xtremerat | 29563bb280effd8538bcd95c9debc65447a4c17856d949771c15822a05980f86

General

Target

JaffaCakes118_b60c6bc455f1f2c317ca9758554895e5.exe
Size

184KB
MD5

b60c6bc455f1f2c317ca9758554895e5
SHA1

4ce05d7a75622be2cfe3c4c300d327f2a0c3d78f
SHA256

29563bb280effd8538bcd95c9debc65447a4c17856d949771c15822a05980f86
SHA512

c27eafa0b084f1f9580220b2ec88d80572ebb883f39d10d25da4cf4af58ef8a4e927bab2c53a9ff84f66debd543abf0a50b2f0973d4e7c68acad09a9ef04ff54
SSDEEP

3072:fN9fU+4gkv5CgZ3k+uGTMUQhLQK965LlgdpB29jrgc2dMQ:AIkv5538UpxdlgdpYtO

Score

10^/10

xtremerat bootkit discovery persistence rat spyware upx

Malware Config

Extracted

Family

xtremerat

C2

r3dz80.no-ip.info

Signatures

Detect XtremeRAT payload 3 IoCs

resource	yara_rule
behavioral1/memory/4580-13-0x0000000010000000-0x000000001004D000-memory.dmp	family_xtremerat
behavioral1/memory/4784-15-0x0000000010000000-0x000000001004D000-memory.dmp	family_xtremerat
behavioral1/memory/4784-16-0x0000000010000000-0x000000001004D000-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

Writes to the Master Boot Record (MBR) 1 TTPs 1 IoCs

Bootkits write to the MBR to gain persistence at a level below the operating system.

bootkit persistence

Bootkit

T1542.003

description	ioc	Process
File opened for modification	\??\PhysicalDrive0	JaffaCakes118_b60c6bc455f1f2c317ca9758554895e5.exe

Suspicious use of SetThreadContext 2 IoCs

description	pid	Process	procid_target
PID 220 set thread context of 4452	220	JaffaCakes118_b60c6bc455f1f2c317ca9758554895e5.exe	91
PID 4452 set thread context of 4580	4452	JaffaCakes118_b60c6bc455f1f2c317ca9758554895e5.exe	92

UPX packed file 5 IoCs

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

upx

resource	yara_rule
behavioral1/memory/4580-7-0x0000000010000000-0x000000001004D000-memory.dmp	upx
behavioral1/memory/4580-9-0x0000000010000000-0x000000001004D000-memory.dmp	upx
behavioral1/memory/4580-13-0x0000000010000000-0x000000001004D000-memory.dmp	upx
behavioral1/memory/4784-15-0x0000000010000000-0x000000001004D000-memory.dmp	upx
behavioral1/memory/4784-16-0x0000000010000000-0x000000001004D000-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
5628	4784	WerFault.exe	93
1440	4784	WerFault.exe	93

System Location Discovery: System Language Discovery 1 TTPs 4 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	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_b60c6bc455f1f2c317ca9758554895e5.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_b60c6bc455f1f2c317ca9758554895e5.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_b60c6bc455f1f2c317ca9758554895e5.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
220	JaffaCakes118_b60c6bc455f1f2c317ca9758554895e5.exe
4452	JaffaCakes118_b60c6bc455f1f2c317ca9758554895e5.exe

