xtremerat | 5ae317cfd4fcabd4e18e333040dd6b58fadf4a997637d84e3c6b6730eb131f06

General

Target

a2dfcbe1c4b858be83842f6d016b95e7_JaffaCakes118.exe
Size

127KB
MD5

a2dfcbe1c4b858be83842f6d016b95e7
SHA1

fa68e664b8fa5adec1d00eb1283402c6380b606d
SHA256

5ae317cfd4fcabd4e18e333040dd6b58fadf4a997637d84e3c6b6730eb131f06
SHA512

26d165fc9cb1750830d57878a1c1dcf0fe5d37d176f7f5882e76e2ecd04cde62264e11bae83f882aa1b9497c2e310b51875a0032b024d11cac39121ff6872190
SSDEEP

3072:VaBJqCg2O2Mw4XulJwlSQBZgxjC5baaVwqUVOxSc0y1:VarDgYMwRLQzZhxOqUVOxXB

Score

10^/10

xtremerat discovery persistence rat spyware upx

Malware Config

Extracted

Family

xtremerat

C2

pop93.no-ip.org

Signatures

Detect XtremeRAT payload 3 IoCs

resource	yara_rule
behavioral2/memory/3004-10-0x0000000010000000-0x000000001004B000-memory.dmp	family_xtremerat
behavioral2/memory/3324-11-0x0000000010000000-0x000000001004B000-memory.dmp	family_xtremerat
behavioral2/memory/3324-12-0x0000000010000000-0x000000001004B000-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 5 IoCs

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

upx

resource	yara_rule
behavioral2/memory/3004-5-0x0000000010000000-0x000000001004B000-memory.dmp	upx
behavioral2/memory/3004-9-0x0000000010000000-0x000000001004B000-memory.dmp	upx
behavioral2/memory/3004-10-0x0000000010000000-0x000000001004B000-memory.dmp	upx
behavioral2/memory/3324-11-0x0000000010000000-0x000000001004B000-memory.dmp	upx
behavioral2/memory/3324-12-0x0000000010000000-0x000000001004B000-memory.dmp	upx

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 4260 set thread context of 3004	4260	a2dfcbe1c4b858be83842f6d016b95e7_JaffaCakes118.exe	84

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
3260	3324	WerFault.exe	85
4216	3324	WerFault.exe	85

System Location Discovery: System Language Discovery 1 TTPs 3 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	a2dfcbe1c4b858be83842f6d016b95e7_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	a2dfcbe1c4b858be83842f6d016b95e7_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
4260	a2dfcbe1c4b858be83842f6d016b95e7_JaffaCakes118.exe

Suspicious use of WriteProcessMemory 15 IoCs

description	pid	Process	procid_target
PID 4260 wrote to memory of 3004	4260	a2dfcbe1c4b858be83842f6d016b95e7_JaffaCakes118.exe	84
PID 4260 wrote to memory of 3004	4260	a2dfcbe1c4b858be83842f6d016b95e7_JaffaCakes118.exe	84
PID 4260 wrote to memory of 3004	4260	a2dfcbe1c4b858be83842f6d016b95e7_JaffaCakes118.exe	84
PID 4260 wrote to memory of 3004	4260	a2dfcbe1c4b858be83842f6d016b95e7_JaffaCakes118.exe	84
PID 4260 wrote to memory of 3004	4260	a2dfcbe1c4b858be83842f6d016b95e7_JaffaCakes118.exe	84
PID 4260 wrote to memory of 3004	4260	a2dfcbe1c4b858be83842f6d016b95e7_JaffaCakes118.exe	84
PID 4260 wrote to memory of 3004	4260	a2dfcbe1c4b858be83842f6d016b95e7_JaffaCakes118.exe	84
PID 4260 wrote to memory of 3004	4260	a2dfcbe1c4b858be83842f6d016b95e7_JaffaCakes118.exe	84
PID 3004 wrote to memory of 3324	3004	a2dfcbe1c4b858be83842f6d016b95e7_JaffaCakes118.exe	85
PID 3004 wrote to memory of 3324	3004	a2dfcbe1c4b858be83842f6d016b95e7_JaffaCakes118.exe	85
PID 3004 wrote to memory of 3324	3004	a2dfcbe1c4b858be83842f6d016b95e7_JaffaCakes118.exe	85
PID 3004 wrote to memory of 3324	3004	a2dfcbe1c4b858be83842f6d016b95e7_JaffaCakes118.exe	85
PID 3004 wrote to memory of 4280	3004	a2dfcbe1c4b858be83842f6d016b95e7_JaffaCakes118.exe	86
PID 3004 wrote to memory of 4280	3004	a2dfcbe1c4b858be83842f6d016b95e7_JaffaCakes118.exe	86
PID 3004 wrote to memory of 4280	3004	a2dfcbe1c4b858be83842f6d016b95e7_JaffaCakes118.exe	86

C:\Users\Admin\AppData\Local\Temp\a2dfcbe1c4b858be83842f6d016b95e7_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\a2dfcbe1c4b858be83842f6d016b95e7_JaffaCakes118.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:4260
- C:\Users\Admin\AppData\Local\Temp\a2dfcbe1c4b858be83842f6d016b95e7_JaffaCakes118.exe
  C:\Users\Admin\AppData\Local\Temp\a2dfcbe1c4b858be83842f6d016b95e7_JaffaCakes118.exe
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:3004
- - C:\Windows\SysWOW64\svchost.exe
    svchost.exe
    3⤵
    - System Location Discovery: System Language Discovery
    PID:3324
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 3324 -s 480
      4⤵
      Program crash
      PID:3260
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 3324 -s 504
      4⤵
      Program crash
      PID:4216
- - C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
    "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe"
    3⤵
    PID:4280

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 440 -p 3324 -ip 3324
1⤵
PID:2664

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 540 -p 3324 -ip 3324
1⤵
PID:2292

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

1

T1082

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/3004-5-0x0000000010000000-0x000000001004B000-memory.dmp

Filesize
300KB

Download
memory/3004-9-0x0000000010000000-0x000000001004B000-memory.dmp

Filesize
300KB

Download
memory/3004-10-0x0000000010000000-0x000000001004B000-memory.dmp

Filesize
300KB

Download
memory/3324-11-0x0000000010000000-0x000000001004B000-memory.dmp

Filesize
300KB

Download
memory/3324-12-0x0000000010000000-0x000000001004B000-memory.dmp

Filesize
300KB

Download
memory/4260-0-0x0000000000400000-0x0000000000449000-memory.dmp

Filesize
292KB

Download
memory/4260-1-0x0000000000400000-0x0000000000449000-memory.dmp

Filesize
292KB

Download
memory/4260-2-0x0000000000401000-0x0000000000427000-memory.dmp

Filesize
152KB

Download
memory/4260-8-0x0000000000400000-0x0000000000449000-memory.dmp

Filesize
292KB

Download

Analysis

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