xtremerat | 34b0f074f70e41af0425e26966d878160fa3ba977da3b6d7e3318e1c2325d971

Analysis

max time kernel
149s
max time network
152s
platform
windows10-2004_x64
resource
win10v2004-20240226-en
resource tags

arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
submitted
07/03/2024, 12:14

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General

Target
b8b52854d16bf362b2fb2bd76d503c30.exe
Size 386KB
Sample240307-pef1ysag68
SHA256 34b0f074f70e41af0425e26966d878160fa3ba977da3b6d7e3318e1c2325d971
MD5 b8b52854d16bf362b2fb2bd76d503c30
SHA1 bb6fed878257ae3c8845057aa59aba0096c6bf71
SHA512 5cb891ba4e160cd428690f84f051d6fccf315940ded03971f7c413b4fdd7db2d1b3b5a90d1e1dd8ac178efc3b4c302a297f40a8f6c731d7d94f5441d920f9a14
SSDEEP 6144:4KdW9aUfQeJQU9khgp9aUfQeJQU9khgCHf:49XfQeSUMgp9XfQeSUMgSf
MD5 SHA1 SHA512 SSDEEP

Score

10^/10

xtremerat persistence rat spyware

Malware Config

Extracted

Family

xtremerat

jericho23.sytes.net

Signatures

Detect XtremeRAT payload 3 IoCs

resource	yara_rule
behavioral2/memory/4496-0-0x0000000010000000-0x000000001009A000-memory.dmp	family_xtremerat
behavioral2/memory/3460-1-0x0000000010000000-0x000000001009A000-memory.dmp	family_xtremerat
behavioral2/memory/4496-2-0x0000000010000000-0x000000001009A000-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
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
5076	4496	WerFault.exe	89
4292	4496	WerFault.exe	89

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 3460 wrote to memory of 4496	3460	b8b52854d16bf362b2fb2bd76d503c30.exe	89
PID 3460 wrote to memory of 4496	3460	b8b52854d16bf362b2fb2bd76d503c30.exe	89
PID 3460 wrote to memory of 4496	3460	b8b52854d16bf362b2fb2bd76d503c30.exe	89
PID 3460 wrote to memory of 4496	3460	b8b52854d16bf362b2fb2bd76d503c30.exe	89
PID 3460 wrote to memory of 2400	3460	b8b52854d16bf362b2fb2bd76d503c30.exe	90
PID 3460 wrote to memory of 2400	3460	b8b52854d16bf362b2fb2bd76d503c30.exe	90
PID 3460 wrote to memory of 2400	3460	b8b52854d16bf362b2fb2bd76d503c30.exe	90

C:\Users\Admin\AppData\Local\Temp\b8b52854d16bf362b2fb2bd76d503c30.exe
"C:\Users\Admin\AppData\Local\Temp\b8b52854d16bf362b2fb2bd76d503c30.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:3460
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  PID:4496
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 4496 -s 480
    3⤵
    - Program crash
    PID:5076
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 4496 -s 504
    3⤵
    - Program crash
    PID:4292
- C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
  "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe"
  2⤵
  PID:2400

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 428 -p 4496 -ip 4496
1⤵
PID:736

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 512 -p 4496 -ip 4496
1⤵
PID:4528

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

memory/3460-1-0x0000000010000000-0x000000001009A000-memory.dmp

Download

memory/4496-0-0x0000000010000000-0x000000001009A000-memory.dmp

Download

memory/4496-2-0x0000000010000000-0x000000001009A000-memory.dmp

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads