Malware Analysis Report

2025-01-03 03:02

Sample ID 241127-nhyjqs1pds
Target a79c261f6fae161ede7489db34ca3813_JaffaCakes118
SHA256 5895164454aba620b70384013953a9e1e8e0b90166bd5fb849275e42071f0025
Tags
darkvnc discovery rat
score
10/10

Table of Contents

Analysis Overview

MITRE ATT&CK

Enterprise Matrix V15

Analysis: static1

Detonation Overview

Signatures

Analysis: behavioral1

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis: behavioral2

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis Overview

score
10/10

SHA256

5895164454aba620b70384013953a9e1e8e0b90166bd5fb849275e42071f0025

Threat Level: Known bad

The file a79c261f6fae161ede7489db34ca3813_JaffaCakes118 was found to be: Known bad.

Malicious Activity Summary

darkvnc discovery rat

Darkvnc family

DarkVNC

DarkVNC payload

Suspicious use of SetThreadContext

Program crash

Unsigned PE

System Location Discovery: System Language Discovery

Suspicious use of WriteProcessMemory

Suspicious behavior: MapViewOfSection

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-11-27 11:24

Signatures

Unsigned PE

Description Indicator Process Target
N/A N/A N/A N/A

Analysis: behavioral1

Detonation Overview

Submitted

2024-11-27 11:24

Reported

2024-11-27 11:27

Platform

win7-20241010-en

Max time kernel

145s

Max time network

150s

Command Line

"C:\Users\Admin\AppData\Local\Temp\a79c261f6fae161ede7489db34ca3813_JaffaCakes118.exe"

Signatures

DarkVNC

rat darkvnc

Darkvnc family

darkvnc

DarkVNC payload

rat
Description Indicator Process Target
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Suspicious use of SetThreadContext

Description Indicator Process Target
PID 2052 set thread context of 2040 N/A C:\Users\Admin\AppData\Local\Temp\a79c261f6fae161ede7489db34ca3813_JaffaCakes118.exe C:\Windows\system32\WerFault.exe

System Location Discovery: System Language Discovery

discovery
Description Indicator Process Target
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Users\Admin\AppData\Local\Temp\a79c261f6fae161ede7489db34ca3813_JaffaCakes118.exe N/A

Suspicious behavior: MapViewOfSection

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\a79c261f6fae161ede7489db34ca3813_JaffaCakes118.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\a79c261f6fae161ede7489db34ca3813_JaffaCakes118.exe

"C:\Users\Admin\AppData\Local\Temp\a79c261f6fae161ede7489db34ca3813_JaffaCakes118.exe"

C:\Windows\system32\WerFault.exe

C:\Windows\system32\WerFault.exe

Network

Country Destination Domain Proto
US 23.83.133.126:80 tcp
US 23.83.133.126:80 tcp
US 23.83.133.126:80 tcp
US 23.83.133.126:80 tcp
US 23.83.133.126:80 tcp
US 23.83.133.126:80 tcp
US 23.83.133.126:80 tcp
US 23.83.133.126:80 tcp
US 23.83.133.126:80 tcp
US 23.83.133.126:80 tcp

Files

memory/2052-1-0x0000000000AA0000-0x0000000000BA0000-memory.dmp

memory/2052-2-0x0000000000220000-0x00000000002A8000-memory.dmp

memory/2052-4-0x0000000000400000-0x000000000048A000-memory.dmp

memory/2040-5-0x000007FFFFFD9000-0x000007FFFFFDA000-memory.dmp

memory/2040-7-0x0000000001B50000-0x0000000001C1A000-memory.dmp

memory/2040-12-0x0000000001B50000-0x0000000001C1A000-memory.dmp

memory/2040-6-0x0000000000290000-0x0000000000291000-memory.dmp

memory/2040-11-0x0000000001B50000-0x0000000001C1A000-memory.dmp

memory/2040-13-0x0000000001B50000-0x0000000001C1A000-memory.dmp

memory/2040-14-0x0000000001B50000-0x0000000001C1A000-memory.dmp

memory/2040-15-0x0000000001B50000-0x0000000001C1A000-memory.dmp

memory/2052-18-0x0000000000400000-0x000000000048A000-memory.dmp

memory/2052-17-0x0000000000220000-0x00000000002A8000-memory.dmp

memory/2052-16-0x0000000000400000-0x0000000000937000-memory.dmp

memory/2040-19-0x0000000001B50000-0x0000000001C1A000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-11-27 11:24

Reported

2024-11-27 11:27

Platform

win10v2004-20241007-en

Max time kernel

94s

Max time network

135s

Command Line

"C:\Users\Admin\AppData\Local\Temp\a79c261f6fae161ede7489db34ca3813_JaffaCakes118.exe"

Signatures

DarkVNC

rat darkvnc

Darkvnc family

darkvnc

DarkVNC payload

rat
Description Indicator Process Target
N/A N/A N/A N/A
N/A N/A N/A N/A
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System Location Discovery: System Language Discovery

discovery
Description Indicator Process Target
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Users\Admin\AppData\Local\Temp\a79c261f6fae161ede7489db34ca3813_JaffaCakes118.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\a79c261f6fae161ede7489db34ca3813_JaffaCakes118.exe

"C:\Users\Admin\AppData\Local\Temp\a79c261f6fae161ede7489db34ca3813_JaffaCakes118.exe"

C:\Windows\system32\WerFault.exe

C:\Windows\system32\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 460 -p 2852 -ip 2852

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 2852 -s 560

Network

Country Destination Domain Proto
US 8.8.8.8:53 8.8.8.8.in-addr.arpa udp
US 8.8.8.8:53 209.205.72.20.in-addr.arpa udp
US 8.8.8.8:53 172.210.232.199.in-addr.arpa udp
US 8.8.8.8:53 134.32.126.40.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 28.118.140.52.in-addr.arpa udp
US 8.8.8.8:53 56.163.245.4.in-addr.arpa udp
US 8.8.8.8:53 171.39.242.20.in-addr.arpa udp
US 8.8.8.8:53 172.214.232.199.in-addr.arpa udp
US 8.8.8.8:53 13.227.111.52.in-addr.arpa udp

Files

memory/2852-1-0x0000000000970000-0x0000000000A70000-memory.dmp

memory/2852-2-0x0000000000BD0000-0x0000000000C58000-memory.dmp

memory/2852-4-0x0000000000400000-0x000000000048A000-memory.dmp

memory/2852-6-0x0000000000BD0000-0x0000000000C58000-memory.dmp

memory/2852-7-0x0000000000400000-0x000000000048A000-memory.dmp

memory/2852-5-0x0000000000400000-0x0000000000937000-memory.dmp