xtremerat | 90aeebada5d47401cba50db00b9033b43492810da276fa1c8690c2963f7423bb

Analysis

max time kernel
148s
max time network
106s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
01-11-2024 19:00

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General

Target

8490c5867fb61c6c6e8208eb3bcf9b7a_JaffaCakes118.exe
Size

33KB
MD5

8490c5867fb61c6c6e8208eb3bcf9b7a
SHA1

2d004aa823f605d900b06ea3093d96ca073f74d7
SHA256

90aeebada5d47401cba50db00b9033b43492810da276fa1c8690c2963f7423bb
SHA512

8ed71741747b8c43a2c7461b4bf0f2acdbdf7b8352513956e8566b9b90d6c83ca26b6ae76a3741f0aaf0b3b97bb5b16693c7f18c9055e6ff4cf3de2e02d62215
SSDEEP

768:zMuijtHf5g7/IIG3bGcYDBSvFIWuePQtv66lStzS1t+zVkPWC:INW71rcYDAWeotvXlQVePW

Score

10^/10

xtremerat discovery persistence rat spyware upx

Malware Config

Extracted

Family

xtremerat

slaizer.no-ip.biz

Signatures

Detect XtremeRAT payload 3 IoCs

resource	yara_rule
behavioral2/memory/3596-1-0x0000000010000000-0x000000001004D000-memory.dmp	family_xtremerat
behavioral2/memory/1744-2-0x0000000010000000-0x000000001004D000-memory.dmp	family_xtremerat
behavioral2/memory/3596-3-0x0000000010000000-0x000000001004D000-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/1744-0-0x0000000010000000-0x000000001004D000-memory.dmp	upx
behavioral2/memory/3596-1-0x0000000010000000-0x000000001004D000-memory.dmp	upx
behavioral2/memory/1744-2-0x0000000010000000-0x000000001004D000-memory.dmp	upx
behavioral2/memory/3596-3-0x0000000010000000-0x000000001004D000-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
1856	3596	WerFault.exe	83
2676	3596	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	8490c5867fb61c6c6e8208eb3bcf9b7a_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 1744 wrote to memory of 3596	1744	8490c5867fb61c6c6e8208eb3bcf9b7a_JaffaCakes118.exe	83
PID 1744 wrote to memory of 3596	1744	8490c5867fb61c6c6e8208eb3bcf9b7a_JaffaCakes118.exe	83
PID 1744 wrote to memory of 3596	1744	8490c5867fb61c6c6e8208eb3bcf9b7a_JaffaCakes118.exe	83
PID 1744 wrote to memory of 3596	1744	8490c5867fb61c6c6e8208eb3bcf9b7a_JaffaCakes118.exe	83
PID 1744 wrote to memory of 1168	1744	8490c5867fb61c6c6e8208eb3bcf9b7a_JaffaCakes118.exe	85
PID 1744 wrote to memory of 1168	1744	8490c5867fb61c6c6e8208eb3bcf9b7a_JaffaCakes118.exe	85
PID 1744 wrote to memory of 1168	1744	8490c5867fb61c6c6e8208eb3bcf9b7a_JaffaCakes118.exe	85

C:\Users\Admin\AppData\Local\Temp\8490c5867fb61c6c6e8208eb3bcf9b7a_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\8490c5867fb61c6c6e8208eb3bcf9b7a_JaffaCakes118.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1744
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - System Location Discovery: System Language Discovery
  PID:3596
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 3596 -s 480
    3⤵
    - Program crash
    PID:1856
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 3596 -s 488
    3⤵
    - Program crash
    PID:2676
- C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
  "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe"
  2⤵
  PID:1168

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 416 -p 3596 -ip 3596
1⤵
PID:4984

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 536 -p 3596 -ip 3596
1⤵
PID:4356

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/1744-0-0x0000000010000000-0x000000001004D000-memory.dmp

Filesize
308KB

Download
memory/1744-2-0x0000000010000000-0x000000001004D000-memory.dmp

Filesize
308KB

Download
memory/3596-1-0x0000000010000000-0x000000001004D000-memory.dmp

Filesize
308KB

Download
memory/3596-3-0x0000000010000000-0x000000001004D000-memory.dmp

Filesize
308KB

Download