xtremerat | 94ae3a9b5dfc1a49c30e06768638edfb05592111304b15c55197c7ff476dbea5

Analysis

max time kernel
146s
max time network
151s
platform
windows10-2004_x64
resource
win10v2004-20240226-en
resource tags

arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
submitted
18/03/2024, 03:19

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General

Target
d2721a0465ec2d335b35fdb27f25204a.exe
Size 292KB
Sample240318-dvktasfc33
SHA256 94ae3a9b5dfc1a49c30e06768638edfb05592111304b15c55197c7ff476dbea5
MD5 d2721a0465ec2d335b35fdb27f25204a
SHA1 d132636c9615b212711886090bc4ac699c46bf77
SHA512 4a7da0456379ba11f6e37904a65af95b2a376cfacb53c2ec1850cdffa4956402543c85b21714c13fe160c593716ea668747e6bf074c9ddcff03a3262643400a3
SSDEEP 6144:bBLgtNiEdq9W/JMlYBb2OOPmDcj2tL3KCoaJmZBEFa:KzuYJMO41uZL3KC9MZ
MD5 SHA1 SHA512 SSDEEP

Score

10^/10

xtremerat persistence rat spyware upx

Malware Config

Signatures

Detect XtremeRAT payload 3 IoCs

resource	yara_rule
behavioral2/memory/4924-1-0x0000000010000000-0x000000001008F000-memory.dmp	family_xtremerat
behavioral2/memory/4536-4-0x0000000010000000-0x000000001008F000-memory.dmp	family_xtremerat
behavioral2/memory/4924-5-0x0000000010000000-0x000000001008F000-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 4 IoCs

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

upx

resource	yara_rule
behavioral2/memory/4536-0-0x0000000010000000-0x000000001008F000-memory.dmp	upx
behavioral2/memory/4924-1-0x0000000010000000-0x000000001008F000-memory.dmp	upx
behavioral2/memory/4536-4-0x0000000010000000-0x000000001008F000-memory.dmp	upx
behavioral2/memory/4924-5-0x0000000010000000-0x000000001008F000-memory.dmp	upx

Drops file in Windows directory 2 IoCs

description	ioc	Process
File created	C:\Windows\457007.jpg	d2721a0465ec2d335b35fdb27f25204a.exe
File created	C:\Windows\457007.jpg.exe	d2721a0465ec2d335b35fdb27f25204a.exe

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
3068	4924	WerFault.exe	87
4312	4924	WerFault.exe	87

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 4536 wrote to memory of 4924	4536	d2721a0465ec2d335b35fdb27f25204a.exe	87
PID 4536 wrote to memory of 4924	4536	d2721a0465ec2d335b35fdb27f25204a.exe	87
PID 4536 wrote to memory of 4924	4536	d2721a0465ec2d335b35fdb27f25204a.exe	87
PID 4536 wrote to memory of 4924	4536	d2721a0465ec2d335b35fdb27f25204a.exe	87
PID 4536 wrote to memory of 904	4536	d2721a0465ec2d335b35fdb27f25204a.exe	88
PID 4536 wrote to memory of 904	4536	d2721a0465ec2d335b35fdb27f25204a.exe	88
PID 4536 wrote to memory of 904	4536	d2721a0465ec2d335b35fdb27f25204a.exe	88

C:\Users\Admin\AppData\Local\Temp\d2721a0465ec2d335b35fdb27f25204a.exe
"C:\Users\Admin\AppData\Local\Temp\d2721a0465ec2d335b35fdb27f25204a.exe"
1⤵
- Drops file in Windows directory
- Suspicious use of WriteProcessMemory
PID:4536
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  PID:4924
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 4924 -s 476
    3⤵
    - Program crash
    PID:3068
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 4924 -s 504
    3⤵
    - Program crash
    PID:4312
- C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
  "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe"
  2⤵
  PID:904

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 436 -p 4924 -ip 4924
1⤵
PID:804

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 536 -p 4924 -ip 4924
1⤵
PID:1680

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/4536-0-0x0000000010000000-0x000000001008F000-memory.dmp

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memory/4536-4-0x0000000010000000-0x000000001008F000-memory.dmp

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memory/4924-1-0x0000000010000000-0x000000001008F000-memory.dmp

Download

memory/4924-5-0x0000000010000000-0x000000001008F000-memory.dmp

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Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads