xtremerat | cd58bb7983fa8ae067b4ef1707f8fbbe1172a390641de3817de71421563cbe61

Analysis

max time kernel
93s
max time network
98s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
29-11-2024 15:25

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General

Target

cd58bb7983fa8ae067b4ef1707f8fbbe1172a390641de3817de71421563cbe61N.exe
Size

79KB
MD5

9b1c6545f194eca59176e4422c552b60
SHA1

934b4f8810aeeedc90bfaaa85971e7352497015c
SHA256

cd58bb7983fa8ae067b4ef1707f8fbbe1172a390641de3817de71421563cbe61
SHA512

d861d4ddf58f6bb9fec1d6bc4c292c90dd6648294effaac8477073b420faef0c9dba722b162babdd6ea5eca4b3954faa899e8d60a2d7d31082b6e22746f3a03f
SSDEEP

1536:7oheWGJmqdfxUtLQrciTxoPvcm/tgDi7sw9ZW:7oh8mqdaerh1oPvn1cShW

Score

10^/10

xtremerat discovery persistence rat spyware

Malware Config

Extracted

Family

xtremerat

khdt1.zapto.org

Signatures

Detect XtremeRAT payload 4 IoCs

resource	yara_rule
behavioral2/memory/404-0-0x0000000010001000-0x000000001000E000-memory.dmp	family_xtremerat
behavioral2/memory/3964-1-0x0000000010000000-0x000000001004A000-memory.dmp	family_xtremerat
behavioral2/memory/3964-2-0x0000000010000000-0x000000001004A000-memory.dmp	family_xtremerat
behavioral2/memory/404-3-0x0000000010000000-0x0000000010054000-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
Xtremerat family
xtremerat
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

Program crash 4 IoCs

pid	pid_target	Process	procid_target
3504	3964	WerFault.exe	82
2428	404	WerFault.exe	81
2228	3964	WerFault.exe	82
2892	404	WerFault.exe	81

System Location Discovery: System Language Discovery 1 TTPs 2 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cd58bb7983fa8ae067b4ef1707f8fbbe1172a390641de3817de71421563cbe61N.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 404 wrote to memory of 3964	404	cd58bb7983fa8ae067b4ef1707f8fbbe1172a390641de3817de71421563cbe61N.exe	82
PID 404 wrote to memory of 3964	404	cd58bb7983fa8ae067b4ef1707f8fbbe1172a390641de3817de71421563cbe61N.exe	82
PID 404 wrote to memory of 3964	404	cd58bb7983fa8ae067b4ef1707f8fbbe1172a390641de3817de71421563cbe61N.exe	82
PID 404 wrote to memory of 3964	404	cd58bb7983fa8ae067b4ef1707f8fbbe1172a390641de3817de71421563cbe61N.exe	82
PID 404 wrote to memory of 2440	404	cd58bb7983fa8ae067b4ef1707f8fbbe1172a390641de3817de71421563cbe61N.exe	83
PID 404 wrote to memory of 2440	404	cd58bb7983fa8ae067b4ef1707f8fbbe1172a390641de3817de71421563cbe61N.exe	83
PID 404 wrote to memory of 2440	404	cd58bb7983fa8ae067b4ef1707f8fbbe1172a390641de3817de71421563cbe61N.exe	83

C:\Users\Admin\AppData\Local\Temp\cd58bb7983fa8ae067b4ef1707f8fbbe1172a390641de3817de71421563cbe61N.exe
"C:\Users\Admin\AppData\Local\Temp\cd58bb7983fa8ae067b4ef1707f8fbbe1172a390641de3817de71421563cbe61N.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:404
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - System Location Discovery: System Language Discovery
  PID:3964
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 3964 -s 480
    3⤵
    - Program crash
    PID:3504
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 3964 -s 488
    3⤵
    - Program crash
    PID:2228
- C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
  "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe"
  2⤵
  PID:2440
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 404 -s 744
  2⤵
  - Program crash
  PID:2428
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 404 -s 764
  2⤵
  - Program crash
  PID:2892

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 3964 -ip 3964
1⤵
PID:2848

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 424 -p 404 -ip 404
1⤵
PID:3612

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 552 -p 3964 -ip 3964
1⤵
PID:1924

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 508 -p 404 -ip 404
1⤵
PID:4796

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

memory/404-0-0x0000000010001000-0x000000001000E000-memory.dmp

Filesize
52KB

Download
memory/404-3-0x0000000010000000-0x0000000010054000-memory.dmp

Filesize
336KB

Download
memory/3964-1-0x0000000010000000-0x000000001004A000-memory.dmp

Filesize
296KB

Download
memory/3964-2-0x0000000010000000-0x000000001004A000-memory.dmp

Filesize
296KB

Download