xtremerat | af641e6b1b8097472d553c1ae807f5fc6d87dbd1533b3a3ed5f00c8e48c610bc

General

Target
a2d9a6c78101d836f450861bfbd012f1.exe
Size 243KB
Sample240224-17vklaff99
SHA256 af641e6b1b8097472d553c1ae807f5fc6d87dbd1533b3a3ed5f00c8e48c610bc
MD5 a2d9a6c78101d836f450861bfbd012f1
SHA1 13c80ec185952332f50ed2d241dd9cb4fe5b455c
SHA512 e8ba32a8e4583bdf7e95b2b22a16d8b2303e98401200c7c7aca3df47a5996f1cb9d0800946fc6a308e2a1eb0816fa7a21bdb71b5ef63eb13bef7143e1d765e90
SSDEEP 3072:XFd2Afoka0uMMGYmKlMCJ+UrxkCkK9a7+Z3wCYdj8vK1HDvhk1eSkDyfCnewUmGX:1jQwuYKs7M3jvEu1nkaCneT3NmEQC
MD5 SHA1 SHA512 SSDEEP

Score

10^/10

xtremerat persistence rat spyware

Malware Config

Extracted

Family

xtremerat

C2

umtakcicek.dyndns.org
ࠁ谀umtakcicek.dyndns.org

Signatures

Detect XtremeRAT payload 9 IoCs

resource	yara_rule
behavioral2/memory/2692-3-0x0000000010000000-0x000000001004A000-memory.dmp	family_xtremerat
behavioral2/memory/2692-4-0x0000000010000000-0x000000001004A000-memory.dmp	family_xtremerat
behavioral2/memory/2692-6-0x0000000010000000-0x000000001004A000-memory.dmp	family_xtremerat
behavioral2/memory/2692-7-0x0000000010000000-0x000000001004A000-memory.dmp	family_xtremerat
behavioral2/memory/4812-8-0x0000000010000000-0x000000001004A000-memory.dmp	family_xtremerat
behavioral2/memory/2692-10-0x0000000010000000-0x000000001004A000-memory.dmp	family_xtremerat
behavioral2/memory/2692-11-0x0000000010000000-0x000000001004A000-memory.dmp	family_xtremerat
behavioral2/memory/4812-12-0x0000000010000000-0x000000001004A000-memory.dmp	family_xtremerat
behavioral2/memory/2692-13-0x0000000010000000-0x000000001004A000-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

Modifies Installed Components in the registry 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\MACHINE\Software\WOW6432Node\Microsoft\Active Setup\Installed Components\{R2WI1CKR-X553-362C-326D-0QL77F442L71}	a2d9a6c78101d836f450861bfbd012f1.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Active Setup\Installed Components\{R2WI1CKR-X553-362C-326D-0QL77F442L71}\StubPath = "C:\\Windows\\Windows Live Messenger\\msnmsgr.exe restart"	a2d9a6c78101d836f450861bfbd012f1.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-1392040655-2056082574-619088944-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Windows Live Messenger = "C:\\Windows\\Windows Live Messenger\\msnmsgr.exe"	a2d9a6c78101d836f450861bfbd012f1.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\Windows Live Messenger = "C:\\Windows\\Windows Live Messenger\\msnmsgr.exe"	a2d9a6c78101d836f450861bfbd012f1.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 3476 set thread context of 2692	3476	a2d9a6c78101d836f450861bfbd012f1.exe	85

Drops file in Windows directory 2 IoCs

description	ioc	Process
File opened for modification	C:\Windows\Windows Live Messenger\msnmsgr.exe	a2d9a6c78101d836f450861bfbd012f1.exe
File created	C:\Windows\Windows Live Messenger\msnmsgr.exe	a2d9a6c78101d836f450861bfbd012f1.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
3804	4812	WerFault.exe	87
4048	4812	WerFault.exe	87

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
3476	a2d9a6c78101d836f450861bfbd012f1.exe
2692	a2d9a6c78101d836f450861bfbd012f1.exe

Suspicious use of WriteProcessMemory 17 IoCs

description	pid	Process	procid_target
PID 3476 wrote to memory of 2692	3476	a2d9a6c78101d836f450861bfbd012f1.exe	85
PID 3476 wrote to memory of 2692	3476	a2d9a6c78101d836f450861bfbd012f1.exe	85
PID 3476 wrote to memory of 2692	3476	a2d9a6c78101d836f450861bfbd012f1.exe	85
PID 3476 wrote to memory of 2692	3476	a2d9a6c78101d836f450861bfbd012f1.exe	85
PID 3476 wrote to memory of 2692	3476	a2d9a6c78101d836f450861bfbd012f1.exe	85
PID 3476 wrote to memory of 2692	3476	a2d9a6c78101d836f450861bfbd012f1.exe	85
PID 3476 wrote to memory of 2692	3476	a2d9a6c78101d836f450861bfbd012f1.exe	85
PID 3476 wrote to memory of 2692	3476	a2d9a6c78101d836f450861bfbd012f1.exe	85
PID 3476 wrote to memory of 2692	3476	a2d9a6c78101d836f450861bfbd012f1.exe	85
PID 3476 wrote to memory of 2692	3476	a2d9a6c78101d836f450861bfbd012f1.exe	85
PID 3476 wrote to memory of 2692	3476	a2d9a6c78101d836f450861bfbd012f1.exe	85
PID 3476 wrote to memory of 2692	3476	a2d9a6c78101d836f450861bfbd012f1.exe	85
PID 3476 wrote to memory of 2692	3476	a2d9a6c78101d836f450861bfbd012f1.exe	85
PID 2692 wrote to memory of 4812	2692	a2d9a6c78101d836f450861bfbd012f1.exe	87
PID 2692 wrote to memory of 4812	2692	a2d9a6c78101d836f450861bfbd012f1.exe	87
PID 2692 wrote to memory of 4812	2692	a2d9a6c78101d836f450861bfbd012f1.exe	87
PID 2692 wrote to memory of 4812	2692	a2d9a6c78101d836f450861bfbd012f1.exe	87

C:\Users\Admin\AppData\Local\Temp\a2d9a6c78101d836f450861bfbd012f1.exe
"C:\Users\Admin\AppData\Local\Temp\a2d9a6c78101d836f450861bfbd012f1.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:3476
- C:\Users\Admin\AppData\Local\Temp\a2d9a6c78101d836f450861bfbd012f1.exe
  C:\Users\Admin\AppData\Local\Temp\a2d9a6c78101d836f450861bfbd012f1.exe
  2⤵
  - Modifies Installed Components in the registry
  - Adds Run key to start application
  - Drops file in Windows directory
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:2692
- - C:\Windows\SysWOW64\svchost.exe
    svchost.exe
    3⤵
    PID:4812
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 4812 -s 480
      4⤵
      Program crash
      PID:3804
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 4812 -s 488
      4⤵
      Program crash
      PID:4048

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 404 -p 4812 -ip 4812
1⤵
PID:2532

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 476 -p 4812 -ip 4812
1⤵
PID:4232

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

2

T1547

Registry Run Keys / Startup Folder

2

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

2

T1547

Registry Run Keys / Startup Folder

2

T1547.001

Defense Evasion

Modify Registry

2

T1112

Credential Access

Discovery

System Information Discovery

1

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

memory/2692-3-0x0000000010000000-0x000000001004A000-memory.dmp

Download

memory/2692-4-0x0000000010000000-0x000000001004A000-memory.dmp

Download

memory/2692-6-0x0000000010000000-0x000000001004A000-memory.dmp

Download

memory/2692-7-0x0000000010000000-0x000000001004A000-memory.dmp

Download

memory/2692-10-0x0000000010000000-0x000000001004A000-memory.dmp

Download

memory/2692-11-0x0000000010000000-0x000000001004A000-memory.dmp

Download

memory/2692-13-0x0000000010000000-0x000000001004A000-memory.dmp

Download

memory/3476-0-0x0000000000400000-0x0000000000508000-memory.dmp

Download

memory/3476-5-0x0000000000400000-0x0000000000508000-memory.dmp

Download

memory/4812-8-0x0000000010000000-0x000000001004A000-memory.dmp

Download

memory/4812-12-0x0000000010000000-0x000000001004A000-memory.dmp

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads