000-memory.dmp	formbook

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2372 set thread context of 4264	2372	JaffaCakes118_6923309c1cf759930f67710ac9dfd328.exe	91

System Location Discovery: System Language Discovery 1 TTPs 1 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_6923309c1cf759930f67710ac9dfd328.exe

Suspicious behavior: EnumeratesProcesses 8 IoCs

pid	Process
2372	JaffaCakes118_6923309c1cf759930f67710ac9dfd328.exe
2372	JaffaCakes118_6923309c1cf759930f67710ac9dfd328.exe
2372	JaffaCakes118_6923309c1cf759930f67710ac9dfd328.exe
2372	JaffaCakes118_6923309c1cf759930f67710ac9dfd328.exe
2372	JaffaCakes118_6923309c1cf759930f67710ac9dfd328.exe
2372	JaffaCakes118_6923309c1cf759930f67710ac9dfd328.exe
4264	JaffaCakes118_6923309c1cf759930f67710ac9dfd328.exe
4264	JaffaCakes118_6923309c1cf759930f67710ac9dfd328.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2372	JaffaCakes118_6923309c1cf759930f67710ac9dfd328.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 2372 wrote to memory of 4264	2372	JaffaCakes118_6923309c1cf759930f67710ac9dfd328.exe	91
PID 2372 wrote to memory of 4264	2372	JaffaCakes118_6923309c1cf759930f67710ac9dfd328.exe	91
PID 2372 wrote to memory of 4264	2372	JaffaCakes118_6923309c1cf759930f67710ac9dfd328.exe	91
PID 2372 wrote to memory of 4264	2372	JaffaCakes118_6923309c1cf759930f67710ac9dfd328.exe	91
PID 2372 wrote to memory of 4264	2372	JaffaCakes118_6923309c1cf759930f67710ac9dfd328.exe	91
PID 2372 wrote to memory of 4264	2372	JaffaCakes118_6923309c1cf759930f67710ac9dfd328.exe	91

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_6923309c1cf759930f67710ac9dfd328.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_6923309c1cf759930f67710ac9dfd328.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2372
- C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_6923309c1cf759930f67710ac9dfd328.exe
  "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_6923309c1cf759930f67710ac9dfd328.exe"
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  PID:4264

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

memory/2372-6-0x0000000007490000-0x000000000749E000-memory.dmp

Filesize
56KB

Download
memory/2372-13-0x00000000748E0000-0x0000000075090000-memory.dmp

Filesize
7.7MB

Download
memory/2372-2-0x0000000007810000-0x0000000007DB4000-memory.dmp

Filesize
5.6MB

Download
memory/2372-3-0x0000000007300000-0x0000000007392000-memory.dmp

Filesize
584KB

Download
memory/2372-4-0x00000000026E0000-0x00000000026EA000-memory.dmp

Filesize
40KB

Download
memory/2372-5-0x00000000748E0000-0x0000000075090000-memory.dmp

Filesize
7.7MB

Download
memory/2372-8-0x00000000748E0000-0x0000000075090000-memory.dmp

Filesize
7.7MB

Download
memory/2372-0-0x00000000748EE000-0x00000000748EF000-memory.dmp

Filesize
4KB

Download
memory/2372-1-0x00000000004F0000-0x0000000000576000-memory.dmp

Filesize
536KB

Download
memory/2372-9-0x0000000007F60000-0x0000000007FFC000-memory.dmp

Filesize
624KB

Download
memory/2372-10-0x0000000008100000-0x0000000008156000-memory.dmp

Filesize
344KB

Download
memory/2372-7-0x00000000748EE000-0x00000000748EF000-memory.dmp

Filesize
4KB

Download
memory/4264-11-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download
memory/4264-14-0x00000000014F0000-0x000000000183A000-memory.dmp

Filesize
3.3MB

Download