bruteratel | 868f09d969f568588700343e2e9c37544089f1ef9909d1f933f11c761d1f071d

Analysis

max time kernel
95s
max time network
149s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
03-01-2025 19:31

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General

Target

JaffaCakes118_6f033fc8cd7e34455dd63f02209a2bc0.exe
Size

88KB
MD5

6f033fc8cd7e34455dd63f02209a2bc0
SHA1

f35a5ecdacead5a25f9de540ef7e47d24b84d9ef
SHA256

868f09d969f568588700343e2e9c37544089f1ef9909d1f933f11c761d1f071d
SHA512

991635ab01b60364d2f809b92f24d097abe6f577a2f8250ede7c385f22c81ec93d604cd78a0efce78d4e6ab9c739c5815f18da3d100171581f9cba35f2c2ba9d
SSDEEP

1536:esrnFJekIsOnOCaRIj0oCudDF9DXQIdgikEH7m0:B7FJekX2jaRU0/IDFNQIdgrI

Score

10^/10

bruteratel backdoor discovery upx

Malware Config

Signatures

Brute Ratel C4
A customized command and control framework for red teaming and adversary simulation.
backdoor bruteratel
Bruteratel family
bruteratel

Detect BruteRatel badger 1 IoCs

resource	yara_rule
behavioral2/memory/4556-0-0x00000000004C0000-0x00000000004CD000-memory.dmp	family_bruteratel

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-3442511616-637977696-3186306149-1000\Control Panel\International\Geo\Nation	JaffaCakes118_6f033fc8cd7e34455dd63f02209a2bc0.exe

UPX packed file 2 IoCs

Detects executables packed with UPX/modified UPX open source packer.

upx

resource	yara_rule
behavioral2/memory/4556-1-0x0000000000400000-0x0000000000425000-memory.dmp	upx
behavioral2/memory/4556-3-0x0000000000400000-0x0000000000425000-memory.dmp	upx

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

System Information Discovery
T1082

System Location Discovery: System Language Discovery 1 TTPs 2 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_6f033fc8cd7e34455dd63f02209a2bc0.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
4556	JaffaCakes118_6f033fc8cd7e34455dd63f02209a2bc0.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 4556 wrote to memory of 3236	4556	JaffaCakes118_6f033fc8cd7e34455dd63f02209a2bc0.exe	82
PID 4556 wrote to memory of 3236	4556	JaffaCakes118_6f033fc8cd7e34455dd63f02209a2bc0.exe	82
PID 4556 wrote to memory of 3236	4556	JaffaCakes118_6f033fc8cd7e34455dd63f02209a2bc0.exe	82

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_6f033fc8cd7e34455dd63f02209a2bc0.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_6f033fc8cd7e34455dd63f02209a2bc0.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of WriteProcessMemory
PID:4556
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\system32\cmd.exe" /q /c "C:\Users\Admin\AppData\Local\Temp\Fmp..bat" > nul 2> nul
  2⤵
  - System Location Discovery: System Language Discovery
  PID:3236

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\Fmp..bat

Filesize
238B

MD5
9b7e608bf569cef8b7d58e66fe917a61

SHA1
9d410d1f8feb4262f0bdc7f3b03baff464d4c218

SHA256
65156da8ca2c3d1944bcce1d9b81cd96737ab69d17b6407da5a8ad494b73ece1

SHA512
834e968cb83f99a1c679230134b32c0f12c2935d9a663473120298d086de49a9484c8b25309e077bbdf59cf1e315e8b9f3b2fe696ee4359b63413eca5a2824af

Download Submit
memory/4556-0-0x00000000004C0000-0x00000000004CD000-memory.dmp

Filesize
52KB

Download
memory/4556-1-0x0000000000400000-0x0000000000425000-memory.dmp

Filesize
148KB

Download
memory/4556-3-0x0000000000400000-0x0000000000425000-memory.dmp

Filesize
148KB

Download