xtremerat | 846379ec8895b1890befe5ba8d56c2fb47be01e2bed0274829fe9259144d1e64

General

Target

fe9ed51d3348653ef8ca0d9ddcc976e9_JaffaCakes118.exe
Size

111KB
MD5

fe9ed51d3348653ef8ca0d9ddcc976e9
SHA1

0e1b5ec69036369d6d91b1fcc54d70030f94c140
SHA256

846379ec8895b1890befe5ba8d56c2fb47be01e2bed0274829fe9259144d1e64
SHA512

e1e4f97707e53503880ca7bbc7f14ad46079ca124f281452f75e7c2453d81200ab75bbaa9473d56fd0280c2e588b6e727dae9bcfcc84c6cbadbf92a1266b3b48
SSDEEP

1536:JX2Z6iJobVDDPk3huCcSnZQAPBfDf7+PqtCFInVjPVT64Ydjnp5mB6Fg8SN:8Z2xvc3PcSnZ1pGo1d1YdTHmBL8SN

Score

10^/10

xtremerat discovery persistence rat spyware upx

Malware Config

Extracted

Family

xtremerat

C2

dannymatrix.no-ip.org

Signatures

Detect XtremeRAT payload 4 IoCs

resource	yara_rule
behavioral2/memory/4908-6-0x0000000010000000-0x000000001004F000-memory.dmp	family_xtremerat
behavioral2/memory/1120-8-0x0000000010000000-0x000000001004F000-memory.dmp	family_xtremerat
behavioral2/memory/4908-11-0x0000000010000000-0x000000001004F000-memory.dmp	family_xtremerat
behavioral2/memory/1120-12-0x0000000010000000-0x000000001004F000-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

Drops file in System32 directory 2 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\372download.jpg.exe	fe9ed51d3348653ef8ca0d9ddcc976e9_JaffaCakes118.exe
File created	C:\Windows\SysWOW64\372download.jpg	fe9ed51d3348653ef8ca0d9ddcc976e9_JaffaCakes118.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2144 set thread context of 4908	2144	fe9ed51d3348653ef8ca0d9ddcc976e9_JaffaCakes118.exe	83

UPX packed file 7 IoCs

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

upx

resource	yara_rule
behavioral2/memory/4908-3-0x0000000010000000-0x000000001004F000-memory.dmp	upx
behavioral2/memory/4908-5-0x0000000010000000-0x000000001004F000-memory.dmp	upx
behavioral2/memory/4908-6-0x0000000010000000-0x000000001004F000-memory.dmp	upx
behavioral2/memory/4908-7-0x0000000010000000-0x000000001004F000-memory.dmp	upx
behavioral2/memory/1120-8-0x0000000010000000-0x000000001004F000-memory.dmp	upx
behavioral2/memory/4908-11-0x0000000010000000-0x000000001004F000-memory.dmp	upx
behavioral2/memory/1120-12-0x0000000010000000-0x000000001004F000-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
2900	1120	WerFault.exe	84
216	1120	WerFault.exe	84

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	fe9ed51d3348653ef8ca0d9ddcc976e9_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	fe9ed51d3348653ef8ca0d9ddcc976e9_JaffaCakes118.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
2144	fe9ed51d3348653ef8ca0d9ddcc976e9_JaffaCakes118.exe

Suspicious use of WriteProcessMemory 15 IoCs

description	pid	Process	procid_target
PID 2144 wrote to memory of 4908	2144	fe9ed51d3348653ef8ca0d9ddcc976e9_JaffaCakes118.exe	83
PID 2144 wrote to memory of 4908	2144	fe9ed51d3348653ef8ca0d9ddcc976e9_JaffaCakes118.exe	83
PID 2144 wrote to memory of 4908	2144	fe9ed51d3348653ef8ca0d9ddcc976e9_JaffaCakes118.exe	83
PID 2144 wrote to memory of 4908	2144	fe9ed51d3348653ef8ca0d9ddcc976e9_JaffaCakes118.exe	83
PID 2144 wrote to memory of 4908	2144	fe9ed51d3348653ef8ca0d9ddcc976e9_JaffaCakes118.exe	83
PID 2144 wrote to memory of 4908	2144	fe9ed51d3348653ef8ca0d9ddcc976e9_JaffaCakes118.exe	83
PID 2144 wrote to memory of 4908	2144	fe9ed51d3348653ef8ca0d9ddcc976e9_JaffaCakes118.exe	83
PID 2144 wrote to memory of 4908	2144	fe9ed51d3348653ef8ca0d9ddcc976e9_JaffaCakes118.exe	83
PID 4908 wrote to memory of 1120	4908	fe9ed51d3348653ef8ca0d9ddcc976e9_JaffaCakes118.exe	84
PID 4908 wrote to memory of 1120	4908	fe9ed51d3348653ef8ca0d9ddcc976e9_JaffaCakes118.exe	84
PID 4908 wrote to memory of 1120	4908	fe9ed51d3348653ef8ca0d9ddcc976e9_JaffaCakes118.exe	84
PID 4908 wrote to memory of 1120	4908	fe9ed51d3348653ef8ca0d9ddcc976e9_JaffaCakes118.exe	84
PID 4908 wrote to memory of 2196	4908	fe9ed51d3348653ef8ca0d9ddcc976e9_JaffaCakes118.exe	85
PID 4908 wrote to memory of 2196	4908	fe9ed51d3348653ef8ca0d9ddcc976e9_JaffaCakes118.exe	85
PID 4908 wrote to memory of 2196	4908	fe9ed51d3348653ef8ca0d9ddcc976e9_JaffaCakes118.exe	85

C:\Users\Admin\AppData\Local\Temp\fe9ed51d3348653ef8ca0d9ddcc976e9_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\fe9ed51d3348653ef8ca0d9ddcc976e9_JaffaCakes118.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2144
- C:\Users\Admin\AppData\Local\Temp\fe9ed51d3348653ef8ca0d9ddcc976e9_JaffaCakes118.exe
  C:\Users\Admin\AppData\Local\Temp\fe9ed51d3348653ef8ca0d9ddcc976e9_JaffaCakes118.exe
  2⤵
  - Drops file in System32 directory
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:4908
- - C:\Windows\SysWOW64\svchost.exe
    svchost.exe
    3⤵
    - System Location Discovery: System Language Discovery
    PID:1120
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 1120 -s 484
      4⤵
      Program crash
      PID:2900
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 1120 -s 492
      4⤵
      Program crash
      PID:216
- - C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
    "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe"
    3⤵
    PID:2196

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 1120 -ip 1120
1⤵
PID:3532

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 472 -p 1120 -ip 1120
1⤵
PID:4392

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

Loading Replay Monitor...

Downloads

memory/1120-8-0x0000000010000000-0x000000001004F000-memory.dmp

Filesize
316KB

Download
memory/1120-12-0x0000000010000000-0x000000001004F000-memory.dmp

Filesize
316KB

Download
memory/4908-3-0x0000000010000000-0x000000001004F000-memory.dmp

Filesize
316KB

Download
memory/4908-5-0x0000000010000000-0x000000001004F000-memory.dmp

Filesize
316KB

Download
memory/4908-6-0x0000000010000000-0x000000001004F000-memory.dmp

Filesize
316KB

Download
memory/4908-7-0x0000000010000000-0x000000001004F000-memory.dmp

Filesize
316KB

Download
memory/4908-11-0x0000000010000000-0x000000001004F000-memory.dmp

Filesize
316KB

Download

Analysis

Sharing