xtremerat | e930fe9f06b1692b7486305fcc661b213cc290f6b00c681e75386293107a7feb

General

Target

a1afa361dab7f2a129e0d6a7d79d6fbd_JaffaCakes118.exe
Size

755KB
MD5

a1afa361dab7f2a129e0d6a7d79d6fbd
SHA1

967fb6c387fb8b7fb6aaca5d2bc91282f8fe11f2
SHA256

e930fe9f06b1692b7486305fcc661b213cc290f6b00c681e75386293107a7feb
SHA512

c0b06b5735294c00c9950be1406f5b6cd845a569af0f5d8c3b2c0d63ba122135d715dd2a5eb7f48f25a3925808af61b11fa23a80c07d1cbf355100d2764dad80
SSDEEP

12288:+Ma65M1l92EiqfUC/wnTI7NPMKkp3JBRvqwTlXndGvnOx7mx4UJvSxjtVAkK/omp:+JZZsC/vxMKkp3JBRvqwTlXndGnDExV+

Score

10^/10

xtremerat discovery persistence rat spyware

Malware Config

Extracted

Family

xtremerat

C2

silent-hilll.no-ip.biz

Signatures

Detect XtremeRAT payload 10 IoCs

resource	yara_rule
behavioral2/memory/4072-0-0x0000000010000000-0x000000001004A000-memory.dmp	family_xtremerat
behavioral2/memory/4072-7-0x0000000010000000-0x000000001004A000-memory.dmp	family_xtremerat
behavioral2/memory/4072-6-0x0000000010000000-0x000000001004A000-memory.dmp	family_xtremerat
behavioral2/memory/4072-5-0x0000000010000000-0x000000001004A000-memory.dmp	family_xtremerat
behavioral2/memory/4072-3-0x0000000010000000-0x000000001004A000-memory.dmp	family_xtremerat
behavioral2/memory/4072-9-0x0000000010000000-0x000000001004A000-memory.dmp	family_xtremerat
behavioral2/memory/4072-1-0x0000000010000000-0x000000001004A000-memory.dmp	family_xtremerat
behavioral2/memory/5096-10-0x0000000010000000-0x000000001004A000-memory.dmp	family_xtremerat
behavioral2/memory/4072-13-0x0000000010000000-0x000000001004A000-memory.dmp	family_xtremerat
behavioral2/memory/5096-14-0x0000000010000000-0x000000001004A000-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\{A4YA4O85-G366-U810-3V7N-1238CMDAFDF4}	cmd.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Active Setup\Installed Components\{A4YA4O85-G366-U810-3V7N-1238CMDAFDF4}\StubPath = "C:\\Windows\\system32\\InstallDir\\xp.exe restart"	cmd.exe

Adds Run key to start application 2 TTPs 3 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-3756129449-3121373848-4276368241-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\win32 = "C:\\Windows\\system32\\InstallDir\\xp.exe"	cmd.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\HKLM = "C:\\Windows\\system32\\InstallDir\\xp.exe"	cmd.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3756129449-3121373848-4276368241-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\HKCU = "C:\\Windows\\system32\\InstallDir\\xp.exe"	cmd.exe

Drops file in System32 directory 3 IoCs

description	ioc	Process
File opened for modification	C:\Windows\SysWOW64\InstallDir\	cmd.exe
File opened for modification	C:\Windows\SysWOW64\InstallDir\xp.exe	cmd.exe
File created	C:\Windows\SysWOW64\InstallDir\xp.exe	cmd.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 4388 set thread context of 4072	4388	a1afa361dab7f2a129e0d6a7d79d6fbd_JaffaCakes118.exe	82

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
716	5096	WerFault.exe	83
3648	5096	WerFault.exe	83

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	a1afa361dab7f2a129e0d6a7d79d6fbd_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
4072	cmd.exe

Suspicious use of WriteProcessMemory 17 IoCs

description	pid	Process	procid_target
PID 4388 wrote to memory of 4072	4388	a1afa361dab7f2a129e0d6a7d79d6fbd_JaffaCakes118.exe	82
PID 4388 wrote to memory of 4072	4388	a1afa361dab7f2a129e0d6a7d79d6fbd_JaffaCakes118.exe	82
PID 4388 wrote to memory of 4072	4388	a1afa361dab7f2a129e0d6a7d79d6fbd_JaffaCakes118.exe	82
PID 4388 wrote to memory of 4072	4388	a1afa361dab7f2a129e0d6a7d79d6fbd_JaffaCakes118.exe	82
PID 4388 wrote to memory of 4072	4388	a1afa361dab7f2a129e0d6a7d79d6fbd_JaffaCakes118.exe	82
PID 4388 wrote to memory of 4072	4388	a1afa361dab7f2a129e0d6a7d79d6fbd_JaffaCakes118.exe	82
PID 4388 wrote to memory of 4072	4388	a1afa361dab7f2a129e0d6a7d79d6fbd_JaffaCakes118.exe	82
PID 4388 wrote to memory of 4072	4388	a1afa361dab7f2a129e0d6a7d79d6fbd_JaffaCakes118.exe	82
PID 4388 wrote to memory of 4072	4388	a1afa361dab7f2a129e0d6a7d79d6fbd_JaffaCakes118.exe	82
PID 4388 wrote to memory of 4072	4388	a1afa361dab7f2a129e0d6a7d79d6fbd_JaffaCakes118.exe	82
PID 4388 wrote to memory of 4072	4388	a1afa361dab7f2a129e0d6a7d79d6fbd_JaffaCakes118.exe	82
PID 4388 wrote to memory of 4072	4388	a1afa361dab7f2a129e0d6a7d79d6fbd_JaffaCakes118.exe	82
PID 4388 wrote to memory of 4072	4388	a1afa361dab7f2a129e0d6a7d79d6fbd_JaffaCakes118.exe	82
PID 4072 wrote to memory of 5096	4072	cmd.exe	83
PID 4072 wrote to memory of 5096	4072	cmd.exe	83
PID 4072 wrote to memory of 5096	4072	cmd.exe	83
PID 4072 wrote to memory of 5096	4072	cmd.exe	83

C:\Users\Admin\AppData\Local\Temp\a1afa361dab7f2a129e0d6a7d79d6fbd_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\a1afa361dab7f2a129e0d6a7d79d6fbd_JaffaCakes118.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4388
- \??\c:\windows\SysWOW64\cmd.exe
  c:\windows\system32\cmd.exe
  2⤵
  - Boot or Logon Autostart Execution: Active Setup
  - Adds Run key to start application
  - Drops file in System32 directory
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:4072
- - \??\c:\windows\SysWOW64\svchost.exe
    svchost.exe
    3⤵
    - System Location Discovery: System Language Discovery
    PID:5096
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 5096 -s 484
      4⤵
      Program crash
      PID:716
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 5096 -s 492
      4⤵
      Program crash
      PID:3648

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 452 -p 5096 -ip 5096
1⤵
PID:4528

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 516 -p 5096 -ip 5096
1⤵
PID:4220

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/4072-0-0x0000000010000000-0x000000001004A000-memory.dmp

Filesize
296KB

Download
memory/4072-7-0x0000000010000000-0x000000001004A000-memory.dmp

Filesize
296KB

Download
memory/4072-6-0x0000000010000000-0x000000001004A000-memory.dmp

Filesize
296KB

Download
memory/4072-5-0x0000000010000000-0x000000001004A000-memory.dmp

Filesize
296KB

Download
memory/4072-3-0x0000000010000000-0x000000001004A000-memory.dmp

Filesize
296KB

Download
memory/4072-9-0x0000000010000000-0x000000001004A000-memory.dmp

Filesize
296KB

Download
memory/4072-1-0x0000000010000000-0x000000001004A000-memory.dmp

Filesize
296KB

Download
memory/4072-13-0x0000000010000000-0x000000001004A000-memory.dmp

Filesize
296KB

Download
memory/5096-10-0x0000000010000000-0x000000001004A000-memory.dmp

Filesize
296KB

Download
memory/5096-14-0x0000000010000000-0x000000001004A000-memory.dmp

Filesize
296KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads