xtremerat | 46ff1f3bb69576e5f2d84e4345b64563ddbc69b83b636f5560c6019cb0e97586

General

Target

d78c21554d13575159554cdaac8a666c_JaffaCakes118.exe
Size

604KB
MD5

d78c21554d13575159554cdaac8a666c
SHA1

5329040e2a48ef7da2371f5200e1dd095a43078b
SHA256

46ff1f3bb69576e5f2d84e4345b64563ddbc69b83b636f5560c6019cb0e97586
SHA512

05dd7bc810580c791d98b3541ffa3189b56c47e19302da689c1fc5180aeda6c1c3b572c59118c6fb7b34f8dbbc0d9ac8a9cfb5aab919b36c79f850187b7ede17
SSDEEP

12288:s9kTo6UHsw8CcjW7oaUUMzsEXrq4lpw+BwQ5tyNf+CkJQMzEMY0paL:FT/UHswIBaUlsE+4lpw+BByNGCyQMIME

Score

10^/10

xtremerat discovery persistence rat spyware

Malware Config

Extracted

Family

xtremerat

C2

sandepad.zapto.org

Signatures

Detect XtremeRAT payload 7 IoCs

resource	yara_rule
behavioral2/memory/4352-4-0x0000000010000000-0x000000001004A000-memory.dmp	family_xtremerat
behavioral2/memory/4352-5-0x0000000010000000-0x000000001004A000-memory.dmp	family_xtremerat
behavioral2/memory/4352-6-0x0000000010000000-0x000000001004A000-memory.dmp	family_xtremerat
behavioral2/memory/4704-9-0x0000000010000000-0x000000001004A000-memory.dmp	family_xtremerat
behavioral2/memory/4352-13-0x0000000010000000-0x000000001004A000-memory.dmp	family_xtremerat
behavioral2/memory/4352-12-0x0000000010000000-0x000000001004A000-memory.dmp	family_xtremerat
behavioral2/memory/4704-14-0x0000000010000000-0x000000001004A000-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
Xtremerat family
xtremerat

Boot or Logon Autostart Execution: Active Setup 2 TTPs 2 IoCs

Adversaries may achieve persistence by adding a Registry key to the Active Setup of the local machine.

persistence

Active Setup

T1547.014

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\MACHINE\Software\WOW6432Node\Microsoft\Active Setup\Installed Components\{528Y4S85-3PXN-8H00-B776-1V6WP7JL2451}	d78c21554d13575159554cdaac8a666c_JaffaCakes118.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Active Setup\Installed Components\{528Y4S85-3PXN-8H00-B776-1V6WP7JL2451}\StubPath = "C:\\Users\\Admin\\AppData\\Roaming\\SunJava\\Isass.exe restart"	d78c21554d13575159554cdaac8a666c_JaffaCakes118.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-940901362-3608833189-1915618603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\HKCU = "%Isass%"	d78c21554d13575159554cdaac8a666c_JaffaCakes118.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 4428 set thread context of 4352	4428	d78c21554d13575159554cdaac8a666c_JaffaCakes118.exe	83

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
4996	4704	WerFault.exe	84
3408	4704	WerFault.exe	84

System Location Discovery: System Language Discovery 1 TTPs 3 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	d78c21554d13575159554cdaac8a666c_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	d78c21554d13575159554cdaac8a666c_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
4428	d78c21554d13575159554cdaac8a666c_JaffaCakes118.exe
4352	d78c21554d13575159554cdaac8a666c_JaffaCakes118.exe

