xtremerat | 88f774028bb7e12f314ecdc31f5efa2b3d2d45296286b7ce977f838b16ca7b4f

Analysis

max time kernel
103s
max time network
140s
platform
windows10-2004_x64
resource
win10v2004-20250314-en
resource tags

arch:x64arch:x86image:win10v2004-20250314-enlocale:en-usos:windows10-2004-x64system
submitted
12/04/2025, 05:19

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General

Target

JaffaCakes118_b13a84ba68d05e3a1dbfcba64f6da6db.exe
Size

33KB
MD5

b13a84ba68d05e3a1dbfcba64f6da6db
SHA1

146ee7e604957b4532c8d9472b2b86c35c82198a
SHA256

88f774028bb7e12f314ecdc31f5efa2b3d2d45296286b7ce977f838b16ca7b4f
SHA512

aeaec3f65919e86f1c75a51a8192f241f3cabc351f8b3d890fc24255d12a2b56b11242eee119b1caf0adddc4834da3404ac46c2902c538dec345962eac3ac6e1
SSDEEP

768:hMuijtHf5g7/IIG3bGcYDBSvFIWuePQtv66lmtz7aQsF2X:KNW71rcYDAWeotvXlMiu

Score

10^/10

xtremerat discovery persistence rat spyware upx

Malware Config

Extracted

Family

xtremerat

daimoom3.zapto.org

Signatures

Detect XtremeRAT payload 3 IoCs

resource	yara_rule
behavioral1/memory/3076-1-0x0000000010000000-0x000000001004D000-memory.dmp	family_xtremerat
behavioral1/memory/4036-3-0x0000000010000000-0x000000001004D000-memory.dmp	family_xtremerat
behavioral1/memory/3076-4-0x0000000010000000-0x000000001004D000-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
behavioral1/memory/4036-0-0x0000000010000000-0x000000001004D000-memory.dmp	upx
behavioral1/memory/3076-1-0x0000000010000000-0x000000001004D000-memory.dmp	upx
behavioral1/memory/4036-3-0x0000000010000000-0x000000001004D000-memory.dmp	upx
behavioral1/memory/3076-4-0x0000000010000000-0x000000001004D000-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
4912	3076	WerFault.exe	85
4028	3076	WerFault.exe	85

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_b13a84ba68d05e3a1dbfcba64f6da6db.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 4036 wrote to memory of 3076	4036	JaffaCakes118_b13a84ba68d05e3a1dbfcba64f6da6db.exe	85
PID 4036 wrote to memory of 3076	4036	JaffaCakes118_b13a84ba68d05e3a1dbfcba64f6da6db.exe	85
PID 4036 wrote to memory of 3076	4036	JaffaCakes118_b13a84ba68d05e3a1dbfcba64f6da6db.exe	85
PID 4036 wrote to memory of 3076	4036	JaffaCakes118_b13a84ba68d05e3a1dbfcba64f6da6db.exe	85
PID 4036 wrote to memory of 2884	4036	JaffaCakes118_b13a84ba68d05e3a1dbfcba64f6da6db.exe	88
PID 4036 wrote to memory of 2884	4036	JaffaCakes118_b13a84ba68d05e3a1dbfcba64f6da6db.exe	88
PID 4036 wrote to memory of 2884	4036	JaffaCakes118_b13a84ba68d05e3a1dbfcba64f6da6db.exe	88

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_b13a84ba68d05e3a1dbfcba64f6da6db.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_b13a84ba68d05e3a1dbfcba64f6da6db.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4036
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - System Location Discovery: System Language Discovery
  PID:3076
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 3076 -s 480
    3⤵
    - Program crash
    PID:4912
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 3076 -s 488
    3⤵
    - Program crash
    PID:4028
- C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
  "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe"
  2⤵
  PID:2884

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 3076 -ip 3076
1⤵
PID:1960

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 532 -p 3076 -ip 3076
1⤵
PID:6076

Network

MITRE ATT&CK Enterprise v16

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/3076-1-0x0000000010000000-0x000000001004D000-memory.dmp

Filesize
308KB

Download
memory/3076-4-0x0000000010000000-0x000000001004D000-memory.dmp

Filesize
308KB

Download
memory/4036-0-0x0000000010000000-0x000000001004D000-memory.dmp

Filesize
308KB

Download
memory/4036-3-0x0000000010000000-0x000000001004D000-memory.dmp

Filesize
308KB

Download