xtremerat | 3316c81227c6bbdf7ddee9530ba4c5d8163ba2bc1eb2634aab4f8c74e2742b6d

Analysis

max time kernel
105s
max time network
171s
platform
windows10-2004_x64
resource
win10v2004-20220812-en
resource tags

arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
submitted
02/10/2022, 14:55

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General

Target

3316c81227c6bbdf7ddee9530ba4c5d8163ba2bc1eb2634aab4f8c74e2742b6d.exe
Size

45KB
MD5

7cb035620cef09757d349991ff8bc750
SHA1

47b0d0f3016f6fde2f8582307afe9ef6f28c6952
SHA256

3316c81227c6bbdf7ddee9530ba4c5d8163ba2bc1eb2634aab4f8c74e2742b6d
SHA512

796ddb5dcec249e490256aa172f1e47b4003f3b9296a8e2a92f3edb8817e21478f2f593da6d12a48bee68ea65c8ed7fa016c4cf5a5e12010e5b051fdf4ba0675
SSDEEP

768:9Br+tjFY90VY6W1jwmDzKgEFQXCklTAnH8hwfOgw0clzova:jyRh01jxPEFQXCkeH84bIova

Score

10^/10

xtremerat persistence rat spyware

Malware Config

Signatures

Detect XtremeRAT payload 3 IoCs

resource	yara_rule
behavioral2/memory/4456-132-0x0000000000000000-mapping.dmp	family_xtremerat
behavioral2/memory/4456-133-0x0000000000C80000-0x0000000000C93000-memory.dmp	family_xtremerat
behavioral2/memory/4456-134-0x0000000000C80000-0x0000000000C93000-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

Modifies Installed Components in the registry 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\MACHINE\Software\WOW6432Node\Microsoft\Active Setup\Installed Components\{5460C4DF-B266-909E-CB58-E32B79832EB2}	3316c81227c6bbdf7ddee9530ba4c5d8163ba2bc1eb2634aab4f8c74e2742b6d.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Active Setup\Installed Components\{5460C4DF-B266-909E-CB58-E32B79832EB2}\StubPath = "C:\\Windows\\system32\\wbem\\xml.exe restart"	3316c81227c6bbdf7ddee9530ba4c5d8163ba2bc1eb2634aab4f8c74e2742b6d.exe

Drops file in System32 directory 3 IoCs

description	ioc	Process
File opened for modification	C:\Windows\SysWOW64\wbem\xml.exe	3316c81227c6bbdf7ddee9530ba4c5d8163ba2bc1eb2634aab4f8c74e2742b6d.exe
File created	C:\Windows\SysWOW64\wbem\xml.exe	3316c81227c6bbdf7ddee9530ba4c5d8163ba2bc1eb2634aab4f8c74e2742b6d.exe
File opened for modification	C:\Windows\SysWOW64\wbem\	3316c81227c6bbdf7ddee9530ba4c5d8163ba2bc1eb2634aab4f8c74e2742b6d.exe

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
1920	4456	WerFault.exe	80
3516	4456	WerFault.exe	80

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 3388 wrote to memory of 4456	3388	3316c81227c6bbdf7ddee9530ba4c5d8163ba2bc1eb2634aab4f8c74e2742b6d.exe	80
PID 3388 wrote to memory of 4456	3388	3316c81227c6bbdf7ddee9530ba4c5d8163ba2bc1eb2634aab4f8c74e2742b6d.exe	80
PID 3388 wrote to memory of 4456	3388	3316c81227c6bbdf7ddee9530ba4c5d8163ba2bc1eb2634aab4f8c74e2742b6d.exe	80
PID 3388 wrote to memory of 4456	3388	3316c81227c6bbdf7ddee9530ba4c5d8163ba2bc1eb2634aab4f8c74e2742b6d.exe	80

C:\Users\Admin\AppData\Local\Temp\3316c81227c6bbdf7ddee9530ba4c5d8163ba2bc1eb2634aab4f8c74e2742b6d.exe
"C:\Users\Admin\AppData\Local\Temp\3316c81227c6bbdf7ddee9530ba4c5d8163ba2bc1eb2634aab4f8c74e2742b6d.exe"
1⤵
- Modifies Installed Components in the registry
- Drops file in System32 directory
- Suspicious use of WriteProcessMemory
PID:3388
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  PID:4456
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 4456 -s 456
    3⤵
    - Program crash
    PID:1920
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 4456 -s 464
    3⤵
    - Program crash
    PID:3516

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 432 -p 4456 -ip 4456
1⤵
PID:1536

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 536 -p 4456 -ip 4456
1⤵
PID:1916

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

T1060

Privilege Escalation

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

memory/4456-133-0x0000000000C80000-0x0000000000C93000-memory.dmp

Filesize
76KB

Download
memory/4456-134-0x0000000000C80000-0x0000000000C93000-memory.dmp

Filesize
76KB

Download