xtremerat | 426a6541af612796bb2b4d4a5f6f4aed4648cc1efe419bf0861672c170e3d581

General

Target

fb74403d4776e8cb1bfa21dbd6fd98dc_JaffaCakes118.exe
Size

224KB
MD5

fb74403d4776e8cb1bfa21dbd6fd98dc
SHA1

6bad2e8d247dfc844c61c9b40b097e8e8a04a9d8
SHA256

426a6541af612796bb2b4d4a5f6f4aed4648cc1efe419bf0861672c170e3d581
SHA512

9c677bac6165f9e69e5bdcd0d54dbe00e3cc2399ebe295c42559072558591d92d03cb249d9bf5b3af2d6fda6009096d62af1de9c9e1750b2c4587cd90ebf9395
SSDEEP

3072:EoO97BH+vJfCOOYjaFi/WimUrPdy4z0gJPKVDfzxH2LFZRL:ErleFCuaFGYDbp8vL

Score

10^/10

xtremerat discovery persistence rat spyware

Malware Config

Extracted

Family

xtremerat

C2

rappelz2.zapto.org

getdesktoppreviewinfo|224rappelz2.zapto.org

Signatures

Detect XtremeRAT payload 8 IoCs

resource	yara_rule
behavioral2/memory/1852-3-0x0000000010000000-0x000000001004A000-memory.dmp	family_xtremerat
behavioral2/memory/1852-4-0x0000000010000000-0x000000001004A000-memory.dmp	family_xtremerat
behavioral2/memory/1852-5-0x0000000010000000-0x000000001004A000-memory.dmp	family_xtremerat
behavioral2/memory/1852-6-0x0000000010000000-0x000000001004A000-memory.dmp	family_xtremerat
behavioral2/memory/4872-8-0x0000000010000000-0x000000001004A000-memory.dmp	family_xtremerat
behavioral2/memory/1852-9-0x0000000010000000-0x000000001004A000-memory.dmp	family_xtremerat
behavioral2/memory/4872-12-0x0000000010000000-0x000000001004A000-memory.dmp	family_xtremerat
behavioral2/memory/4872-13-0x0000000010000000-0x000000001004A000-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\{K62QS765-LH6R-SK3R-RQXD-C3KWWCF21A04}	notepad.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Active Setup\Installed Components\{K62QS765-LH6R-SK3R-RQXD-C3KWWCF21A04}\StubPath = "C:\\Windows\\system32\\PIF\\Help.exe restart"	notepad.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\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\XQGM = "C:\\Windows\\system32\\PIF\\Help.exe"	notepad.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1045960512-3948844814-3059691613-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\825Q = "C:\\Windows\\system32\\PIF\\Help.exe"	notepad.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1045960512-3948844814-3059691613-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\11F1M62N = "6KKB"	notepad.exe

Drops file in System32 directory 3 IoCs

description	ioc	Process
File opened for modification	C:\Windows\SysWOW64\PIF\Help.exe	notepad.exe
File created	C:\Windows\SysWOW64\PIF\Help.exe	notepad.exe
File opened for modification	C:\Windows\SysWOW64\PIF\	notepad.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 3336 set thread context of 1852	3336	fb74403d4776e8cb1bfa21dbd6fd98dc_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
4836	4872	WerFault.exe	84
1356	4872	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	fb74403d4776e8cb1bfa21dbd6fd98dc_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	fb74403d4776e8cb1bfa21dbd6fd98dc_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	notepad.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
3336	fb74403d4776e8cb1bfa21dbd6fd98dc_JaffaCakes118.exe
4872	notepad.exe

