xtremerat | 919b080c6200fbf05a741ec572f077b116d87849fa595d90daa6537e3f9cbaf3

General

Target

919b080c6200fbf05a741ec572f077b116d87849fa595d90daa6537e3f9cbaf3.exe
Size

537KB
MD5

8c9baa45fb37a6c89cb9861dcc8d2f1f
SHA1

65342cfdd656011df268269cfa07f93d351bca00
SHA256

919b080c6200fbf05a741ec572f077b116d87849fa595d90daa6537e3f9cbaf3
SHA512

f76cfa6dab53abc804285780d52c4608a11b90461930ea03d11e2b3a58c89d67254f2b1e4f25adabc38156dab9aaaecc8298f8b2f9b4dddfa15fb5d8a0039f0b
SSDEEP

12288:UoS493ACIl7vI1kiqHNnyVek/a4QmHNX467p9KMSL8vbfcF3baixe/:UoIjIbgyLC495467zKMRzcVei4/

Score

10^/10

xtremerat persistence rat spyware upx

Malware Config

Extracted

Family

xtremerat

C2

maradona.no-ip.org

Signatures

Detect XtremeRAT payload 5 IoCs

resource	yara_rule
behavioral2/memory/2160-141-0x0000000010000000-0x000000001004E000-memory.dmp	family_xtremerat
behavioral2/memory/5088-143-0x0000000000000000-mapping.dmp	family_xtremerat
behavioral2/memory/5088-144-0x0000000010000000-0x000000001004E000-memory.dmp	family_xtremerat
behavioral2/memory/2160-145-0x0000000010000000-0x000000001004E000-memory.dmp	family_xtremerat
behavioral2/memory/5088-146-0x0000000010000000-0x000000001004E000-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 7 IoCs

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

upx

resource	yara_rule
behavioral2/memory/2160-136-0x0000000010000000-0x000000001004E000-memory.dmp	upx
behavioral2/memory/2160-138-0x0000000010000000-0x000000001004E000-memory.dmp	upx
behavioral2/memory/2160-141-0x0000000010000000-0x000000001004E000-memory.dmp	upx
behavioral2/memory/2160-140-0x0000000010000000-0x000000001004E000-memory.dmp	upx
behavioral2/memory/5088-144-0x0000000010000000-0x000000001004E000-memory.dmp	upx
behavioral2/memory/2160-145-0x0000000010000000-0x000000001004E000-memory.dmp	upx
behavioral2/memory/5088-146-0x0000000010000000-0x000000001004E000-memory.dmp	upx

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 5060 set thread context of 2160	5060	919b080c6200fbf05a741ec572f077b116d87849fa595d90daa6537e3f9cbaf3.exe	82

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
3524	5088	WerFault.exe	83
2772	5088	WerFault.exe	83

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
5060	919b080c6200fbf05a741ec572f077b116d87849fa595d90daa6537e3f9cbaf3.exe

Suspicious use of WriteProcessMemory 16 IoCs

description	pid	Process	procid_target
PID 5060 wrote to memory of 2160	5060	919b080c6200fbf05a741ec572f077b116d87849fa595d90daa6537e3f9cbaf3.exe	82
PID 5060 wrote to memory of 2160	5060	919b080c6200fbf05a741ec572f077b116d87849fa595d90daa6537e3f9cbaf3.exe	82
PID 5060 wrote to memory of 2160	5060	919b080c6200fbf05a741ec572f077b116d87849fa595d90daa6537e3f9cbaf3.exe	82
PID 5060 wrote to memory of 2160	5060	919b080c6200fbf05a741ec572f077b116d87849fa595d90daa6537e3f9cbaf3.exe	82
PID 5060 wrote to memory of 2160	5060	919b080c6200fbf05a741ec572f077b116d87849fa595d90daa6537e3f9cbaf3.exe	82
PID 5060 wrote to memory of 2160	5060	919b080c6200fbf05a741ec572f077b116d87849fa595d90daa6537e3f9cbaf3.exe	82
PID 5060 wrote to memory of 2160	5060	919b080c6200fbf05a741ec572f077b116d87849fa595d90daa6537e3f9cbaf3.exe	82
PID 5060 wrote to memory of 2160	5060	919b080c6200fbf05a741ec572f077b116d87849fa595d90daa6537e3f9cbaf3.exe	82
PID 5060 wrote to memory of 2160	5060	919b080c6200fbf05a741ec572f077b116d87849fa595d90daa6537e3f9cbaf3.exe	82
PID 2160 wrote to memory of 5088	2160	919b080c6200fbf05a741ec572f077b116d87849fa595d90daa6537e3f9cbaf3.exe	83
PID 2160 wrote to memory of 5088	2160	919b080c6200fbf05a741ec572f077b116d87849fa595d90daa6537e3f9cbaf3.exe	83
PID 2160 wrote to memory of 5088	2160	919b080c6200fbf05a741ec572f077b116d87849fa595d90daa6537e3f9cbaf3.exe	83
PID 2160 wrote to memory of 5088	2160	919b080c6200fbf05a741ec572f077b116d87849fa595d90daa6537e3f9cbaf3.exe	83
PID 2160 wrote to memory of 3616	2160	919b080c6200fbf05a741ec572f077b116d87849fa595d90daa6537e3f9cbaf3.exe	84
PID 2160 wrote to memory of 3616	2160	919b080c6200fbf05a741ec572f077b116d87849fa595d90daa6537e3f9cbaf3.exe	84
PID 2160 wrote to memory of 3616	2160	919b080c6200fbf05a741ec572f077b116d87849fa595d90daa6537e3f9cbaf3.exe	84

C:\Users\Admin\AppData\Local\Temp\919b080c6200fbf05a741ec572f077b116d87849fa595d90daa6537e3f9cbaf3.exe
"C:\Users\Admin\AppData\Local\Temp\919b080c6200fbf05a741ec572f077b116d87849fa595d90daa6537e3f9cbaf3.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:5060
- C:\Users\Admin\AppData\Local\Temp\919b080c6200fbf05a741ec572f077b116d87849fa595d90daa6537e3f9cbaf3.exe
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:2160
- - C:\Windows\SysWOW64\svchost.exe
    svchost.exe
    3⤵
    PID:5088
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 5088 -s 480
      4⤵
      Program crash
      PID:3524
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 5088 -s 488
      4⤵
      Program crash
      PID:2772
- - C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
    "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe"
    3⤵
    PID:3616

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 432 -p 5088 -ip 5088
1⤵
PID:2748

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 456 -p 5088 -ip 5088
1⤵
PID:2292

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/2160-136-0x0000000010000000-0x000000001004E000-memory.dmp

Filesize
312KB

Download
memory/2160-138-0x0000000010000000-0x000000001004E000-memory.dmp

Filesize
312KB

Download
memory/2160-141-0x0000000010000000-0x000000001004E000-memory.dmp

Filesize
312KB

Download
memory/2160-140-0x0000000010000000-0x000000001004E000-memory.dmp

Filesize
312KB

Download
memory/2160-142-0x0000000000400000-0x0000000000541000-memory.dmp

Filesize
1.3MB

Download
memory/2160-145-0x0000000010000000-0x000000001004E000-memory.dmp

Filesize
312KB

Download
memory/5060-132-0x0000000000400000-0x0000000000541000-memory.dmp

Filesize
1.3MB

Download
memory/5060-139-0x0000000000400000-0x0000000000541000-memory.dmp

Filesize
1.3MB

Download
memory/5088-144-0x0000000010000000-0x000000001004E000-memory.dmp

Filesize
312KB

Download
memory/5088-146-0x0000000010000000-0x000000001004E000-memory.dmp

Filesize
312KB

Download

Analysis

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