xtremerat | 8ef007d13da4bae8ce2eda5a528a4a6fcf9de026c968fb99ef1d21d510413d6e

Analysis

max time kernel
70s
max time network
123s
platform
windows10-2004_x64
resource
win10v2004-20250129-en
resource tags

arch:x64arch:x86image:win10v2004-20250129-enlocale:en-usos:windows10-2004-x64system
submitted
29-01-2025 17:53

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General

Target

JaffaCakes118_59b3791c9f1d8a19aa4b7dbccdeb33de.exe
Size

33KB
MD5

59b3791c9f1d8a19aa4b7dbccdeb33de
SHA1

575651a488bcdac7e4bdf1e58c9e1d558427c269
SHA256

8ef007d13da4bae8ce2eda5a528a4a6fcf9de026c968fb99ef1d21d510413d6e
SHA512

9e9947646ab0786f59ebecf4e3809c14d0fca2d497e77c9939e2b1af8320868def69e18dc98f03166f4030e29ed38734348144cef987eaa550b7282c77c7fc73
SSDEEP

768:8MuijtHf5g7/IIG3bGcYDBSvFIWuePQtv66lFXeeyK+G:1NW71rcYDAWeotvXlF

Score

10^/10

xtremerat discovery persistence rat spyware upx

Malware Config

Extracted

Family

xtremerat

耀آtaskhost.servehttp.com

Signatures

Detect XtremeRAT payload 3 IoCs

resource	yara_rule
behavioral2/memory/2384-1-0x0000000010000000-0x000000001004D000-memory.dmp	family_xtremerat
behavioral2/memory/2200-2-0x0000000010000000-0x000000001004D000-memory.dmp	family_xtremerat
behavioral2/memory/2384-3-0x0000000010000000-0x000000001004D000-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

UPX packed file 4 IoCs

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

upx

resource	yara_rule
behavioral2/memory/2200-0-0x0000000010000000-0x000000001004D000-memory.dmp	upx
behavioral2/memory/2384-1-0x0000000010000000-0x000000001004D000-memory.dmp	upx
behavioral2/memory/2200-2-0x0000000010000000-0x000000001004D000-memory.dmp	upx
behavioral2/memory/2384-3-0x0000000010000000-0x000000001004D000-memory.dmp	upx

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
3500	2384	WerFault.exe	83
3456	2384	WerFault.exe	83

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	JaffaCakes118_59b3791c9f1d8a19aa4b7dbccdeb33de.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 2200 wrote to memory of 2384	2200	JaffaCakes118_59b3791c9f1d8a19aa4b7dbccdeb33de.exe	83
PID 2200 wrote to memory of 2384	2200	JaffaCakes118_59b3791c9f1d8a19aa4b7dbccdeb33de.exe	83
PID 2200 wrote to memory of 2384	2200	JaffaCakes118_59b3791c9f1d8a19aa4b7dbccdeb33de.exe	83
PID 2200 wrote to memory of 2384	2200	JaffaCakes118_59b3791c9f1d8a19aa4b7dbccdeb33de.exe	83
PID 2200 wrote to memory of 2348	2200	JaffaCakes118_59b3791c9f1d8a19aa4b7dbccdeb33de.exe	84
PID 2200 wrote to memory of 2348	2200	JaffaCakes118_59b3791c9f1d8a19aa4b7dbccdeb33de.exe	84
PID 2200 wrote to memory of 2348	2200	JaffaCakes118_59b3791c9f1d8a19aa4b7dbccdeb33de.exe	84

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_59b3791c9f1d8a19aa4b7dbccdeb33de.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_59b3791c9f1d8a19aa4b7dbccdeb33de.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2200
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2384
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 2384 -s 480
    3⤵
    - Program crash
    PID:3500
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 2384 -s 488
    3⤵
    - Program crash
    PID:3456
- C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
  "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe"
  2⤵
  PID:2348

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 412 -p 2384 -ip 2384
1⤵
PID:3216

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 468 -p 2384 -ip 2384
1⤵
PID:1504

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/2200-0-0x0000000010000000-0x000000001004D000-memory.dmp

Filesize
308KB

Download
memory/2200-2-0x0000000010000000-0x000000001004D000-memory.dmp

Filesize
308KB

Download
memory/2384-1-0x0000000010000000-0x000000001004D000-memory.dmp

Filesize
308KB

Download
memory/2384-3-0x0000000010000000-0x000000001004D000-memory.dmp

Filesize
308KB

Download