xtremerat | b71745bd8676d052b0d35507af40ead88f447efcae034fba84b623551c2baa3e

Analysis

max time kernel
147s
max time network
150s
platform
windows10-2004_x64
resource
win10v2004-20240508-en
resource tags

arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system
submitted
14/06/2024, 12:55

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General

Target
a9c8cae9854449ed7e490c8de523c158_JaffaCakes118.exe
Size 65KB
Sample240614-p53mmsvfmn
SHA256 b71745bd8676d052b0d35507af40ead88f447efcae034fba84b623551c2baa3e
MD5 a9c8cae9854449ed7e490c8de523c158
SHA1 55130806c705709fc71fc1f339a11f0144ee716e
SHA512 acd29374a508cc3e8f171d6db9a551cdc6dd1bbbe7c0b6e0b41726dd37bc35a075d704a212b8f21f673cc9594d49cd52cf2b39642bba0c2162fe3861c77491c1
SSDEEP 768:88m1Sq4NQErBsH1tzoisBKQI6dObAG/dq8uW29Ifnca/yyR+P2ujfGiXsbs8Hvzu:esq+QV4rObAdXWpf/y+Yaro
MD5 SHA1 SHA512 SSDEEP

Score

10^/10

xtremerat persistence rat spyware

Malware Config

Signatures

Detect XtremeRAT payload 4 IoCs

resource	yara_rule
behavioral2/memory/224-0-0x0000000010000000-0x000000001004A000-memory.dmp	family_xtremerat
behavioral2/memory/224-3-0x0000000010000000-0x000000001004A000-memory.dmp	family_xtremerat
behavioral2/memory/2916-4-0x0000000010000000-0x000000001004A000-memory.dmp	family_xtremerat
behavioral2/memory/2916-5-0x0000000010000000-0x000000001004A000-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

Modifies Installed Components in the registry 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\MACHINE\Software\WOW6432Node\Microsoft\Active Setup\Installed Components\{5460C4DF-B266-909E-CB58-E32B79832EB2}	a9c8cae9854449ed7e490c8de523c158_JaffaCakes118.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Active Setup\Installed Components\{5460C4DF-B266-909E-CB58-E32B79832EB2}\StubPath = "C:\\Windows\\InstallDir\\Server.exe restart"	a9c8cae9854449ed7e490c8de523c158_JaffaCakes118.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\HKLM = "C:\\Windows\\InstallDir\\Server.exe"	a9c8cae9854449ed7e490c8de523c158_JaffaCakes118.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-4124900551-4068476067-3491212533-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\HKCU = "C:\\Windows\\InstallDir\\Server.exe"	a9c8cae9854449ed7e490c8de523c158_JaffaCakes118.exe

Drops file in Windows directory 3 IoCs

description	ioc	Process
File opened for modification	C:\Windows\InstallDir\Server.exe	a9c8cae9854449ed7e490c8de523c158_JaffaCakes118.exe
File created	C:\Windows\InstallDir\Server.exe	a9c8cae9854449ed7e490c8de523c158_JaffaCakes118.exe
File opened for modification	C:\Windows\InstallDir\	a9c8cae9854449ed7e490c8de523c158_JaffaCakes118.exe

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
2104	224	WerFault.exe	82
4564	224	WerFault.exe	82

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
2916	a9c8cae9854449ed7e490c8de523c158_JaffaCakes118.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2916 wrote to memory of 224	2916	a9c8cae9854449ed7e490c8de523c158_JaffaCakes118.exe	82
PID 2916 wrote to memory of 224	2916	a9c8cae9854449ed7e490c8de523c158_JaffaCakes118.exe	82
PID 2916 wrote to memory of 224	2916	a9c8cae9854449ed7e490c8de523c158_JaffaCakes118.exe	82
PID 2916 wrote to memory of 224	2916	a9c8cae9854449ed7e490c8de523c158_JaffaCakes118.exe	82

C:\Users\Admin\AppData\Local\Temp\a9c8cae9854449ed7e490c8de523c158_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\a9c8cae9854449ed7e490c8de523c158_JaffaCakes118.exe"
1⤵
- Modifies Installed Components in the registry
- Adds Run key to start application
- Drops file in Windows directory
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2916
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  PID:224
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 224 -s 480
    3⤵
    - Program crash
    PID:2104
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 224 -s 488
    3⤵
    - Program crash
    PID:4564

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 448 -p 224 -ip 224
1⤵
PID:4028

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 448 -p 224 -ip 224
1⤵
PID:1044

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

memory/224-0-0x0000000010000000-0x000000001004A000-memory.dmp

Download

memory/224-3-0x0000000010000000-0x000000001004A000-memory.dmp

Download

memory/2916-4-0x0000000010000000-0x000000001004A000-memory.dmp

Download

memory/2916-5-0x0000000010000000-0x000000001004A000-memory.dmp

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads