xtremerat | 1a0cf107cfc08966f78a4704cccb304f60e97096f18391c24460b19f533804d0

Analysis

max time kernel
104s
max time network
137s
platform
windows10-2004_x64
resource
win10v2004-20250314-en
resource tags

arch:x64arch:x86image:win10v2004-20250314-enlocale:en-usos:windows10-2004-x64system
submitted
08/04/2025, 21:27

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General

Target

JaffaCakes118_a1aacaadd709e5e317e5fbf2985216a7.exe
Size

33KB
MD5

a1aacaadd709e5e317e5fbf2985216a7
SHA1

6f4fc8445a5b693874d54a92f7517d43ca209a32
SHA256

1a0cf107cfc08966f78a4704cccb304f60e97096f18391c24460b19f533804d0
SHA512

2105caa13b03ca39a884e733780a71e8ce2bec50ba8b0cde1effcc3cbcc36eb120ca651f2a61e87b2c263459629d2a6b56843f1be2661a384220df4d43b92d33
SSDEEP

768:DMuijtHf5g7/IIG3bGcYDBSvFIWuePQtv66lVZ+57vL7Wi:YNW71rcYDAWeotvXlVZ+57z7W

Score

10^/10

xtremerat discovery persistence rat spyware upx

Malware Config

Extracted

Family

xtremerat

komberss.no-ip.biz

Signatures

Detect XtremeRAT payload 3 IoCs

resource	yara_rule
behavioral1/memory/4420-1-0x0000000010000000-0x000000001004D000-memory.dmp	family_xtremerat
behavioral1/memory/4256-3-0x0000000010000000-0x000000001004D000-memory.dmp	family_xtremerat
behavioral1/memory/4420-4-0x0000000010000000-0x000000001004D000-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/4256-0-0x0000000010000000-0x000000001004D000-memory.dmp	upx
behavioral1/memory/4420-1-0x0000000010000000-0x000000001004D000-memory.dmp	upx
behavioral1/memory/4256-3-0x0000000010000000-0x000000001004D000-memory.dmp	upx
behavioral1/memory/4420-4-0x0000000010000000-0x000000001004D000-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
4124	4420	WerFault.exe	87
1388	4420	WerFault.exe	87

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_a1aacaadd709e5e317e5fbf2985216a7.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 4256 wrote to memory of 4420	4256	JaffaCakes118_a1aacaadd709e5e317e5fbf2985216a7.exe	87
PID 4256 wrote to memory of 4420	4256	JaffaCakes118_a1aacaadd709e5e317e5fbf2985216a7.exe	87
PID 4256 wrote to memory of 4420	4256	JaffaCakes118_a1aacaadd709e5e317e5fbf2985216a7.exe	87
PID 4256 wrote to memory of 4420	4256	JaffaCakes118_a1aacaadd709e5e317e5fbf2985216a7.exe	87
PID 4256 wrote to memory of 2840	4256	JaffaCakes118_a1aacaadd709e5e317e5fbf2985216a7.exe	89
PID 4256 wrote to memory of 2840	4256	JaffaCakes118_a1aacaadd709e5e317e5fbf2985216a7.exe	89
PID 4256 wrote to memory of 2840	4256	JaffaCakes118_a1aacaadd709e5e317e5fbf2985216a7.exe	89

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_a1aacaadd709e5e317e5fbf2985216a7.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_a1aacaadd709e5e317e5fbf2985216a7.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4256
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - System Location Discovery: System Language Discovery
  PID:4420
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 4420 -s 480
    3⤵
    - Program crash
    PID:4124
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 4420 -s 488
    3⤵
    - Program crash
    PID:1388
- C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
  "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe"
  2⤵
  PID:2840

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 4420 -ip 4420
1⤵
PID:2172

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 512 -p 4420 -ip 4420
1⤵
PID:3448

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/4256-0-0x0000000010000000-0x000000001004D000-memory.dmp

Filesize
308KB

Download
memory/4256-3-0x0000000010000000-0x000000001004D000-memory.dmp

Filesize
308KB

Download
memory/4420-1-0x0000000010000000-0x000000001004D000-memory.dmp

Filesize
308KB

Download
memory/4420-4-0x0000000010000000-0x000000001004D000-memory.dmp

Filesize
308KB

Download