xtremerat | ca935715c9f2678ce21f10c22aa56deb63e9135f2b3f734e3f46ac27d1dac2d0

Analysis

max time kernel
149s
max time network
151s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
19-10-2024 13:44

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General

Target

5cec29c612dc373868cc7a8b0a17f668_JaffaCakes118.exe
Size

290KB
MD5

5cec29c612dc373868cc7a8b0a17f668
SHA1

c1e21311303ee7c94edbf527ede53f09b36061a1
SHA256

ca935715c9f2678ce21f10c22aa56deb63e9135f2b3f734e3f46ac27d1dac2d0
SHA512

f39ea98f4ed54a5e3d170ae81badb99dfe00387e9d8b3141ef8beb16f005cd5aac40204b61b065148ed28a83b73d156c6cb65ec7c73515f1c3e4c7e70f9df06e
SSDEEP

1536:fT8qDqQ8K9MK3tGjbNwPZ6oIeXHWJ0YVytx:LqMyKdcPeXHWCYVyx

Score

10^/10

xtremerat discovery persistence rat spyware upx

Malware Config

Extracted

Family

xtremerat

cwkomando.no-ip.org

Signatures

Detect XtremeRAT payload 4 IoCs

resource	yara_rule
behavioral2/memory/3952-0-0x0000000010000000-0x000000001004A000-memory.dmp	family_xtremerat
behavioral2/memory/4540-1-0x0000000010000000-0x000000001004A000-memory.dmp	family_xtremerat
behavioral2/memory/3952-2-0x0000000010000000-0x000000001004A000-memory.dmp	family_xtremerat
behavioral2/memory/4540-4-0x0000000010000000-0x000000001004A000-memory.dmp	family_xtremerat

XtremeRAT
The XtremeRAT was developed by xtremecoder and has been available since at least 2010, and written in Delphi.
persistence spyware rat xtremerat

UPX packed file 4 IoCs

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

upx

resource	yara_rule
behavioral2/memory/3952-0-0x0000000010000000-0x000000001004A000-memory.dmp	upx
behavioral2/memory/4540-1-0x0000000010000000-0x000000001004A000-memory.dmp	upx
behavioral2/memory/3952-2-0x0000000010000000-0x000000001004A000-memory.dmp	upx
behavioral2/memory/4540-4-0x0000000010000000-0x000000001004A000-memory.dmp	upx

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

System Information Discovery
T1082

Program crash 2 IoCs

pid	pid_target	Process	procid_target
4204	4540	WerFault.exe	84
1088	4540	WerFault.exe	84

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	5cec29c612dc373868cc7a8b0a17f668_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 3952 wrote to memory of 4540	3952	5cec29c612dc373868cc7a8b0a17f668_JaffaCakes118.exe	84
PID 3952 wrote to memory of 4540	3952	5cec29c612dc373868cc7a8b0a17f668_JaffaCakes118.exe	84
PID 3952 wrote to memory of 4540	3952	5cec29c612dc373868cc7a8b0a17f668_JaffaCakes118.exe	84
PID 3952 wrote to memory of 4540	3952	5cec29c612dc373868cc7a8b0a17f668_JaffaCakes118.exe	84
PID 3952 wrote to memory of 1980	3952	5cec29c612dc373868cc7a8b0a17f668_JaffaCakes118.exe	85
PID 3952 wrote to memory of 1980	3952	5cec29c612dc373868cc7a8b0a17f668_JaffaCakes118.exe	85
PID 3952 wrote to memory of 1980	3952	5cec29c612dc373868cc7a8b0a17f668_JaffaCakes118.exe	85

C:\Users\Admin\AppData\Local\Temp\5cec29c612dc373868cc7a8b0a17f668_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\5cec29c612dc373868cc7a8b0a17f668_JaffaCakes118.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3952
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - System Location Discovery: System Language Discovery
  PID:4540
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 4540 -s 480
    3⤵
    - Program crash
    PID:4204
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 4540 -s 476
    3⤵
    - Program crash
    PID:1088
- C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
  "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe"
  2⤵
  PID:1980

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 4540 -ip 4540
1⤵
PID:3016

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 508 -p 4540 -ip 4540
1⤵
PID:3568

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

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

memory/3952-0-0x0000000010000000-0x000000001004A000-memory.dmp

Filesize
296KB

Download
memory/3952-2-0x0000000010000000-0x000000001004A000-memory.dmp

Filesize
296KB

Download
memory/4540-1-0x0000000010000000-0x000000001004A000-memory.dmp

Filesize
296KB

Download
memory/4540-4-0x0000000010000000-0x000000001004A000-memory.dmp

Filesize
296KB

Download