xtremerat | d369022b5849f8f785ada5468a198643f39aa29f8007037d0aef37df92f9c3f0

General

Target

b9940e38ac42648f958a2f8b8cdd2935.exe
Size

284KB
MD5

b9940e38ac42648f958a2f8b8cdd2935
SHA1

3bcffc2b201b8da00a5c3e848582ebd2f2bfb130
SHA256

d369022b5849f8f785ada5468a198643f39aa29f8007037d0aef37df92f9c3f0
SHA512

57c072f71a08c9bbfb455e19eb23fc08a4b6094eb6b25ca271fb6b4b062464b702088d207c8b24f75245947a921b3d08f719b5376dfa690b38aeeec68d57387a
SSDEEP

6144:snpAOgw8HYWO9UGBvVoYGrLHXiugVn+ut9o3aQ1dUDR7Y+Xt5u:snpH4HYWO9Dm9g+W9VQdC7YX

Score

10^/10

xtremerat persistence rat spyware

Malware Config

Extracted

Family

xtremerat

C2

far3on.zapto.org

Signatures

Detect XtremeRAT payload 7 IoCs

resource	yara_rule
behavioral2/memory/2816-14-0x0000000010000000-0x000000001004A000-memory.dmp	family_xtremerat
behavioral2/memory/2816-15-0x0000000010000000-0x000000001004A000-memory.dmp	family_xtremerat
behavioral2/memory/2816-17-0x0000000010000000-0x000000001004A000-memory.dmp	family_xtremerat
behavioral2/memory/2816-19-0x0000000010000000-0x000000001004A000-memory.dmp	family_xtremerat
behavioral2/memory/3588-21-0x0000000010000000-0x000000001004A000-memory.dmp	family_xtremerat
behavioral2/memory/2816-22-0x0000000010000000-0x000000001004A000-memory.dmp	family_xtremerat
behavioral2/memory/3588-23-0x0000000010000000-0x000000001004A000-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

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 4892 set thread context of 2816	4892	b9940e38ac42648f958a2f8b8cdd2935.exe	85

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
3012	3588	WerFault.exe	86
2636	3588	WerFault.exe	86

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
4892	b9940e38ac42648f958a2f8b8cdd2935.exe

Suspicious use of WriteProcessMemory 20 IoCs

description	pid	Process	procid_target
PID 4892 wrote to memory of 2816	4892	b9940e38ac42648f958a2f8b8cdd2935.exe	85
PID 4892 wrote to memory of 2816	4892	b9940e38ac42648f958a2f8b8cdd2935.exe	85
PID 4892 wrote to memory of 2816	4892	b9940e38ac42648f958a2f8b8cdd2935.exe	85
PID 4892 wrote to memory of 2816	4892	b9940e38ac42648f958a2f8b8cdd2935.exe	85
PID 4892 wrote to memory of 2816	4892	b9940e38ac42648f958a2f8b8cdd2935.exe	85
PID 4892 wrote to memory of 2816	4892	b9940e38ac42648f958a2f8b8cdd2935.exe	85
PID 4892 wrote to memory of 2816	4892	b9940e38ac42648f958a2f8b8cdd2935.exe	85
PID 4892 wrote to memory of 2816	4892	b9940e38ac42648f958a2f8b8cdd2935.exe	85
PID 4892 wrote to memory of 2816	4892	b9940e38ac42648f958a2f8b8cdd2935.exe	85
PID 4892 wrote to memory of 2816	4892	b9940e38ac42648f958a2f8b8cdd2935.exe	85
PID 4892 wrote to memory of 2816	4892	b9940e38ac42648f958a2f8b8cdd2935.exe	85
PID 4892 wrote to memory of 2816	4892	b9940e38ac42648f958a2f8b8cdd2935.exe	85
PID 4892 wrote to memory of 2816	4892	b9940e38ac42648f958a2f8b8cdd2935.exe	85
PID 2816 wrote to memory of 3588	2816	b9940e38ac42648f958a2f8b8cdd2935.exe	86
PID 2816 wrote to memory of 3588	2816	b9940e38ac42648f958a2f8b8cdd2935.exe	86
PID 2816 wrote to memory of 3588	2816	b9940e38ac42648f958a2f8b8cdd2935.exe	86
PID 2816 wrote to memory of 3588	2816	b9940e38ac42648f958a2f8b8cdd2935.exe	86
PID 2816 wrote to memory of 4880	2816	b9940e38ac42648f958a2f8b8cdd2935.exe	87
PID 2816 wrote to memory of 4880	2816	b9940e38ac42648f958a2f8b8cdd2935.exe	87
PID 2816 wrote to memory of 4880	2816	b9940e38ac42648f958a2f8b8cdd2935.exe	87

