formbook | fbf2f8d8779766534f7217c48d9e66207aa5434d6d89c617420a172fc5c7a144

Analysis

max time kernel
122s
max time network
123s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
08/01/2025, 12:21

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General

Target

JaffaCakes118_9f10e1bdb5ede753b4bca22a23387fec.exe
Size

373KB
MD5

9f10e1bdb5ede753b4bca22a23387fec
SHA1

7bc2a0eb5f9c35c67ddab36c157bf010acff639a
SHA256

fbf2f8d8779766534f7217c48d9e66207aa5434d6d89c617420a172fc5c7a144
SHA512

8da683ec28ba55b35700f1067af07ece28c91cc92ef7ea7609f903a83db294a2739c0e222626ac175298e23c5109f8cd37dfce0e083a55f9d70c75e12c2297f6
SSDEEP

6144:RyTMZytLYi08L8YnFfBXsOBrFtHrnObhcTm1PjyXnKI6/va6XWgA5Dyh10FN:iMtBtGBc0rFtHrO6Tm1Ly56/vaXxyK

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
behavioral1/memory/2836-10-0x0000000000400000-0x000000000042E000-memory.dmp	formbook

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1748 set thread context of 2836	1748	JaffaCakes118_9f10e1bdb5ede753b4bca22a23387fec.exe	31

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_9f10e1bdb5ede753b4bca22a23387fec.exe

Suspicious behavior: EnumeratesProcesses 7 IoCs

pid	Process
1748	JaffaCakes118_9f10e1bdb5ede753b4bca22a23387fec.exe
1748	JaffaCakes118_9f10e1bdb5ede753b4bca22a23387fec.exe
1748	JaffaCakes118_9f10e1bdb5ede753b4bca22a23387fec.exe
1748	JaffaCakes118_9f10e1bdb5ede753b4bca22a23387fec.exe
1748	JaffaCakes118_9f10e1bdb5ede753b4bca22a23387fec.exe
1748	JaffaCakes118_9f10e1bdb5ede753b4bca22a23387fec.exe
2836	JaffaCakes118_9f10e1bdb5ede753b4bca22a23387fec.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	1748	JaffaCakes118_9f10e1bdb5ede753b4bca22a23387fec.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 1748 wrote to memory of 2836	1748	JaffaCakes118_9f10e1bdb5ede753b4bca22a23387fec.exe	31
PID 1748 wrote to memory of 2836	1748	JaffaCakes118_9f10e1bdb5ede753b4bca22a23387fec.exe	31
PID 1748 wrote to memory of 2836	1748	JaffaCakes118_9f10e1bdb5ede753b4bca22a23387fec.exe	31
PID 1748 wrote to memory of 2836	1748	JaffaCakes118_9f10e1bdb5ede753b4bca22a23387fec.exe	31
PID 1748 wrote to memory of 2836	1748	JaffaCakes118_9f10e1bdb5ede753b4bca22a23387fec.exe	31
PID 1748 wrote to memory of 2836	1748	JaffaCakes118_9f10e1bdb5ede753b4bca22a23387fec.exe	31
PID 1748 wrote to memory of 2836	1748	JaffaCakes118_9f10e1bdb5ede753b4bca22a23387fec.exe	31

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_9f10e1bdb5ede753b4bca22a23387fec.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_9f10e1bdb5ede753b4bca22a23387fec.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1748
- C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_9f10e1bdb5ede753b4bca22a23387fec.exe
  "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_9f10e1bdb5ede753b4bca22a23387fec.exe"
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  PID:2836

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/1748-0-0x0000000074C4E000-0x0000000074C4F000-memory.dmp

Filesize
4KB

Download
memory/1748-1-0x0000000000D90000-0x0000000000DF4000-memory.dmp

Filesize
400KB

Download
memory/1748-2-0x0000000074C40000-0x000000007532E000-memory.dmp

Filesize
6.9MB

Download
memory/1748-3-0x0000000000450000-0x000000000045E000-memory.dmp

Filesize
56KB

Download
memory/1748-4-0x0000000074C40000-0x000000007532E000-memory.dmp

Filesize
6.9MB

Download
memory/1748-5-0x00000000046D0000-0x0000000004726000-memory.dmp

Filesize
344KB

Download
memory/1748-11-0x0000000074C40000-0x000000007532E000-memory.dmp

Filesize
6.9MB

Download
memory/2836-10-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download
memory/2836-8-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2836-7-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download
memory/2836-6-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download
memory/2836-12-0x00000000008F0000-0x0000000000BF3000-memory.dmp

Filesize
3.0MB

Download