xtremerat | ae313d0e47a0b2b9add0b80b5b81f9646deebf56e2d23688bca77895f43f3ae4

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02-01-2025 07:37

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02-01-2025 07:37

250102-jft2batmeq 10

02-01-2025 07:33

250102-jd2y5s1lb1 10

Analysis

max time kernel
100s
max time network
134s
platform
windows10-ltsc 2021_x64
resource
win10ltsc2021-20241211-en
resource tags

arch:x64arch:x86image:win10ltsc2021-20241211-enlocale:en-usos:windows10-ltsc 2021-x64system
submitted
02-01-2025 07:37

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General

Target

JaffaCakes118_638c04eae5e282c98536588853ef56bd.exe
Size

31KB
MD5

638c04eae5e282c98536588853ef56bd
SHA1

a8d028b997da033867f743733fa1a4fc9013eb84
SHA256

ae313d0e47a0b2b9add0b80b5b81f9646deebf56e2d23688bca77895f43f3ae4
SHA512

a2c587ce5a4930858213783b3fb5a1c49f269f639bb9194bcadcf6d32e49176cb8167d37e7eae4c059cf541c09b59b32e62357bd9c98bad83e4d7e11ead14409
SSDEEP

768:TSuijtHf5g7/MjN3Ha4LWqY+5cpSMuRRRzv4/+5jnGsZl:+NW70x6ALBwG/

Score

10^/10

xtremerat discovery persistence rat spyware upx

Malware Config

Signatures

Detect XtremeRAT payload 3 IoCs

resource	yara_rule
behavioral3/memory/3128-1-0x0000000010000000-0x000000001004B000-memory.dmp	family_xtremerat
behavioral3/memory/2504-3-0x0000000010000000-0x000000001004B000-memory.dmp	family_xtremerat
behavioral3/memory/3128-4-0x0000000010000000-0x000000001004B000-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
behavioral3/memory/2504-0-0x0000000010000000-0x000000001004B000-memory.dmp	upx
behavioral3/memory/3128-1-0x0000000010000000-0x000000001004B000-memory.dmp	upx
behavioral3/memory/2504-3-0x0000000010000000-0x000000001004B000-memory.dmp	upx
behavioral3/memory/3128-4-0x0000000010000000-0x000000001004B000-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
2488	3128	WerFault.exe	84
3380	3128	WerFault.exe	84

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_638c04eae5e282c98536588853ef56bd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 2504 wrote to memory of 3128	2504	JaffaCakes118_638c04eae5e282c98536588853ef56bd.exe	84
PID 2504 wrote to memory of 3128	2504	JaffaCakes118_638c04eae5e282c98536588853ef56bd.exe	84
PID 2504 wrote to memory of 3128	2504	JaffaCakes118_638c04eae5e282c98536588853ef56bd.exe	84
PID 2504 wrote to memory of 3128	2504	JaffaCakes118_638c04eae5e282c98536588853ef56bd.exe	84
PID 2504 wrote to memory of 3164	2504	JaffaCakes118_638c04eae5e282c98536588853ef56bd.exe	86
PID 2504 wrote to memory of 3164	2504	JaffaCakes118_638c04eae5e282c98536588853ef56bd.exe	86
PID 2504 wrote to memory of 3164	2504	JaffaCakes118_638c04eae5e282c98536588853ef56bd.exe	86

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_638c04eae5e282c98536588853ef56bd.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_638c04eae5e282c98536588853ef56bd.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2504
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - System Location Discovery: System Language Discovery
  PID:3128
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 3128 -s 516
    3⤵
    - Program crash
    PID:2488
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 3128 -s 536
    3⤵
    - Program crash
    PID:3380
- C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
  "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe"
  2⤵
  PID:3164

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 416 -p 3128 -ip 3128
1⤵
PID:3756

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 496 -p 3128 -ip 3128
1⤵
PID:4736

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/2504-0-0x0000000010000000-0x000000001004B000-memory.dmp

Filesize
300KB

Download
memory/2504-3-0x0000000010000000-0x000000001004B000-memory.dmp

Filesize
300KB

Download
memory/3128-1-0x0000000010000000-0x000000001004B000-memory.dmp

Filesize
300KB

Download
memory/3128-4-0x0000000010000000-0x000000001004B000-memory.dmp

Filesize
300KB

Download