C:\Users\Admin\AppData\Local\Temp\b9940e38ac42648f958a2f8b8cdd2935.exe
"C:\Users\Admin\AppData\Local\Temp\b9940e38ac42648f958a2f8b8cdd2935.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:4892
- C:\Users\Admin\AppData\Local\Temp\b9940e38ac42648f958a2f8b8cdd2935.exe
  "C:\Users\Admin\AppData\Local\Temp\b9940e38ac42648f958a2f8b8cdd2935.exe"
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:2816
- - C:\Windows\SysWOW64\svchost.exe
    svchost.exe
    3⤵
    PID:3588
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 3588 -s 480
      4⤵
      Program crash
      PID:3012
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 3588 -s 488
      4⤵
      Program crash
      PID:2636
- - C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
    "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe"
    3⤵
    PID:4880

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 3588 -ip 3588
1⤵
PID:1884

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 516 -p 3588 -ip 3588
1⤵
PID:1276

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

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/2816-14-0x0000000010000000-0x000000001004A000-memory.dmp

Filesize
296KB

Download
memory/2816-22-0x0000000010000000-0x000000001004A000-memory.dmp

Filesize
296KB

Download
memory/2816-19-0x0000000010000000-0x000000001004A000-memory.dmp

Filesize
296KB

Download
memory/2816-17-0x0000000010000000-0x000000001004A000-memory.dmp

Filesize
296KB

Download
memory/2816-15-0x0000000010000000-0x000000001004A000-memory.dmp

Filesize
296KB

Download
memory/3588-23-0x0000000010000000-0x000000001004A000-memory.dmp

Filesize
296KB

Download
memory/3588-21-0x0000000010000000-0x000000001004A000-memory.dmp

Filesize
296KB

Download
memory/4892-10-0x0000000000400000-0x0000000000479000-memory.dmp

Filesize
484KB

Download
memory/4892-6-0x0000000077C72000-0x0000000077C73000-memory.dmp

Filesize
4KB

Download
memory/4892-11-0x0000000000B40000-0x0000000000B43000-memory.dmp

Filesize
12KB

Download
memory/4892-0-0x0000000000A30000-0x0000000000A31000-memory.dmp

Filesize
4KB

Download
memory/4892-8-0x0000000075D90000-0x0000000075E80000-memory.dmp

Filesize
960KB

Download
memory/4892-7-0x0000000002540000-0x0000000002550000-memory.dmp

Filesize
64KB

Download
memory/4892-3-0x0000000000400000-0x0000000000479000-memory.dmp

Filesize
484KB

Download
memory/4892-9-0x0000000000B50000-0x0000000000B60000-memory.dmp

Filesize
64KB

Download
memory/4892-16-0x0000000000400000-0x0000000000479000-memory.dmp

Filesize
484KB

Download
memory/4892-18-0x0000000000A50000-0x0000000000A8D000-memory.dmp

Filesize
244KB

Download
memory/4892-5-0x0000000000B50000-0x0000000000B60000-memory.dmp

Filesize
64KB

Download
memory/4892-20-0x0000000075D90000-0x0000000075E80000-memory.dmp

Filesize
960KB

Download
memory/4892-4-0x0000000000AE0000-0x0000000000AF0000-memory.dmp

Filesize
64KB

Download
memory/4892-2-0x0000000000400000-0x0000000000479000-memory.dmp

Filesize
484KB

Download
memory/4892-1-0x0000000000A50000-0x0000000000A8D000-memory.dmp

Filesize
244KB

Download

Analysis

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