xtremerat | 716007a7e29737848c50cd618e657b27d719af0a8e87b19db0770666fabf7bf3

General

Target

JaffaCakes118_0c260d1bd64109525153cfd455e604fa.exe
Size

171KB
MD5

0c260d1bd64109525153cfd455e604fa
SHA1

805a24df9e8beecd86edac4031ddb6c0ce29eb40
SHA256

716007a7e29737848c50cd618e657b27d719af0a8e87b19db0770666fabf7bf3
SHA512

c8cb870c91d68022f67c411e3b4990dd45511ae816728c9d129a0b5b5bc8483ec8defe14a22c6a1a14bb68dfae4609f17f6243a06ca34d2246083c34922311bd
SSDEEP

3072:EshbBO2q5PPTYmHfRKOB1BM6xhQL1WRZdGiTIlmIx8lBNwzb1OPDYWuODh:rBo5PPEm/RfB1BM6x2LQbKxOGborB

Score

10^/10

xtremerat discovery persistence rat spyware upx

Malware Config

Signatures

Detect XtremeRAT payload 5 IoCs

resource	yara_rule
behavioral2/memory/4916-8-0x0000000010000000-0x000000001004D000-memory.dmp	family_xtremerat
behavioral2/memory/4916-9-0x0000000010000000-0x000000001004D000-memory.dmp	family_xtremerat
behavioral2/memory/3124-10-0x0000000010000000-0x000000001004D000-memory.dmp	family_xtremerat
behavioral2/memory/4916-11-0x0000000010000000-0x000000001004D000-memory.dmp	family_xtremerat
behavioral2/memory/3124-12-0x0000000010000000-0x000000001004D000-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
Xtremerat family
xtremerat

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 3744 set thread context of 4916	3744	JaffaCakes118_0c260d1bd64109525153cfd455e604fa.exe	82

UPX packed file 7 IoCs

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

upx

resource	yara_rule
behavioral2/memory/4916-3-0x0000000010000000-0x000000001004D000-memory.dmp	upx
behavioral2/memory/4916-5-0x0000000010000000-0x000000001004D000-memory.dmp	upx
behavioral2/memory/4916-8-0x0000000010000000-0x000000001004D000-memory.dmp	upx
behavioral2/memory/4916-9-0x0000000010000000-0x000000001004D000-memory.dmp	upx
behavioral2/memory/3124-10-0x0000000010000000-0x000000001004D000-memory.dmp	upx
behavioral2/memory/4916-11-0x0000000010000000-0x000000001004D000-memory.dmp	upx
behavioral2/memory/3124-12-0x0000000010000000-0x000000001004D000-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
3404	3124	WerFault.exe	83
4624	3124	WerFault.exe	83

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	JaffaCakes118_0c260d1bd64109525153cfd455e604fa.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_0c260d1bd64109525153cfd455e604fa.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
3744	JaffaCakes118_0c260d1bd64109525153cfd455e604fa.exe

Suspicious use of WriteProcessMemory 15 IoCs

description	pid	Process	procid_target
PID 3744 wrote to memory of 4916	3744	JaffaCakes118_0c260d1bd64109525153cfd455e604fa.exe	82
PID 3744 wrote to memory of 4916	3744	JaffaCakes118_0c260d1bd64109525153cfd455e604fa.exe	82
PID 3744 wrote to memory of 4916	3744	JaffaCakes118_0c260d1bd64109525153cfd455e604fa.exe	82
PID 3744 wrote to memory of 4916	3744	JaffaCakes118_0c260d1bd64109525153cfd455e604fa.exe	82
PID 3744 wrote to memory of 4916	3744	JaffaCakes118_0c260d1bd64109525153cfd455e604fa.exe	82
PID 3744 wrote to memory of 4916	3744	JaffaCakes118_0c260d1bd64109525153cfd455e604fa.exe	82
PID 3744 wrote to memory of 4916	3744	JaffaCakes118_0c260d1bd64109525153cfd455e604fa.exe	82
PID 3744 wrote to memory of 4916	3744	JaffaCakes118_0c260d1bd64109525153cfd455e604fa.exe	82
PID 4916 wrote to memory of 3124	4916	JaffaCakes118_0c260d1bd64109525153cfd455e604fa.exe	83
PID 4916 wrote to memory of 3124	4916	JaffaCakes118_0c260d1bd64109525153cfd455e604fa.exe	83
PID 4916 wrote to memory of 3124	4916	JaffaCakes118_0c260d1bd64109525153cfd455e604fa.exe	83
PID 4916 wrote to memory of 3124	4916	JaffaCakes118_0c260d1bd64109525153cfd455e604fa.exe	83
PID 4916 wrote to memory of 5064	4916	JaffaCakes118_0c260d1bd64109525153cfd455e604fa.exe	84
PID 4916 wrote to memory of 5064	4916	JaffaCakes118_0c260d1bd64109525153cfd455e604fa.exe	84
PID 4916 wrote to memory of 5064	4916	JaffaCakes118_0c260d1bd64109525153cfd455e604fa.exe	84

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_0c260d1bd64109525153cfd455e604fa.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_0c260d1bd64109525153cfd455e604fa.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:3744
- C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_0c260d1bd64109525153cfd455e604fa.exe
  C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_0c260d1bd64109525153cfd455e604fa.exe
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:4916
- - C:\Windows\SysWOW64\svchost.exe
    svchost.exe
    3⤵
    - System Location Discovery: System Language Discovery
    PID:3124
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 3124 -s 480
      4⤵
      Program crash
      PID:3404
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 3124 -s 488
      4⤵
      Program crash
      PID:4624
- - C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
    "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe"
    3⤵
    PID:5064

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 3124 -ip 3124
1⤵
PID:2340

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 488 -p 3124 -ip 3124
1⤵
PID:1752

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/3124-10-0x0000000010000000-0x000000001004D000-memory.dmp

Filesize
308KB

Download
memory/3124-12-0x0000000010000000-0x000000001004D000-memory.dmp

Filesize
308KB

Download
memory/3744-0-0x0000000000400000-0x00000000004FE000-memory.dmp

Filesize
1016KB

Download
memory/3744-7-0x0000000000400000-0x00000000004FE000-memory.dmp

Filesize
1016KB

Download
memory/4916-3-0x0000000010000000-0x000000001004D000-memory.dmp

Filesize
308KB

Download
memory/4916-5-0x0000000010000000-0x000000001004D000-memory.dmp

Filesize
308KB

Download
memory/4916-8-0x0000000010000000-0x000000001004D000-memory.dmp

Filesize
308KB

Download
memory/4916-9-0x0000000010000000-0x000000001004D000-memory.dmp

Filesize
308KB

Download
memory/4916-11-0x0000000010000000-0x000000001004D000-memory.dmp

Filesize
308KB

Download

Analysis

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