xtremerat | 8e6af498f3dd95539b337d2b16b617de1ebb7cc22c29b94bdf196586b43ca3df

Analysis

max time kernel
95s
max time network
141s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
04-01-2025 23:39

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General

Target

JaffaCakes118_7d357e0fcff40b6017eb4830b586ea3d.exe
Size

33KB
MD5

7d357e0fcff40b6017eb4830b586ea3d
SHA1

c84b59ad697e7a186f193943b8c8f35edc6bf0e4
SHA256

8e6af498f3dd95539b337d2b16b617de1ebb7cc22c29b94bdf196586b43ca3df
SHA512

45decc2f636f565756fbb472689eff3040ffe1b0bd5b08b8a9bd3ac47890846845536290fdc8dd7e6d619889cf180054516c3787c2dadc6899fbca7a8bcac1fa
SSDEEP

768:nMuijtHf5g7/IIG3bGcYDBSvFIWuePQtv66lKtzpKs:MNW71rcYDAWeotvXlIo

Score

10^/10

xtremerat discovery persistence rat spyware upx

Malware Config

Extracted

Family

xtremerat

hayate.linkpc.net

Signatures

Detect XtremeRAT payload 3 IoCs

resource	yara_rule
behavioral2/memory/1616-1-0x0000000010000000-0x000000001004D000-memory.dmp	family_xtremerat
behavioral2/memory/4656-3-0x0000000010000000-0x000000001004D000-memory.dmp	family_xtremerat
behavioral2/memory/1616-4-0x0000000010000000-0x000000001004D000-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/4656-0-0x0000000010000000-0x000000001004D000-memory.dmp	upx
behavioral2/memory/1616-1-0x0000000010000000-0x000000001004D000-memory.dmp	upx
behavioral2/memory/4656-3-0x0000000010000000-0x000000001004D000-memory.dmp	upx
behavioral2/memory/1616-4-0x0000000010000000-0x000000001004D000-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
448	1616	WerFault.exe	82
2228	1616	WerFault.exe	82

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_7d357e0fcff40b6017eb4830b586ea3d.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 4656 wrote to memory of 1616	4656	JaffaCakes118_7d357e0fcff40b6017eb4830b586ea3d.exe	82
PID 4656 wrote to memory of 1616	4656	JaffaCakes118_7d357e0fcff40b6017eb4830b586ea3d.exe	82
PID 4656 wrote to memory of 1616	4656	JaffaCakes118_7d357e0fcff40b6017eb4830b586ea3d.exe	82
PID 4656 wrote to memory of 1616	4656	JaffaCakes118_7d357e0fcff40b6017eb4830b586ea3d.exe	82
PID 4656 wrote to memory of 2260	4656	JaffaCakes118_7d357e0fcff40b6017eb4830b586ea3d.exe	83
PID 4656 wrote to memory of 2260	4656	JaffaCakes118_7d357e0fcff40b6017eb4830b586ea3d.exe	83
PID 4656 wrote to memory of 2260	4656	JaffaCakes118_7d357e0fcff40b6017eb4830b586ea3d.exe	83

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_7d357e0fcff40b6017eb4830b586ea3d.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_7d357e0fcff40b6017eb4830b586ea3d.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4656
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - System Location Discovery: System Language Discovery
  PID:1616
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 1616 -s 476
    3⤵
    - Program crash
    PID:448
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 1616 -s 500
    3⤵
    - Program crash
    PID:2228
- C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
  "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe"
  2⤵
  PID:2260

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 1616 -ip 1616
1⤵
PID:4264

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 524 -p 1616 -ip 1616
1⤵
PID:2340

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/1616-1-0x0000000010000000-0x000000001004D000-memory.dmp

Filesize
308KB

Download
memory/1616-4-0x0000000010000000-0x000000001004D000-memory.dmp

Filesize
308KB

Download
memory/4656-0-0x0000000010000000-0x000000001004D000-memory.dmp

Filesize
308KB

Download
memory/4656-3-0x0000000010000000-0x000000001004D000-memory.dmp

Filesize
308KB

Download