xtremerat | ac1a0185e728b9fdffe817496d9dfd33612f454e4a9af8a97cc458f445cb3133

General

Target

629ddaa1af4860f643b018a84d154e6e_JaffaCakes118.exe
Size

91KB
MD5

629ddaa1af4860f643b018a84d154e6e
SHA1

12f2d0b47d55f9e3b4ce214fdad8d971976ec098
SHA256

ac1a0185e728b9fdffe817496d9dfd33612f454e4a9af8a97cc458f445cb3133
SHA512

cb627f7785b4209bd4c8c91bbfdcaac6b88ea6c69697d88e91242685d7702e63421f6f83555ceea52a604c4e28296fd8b1f01ef633ea6ede5a9697c737fdf41f
SSDEEP

1536:dsq+QV4rObAdXWpf/y+7ozNwihURDoq4OZZZLlCIibyoM:E44rj/WodeRD68wbyo

Score

10^/10

xtremerat discovery persistence rat spyware

Malware Config

Extracted

Family

xtremerat

C2

cnw55.xxxy.info

Signatures

Detect XtremeRAT payload 7 IoCs

resource	yara_rule
behavioral2/memory/4420-0-0x0000000010000000-0x0000000010050000-memory.dmp	family_xtremerat
behavioral2/memory/3548-1-0x0000000010000000-0x0000000010050000-memory.dmp	family_xtremerat
behavioral2/memory/2852-2-0x0000000010000000-0x0000000010050000-memory.dmp	family_xtremerat
behavioral2/memory/3548-6-0x0000000010000000-0x0000000010050000-memory.dmp	family_xtremerat
behavioral2/memory/3548-5-0x0000000010000000-0x0000000010050000-memory.dmp	family_xtremerat
behavioral2/memory/4420-8-0x0000000010000000-0x0000000010050000-memory.dmp	family_xtremerat
behavioral2/memory/3548-9-0x0000000010000000-0x0000000010050000-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

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
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Active Setup\Installed Components\{Q1M5G32G-4R1Y-8FUT-740L-3344EHYLDQI3}\StubPath = "C:\\Windows\\system32\\InstallDir\\services.exe restart"	svchost.exe
Key created	\REGISTRY\MACHINE\Software\WOW6432Node\Microsoft\Active Setup\Installed Components\{Q1M5G32G-4R1Y-8FUT-740L-3344EHYLDQI3}	svchost.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\svchost = "C:\\Windows\\system32\\InstallDir\\services.exe"	svchost.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-493223053-2004649691-1575712786-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\svchost = "C:\\Windows\\system32\\InstallDir\\services.exe"	svchost.exe

Drops file in System32 directory 3 IoCs

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

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

Program crash 4 IoCs

pid	pid_target	Process	procid_target
544	4420	WerFault.exe	84
3628	3548	WerFault.exe	85
3568	4420	WerFault.exe	84
1892	3548	WerFault.exe	85

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	629ddaa1af4860f643b018a84d154e6e_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
3548	svchost.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 2852 wrote to memory of 4420	2852	629ddaa1af4860f643b018a84d154e6e_JaffaCakes118.exe	84
PID 2852 wrote to memory of 4420	2852	629ddaa1af4860f643b018a84d154e6e_JaffaCakes118.exe	84
PID 2852 wrote to memory of 4420	2852	629ddaa1af4860f643b018a84d154e6e_JaffaCakes118.exe	84
PID 2852 wrote to memory of 4420	2852	629ddaa1af4860f643b018a84d154e6e_JaffaCakes118.exe	84
PID 2852 wrote to memory of 3548	2852	629ddaa1af4860f643b018a84d154e6e_JaffaCakes118.exe	85
PID 2852 wrote to memory of 3548	2852	629ddaa1af4860f643b018a84d154e6e_JaffaCakes118.exe	85
PID 2852 wrote to memory of 3548	2852	629ddaa1af4860f643b018a84d154e6e_JaffaCakes118.exe	85
PID 2852 wrote to memory of 3548	2852	629ddaa1af4860f643b018a84d154e6e_JaffaCakes118.exe	85

C:\Users\Admin\AppData\Local\Temp\629ddaa1af4860f643b018a84d154e6e_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\629ddaa1af4860f643b018a84d154e6e_JaffaCakes118.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2852
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - System Location Discovery: System Language Discovery
  PID:4420
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 4420 -s 480
    3⤵
    - Program crash
    PID:544
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 4420 -s 500
    3⤵
    - Program crash
    PID:3568
- C:\Windows\SysWOW64\svchost.exe
  svchost.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
  PID:3548
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 3548 -s 980
    3⤵
    - Program crash
    PID:3628
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 3548 -s 988
    3⤵
    - Program crash
    PID:1892

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 432 -p 4420 -ip 4420
1⤵
PID:1712

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 512 -p 3548 -ip 3548
1⤵
PID:3396

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 536 -p 4420 -ip 4420
1⤵
PID:3188

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 420 -p 3548 -ip 3548
1⤵
PID:4516

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/2852-2-0x0000000010000000-0x0000000010050000-memory.dmp

Filesize
320KB

Download
memory/3548-1-0x0000000010000000-0x0000000010050000-memory.dmp

Filesize
320KB

Download
memory/3548-6-0x0000000010000000-0x0000000010050000-memory.dmp

Filesize
320KB

Download
memory/3548-5-0x0000000010000000-0x0000000010050000-memory.dmp

Filesize
320KB

Download
memory/3548-9-0x0000000010000000-0x0000000010050000-memory.dmp

Filesize
320KB

Download
memory/4420-0-0x0000000010000000-0x0000000010050000-memory.dmp

Filesize
320KB

Download
memory/4420-8-0x0000000010000000-0x0000000010050000-memory.dmp

Filesize
320KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads