xtremerat | ac13208a40f105f511d2185b4712599a3041cd188ff18b8693d55dc74a32f692

General

Target

ac13208a40f105f511d2185b4712599a3041cd188ff18b8693d55dc74a32f692.exe
Size

256KB
MD5

23e402752135e6088a8c7b8d2e22749d
SHA1

33f88f7b9f393d8c130303f1d55d3a96564e6a32
SHA256

ac13208a40f105f511d2185b4712599a3041cd188ff18b8693d55dc74a32f692
SHA512

07aa02d7b6a162667e214c384a6f61bdf31421c3346dc87f2587a74daa2c1822f9a0e95f5b78d928b1b17c156303bc25be4b5ab3144b356cf31371a702c511e2
SSDEEP

3072:L9rfiQUSKDtXxJGPztG1U9VhIHZ+U9yB+M1/y2tVjjPvmtgq7I:hDc1U9VhIHZ+U9yoMc0jjPvmtgp

Score

10^/10

xtremerat discovery persistence rat spyware upx

Malware Config

Extracted

Family

xtremerat

C2

ssaaiq.no-ip.org

Signatures

Detect XtremeRAT payload 5 IoCs

resource	yara_rule
behavioral2/memory/2264-5-0x0000000010000000-0x000000001004D000-memory.dmp	family_xtremerat
behavioral2/memory/2264-6-0x0000000010000000-0x000000001004D000-memory.dmp	family_xtremerat
behavioral2/memory/4604-7-0x0000000010000000-0x000000001004D000-memory.dmp	family_xtremerat
behavioral2/memory/2264-8-0x0000000010000000-0x000000001004D000-memory.dmp	family_xtremerat
behavioral2/memory/4604-9-0x0000000010000000-0x000000001004D000-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 116 set thread context of 2264	116	ac13208a40f105f511d2185b4712599a3041cd188ff18b8693d55dc74a32f692.exe	83

UPX packed file 7 IoCs

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

upx

resource	yara_rule
behavioral2/memory/2264-2-0x0000000010000000-0x000000001004D000-memory.dmp	upx
behavioral2/memory/2264-4-0x0000000010000000-0x000000001004D000-memory.dmp	upx
behavioral2/memory/2264-5-0x0000000010000000-0x000000001004D000-memory.dmp	upx
behavioral2/memory/2264-6-0x0000000010000000-0x000000001004D000-memory.dmp	upx
behavioral2/memory/4604-7-0x0000000010000000-0x000000001004D000-memory.dmp	upx
behavioral2/memory/2264-8-0x0000000010000000-0x000000001004D000-memory.dmp	upx
behavioral2/memory/4604-9-0x0000000010000000-0x000000001004D000-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
324	4604	WerFault.exe	84
4884	4604	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	ac13208a40f105f511d2185b4712599a3041cd188ff18b8693d55dc74a32f692.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	ac13208a40f105f511d2185b4712599a3041cd188ff18b8693d55dc74a32f692.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
116	ac13208a40f105f511d2185b4712599a3041cd188ff18b8693d55dc74a32f692.exe

Suspicious use of WriteProcessMemory 15 IoCs

description	pid	Process	procid_target
PID 116 wrote to memory of 2264	116	ac13208a40f105f511d2185b4712599a3041cd188ff18b8693d55dc74a32f692.exe	83
PID 116 wrote to memory of 2264	116	ac13208a40f105f511d2185b4712599a3041cd188ff18b8693d55dc74a32f692.exe	83
PID 116 wrote to memory of 2264	116	ac13208a40f105f511d2185b4712599a3041cd188ff18b8693d55dc74a32f692.exe	83
PID 116 wrote to memory of 2264	116	ac13208a40f105f511d2185b4712599a3041cd188ff18b8693d55dc74a32f692.exe	83
PID 116 wrote to memory of 2264	116	ac13208a40f105f511d2185b4712599a3041cd188ff18b8693d55dc74a32f692.exe	83
PID 116 wrote to memory of 2264	116	ac13208a40f105f511d2185b4712599a3041cd188ff18b8693d55dc74a32f692.exe	83
PID 116 wrote to memory of 2264	116	ac13208a40f105f511d2185b4712599a3041cd188ff18b8693d55dc74a32f692.exe	83
PID 116 wrote to memory of 2264	116	ac13208a40f105f511d2185b4712599a3041cd188ff18b8693d55dc74a32f692.exe	83
PID 2264 wrote to memory of 4604	2264	ac13208a40f105f511d2185b4712599a3041cd188ff18b8693d55dc74a32f692.exe	84
PID 2264 wrote to memory of 4604	2264	ac13208a40f105f511d2185b4712599a3041cd188ff18b8693d55dc74a32f692.exe	84
PID 2264 wrote to memory of 4604	2264	ac13208a40f105f511d2185b4712599a3041cd188ff18b8693d55dc74a32f692.exe	84
PID 2264 wrote to memory of 4604	2264	ac13208a40f105f511d2185b4712599a3041cd188ff18b8693d55dc74a32f692.exe	84
PID 2264 wrote to memory of 4020	2264	ac13208a40f105f511d2185b4712599a3041cd188ff18b8693d55dc74a32f692.exe	85
PID 2264 wrote to memory of 4020	2264	ac13208a40f105f511d2185b4712599a3041cd188ff18b8693d55dc74a32f692.exe	85
PID 2264 wrote to memory of 4020	2264	ac13208a40f105f511d2185b4712599a3041cd188ff18b8693d55dc74a32f692.exe	85

C:\Users\Admin\AppData\Local\Temp\ac13208a40f105f511d2185b4712599a3041cd188ff18b8693d55dc74a32f692.exe
"C:\Users\Admin\AppData\Local\Temp\ac13208a40f105f511d2185b4712599a3041cd188ff18b8693d55dc74a32f692.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:116
- C:\Users\Admin\AppData\Local\Temp\ac13208a40f105f511d2185b4712599a3041cd188ff18b8693d55dc74a32f692.exe
  C:\Users\Admin\AppData\Local\Temp\ac13208a40f105f511d2185b4712599a3041cd188ff18b8693d55dc74a32f692.exe
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2264
- - C:\Windows\SysWOW64\svchost.exe
    svchost.exe
    3⤵
    - System Location Discovery: System Language Discovery
    PID:4604
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 4604 -s 488
      4⤵
      Program crash
      PID:324
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 4604 -s 508
      4⤵
      Program crash
      PID:4884
- - C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
    "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe"
    3⤵
    PID:4020

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 4604 -ip 4604
1⤵
PID:5112

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 516 -p 4604 -ip 4604
1⤵
PID:4712

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/2264-2-0x0000000010000000-0x000000001004D000-memory.dmp

Filesize
308KB

Download
memory/2264-4-0x0000000010000000-0x000000001004D000-memory.dmp

Filesize
308KB

Download
memory/2264-5-0x0000000010000000-0x000000001004D000-memory.dmp

Filesize
308KB

Download
memory/2264-6-0x0000000010000000-0x000000001004D000-memory.dmp

Filesize
308KB

Download
memory/2264-8-0x0000000010000000-0x000000001004D000-memory.dmp

Filesize
308KB

Download
memory/4604-7-0x0000000010000000-0x000000001004D000-memory.dmp

Filesize
308KB

Download
memory/4604-9-0x0000000010000000-0x000000001004D000-memory.dmp

Filesize
308KB

Download

Analysis

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