xtremerat | f13fe25f6ca305b3f8064e8e31420909055157a2edab59f022324e82c34c8c9a

General

Target

f13fe25f6ca305b3f8064e8e31420909055157a2edab59f022324e82c34c8c9a.exe
Size

1.4MB
MD5

739211836e07f77990d47bffd200b91e
SHA1

7eeb5122c832743a378f3adef78b337b11069cb3
SHA256

f13fe25f6ca305b3f8064e8e31420909055157a2edab59f022324e82c34c8c9a
SHA512

6085147fb90d28cabde81baa571f5a81acdb24b02ea61477a78418319e491e21954e4e2c927ed54c6df3d774a7ac34b4a84aad01c64ad86c5b32ef1b1bc33214
SSDEEP

24576:+tkg5IKOsopEeMAMgiMWPtS3L65Jcr1lK13:vJKOsopZMAMkfW5ePK13

Score

10^/10

xtremerat persistence rat spyware upx

Malware Config

Extracted

Family

xtremerat

C2

xxtreme.no-ip.org

Signatures

Detect XtremeRAT payload 5 IoCs

resource	yara_rule
behavioral2/memory/2564-145-0x0000000010000000-0x000000001004E000-memory.dmp	family_xtremerat
behavioral2/memory/1932-146-0x0000000000000000-mapping.dmp	family_xtremerat
behavioral2/memory/2564-147-0x0000000010000000-0x000000001004E000-memory.dmp	family_xtremerat
behavioral2/memory/1932-148-0x0000000010000000-0x000000001004E000-memory.dmp	family_xtremerat
behavioral2/memory/2564-149-0x0000000010000000-0x000000001004E000-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

UPX packed file 6 IoCs

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

upx

resource	yara_rule
behavioral2/memory/2564-142-0x0000000010000000-0x000000001004E000-memory.dmp	upx
behavioral2/memory/2564-144-0x0000000010000000-0x000000001004E000-memory.dmp	upx
behavioral2/memory/2564-145-0x0000000010000000-0x000000001004E000-memory.dmp	upx
behavioral2/memory/2564-147-0x0000000010000000-0x000000001004E000-memory.dmp	upx
behavioral2/memory/1932-148-0x0000000010000000-0x000000001004E000-memory.dmp	upx
behavioral2/memory/2564-149-0x0000000010000000-0x000000001004E000-memory.dmp	upx

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 5080 set thread context of 2564	5080	f13fe25f6ca305b3f8064e8e31420909055157a2edab59f022324e82c34c8c9a.exe	79

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082

Program crash 2 IoCs

pid	pid_target	Process	procid_target
4864	1932	WerFault.exe	80
4868	1932	WerFault.exe	80

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
5080	f13fe25f6ca305b3f8064e8e31420909055157a2edab59f022324e82c34c8c9a.exe

Suspicious use of WriteProcessMemory 16 IoCs

description	pid	Process	procid_target
PID 5080 wrote to memory of 2564	5080	f13fe25f6ca305b3f8064e8e31420909055157a2edab59f022324e82c34c8c9a.exe	79
PID 5080 wrote to memory of 2564	5080	f13fe25f6ca305b3f8064e8e31420909055157a2edab59f022324e82c34c8c9a.exe	79
PID 5080 wrote to memory of 2564	5080	f13fe25f6ca305b3f8064e8e31420909055157a2edab59f022324e82c34c8c9a.exe	79
PID 5080 wrote to memory of 2564	5080	f13fe25f6ca305b3f8064e8e31420909055157a2edab59f022324e82c34c8c9a.exe	79
PID 5080 wrote to memory of 2564	5080	f13fe25f6ca305b3f8064e8e31420909055157a2edab59f022324e82c34c8c9a.exe	79
PID 5080 wrote to memory of 2564	5080	f13fe25f6ca305b3f8064e8e31420909055157a2edab59f022324e82c34c8c9a.exe	79
PID 5080 wrote to memory of 2564	5080	f13fe25f6ca305b3f8064e8e31420909055157a2edab59f022324e82c34c8c9a.exe	79
PID 5080 wrote to memory of 2564	5080	f13fe25f6ca305b3f8064e8e31420909055157a2edab59f022324e82c34c8c9a.exe	79
PID 5080 wrote to memory of 2564	5080	f13fe25f6ca305b3f8064e8e31420909055157a2edab59f022324e82c34c8c9a.exe	79
PID 2564 wrote to memory of 1932	2564	f13fe25f6ca305b3f8064e8e31420909055157a2edab59f022324e82c34c8c9a.exe	80
PID 2564 wrote to memory of 1932	2564	f13fe25f6ca305b3f8064e8e31420909055157a2edab59f022324e82c34c8c9a.exe	80
PID 2564 wrote to memory of 1932	2564	f13fe25f6ca305b3f8064e8e31420909055157a2edab59f022324e82c34c8c9a.exe	80
PID 2564 wrote to memory of 1932	2564	f13fe25f6ca305b3f8064e8e31420909055157a2edab59f022324e82c34c8c9a.exe	80
PID 2564 wrote to memory of 4464	2564	f13fe25f6ca305b3f8064e8e31420909055157a2edab59f022324e82c34c8c9a.exe	81
PID 2564 wrote to memory of 4464	2564	f13fe25f6ca305b3f8064e8e31420909055157a2edab59f022324e82c34c8c9a.exe	81
PID 2564 wrote to memory of 4464	2564	f13fe25f6ca305b3f8064e8e31420909055157a2edab59f022324e82c34c8c9a.exe	81

C:\Users\Admin\AppData\Local\Temp\f13fe25f6ca305b3f8064e8e31420909055157a2edab59f022324e82c34c8c9a.exe
"C:\Users\Admin\AppData\Local\Temp\f13fe25f6ca305b3f8064e8e31420909055157a2edab59f022324e82c34c8c9a.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:5080
- C:\Users\Admin\AppData\Local\Temp\f13fe25f6ca305b3f8064e8e31420909055157a2edab59f022324e82c34c8c9a.exe
  "C:\Users\Admin\AppData\Local\Temp\f13fe25f6ca305b3f8064e8e31420909055157a2edab59f022324e82c34c8c9a.exe"
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:2564
- - C:\Windows\SysWOW64\svchost.exe
    svchost.exe
    3⤵
    PID:1932
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 1932 -s 480
      4⤵
      Program crash
      PID:4864
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 1932 -s 488
      4⤵
      Program crash
      PID:4868
- - C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
    "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe"
    3⤵
    PID:4464

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 188 -p 1932 -ip 1932
1⤵
PID:4876

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 520 -p 1932 -ip 1932
1⤵
PID:4800

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

1

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/1932-148-0x0000000010000000-0x000000001004E000-memory.dmp

Filesize
312KB

Download
memory/2564-149-0x0000000010000000-0x000000001004E000-memory.dmp

Filesize
312KB

Download
memory/2564-147-0x0000000010000000-0x000000001004E000-memory.dmp

Filesize
312KB

Download
memory/2564-145-0x0000000010000000-0x000000001004E000-memory.dmp

Filesize
312KB

Download
memory/2564-144-0x0000000010000000-0x000000001004E000-memory.dmp

Filesize
312KB

Download
memory/2564-142-0x0000000010000000-0x000000001004E000-memory.dmp

Filesize
312KB

Download
memory/5080-136-0x0000000002180000-0x0000000002190000-memory.dmp

Filesize
64KB

Download
memory/5080-140-0x00000000021C0000-0x00000000021D0000-memory.dmp

Filesize
64KB

Download
memory/5080-139-0x00000000021B0000-0x00000000021C0000-memory.dmp

Filesize
64KB

Download
memory/5080-138-0x00000000021A0000-0x00000000021B0000-memory.dmp

Filesize
64KB

Download
memory/5080-137-0x0000000002190000-0x00000000021A0000-memory.dmp

Filesize
64KB

Download
memory/5080-132-0x00000000006C0000-0x00000000006D0000-memory.dmp

Filesize
64KB

Download
memory/5080-135-0x0000000002170000-0x0000000002180000-memory.dmp

Filesize
64KB

Download
memory/5080-134-0x00000000006E0000-0x00000000006F0000-memory.dmp

Filesize
64KB

Download
memory/5080-133-0x00000000006D0000-0x00000000006E0000-memory.dmp

Filesize
64KB

Download

Analysis

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