xtremerat | 9ac8eaa674df9f82d76337ff7f0a9e521ae9997a4dcdbb4e6a1f9c48161293e4

Analysis

max time kernel
94s
max time network
159s
platform
windows10-2004_x64
resource
win10v2004-20220812-en
resource tags

arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
submitted
30/11/2022, 23:29

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General

Target

9ac8eaa674df9f82d76337ff7f0a9e521ae9997a4dcdbb4e6a1f9c48161293e4.exe
Size

26KB
MD5

0b7573bffd737e0d4283592bef711a02
SHA1

44894be06b401bd708205dc20f68e26d91879e79
SHA256

9ac8eaa674df9f82d76337ff7f0a9e521ae9997a4dcdbb4e6a1f9c48161293e4
SHA512

2486796d18a014759f52115a1a960d9685085103e1a890d0dd855d557b03a91f350fbc517e71720184997564af4b9f982e78cdd8e3bb9f1547fa5d6f4fb7c395
SSDEEP

768:Myxsv4Mb+dRdSxEHj1WDFK/UlBfCcWQnt:MZvEEEHZklBfCcWk

Score

10^/10

xtremerat persistence rat spyware upx

Malware Config

Signatures

Detect XtremeRAT payload 3 IoCs

resource	yara_rule
behavioral2/memory/5044-133-0x0000000000000000-mapping.dmp	family_xtremerat
behavioral2/memory/2776-134-0x0000000010000000-0x0000000010048000-memory.dmp	family_xtremerat
behavioral2/memory/5044-135-0x0000000010000000-0x0000000010048000-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 3 IoCs

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

upx

resource	yara_rule
behavioral2/memory/2776-132-0x0000000010000000-0x0000000010048000-memory.dmp	upx
behavioral2/memory/2776-134-0x0000000010000000-0x0000000010048000-memory.dmp	upx
behavioral2/memory/5044-135-0x0000000010000000-0x0000000010048000-memory.dmp	upx

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
4592	5044	WerFault.exe	78
3644	5044	WerFault.exe	78

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 2776 wrote to memory of 5044	2776	9ac8eaa674df9f82d76337ff7f0a9e521ae9997a4dcdbb4e6a1f9c48161293e4.exe	78
PID 2776 wrote to memory of 5044	2776	9ac8eaa674df9f82d76337ff7f0a9e521ae9997a4dcdbb4e6a1f9c48161293e4.exe	78
PID 2776 wrote to memory of 5044	2776	9ac8eaa674df9f82d76337ff7f0a9e521ae9997a4dcdbb4e6a1f9c48161293e4.exe	78
PID 2776 wrote to memory of 5044	2776	9ac8eaa674df9f82d76337ff7f0a9e521ae9997a4dcdbb4e6a1f9c48161293e4.exe	78
PID 2776 wrote to memory of 4956	2776	9ac8eaa674df9f82d76337ff7f0a9e521ae9997a4dcdbb4e6a1f9c48161293e4.exe	79
PID 2776 wrote to memory of 4956	2776	9ac8eaa674df9f82d76337ff7f0a9e521ae9997a4dcdbb4e6a1f9c48161293e4.exe	79
PID 2776 wrote to memory of 4956	2776	9ac8eaa674df9f82d76337ff7f0a9e521ae9997a4dcdbb4e6a1f9c48161293e4.exe	79

C:\Users\Admin\AppData\Local\Temp\9ac8eaa674df9f82d76337ff7f0a9e521ae9997a4dcdbb4e6a1f9c48161293e4.exe
"C:\Users\Admin\AppData\Local\Temp\9ac8eaa674df9f82d76337ff7f0a9e521ae9997a4dcdbb4e6a1f9c48161293e4.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:2776
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  PID:5044
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 5044 -s 480
    3⤵
    - Program crash
    PID:4592
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 5044 -s 488
    3⤵
    - Program crash
    PID:3644
- C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
  "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe"
  2⤵
  PID:4956

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 424 -p 5044 -ip 5044
1⤵
PID:4924

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 524 -p 5044 -ip 5044
1⤵
PID:1016

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/2776-132-0x0000000010000000-0x0000000010048000-memory.dmp

Filesize
288KB

Download
memory/2776-134-0x0000000010000000-0x0000000010048000-memory.dmp

Filesize
288KB

Download
memory/5044-135-0x0000000010000000-0x0000000010048000-memory.dmp

Filesize
288KB

Download