xtremerat | ba03144a100fddeaf015ba5fc2a2c789d02c3278cfd8271da36f61fcfe599878

General

Target

JaffaCakes118_ab9eee0bf8554b0e801987294a816266.exe
Size

75KB
MD5

ab9eee0bf8554b0e801987294a816266
SHA1

ab98b4dd9d68280946f8a284270fbbd2de8d0b14
SHA256

ba03144a100fddeaf015ba5fc2a2c789d02c3278cfd8271da36f61fcfe599878
SHA512

d23b8f29a3931f39dabae8bda61485e9889f5b298c37748c219b4e369e61af284a6b65ff5131cd58659638e7ed49a884b92d6673c482548c1788e2c321165361
SSDEEP

1536:vAatFyviqgsDz4IJFE6OyiBgOaajWIrxTitke8mjWflCl96ug1:4O9qDwGRU0ajW0ve88WfYyuQ

Score

10^/10

xtremerat discovery persistence rat spyware upx

Malware Config

Extracted

Family

xtremerat

C2

black100.no-ip.biz

Checkcantstop.no-ip.biz

Signatures

Detect XtremeRAT payload 4 IoCs

resource	yara_rule
behavioral1/memory/5928-5-0x0000000010000000-0x0000000010049000-memory.dmp	family_xtremerat
behavioral1/memory/5792-7-0x0000000010000000-0x0000000010049000-memory.dmp	family_xtremerat
behavioral1/memory/5928-8-0x0000000010000000-0x0000000010049000-memory.dmp	family_xtremerat
behavioral1/memory/5792-10-0x0000000010000000-0x0000000010049000-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 6044 set thread context of 5928	6044	JaffaCakes118_ab9eee0bf8554b0e801987294a816266.exe	86

UPX packed file 7 IoCs

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

upx

resource	yara_rule
behavioral1/memory/5928-2-0x0000000010000000-0x0000000010049000-memory.dmp	upx
behavioral1/memory/5928-4-0x0000000010000000-0x0000000010049000-memory.dmp	upx
behavioral1/memory/5928-6-0x0000000010000000-0x0000000010049000-memory.dmp	upx
behavioral1/memory/5928-5-0x0000000010000000-0x0000000010049000-memory.dmp	upx
behavioral1/memory/5792-7-0x0000000010000000-0x0000000010049000-memory.dmp	upx
behavioral1/memory/5928-8-0x0000000010000000-0x0000000010049000-memory.dmp	upx
behavioral1/memory/5792-10-0x0000000010000000-0x0000000010049000-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
5856	5792	WerFault.exe	87
2720	5792	WerFault.exe	87

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_ab9eee0bf8554b0e801987294a816266.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_ab9eee0bf8554b0e801987294a816266.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
6044	JaffaCakes118_ab9eee0bf8554b0e801987294a816266.exe

Suspicious use of WriteProcessMemory 15 IoCs

description	pid	Process	procid_target
PID 6044 wrote to memory of 5928	6044	JaffaCakes118_ab9eee0bf8554b0e801987294a816266.exe	86
PID 6044 wrote to memory of 5928	6044	JaffaCakes118_ab9eee0bf8554b0e801987294a816266.exe	86
PID 6044 wrote to memory of 5928	6044	JaffaCakes118_ab9eee0bf8554b0e801987294a816266.exe	86
PID 6044 wrote to memory of 5928	6044	JaffaCakes118_ab9eee0bf8554b0e801987294a816266.exe	86
PID 6044 wrote to memory of 5928	6044	JaffaCakes118_ab9eee0bf8554b0e801987294a816266.exe	86
PID 6044 wrote to memory of 5928	6044	JaffaCakes118_ab9eee0bf8554b0e801987294a816266.exe	86
PID 6044 wrote to memory of 5928	6044	JaffaCakes118_ab9eee0bf8554b0e801987294a816266.exe	86
PID 6044 wrote to memory of 5928	6044	JaffaCakes118_ab9eee0bf8554b0e801987294a816266.exe	86
PID 5928 wrote to memory of 5792	5928	JaffaCakes118_ab9eee0bf8554b0e801987294a816266.exe	87
PID 5928 wrote to memory of 5792	5928	JaffaCakes118_ab9eee0bf8554b0e801987294a816266.exe	87
PID 5928 wrote to memory of 5792	5928	JaffaCakes118_ab9eee0bf8554b0e801987294a816266.exe	87
PID 5928 wrote to memory of 5792	5928	JaffaCakes118_ab9eee0bf8554b0e801987294a816266.exe	87
PID 5928 wrote to memory of 5584	5928	JaffaCakes118_ab9eee0bf8554b0e801987294a816266.exe	89
PID 5928 wrote to memory of 5584	5928	JaffaCakes118_ab9eee0bf8554b0e801987294a816266.exe	89
PID 5928 wrote to memory of 5584	5928	JaffaCakes118_ab9eee0bf8554b0e801987294a816266.exe	89

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_ab9eee0bf8554b0e801987294a816266.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_ab9eee0bf8554b0e801987294a816266.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:6044
- C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_ab9eee0bf8554b0e801987294a816266.exe
  "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_ab9eee0bf8554b0e801987294a816266.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:5928
- - C:\Windows\SysWOW64\svchost.exe
    svchost.exe
    3⤵
    - System Location Discovery: System Language Discovery
    PID:5792
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 5792 -s 480
      4⤵
      Program crash
      PID:5856
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 5792 -s 488
      4⤵
      Program crash
      PID:2720
- - C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
    "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe"
    3⤵
    PID:5584

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 416 -p 5792 -ip 5792
1⤵
PID:2352

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 540 -p 5792 -ip 5792
1⤵
PID:2160

Network

MITRE ATT&CK Enterprise v16

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

Loading Replay Monitor...

Downloads

memory/5792-7-0x0000000010000000-0x0000000010049000-memory.dmp

Filesize
292KB

Download
memory/5792-10-0x0000000010000000-0x0000000010049000-memory.dmp

Filesize
292KB

Download
memory/5928-2-0x0000000010000000-0x0000000010049000-memory.dmp

Filesize
292KB

Download
memory/5928-4-0x0000000010000000-0x0000000010049000-memory.dmp

Filesize
292KB

Download
memory/5928-6-0x0000000010000000-0x0000000010049000-memory.dmp

Filesize
292KB

Download
memory/5928-5-0x0000000010000000-0x0000000010049000-memory.dmp

Filesize
292KB

Download
memory/5928-8-0x0000000010000000-0x0000000010049000-memory.dmp

Filesize
292KB

Download

Analysis

Sharing