Suspicious use of WriteProcessMemory 23 IoCs

description	pid	Process	procid_target
PID 220 wrote to memory of 4452	220	JaffaCakes118_b60c6bc455f1f2c317ca9758554895e5.exe	91
PID 220 wrote to memory of 4452	220	JaffaCakes118_b60c6bc455f1f2c317ca9758554895e5.exe	91
PID 220 wrote to memory of 4452	220	JaffaCakes118_b60c6bc455f1f2c317ca9758554895e5.exe	91
PID 220 wrote to memory of 4452	220	JaffaCakes118_b60c6bc455f1f2c317ca9758554895e5.exe	91
PID 220 wrote to memory of 4452	220	JaffaCakes118_b60c6bc455f1f2c317ca9758554895e5.exe	91
PID 220 wrote to memory of 4452	220	JaffaCakes118_b60c6bc455f1f2c317ca9758554895e5.exe	91
PID 220 wrote to memory of 4452	220	JaffaCakes118_b60c6bc455f1f2c317ca9758554895e5.exe	91
PID 220 wrote to memory of 4452	220	JaffaCakes118_b60c6bc455f1f2c317ca9758554895e5.exe	91
PID 4452 wrote to memory of 4580	4452	JaffaCakes118_b60c6bc455f1f2c317ca9758554895e5.exe	92
PID 4452 wrote to memory of 4580	4452	JaffaCakes118_b60c6bc455f1f2c317ca9758554895e5.exe	92
PID 4452 wrote to memory of 4580	4452	JaffaCakes118_b60c6bc455f1f2c317ca9758554895e5.exe	92
PID 4452 wrote to memory of 4580	4452	JaffaCakes118_b60c6bc455f1f2c317ca9758554895e5.exe	92
PID 4452 wrote to memory of 4580	4452	JaffaCakes118_b60c6bc455f1f2c317ca9758554895e5.exe	92
PID 4452 wrote to memory of 4580	4452	JaffaCakes118_b60c6bc455f1f2c317ca9758554895e5.exe	92
PID 4452 wrote to memory of 4580	4452	JaffaCakes118_b60c6bc455f1f2c317ca9758554895e5.exe	92
PID 4452 wrote to memory of 4580	4452	JaffaCakes118_b60c6bc455f1f2c317ca9758554895e5.exe	92
PID 4580 wrote to memory of 4784	4580	JaffaCakes118_b60c6bc455f1f2c317ca9758554895e5.exe	93
PID 4580 wrote to memory of 4784	4580	JaffaCakes118_b60c6bc455f1f2c317ca9758554895e5.exe	93
PID 4580 wrote to memory of 4784	4580	JaffaCakes118_b60c6bc455f1f2c317ca9758554895e5.exe	93
PID 4580 wrote to memory of 4784	4580	JaffaCakes118_b60c6bc455f1f2c317ca9758554895e5.exe	93
PID 4580 wrote to memory of 5428	4580	JaffaCakes118_b60c6bc455f1f2c317ca9758554895e5.exe	94
PID 4580 wrote to memory of 5428	4580	JaffaCakes118_b60c6bc455f1f2c317ca9758554895e5.exe	94
PID 4580 wrote to memory of 5428	4580	JaffaCakes118_b60c6bc455f1f2c317ca9758554895e5.exe	94

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_b60c6bc455f1f2c317ca9758554895e5.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_b60c6bc455f1f2c317ca9758554895e5.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:220
- C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_b60c6bc455f1f2c317ca9758554895e5.exe
  "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_b60c6bc455f1f2c317ca9758554895e5.exe"
  2⤵
  - Writes to the Master Boot Record (MBR)
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:4452
- - C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_b60c6bc455f1f2c317ca9758554895e5.exe
    "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_b60c6bc455f1f2c317ca9758554895e5.exe"
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:4580
  - - C:\Windows\SysWOW64\svchost.exe
      svchost.exe
      4⤵
      System Location Discovery: System Language Discovery
      PID:4784
    - - C:\Windows\SysWOW64\WerFault.exe
        
        C:\Windows\SysWOW64\WerFault.exe -u -p 4784 -s 480
        5⤵
        Program crash
        
        PID:5628
    - - C:\Windows\SysWOW64\WerFault.exe
        
        C:\Windows\SysWOW64\WerFault.exe -u -p 4784 -s 488
        5⤵
        Program crash
        
        PID:1440
  - - C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
      "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe"
      4⤵
      PID:5428

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 416 -p 4784 -ip 4784
1⤵
PID:4660

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 472 -p 4784 -ip 4784
1⤵
PID:3356

Network

MITRE ATT&CK Enterprise v16

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Pre-OS Boot

1

T1542

Bootkit

1

T1542.003

Privilege Escalation

Defense Evasion

Pre-OS Boot

1

T1542

Bootkit

1

T1542.003

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

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Downloads

memory/4452-2-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4452-4-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4452-12-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4580-7-0x0000000010000000-0x000000001004D000-memory.dmp

Filesize
308KB

Download
memory/4580-9-0x0000000010000000-0x000000001004D000-memory.dmp

Filesize
308KB

Download
memory/4580-14-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download
memory/4580-13-0x0000000010000000-0x000000001004D000-memory.dmp

Filesize
308KB

Download
memory/4784-15-0x0000000010000000-0x000000001004D000-memory.dmp

Filesize
308KB

Download
memory/4784-16-0x0000000010000000-0x000000001004D000-memory.dmp

Filesize
308KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v16

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Downloads