Malware Analysis Report

2024-11-16 13:14

Sample ID 240625-zvkdesshjb
Target 0f83fe4211a3c4fbe59818fa9c8a3508_JaffaCakes118
SHA256 c823551b597cfac3ebdbe69c196555335b32d42cf3838907eff8f565eac60741
Tags
sality backdoor evasion persistence privilege_escalation trojan upx
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

c823551b597cfac3ebdbe69c196555335b32d42cf3838907eff8f565eac60741

Threat Level: Known bad

The file 0f83fe4211a3c4fbe59818fa9c8a3508_JaffaCakes118 was found to be: Known bad.

Malicious Activity Summary

sality backdoor evasion persistence privilege_escalation trojan upx

UAC bypass

Sality

Windows security bypass

Disables RegEdit via registry modification

Disables Task Manager via registry modification

Modifies Windows Firewall

UPX packed file

Windows security modification

Checks whether UAC is enabled

Drops file in Windows directory

Event Triggered Execution: Netsh Helper DLL

Unsigned PE

Program crash

System policy modification

Suspicious use of WriteProcessMemory

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-06-25 21:02

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-06-25 21:02

Reported

2024-06-25 21:04

Platform

win7-20240508-en

Max time kernel

119s

Max time network

120s

Command Line

"C:\Users\Admin\AppData\Local\Temp\0f83fe4211a3c4fbe59818fa9c8a3508_JaffaCakes118.exe"

Signatures

Processes

C:\Users\Admin\AppData\Local\Temp\0f83fe4211a3c4fbe59818fa9c8a3508_JaffaCakes118.exe

"C:\Users\Admin\AppData\Local\Temp\0f83fe4211a3c4fbe59818fa9c8a3508_JaffaCakes118.exe"

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 1728 -s 64

Network

N/A

Files

memory/1728-0-0x0000000030000000-0x0000000030028000-memory.dmp

memory/1728-1-0x0000000030000000-0x0000000030028000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-06-25 21:02

Reported

2024-06-25 21:04

Platform

win10v2004-20240508-en

Max time kernel

125s

Max time network

127s

Command Line

"C:\Users\Admin\AppData\Local\Temp\0f83fe4211a3c4fbe59818fa9c8a3508_JaffaCakes118.exe"

Signatures

Sality

backdoor sality

UAC bypass

evasion trojan
Description Indicator Process Target
Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0" C:\Users\Admin\AppData\Local\Temp\0f83fe4211a3c4fbe59818fa9c8a3508_JaffaCakes118.exe N/A

Windows security bypass

evasion trojan
Description Indicator Process Target
Set value (int) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\AntiVirusDisableNotify = "1" C:\Users\Admin\AppData\Local\Temp\0f83fe4211a3c4fbe59818fa9c8a3508_JaffaCakes118.exe N/A
Set value (int) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\FirewallDisableNotify = "1" C:\Users\Admin\AppData\Local\Temp\0f83fe4211a3c4fbe59818fa9c8a3508_JaffaCakes118.exe N/A
Set value (int) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\FirewallOverride = "1" C:\Users\Admin\AppData\Local\Temp\0f83fe4211a3c4fbe59818fa9c8a3508_JaffaCakes118.exe N/A
Set value (int) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\UpdatesDisableNotify = "1" C:\Users\Admin\AppData\Local\Temp\0f83fe4211a3c4fbe59818fa9c8a3508_JaffaCakes118.exe N/A
Set value (int) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\UacDisableNotify = "1" C:\Users\Admin\AppData\Local\Temp\0f83fe4211a3c4fbe59818fa9c8a3508_JaffaCakes118.exe N/A
Set value (int) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\AntiVirusOverride = "1" C:\Users\Admin\AppData\Local\Temp\0f83fe4211a3c4fbe59818fa9c8a3508_JaffaCakes118.exe N/A

Disables RegEdit via registry modification

evasion
Description Indicator Process Target
Set value (int) \REGISTRY\USER\S-1-5-21-1181767204-2009306918-3718769404-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\system\DisableRegistryTools = "1" C:\Users\Admin\AppData\Local\Temp\0f83fe4211a3c4fbe59818fa9c8a3508_JaffaCakes118.exe N/A

Disables Task Manager via registry modification

evasion

Modifies Windows Firewall

evasion
Description Indicator Process Target
N/A N/A C:\Windows\SysWOW64\netsh.exe N/A

UPX packed file

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

Windows security modification

evasion trojan
Description Indicator Process Target
Set value (int) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\AntiVirusOverride = "1" C:\Users\Admin\AppData\Local\Temp\0f83fe4211a3c4fbe59818fa9c8a3508_JaffaCakes118.exe N/A
Set value (int) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\AntiVirusDisableNotify = "1" C:\Users\Admin\AppData\Local\Temp\0f83fe4211a3c4fbe59818fa9c8a3508_JaffaCakes118.exe N/A
Set value (int) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\FirewallDisableNotify = "1" C:\Users\Admin\AppData\Local\Temp\0f83fe4211a3c4fbe59818fa9c8a3508_JaffaCakes118.exe N/A
Set value (int) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\FirewallOverride = "1" C:\Users\Admin\AppData\Local\Temp\0f83fe4211a3c4fbe59818fa9c8a3508_JaffaCakes118.exe N/A
Set value (int) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\UpdatesDisableNotify = "1" C:\Users\Admin\AppData\Local\Temp\0f83fe4211a3c4fbe59818fa9c8a3508_JaffaCakes118.exe N/A
Set value (int) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\UacDisableNotify = "1" C:\Users\Admin\AppData\Local\Temp\0f83fe4211a3c4fbe59818fa9c8a3508_JaffaCakes118.exe N/A
Key created \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\Svc C:\Users\Admin\AppData\Local\Temp\0f83fe4211a3c4fbe59818fa9c8a3508_JaffaCakes118.exe N/A

Checks whether UAC is enabled

evasion trojan
Description Indicator Process Target
Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0" C:\Users\Admin\AppData\Local\Temp\0f83fe4211a3c4fbe59818fa9c8a3508_JaffaCakes118.exe N/A

Drops file in Windows directory

Description Indicator Process Target
File opened for modification C:\Windows\SYSTEM.INI C:\Users\Admin\AppData\Local\Temp\0f83fe4211a3c4fbe59818fa9c8a3508_JaffaCakes118.exe N/A

Event Triggered Execution: Netsh Helper DLL

persistence privilege_escalation
Description Indicator Process Target
Key opened \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\NetSh C:\Windows\SysWOW64\netsh.exe N/A
Key queried \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\NetSh C:\Windows\SysWOW64\netsh.exe N/A
Key value enumerated \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\NetSh C:\Windows\SysWOW64\netsh.exe N/A

System policy modification

evasion
Description Indicator Process Target
Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0" C:\Users\Admin\AppData\Local\Temp\0f83fe4211a3c4fbe59818fa9c8a3508_JaffaCakes118.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\0f83fe4211a3c4fbe59818fa9c8a3508_JaffaCakes118.exe

"C:\Users\Admin\AppData\Local\Temp\0f83fe4211a3c4fbe59818fa9c8a3508_JaffaCakes118.exe"

C:\Windows\SysWOW64\netsh.exe

netsh firewall set opmode disable

C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe

"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --no-appcompat-clear --field-trial-handle=1036,i,18168883380598738769,14202261231630113808,262144 --variations-seed-version --mojo-platform-channel-handle=4300 /prefetch:8

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 97.17.167.52.in-addr.arpa udp
US 8.8.8.8:53 80.90.14.23.in-addr.arpa udp
US 8.8.8.8:53 136.32.126.40.in-addr.arpa udp
US 8.8.8.8:53 103.169.127.40.in-addr.arpa udp
US 8.8.8.8:53 206.23.85.13.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
US 8.8.8.8:53 82.90.14.23.in-addr.arpa udp

Files

memory/2588-1-0x0000000030000000-0x0000000030028000-memory.dmp

memory/2588-0-0x00000000009E0000-0x0000000001A13000-memory.dmp

memory/2588-5-0x00000000009E0000-0x0000000001A13000-memory.dmp

memory/2588-7-0x0000000030000000-0x0000000030028000-memory.dmp