xtremerat | 61e523ca922591d4460fb3c63ec4627583bbd74e2d5b37172ce762347a946ebe

General

Target

JaffaCakes118_243454c6a2775a2415011b97598ed4d2.exe
Size

105KB
MD5

243454c6a2775a2415011b97598ed4d2
SHA1

29659d159499ca93f3c75a640fa9b89cd46fdd7d
SHA256

61e523ca922591d4460fb3c63ec4627583bbd74e2d5b37172ce762347a946ebe
SHA512

05340d150711a8c49fd259f7c0e0a1ee33cacd6839642842e482f0e3fcdcf44eeec66b7b33131ab71e576b5f744dc0fdb64d3bda4e419fb2ceb65350a1a64264
SSDEEP

1536:Ss/psfKLveiUj+UgapkUbl+Wg1liDzssei13OzJbYhXh7dBemgKYHLHl2yODxle2:r/cyelTpkUbQW8yiiFxhEmg9HLH3sxl

Score

10^/10

xtremerat discovery persistence rat spyware upx

Malware Config

Extracted

Family

xtremerat

C2

mmsalti.no-ip.org

Signatures

Detect XtremeRAT payload 5 IoCs

resource	yara_rule
behavioral2/memory/2988-10-0x0000000010000000-0x0000000010052000-memory.dmp	family_xtremerat
behavioral2/memory/2988-11-0x0000000010000000-0x0000000010052000-memory.dmp	family_xtremerat
behavioral2/memory/2764-12-0x0000000010000000-0x0000000010052000-memory.dmp	family_xtremerat
behavioral2/memory/2988-15-0x0000000010000000-0x0000000010052000-memory.dmp	family_xtremerat
behavioral2/memory/2764-16-0x0000000010000000-0x0000000010052000-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 436 set thread context of 2988	436	JaffaCakes118_243454c6a2775a2415011b97598ed4d2.exe	83

UPX packed file 7 IoCs

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

upx

resource	yara_rule
behavioral2/memory/2988-5-0x0000000010000000-0x0000000010052000-memory.dmp	upx
behavioral2/memory/2988-9-0x0000000010000000-0x0000000010052000-memory.dmp	upx
behavioral2/memory/2988-10-0x0000000010000000-0x0000000010052000-memory.dmp	upx
behavioral2/memory/2988-11-0x0000000010000000-0x0000000010052000-memory.dmp	upx
behavioral2/memory/2764-12-0x0000000010000000-0x0000000010052000-memory.dmp	upx
behavioral2/memory/2988-15-0x0000000010000000-0x0000000010052000-memory.dmp	upx
behavioral2/memory/2764-16-0x0000000010000000-0x0000000010052000-memory.dmp	upx

Drops file in Windows directory 2 IoCs

description	ioc	Process
File created	C:\Windows\191507_get-her-to-have-dirty-sex-flash.jpg.exe	JaffaCakes118_243454c6a2775a2415011b97598ed4d2.exe
File created	C:\Windows\191507_get-her-to-have-dirty-sex-flash.jpg	JaffaCakes118_243454c6a2775a2415011b97598ed4d2.exe

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
212	2764	WerFault.exe	84
3540	2764	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	JaffaCakes118_243454c6a2775a2415011b97598ed4d2.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_243454c6a2775a2415011b97598ed4d2.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
436	JaffaCakes118_243454c6a2775a2415011b97598ed4d2.exe

Suspicious use of WriteProcessMemory 15 IoCs

description	pid	Process	procid_target
PID 436 wrote to memory of 2988	436	JaffaCakes118_243454c6a2775a2415011b97598ed4d2.exe	83
PID 436 wrote to memory of 2988	436	JaffaCakes118_243454c6a2775a2415011b97598ed4d2.exe	83
PID 436 wrote to memory of 2988	436	JaffaCakes118_243454c6a2775a2415011b97598ed4d2.exe	83
PID 436 wrote to memory of 2988	436	JaffaCakes118_243454c6a2775a2415011b97598ed4d2.exe	83
PID 436 wrote to memory of 2988	436	JaffaCakes118_243454c6a2775a2415011b97598ed4d2.exe	83
PID 436 wrote to memory of 2988	436	JaffaCakes118_243454c6a2775a2415011b97598ed4d2.exe	83
PID 436 wrote to memory of 2988	436	JaffaCakes118_243454c6a2775a2415011b97598ed4d2.exe	83
PID 436 wrote to memory of 2988	436	JaffaCakes118_243454c6a2775a2415011b97598ed4d2.exe	83
PID 2988 wrote to memory of 2764	2988	JaffaCakes118_243454c6a2775a2415011b97598ed4d2.exe	84
PID 2988 wrote to memory of 2764	2988	JaffaCakes118_243454c6a2775a2415011b97598ed4d2.exe	84
PID 2988 wrote to memory of 2764	2988	JaffaCakes118_243454c6a2775a2415011b97598ed4d2.exe	84
PID 2988 wrote to memory of 2764	2988	JaffaCakes118_243454c6a2775a2415011b97598ed4d2.exe	84
PID 2988 wrote to memory of 2468	2988	JaffaCakes118_243454c6a2775a2415011b97598ed4d2.exe	85
PID 2988 wrote to memory of 2468	2988	JaffaCakes118_243454c6a2775a2415011b97598ed4d2.exe	85
PID 2988 wrote to memory of 2468	2988	JaffaCakes118_243454c6a2775a2415011b97598ed4d2.exe	85

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_243454c6a2775a2415011b97598ed4d2.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_243454c6a2775a2415011b97598ed4d2.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:436
- C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_243454c6a2775a2415011b97598ed4d2.exe
  C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_243454c6a2775a2415011b97598ed4d2.exe
  2⤵
  - Drops file in Windows directory
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2988
- - C:\Windows\SysWOW64\svchost.exe
    svchost.exe
    3⤵
    - System Location Discovery: System Language Discovery
    PID:2764
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 2764 -s 480
      4⤵
      Program crash
      PID:212
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 2764 -s 504
      4⤵
      Program crash
      PID:3540
- - C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
    "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe"
    3⤵
    PID:2468

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 2764 -ip 2764
1⤵
PID:964

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 540 -p 2764 -ip 2764
1⤵
PID:1612

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/436-0-0x0000000000400000-0x0000000000436000-memory.dmp

Filesize
216KB

Download
memory/436-1-0x00000000001C0000-0x00000000001C3000-memory.dmp

Filesize
12KB

Download
memory/436-8-0x0000000000400000-0x0000000000436000-memory.dmp

Filesize
216KB

Download
memory/2764-12-0x0000000010000000-0x0000000010052000-memory.dmp

Filesize
328KB

Download
memory/2764-16-0x0000000010000000-0x0000000010052000-memory.dmp

Filesize
328KB

Download
memory/2988-5-0x0000000010000000-0x0000000010052000-memory.dmp

Filesize
328KB

Download
memory/2988-9-0x0000000010000000-0x0000000010052000-memory.dmp

Filesize
328KB

Download
memory/2988-10-0x0000000010000000-0x0000000010052000-memory.dmp

Filesize
328KB

Download
memory/2988-11-0x0000000010000000-0x0000000010052000-memory.dmp

Filesize
328KB

Download
memory/2988-15-0x0000000010000000-0x0000000010052000-memory.dmp

Filesize
328KB

Download

Analysis

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