Suspicious use of WriteProcessMemory 17 IoCs

description	pid	Process	procid_target
PID 4428 wrote to memory of 4352	4428	d78c21554d13575159554cdaac8a666c_JaffaCakes118.exe	83
PID 4428 wrote to memory of 4352	4428	d78c21554d13575159554cdaac8a666c_JaffaCakes118.exe	83
PID 4428 wrote to memory of 4352	4428	d78c21554d13575159554cdaac8a666c_JaffaCakes118.exe	83
PID 4428 wrote to memory of 4352	4428	d78c21554d13575159554cdaac8a666c_JaffaCakes118.exe	83
PID 4428 wrote to memory of 4352	4428	d78c21554d13575159554cdaac8a666c_JaffaCakes118.exe	83
PID 4428 wrote to memory of 4352	4428	d78c21554d13575159554cdaac8a666c_JaffaCakes118.exe	83
PID 4428 wrote to memory of 4352	4428	d78c21554d13575159554cdaac8a666c_JaffaCakes118.exe	83
PID 4428 wrote to memory of 4352	4428	d78c21554d13575159554cdaac8a666c_JaffaCakes118.exe	83
PID 4428 wrote to memory of 4352	4428	d78c21554d13575159554cdaac8a666c_JaffaCakes118.exe	83
PID 4428 wrote to memory of 4352	4428	d78c21554d13575159554cdaac8a666c_JaffaCakes118.exe	83
PID 4428 wrote to memory of 4352	4428	d78c21554d13575159554cdaac8a666c_JaffaCakes118.exe	83
PID 4428 wrote to memory of 4352	4428	d78c21554d13575159554cdaac8a666c_JaffaCakes118.exe	83
PID 4428 wrote to memory of 4352	4428	d78c21554d13575159554cdaac8a666c_JaffaCakes118.exe	83
PID 4352 wrote to memory of 4704	4352	d78c21554d13575159554cdaac8a666c_JaffaCakes118.exe	84
PID 4352 wrote to memory of 4704	4352	d78c21554d13575159554cdaac8a666c_JaffaCakes118.exe	84
PID 4352 wrote to memory of 4704	4352	d78c21554d13575159554cdaac8a666c_JaffaCakes118.exe	84
PID 4352 wrote to memory of 4704	4352	d78c21554d13575159554cdaac8a666c_JaffaCakes118.exe	84

C:\Users\Admin\AppData\Local\Temp\d78c21554d13575159554cdaac8a666c_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\d78c21554d13575159554cdaac8a666c_JaffaCakes118.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:4428
- C:\Users\Admin\AppData\Local\Temp\d78c21554d13575159554cdaac8a666c_JaffaCakes118.exe
  "C:\Users\Admin\AppData\Local\Temp\d78c21554d13575159554cdaac8a666c_JaffaCakes118.exe"
  2⤵
  - Boot or Logon Autostart Execution: Active Setup
  - Adds Run key to start application
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:4352
- - C:\Windows\SysWOW64\svchost.exe
    svchost.exe
    3⤵
    - System Location Discovery: System Language Discovery
    PID:4704
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 4704 -s 480
      4⤵
      Program crash
      PID:4996
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 4704 -s 488
      4⤵
      Program crash
      PID:3408

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 416 -p 4704 -ip 4704
1⤵
PID:64

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 484 -p 4704 -ip 4704
1⤵
PID:3788

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

2

T1547

Active Setup

1

T1547.014

Registry Run Keys / Startup Folder

1

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

2

T1547

Active Setup

1

T1547.014

Registry Run Keys / Startup Folder

1

T1547.001

Defense Evasion

Modify Registry

2

T1112

Credential Access

Discovery

System Information Discovery

1

T1082

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

memory/4352-4-0x0000000010000000-0x000000001004A000-memory.dmp

Filesize
296KB

Download
memory/4352-5-0x0000000010000000-0x000000001004A000-memory.dmp

Filesize
296KB

Download
memory/4352-6-0x0000000010000000-0x000000001004A000-memory.dmp

Filesize
296KB

Download
memory/4352-13-0x0000000010000000-0x000000001004A000-memory.dmp

Filesize
296KB

Download
memory/4352-12-0x0000000010000000-0x000000001004A000-memory.dmp

Filesize
296KB

Download
memory/4428-0-0x0000000000400000-0x0000000000974000-memory.dmp

Filesize
5.5MB

Download
memory/4428-3-0x0000000000401000-0x0000000000954000-memory.dmp

Filesize
5.3MB

Download
memory/4428-8-0x0000000000400000-0x0000000000974000-memory.dmp

Filesize
5.5MB

Download
memory/4704-9-0x0000000010000000-0x000000001004A000-memory.dmp

Filesize
296KB

Download
memory/4704-14-0x0000000010000000-0x000000001004A000-memory.dmp

Filesize
296KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads