xtremerat | 0ecabf4f33ac22f4e59c8ee525c76dece55a384c6e5652053828c93f18aef343

Analysis

max time kernel
103s
max time network
152s
platform
windows10-2004_x64
resource
win10v2004-20250314-en
resource tags

arch:x64arch:x86image:win10v2004-20250314-enlocale:en-usos:windows10-2004-x64system
submitted
21/03/2025, 21:54

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General

Target

JaffaCakes118_84e1f2a2b50b79833fd97bd2bf7dd6d4.exe
Size

33KB
MD5

84e1f2a2b50b79833fd97bd2bf7dd6d4
SHA1

df02abcbd635e105aaa4f66413b5469549dfebb9
SHA256

0ecabf4f33ac22f4e59c8ee525c76dece55a384c6e5652053828c93f18aef343
SHA512

665c5ff282c71ba70f35d8e2e6f0ee00dd3d5fbb95e50b561a84f2013a2fcb0fd1f7422a709c0e2a8946955e735a8f60cfaebd27cd92c94dbc859b581aac6b24
SSDEEP

768:OMuijtHf5g7/IIG3bGcYDBSvFIWuePQtv66lhtzKmhJV:rNW71rcYDAWeotvXlnPz

Score

10^/10

xtremerat discovery persistence rat spyware upx

Malware Config

Signatures

Detect XtremeRAT payload 3 IoCs

resource	yara_rule
behavioral2/memory/764-1-0x0000000010000000-0x000000001004D000-memory.dmp	family_xtremerat
behavioral2/memory/3420-3-0x0000000010000000-0x000000001004D000-memory.dmp	family_xtremerat
behavioral2/memory/764-4-0x0000000010000000-0x000000001004D000-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
behavioral2/memory/3420-0-0x0000000010000000-0x000000001004D000-memory.dmp	upx
behavioral2/memory/764-1-0x0000000010000000-0x000000001004D000-memory.dmp	upx
behavioral2/memory/3420-3-0x0000000010000000-0x000000001004D000-memory.dmp	upx
behavioral2/memory/764-4-0x0000000010000000-0x000000001004D000-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
5320	764	WerFault.exe	86
2756	764	WerFault.exe	86

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_84e1f2a2b50b79833fd97bd2bf7dd6d4.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 3420 wrote to memory of 764	3420	JaffaCakes118_84e1f2a2b50b79833fd97bd2bf7dd6d4.exe	86
PID 3420 wrote to memory of 764	3420	JaffaCakes118_84e1f2a2b50b79833fd97bd2bf7dd6d4.exe	86
PID 3420 wrote to memory of 764	3420	JaffaCakes118_84e1f2a2b50b79833fd97bd2bf7dd6d4.exe	86
PID 3420 wrote to memory of 764	3420	JaffaCakes118_84e1f2a2b50b79833fd97bd2bf7dd6d4.exe	86
PID 3420 wrote to memory of 6080	3420	JaffaCakes118_84e1f2a2b50b79833fd97bd2bf7dd6d4.exe	88
PID 3420 wrote to memory of 6080	3420	JaffaCakes118_84e1f2a2b50b79833fd97bd2bf7dd6d4.exe	88
PID 3420 wrote to memory of 6080	3420	JaffaCakes118_84e1f2a2b50b79833fd97bd2bf7dd6d4.exe	88

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_84e1f2a2b50b79833fd97bd2bf7dd6d4.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_84e1f2a2b50b79833fd97bd2bf7dd6d4.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3420
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - System Location Discovery: System Language Discovery
  PID:764
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 764 -s 480
    3⤵
    - Program crash
    PID:5320
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 764 -s 500
    3⤵
    - Program crash
    PID:2756
- C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
  "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe"
  2⤵
  PID:6080

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 424 -p 764 -ip 764
1⤵
PID:5104

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 528 -p 764 -ip 764
1⤵
PID:1784

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

Replay Monitor

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Downloads

memory/764-1-0x0000000010000000-0x000000001004D000-memory.dmp

Filesize
308KB

Download
memory/764-4-0x0000000010000000-0x000000001004D000-memory.dmp

Filesize
308KB

Download
memory/3420-0-0x0000000010000000-0x000000001004D000-memory.dmp

Filesize
308KB

Download
memory/3420-3-0x0000000010000000-0x000000001004D000-memory.dmp

Filesize
308KB

Download