xtremerat | 821d80f825671cb06fed6630b7877c2e5896c48689a56271db294ee3fb62bb84

General

Target

821d80f825671cb06fed6630b7877c2e5896c48689a56271db294ee3fb62bb84.exe
Size

324KB
MD5

7ad28dbdd3fe54ac38835e29f72ba2cf
SHA1

95d91c3fd70005cb0a7472e37726b73deea4a436
SHA256

821d80f825671cb06fed6630b7877c2e5896c48689a56271db294ee3fb62bb84
SHA512

a19a9ccb628f11bb7b1ecefc0ff41ac4a70f3f09544362e856c3d7f5a7ef579d9a1f31acc5599438f85b307fbdab7c7f5417a4173f9db699e5abf36ef2be7ae3
SSDEEP

6144:QQZcZt6IlrCS1GuhAmUaLYeJj/8TD/TPcTzhTfMTqVTxRTCb/0QZG9DzkvduWZ0G:tZcuS1GlmUaLYeJj/8P/Lc3hbMWV1RWP

Score

10^/10

xtremerat discovery persistence rat spyware

Malware Config

Extracted

Family

xtremerat

C2

wwwwwww.zapto.org

Signatures

Detect XtremeRAT payload 7 IoCs

resource	yara_rule
behavioral2/memory/2292-4-0x0000000010000000-0x000000001004A000-memory.dmp	family_xtremerat
behavioral2/memory/2292-5-0x0000000010000000-0x000000001004A000-memory.dmp	family_xtremerat
behavioral2/memory/2292-6-0x0000000010000000-0x000000001004A000-memory.dmp	family_xtremerat
behavioral2/memory/2292-7-0x0000000010000000-0x000000001004A000-memory.dmp	family_xtremerat
behavioral2/memory/3636-8-0x0000000010000000-0x000000001004A000-memory.dmp	family_xtremerat
behavioral2/memory/2292-9-0x0000000010000000-0x000000001004A000-memory.dmp	family_xtremerat
behavioral2/memory/3636-10-0x0000000010000000-0x000000001004A000-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
Xtremerat family
xtremerat

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 5072 set thread context of 2292	5072	821d80f825671cb06fed6630b7877c2e5896c48689a56271db294ee3fb62bb84.exe	83

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
1440	3636	WerFault.exe	84
4620	3636	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	821d80f825671cb06fed6630b7877c2e5896c48689a56271db294ee3fb62bb84.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	821d80f825671cb06fed6630b7877c2e5896c48689a56271db294ee3fb62bb84.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
5072	821d80f825671cb06fed6630b7877c2e5896c48689a56271db294ee3fb62bb84.exe

Suspicious use of WriteProcessMemory 20 IoCs

description	pid	Process	procid_target
PID 5072 wrote to memory of 2292	5072	821d80f825671cb06fed6630b7877c2e5896c48689a56271db294ee3fb62bb84.exe	83
PID 5072 wrote to memory of 2292	5072	821d80f825671cb06fed6630b7877c2e5896c48689a56271db294ee3fb62bb84.exe	83
PID 5072 wrote to memory of 2292	5072	821d80f825671cb06fed6630b7877c2e5896c48689a56271db294ee3fb62bb84.exe	83
PID 5072 wrote to memory of 2292	5072	821d80f825671cb06fed6630b7877c2e5896c48689a56271db294ee3fb62bb84.exe	83
PID 5072 wrote to memory of 2292	5072	821d80f825671cb06fed6630b7877c2e5896c48689a56271db294ee3fb62bb84.exe	83
PID 5072 wrote to memory of 2292	5072	821d80f825671cb06fed6630b7877c2e5896c48689a56271db294ee3fb62bb84.exe	83
PID 5072 wrote to memory of 2292	5072	821d80f825671cb06fed6630b7877c2e5896c48689a56271db294ee3fb62bb84.exe	83
PID 5072 wrote to memory of 2292	5072	821d80f825671cb06fed6630b7877c2e5896c48689a56271db294ee3fb62bb84.exe	83
PID 5072 wrote to memory of 2292	5072	821d80f825671cb06fed6630b7877c2e5896c48689a56271db294ee3fb62bb84.exe	83
PID 5072 wrote to memory of 2292	5072	821d80f825671cb06fed6630b7877c2e5896c48689a56271db294ee3fb62bb84.exe	83
PID 5072 wrote to memory of 2292	5072	821d80f825671cb06fed6630b7877c2e5896c48689a56271db294ee3fb62bb84.exe	83
PID 5072 wrote to memory of 2292	5072	821d80f825671cb06fed6630b7877c2e5896c48689a56271db294ee3fb62bb84.exe	83
PID 5072 wrote to memory of 2292	5072	821d80f825671cb06fed6630b7877c2e5896c48689a56271db294ee3fb62bb84.exe	83
PID 2292 wrote to memory of 3636	2292	821d80f825671cb06fed6630b7877c2e5896c48689a56271db294ee3fb62bb84.exe	84
PID 2292 wrote to memory of 3636	2292	821d80f825671cb06fed6630b7877c2e5896c48689a56271db294ee3fb62bb84.exe	84
PID 2292 wrote to memory of 3636	2292	821d80f825671cb06fed6630b7877c2e5896c48689a56271db294ee3fb62bb84.exe	84
PID 2292 wrote to memory of 3636	2292	821d80f825671cb06fed6630b7877c2e5896c48689a56271db294ee3fb62bb84.exe	84
PID 2292 wrote to memory of 1632	2292	821d80f825671cb06fed6630b7877c2e5896c48689a56271db294ee3fb62bb84.exe	85
PID 2292 wrote to memory of 1632	2292	821d80f825671cb06fed6630b7877c2e5896c48689a56271db294ee3fb62bb84.exe	85
PID 2292 wrote to memory of 1632	2292	821d80f825671cb06fed6630b7877c2e5896c48689a56271db294ee3fb62bb84.exe	85

C:\Users\Admin\AppData\Local\Temp\821d80f825671cb06fed6630b7877c2e5896c48689a56271db294ee3fb62bb84.exe
"C:\Users\Admin\AppData\Local\Temp\821d80f825671cb06fed6630b7877c2e5896c48689a56271db294ee3fb62bb84.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:5072
- C:\Users\Admin\AppData\Local\Temp\821d80f825671cb06fed6630b7877c2e5896c48689a56271db294ee3fb62bb84.exe
  "C:\Users\Admin\AppData\Local\Temp\821d80f825671cb06fed6630b7877c2e5896c48689a56271db294ee3fb62bb84.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2292
- - C:\Windows\SysWOW64\svchost.exe
    svchost.exe
    3⤵
    - System Location Discovery: System Language Discovery
    PID:3636
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 3636 -s 484
      4⤵
      Program crash
      PID:1440
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 3636 -s 504
      4⤵
      Program crash
      PID:4620
- - C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
    "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe"
    3⤵
    PID:1632

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 420 -p 3636 -ip 3636
1⤵
PID:3372

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 536 -p 3636 -ip 3636
1⤵
PID:4532

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/2292-4-0x0000000010000000-0x000000001004A000-memory.dmp

Filesize
296KB

Download
memory/2292-5-0x0000000010000000-0x000000001004A000-memory.dmp

Filesize
296KB

Download
memory/2292-6-0x0000000010000000-0x000000001004A000-memory.dmp

Filesize
296KB

Download
memory/2292-7-0x0000000010000000-0x000000001004A000-memory.dmp

Filesize
296KB

Download
memory/2292-9-0x0000000010000000-0x000000001004A000-memory.dmp

Filesize
296KB

Download
memory/3636-8-0x0000000010000000-0x000000001004A000-memory.dmp

Filesize
296KB

Download
memory/3636-10-0x0000000010000000-0x000000001004A000-memory.dmp

Filesize
296KB

Download
memory/5072-0-0x0000000000400000-0x00000000009B446A-memory.dmp

Filesize
5.7MB

Download
memory/5072-1-0x0000000000C60000-0x0000000000C62000-memory.dmp

Filesize
8KB

Download
memory/5072-11-0x0000000000400000-0x00000000009B446A-memory.dmp

Filesize
5.7MB

Download
memory/5072-12-0x0000000000C60000-0x0000000000C62000-memory.dmp

Filesize
8KB

Download

Analysis

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