xtremerat | 44e782b54cae0368d435966bc0289c44e37b6fae17022bbb0eef32350fd98f1a

General

Target

JaffaCakes118_7a0e2cea3f47bd9479b37bc0a4b89969.exe
Size

112KB
MD5

7a0e2cea3f47bd9479b37bc0a4b89969
SHA1

85259147af9a72f40933c5e4c98b902e1b145d1d
SHA256

44e782b54cae0368d435966bc0289c44e37b6fae17022bbb0eef32350fd98f1a
SHA512

b8c76057cda66573779133648498aeebe76cbc3df30085b63beeff8a4cf670cef273113ca883dde9fb04e7f009eb6ade692a9046d6f52d8293823ad083f2c18c
SSDEEP

1536:0jrHi6anpAaoj9HDekSx9hFbP8xjEN14Ur9vMbAF9EHQSFj:grHi7npAaojNusEN14+k8FSH/

Score

10^/10

xtremerat discovery persistence rat spyware upx

Malware Config

Extracted

Family

xtremerat

C2

whatever123.sytes.net

Signatures

Detect XtremeRAT payload 5 IoCs

resource	yara_rule
behavioral2/memory/3068-5-0x0000000010000000-0x000000001004D000-memory.dmp	family_xtremerat
behavioral2/memory/3068-6-0x0000000010000000-0x000000001004D000-memory.dmp	family_xtremerat
behavioral2/memory/4448-7-0x0000000010000000-0x000000001004D000-memory.dmp	family_xtremerat
behavioral2/memory/3068-8-0x0000000010000000-0x000000001004D000-memory.dmp	family_xtremerat
behavioral2/memory/4448-10-0x0000000010000000-0x000000001004D000-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 2404 set thread context of 3068	2404	JaffaCakes118_7a0e2cea3f47bd9479b37bc0a4b89969.exe	85

UPX packed file 7 IoCs

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

upx

resource	yara_rule
behavioral2/memory/3068-2-0x0000000010000000-0x000000001004D000-memory.dmp	upx
behavioral2/memory/3068-4-0x0000000010000000-0x000000001004D000-memory.dmp	upx
behavioral2/memory/3068-5-0x0000000010000000-0x000000001004D000-memory.dmp	upx
behavioral2/memory/3068-6-0x0000000010000000-0x000000001004D000-memory.dmp	upx
behavioral2/memory/4448-7-0x0000000010000000-0x000000001004D000-memory.dmp	upx
behavioral2/memory/3068-8-0x0000000010000000-0x000000001004D000-memory.dmp	upx
behavioral2/memory/4448-10-0x0000000010000000-0x000000001004D000-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
436	4448	WerFault.exe	87
4524	4448	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_7a0e2cea3f47bd9479b37bc0a4b89969.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_7a0e2cea3f47bd9479b37bc0a4b89969.EXE
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
2404	JaffaCakes118_7a0e2cea3f47bd9479b37bc0a4b89969.exe

Suspicious use of WriteProcessMemory 15 IoCs

description	pid	Process	procid_target
PID 2404 wrote to memory of 3068	2404	JaffaCakes118_7a0e2cea3f47bd9479b37bc0a4b89969.exe	85
PID 2404 wrote to memory of 3068	2404	JaffaCakes118_7a0e2cea3f47bd9479b37bc0a4b89969.exe	85
PID 2404 wrote to memory of 3068	2404	JaffaCakes118_7a0e2cea3f47bd9479b37bc0a4b89969.exe	85
PID 2404 wrote to memory of 3068	2404	JaffaCakes118_7a0e2cea3f47bd9479b37bc0a4b89969.exe	85
PID 2404 wrote to memory of 3068	2404	JaffaCakes118_7a0e2cea3f47bd9479b37bc0a4b89969.exe	85
PID 2404 wrote to memory of 3068	2404	JaffaCakes118_7a0e2cea3f47bd9479b37bc0a4b89969.exe	85
PID 2404 wrote to memory of 3068	2404	JaffaCakes118_7a0e2cea3f47bd9479b37bc0a4b89969.exe	85
PID 2404 wrote to memory of 3068	2404	JaffaCakes118_7a0e2cea3f47bd9479b37bc0a4b89969.exe	85
PID 3068 wrote to memory of 4448	3068	JaffaCakes118_7a0e2cea3f47bd9479b37bc0a4b89969.EXE	87
PID 3068 wrote to memory of 4448	3068	JaffaCakes118_7a0e2cea3f47bd9479b37bc0a4b89969.EXE	87
PID 3068 wrote to memory of 4448	3068	JaffaCakes118_7a0e2cea3f47bd9479b37bc0a4b89969.EXE	87
PID 3068 wrote to memory of 4448	3068	JaffaCakes118_7a0e2cea3f47bd9479b37bc0a4b89969.EXE	87
PID 3068 wrote to memory of 4516	3068	JaffaCakes118_7a0e2cea3f47bd9479b37bc0a4b89969.EXE	88
PID 3068 wrote to memory of 4516	3068	JaffaCakes118_7a0e2cea3f47bd9479b37bc0a4b89969.EXE	88
PID 3068 wrote to memory of 4516	3068	JaffaCakes118_7a0e2cea3f47bd9479b37bc0a4b89969.EXE	88

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_7a0e2cea3f47bd9479b37bc0a4b89969.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_7a0e2cea3f47bd9479b37bc0a4b89969.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2404
- C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_7a0e2cea3f47bd9479b37bc0a4b89969.EXE
  "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_7a0e2cea3f47bd9479b37bc0a4b89969.EXE"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:3068
- - C:\Windows\SysWOW64\svchost.exe
    svchost.exe
    3⤵
    - System Location Discovery: System Language Discovery
    PID:4448
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 4448 -s 488
      4⤵
      Program crash
      PID:436
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 4448 -s 508
      4⤵
      Program crash
      PID:4524
- - C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
    "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe"
    3⤵
    PID:4516

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 4448 -ip 4448
1⤵
PID:4940

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 548 -p 4448 -ip 4448
1⤵
PID:1176

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/3068-2-0x0000000010000000-0x000000001004D000-memory.dmp

Filesize
308KB

Download
memory/3068-4-0x0000000010000000-0x000000001004D000-memory.dmp

Filesize
308KB

Download
memory/3068-5-0x0000000010000000-0x000000001004D000-memory.dmp

Filesize
308KB

Download
memory/3068-6-0x0000000010000000-0x000000001004D000-memory.dmp

Filesize
308KB

Download
memory/3068-8-0x0000000010000000-0x000000001004D000-memory.dmp

Filesize
308KB

Download
memory/4448-7-0x0000000010000000-0x000000001004D000-memory.dmp

Filesize
308KB

Download
memory/4448-10-0x0000000010000000-0x000000001004D000-memory.dmp

Filesize
308KB

Download

Analysis

Sharing