Suspicious use of WriteProcessMemory 17 IoCs

description	pid	Process	procid_target
PID 3336 wrote to memory of 1852	3336	fb74403d4776e8cb1bfa21dbd6fd98dc_JaffaCakes118.exe	83
PID 3336 wrote to memory of 1852	3336	fb74403d4776e8cb1bfa21dbd6fd98dc_JaffaCakes118.exe	83
PID 3336 wrote to memory of 1852	3336	fb74403d4776e8cb1bfa21dbd6fd98dc_JaffaCakes118.exe	83
PID 3336 wrote to memory of 1852	3336	fb74403d4776e8cb1bfa21dbd6fd98dc_JaffaCakes118.exe	83
PID 3336 wrote to memory of 1852	3336	fb74403d4776e8cb1bfa21dbd6fd98dc_JaffaCakes118.exe	83
PID 3336 wrote to memory of 1852	3336	fb74403d4776e8cb1bfa21dbd6fd98dc_JaffaCakes118.exe	83
PID 3336 wrote to memory of 1852	3336	fb74403d4776e8cb1bfa21dbd6fd98dc_JaffaCakes118.exe	83
PID 3336 wrote to memory of 1852	3336	fb74403d4776e8cb1bfa21dbd6fd98dc_JaffaCakes118.exe	83
PID 3336 wrote to memory of 1852	3336	fb74403d4776e8cb1bfa21dbd6fd98dc_JaffaCakes118.exe	83
PID 3336 wrote to memory of 1852	3336	fb74403d4776e8cb1bfa21dbd6fd98dc_JaffaCakes118.exe	83
PID 3336 wrote to memory of 1852	3336	fb74403d4776e8cb1bfa21dbd6fd98dc_JaffaCakes118.exe	83
PID 3336 wrote to memory of 1852	3336	fb74403d4776e8cb1bfa21dbd6fd98dc_JaffaCakes118.exe	83
PID 3336 wrote to memory of 1852	3336	fb74403d4776e8cb1bfa21dbd6fd98dc_JaffaCakes118.exe	83
PID 1852 wrote to memory of 4872	1852	fb74403d4776e8cb1bfa21dbd6fd98dc_JaffaCakes118.exe	84
PID 1852 wrote to memory of 4872	1852	fb74403d4776e8cb1bfa21dbd6fd98dc_JaffaCakes118.exe	84
PID 1852 wrote to memory of 4872	1852	fb74403d4776e8cb1bfa21dbd6fd98dc_JaffaCakes118.exe	84
PID 1852 wrote to memory of 4872	1852	fb74403d4776e8cb1bfa21dbd6fd98dc_JaffaCakes118.exe	84

C:\Users\Admin\AppData\Local\Temp\fb74403d4776e8cb1bfa21dbd6fd98dc_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\fb74403d4776e8cb1bfa21dbd6fd98dc_JaffaCakes118.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:3336
- C:\Users\Admin\AppData\Local\Temp\fb74403d4776e8cb1bfa21dbd6fd98dc_JaffaCakes118.exe
  C:\Users\Admin\AppData\Local\Temp\fb74403d4776e8cb1bfa21dbd6fd98dc_JaffaCakes118.exe
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:1852
- - C:\Windows\SysWOW64\notepad.exe
    notepad.exe
    3⤵
    - 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
    PID:4872
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 4872 -s 976
      4⤵
      Program crash
      PID:4836
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 4872 -s 984
      4⤵
      Program crash
      PID:1356

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 432 -p 4872 -ip 4872
1⤵
PID:4628

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 424 -p 4872 -ip 4872
1⤵
PID:3656

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/1852-3-0x0000000010000000-0x000000001004A000-memory.dmp

Filesize
296KB

Download
memory/1852-4-0x0000000010000000-0x000000001004A000-memory.dmp

Filesize
296KB

Download
memory/1852-5-0x0000000010000000-0x000000001004A000-memory.dmp

Filesize
296KB

Download
memory/1852-6-0x0000000010000000-0x000000001004A000-memory.dmp

Filesize
296KB

Download
memory/1852-9-0x0000000010000000-0x000000001004A000-memory.dmp

Filesize
296KB

Download
memory/3336-0-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/3336-7-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/4872-8-0x0000000010000000-0x000000001004A000-memory.dmp

Filesize
296KB

Download
memory/4872-12-0x0000000010000000-0x000000001004A000-memory.dmp

Filesize
296KB

Download
memory/4872-13-0x0000000010000000-0x000000001004A000-memory.dmp

Filesize
296KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads