Malware Analysis Report

2025-04-13 23:23

Sample ID 240427-f86zsscc25
Target 0289ca0e6a5378bb01d2fdb5c84aaf07_JaffaCakes118
SHA256 b20b02e40ef6e17882c380a681278f21ccb3699847cb7f618b78f6be6ba63609
Tags
njrat adobe trojan
score
10/10

Table of Contents

Analysis Overview

MITRE ATT&CK

Enterprise Matrix V15

Analysis: static1

Detonation Overview

Signatures

Analysis: behavioral2

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis: behavioral1

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis Overview

score
10/10

SHA256

b20b02e40ef6e17882c380a681278f21ccb3699847cb7f618b78f6be6ba63609

Threat Level: Known bad

The file 0289ca0e6a5378bb01d2fdb5c84aaf07_JaffaCakes118 was found to be: Known bad.

Malicious Activity Summary

njrat adobe trojan

njRAT/Bladabindi

Checks computer location settings

Loads dropped DLL

Executes dropped EXE

Suspicious use of SetThreadContext

Enumerates physical storage devices

Unsigned PE

Suspicious behavior: EnumeratesProcesses

Suspicious use of AdjustPrivilegeToken

Suspicious use of WriteProcessMemory

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-04-27 05:33

Signatures

Unsigned PE

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

Analysis: behavioral2

Detonation Overview

Submitted

2024-04-27 05:33

Reported

2024-04-27 05:36

Platform

win10v2004-20240226-en

Max time kernel

143s

Max time network

151s

Command Line

"C:\Users\Admin\AppData\Local\Temp\0289ca0e6a5378bb01d2fdb5c84aaf07_JaffaCakes118.exe"

Signatures

njRAT/Bladabindi

trojan njrat

Checks computer location settings

Description Indicator Process Target
Key value queried \REGISTRY\USER\S-1-5-21-3808065738-1666277613-1125846146-1000\Control Panel\International\Geo\Nation C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe N/A

Executes dropped EXE

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Roaming\server.exe N/A

Suspicious use of SetThreadContext

Description Indicator Process Target
PID 1800 set thread context of 3272 N/A C:\Users\Admin\AppData\Local\Temp\0289ca0e6a5378bb01d2fdb5c84aaf07_JaffaCakes118.exe C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe

Enumerates physical storage devices

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Local\Temp\0289ca0e6a5378bb01d2fdb5c84aaf07_JaffaCakes118.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 1800 wrote to memory of 4020 N/A C:\Users\Admin\AppData\Local\Temp\0289ca0e6a5378bb01d2fdb5c84aaf07_JaffaCakes118.exe C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe
PID 1800 wrote to memory of 4020 N/A C:\Users\Admin\AppData\Local\Temp\0289ca0e6a5378bb01d2fdb5c84aaf07_JaffaCakes118.exe C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe
PID 1800 wrote to memory of 4020 N/A C:\Users\Admin\AppData\Local\Temp\0289ca0e6a5378bb01d2fdb5c84aaf07_JaffaCakes118.exe C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe
PID 1800 wrote to memory of 3156 N/A C:\Users\Admin\AppData\Local\Temp\0289ca0e6a5378bb01d2fdb5c84aaf07_JaffaCakes118.exe C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe
PID 1800 wrote to memory of 3156 N/A C:\Users\Admin\AppData\Local\Temp\0289ca0e6a5378bb01d2fdb5c84aaf07_JaffaCakes118.exe C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe
PID 1800 wrote to memory of 3156 N/A C:\Users\Admin\AppData\Local\Temp\0289ca0e6a5378bb01d2fdb5c84aaf07_JaffaCakes118.exe C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe
PID 1800 wrote to memory of 3272 N/A C:\Users\Admin\AppData\Local\Temp\0289ca0e6a5378bb01d2fdb5c84aaf07_JaffaCakes118.exe C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe
PID 1800 wrote to memory of 3272 N/A C:\Users\Admin\AppData\Local\Temp\0289ca0e6a5378bb01d2fdb5c84aaf07_JaffaCakes118.exe C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe
PID 1800 wrote to memory of 3272 N/A C:\Users\Admin\AppData\Local\Temp\0289ca0e6a5378bb01d2fdb5c84aaf07_JaffaCakes118.exe C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe
PID 1800 wrote to memory of 3272 N/A C:\Users\Admin\AppData\Local\Temp\0289ca0e6a5378bb01d2fdb5c84aaf07_JaffaCakes118.exe C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe
PID 1800 wrote to memory of 3272 N/A C:\Users\Admin\AppData\Local\Temp\0289ca0e6a5378bb01d2fdb5c84aaf07_JaffaCakes118.exe C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe
PID 1800 wrote to memory of 3272 N/A C:\Users\Admin\AppData\Local\Temp\0289ca0e6a5378bb01d2fdb5c84aaf07_JaffaCakes118.exe C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe
PID 1800 wrote to memory of 3272 N/A C:\Users\Admin\AppData\Local\Temp\0289ca0e6a5378bb01d2fdb5c84aaf07_JaffaCakes118.exe C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe
PID 3272 wrote to memory of 2932 N/A C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe C:\Users\Admin\AppData\Roaming\server.exe
PID 3272 wrote to memory of 2932 N/A C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe C:\Users\Admin\AppData\Roaming\server.exe
PID 3272 wrote to memory of 2932 N/A C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe C:\Users\Admin\AppData\Roaming\server.exe

Processes

C:\Users\Admin\AppData\Local\Temp\0289ca0e6a5378bb01d2fdb5c84aaf07_JaffaCakes118.exe

"C:\Users\Admin\AppData\Local\Temp\0289ca0e6a5378bb01d2fdb5c84aaf07_JaffaCakes118.exe"

C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe

"C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe"

C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe

"C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe"

C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe

"C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe"

C:\Users\Admin\AppData\Roaming\server.exe

"C:\Users\Admin\AppData\Roaming\server.exe"

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 --mojo-platform-channel-handle=4112 --field-trial-handle=1928,i,13242902252791919845,10377620236057253993,262144 --variations-seed-version /prefetch:8

Network

Country Destination Domain Proto
US 8.8.8.8:53 196.249.167.52.in-addr.arpa udp
US 8.8.8.8:53 0.204.248.87.in-addr.arpa udp
US 8.8.8.8:53 2.159.190.20.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 97.17.167.52.in-addr.arpa udp
US 8.8.8.8:53 228.249.119.40.in-addr.arpa udp
US 8.8.8.8:53 103.169.127.40.in-addr.arpa udp
US 8.8.8.8:53 171.39.242.20.in-addr.arpa udp
US 8.8.8.8:53 133.190.18.2.in-addr.arpa udp
US 8.8.8.8:53 23.236.111.52.in-addr.arpa udp
US 8.8.8.8:53 134.190.18.2.in-addr.arpa udp
US 8.8.8.8:53 chromewebstore.googleapis.com udp
US 8.8.8.8:53 chromewebstore.googleapis.com udp
GB 142.250.187.234:443 chromewebstore.googleapis.com tcp
US 8.8.8.8:53 234.187.250.142.in-addr.arpa udp
US 8.8.8.8:53 174.117.168.52.in-addr.arpa udp

Files

memory/1800-0-0x0000000074F30000-0x00000000756E0000-memory.dmp

memory/1800-1-0x0000000000320000-0x0000000000382000-memory.dmp

memory/1800-2-0x0000000004C20000-0x0000000004C48000-memory.dmp

memory/1800-3-0x0000000004C60000-0x0000000004C6C000-memory.dmp

memory/1800-4-0x0000000004C80000-0x0000000004C9C000-memory.dmp

memory/1800-5-0x0000000004D60000-0x0000000004DFC000-memory.dmp

memory/3272-6-0x0000000000400000-0x000000000041C000-memory.dmp

memory/1800-8-0x0000000074F30000-0x00000000756E0000-memory.dmp

memory/3272-9-0x0000000075120000-0x00000000756D1000-memory.dmp

memory/3272-10-0x0000000075120000-0x00000000756D1000-memory.dmp

memory/3272-11-0x0000000001040000-0x0000000001050000-memory.dmp

C:\Users\Admin\AppData\Roaming\server.exe

MD5 a64daca3cfbcd039df3ec29d3eddd001
SHA1 eee8b2573f71e8d5c3ee7e53af3e6772e090d0f3
SHA256 403752009f29381d5e4036b8be94589c89188f9ce8ef5f86959eaaada019ed36
SHA512 b6fe2d0ae3fcd4442579ecf10d498d61e0f042813c8fc4be8019da77d849cfcf0b168507139a1b5697227c272de9091788f8e03cf1ce13d5b5077568cfa6a479

memory/3272-24-0x0000000075120000-0x00000000756D1000-memory.dmp

memory/2932-26-0x0000000075120000-0x00000000756D1000-memory.dmp

memory/2932-27-0x00000000015A0000-0x00000000015B0000-memory.dmp

memory/2932-29-0x0000000075120000-0x00000000756D1000-memory.dmp

memory/2932-30-0x0000000075120000-0x00000000756D1000-memory.dmp

Analysis: behavioral1

Detonation Overview

Submitted

2024-04-27 05:33

Reported

2024-04-27 05:36

Platform

win7-20240220-en

Max time kernel

119s

Max time network

120s

Command Line

"C:\Users\Admin\AppData\Local\Temp\0289ca0e6a5378bb01d2fdb5c84aaf07_JaffaCakes118.exe"

Signatures

njRAT/Bladabindi

trojan njrat

Executes dropped EXE

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Roaming\server.exe N/A

Loads dropped DLL

Description Indicator Process Target
N/A N/A C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe N/A

Suspicious use of SetThreadContext

Description Indicator Process Target
PID 2240 set thread context of 2884 N/A C:\Users\Admin\AppData\Local\Temp\0289ca0e6a5378bb01d2fdb5c84aaf07_JaffaCakes118.exe C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe

Enumerates physical storage devices

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Local\Temp\0289ca0e6a5378bb01d2fdb5c84aaf07_JaffaCakes118.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 2240 wrote to memory of 2884 N/A C:\Users\Admin\AppData\Local\Temp\0289ca0e6a5378bb01d2fdb5c84aaf07_JaffaCakes118.exe C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe
PID 2240 wrote to memory of 2884 N/A C:\Users\Admin\AppData\Local\Temp\0289ca0e6a5378bb01d2fdb5c84aaf07_JaffaCakes118.exe C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe
PID 2240 wrote to memory of 2884 N/A C:\Users\Admin\AppData\Local\Temp\0289ca0e6a5378bb01d2fdb5c84aaf07_JaffaCakes118.exe C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe
PID 2240 wrote to memory of 2884 N/A C:\Users\Admin\AppData\Local\Temp\0289ca0e6a5378bb01d2fdb5c84aaf07_JaffaCakes118.exe C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe
PID 2240 wrote to memory of 2884 N/A C:\Users\Admin\AppData\Local\Temp\0289ca0e6a5378bb01d2fdb5c84aaf07_JaffaCakes118.exe C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe
PID 2240 wrote to memory of 2884 N/A C:\Users\Admin\AppData\Local\Temp\0289ca0e6a5378bb01d2fdb5c84aaf07_JaffaCakes118.exe C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe
PID 2240 wrote to memory of 2884 N/A C:\Users\Admin\AppData\Local\Temp\0289ca0e6a5378bb01d2fdb5c84aaf07_JaffaCakes118.exe C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe
PID 2240 wrote to memory of 2884 N/A C:\Users\Admin\AppData\Local\Temp\0289ca0e6a5378bb01d2fdb5c84aaf07_JaffaCakes118.exe C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe
PID 2240 wrote to memory of 2884 N/A C:\Users\Admin\AppData\Local\Temp\0289ca0e6a5378bb01d2fdb5c84aaf07_JaffaCakes118.exe C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe
PID 2240 wrote to memory of 2884 N/A C:\Users\Admin\AppData\Local\Temp\0289ca0e6a5378bb01d2fdb5c84aaf07_JaffaCakes118.exe C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe
PID 2240 wrote to memory of 2884 N/A C:\Users\Admin\AppData\Local\Temp\0289ca0e6a5378bb01d2fdb5c84aaf07_JaffaCakes118.exe C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe
PID 2884 wrote to memory of 1208 N/A C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe C:\Users\Admin\AppData\Roaming\server.exe
PID 2884 wrote to memory of 1208 N/A C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe C:\Users\Admin\AppData\Roaming\server.exe
PID 2884 wrote to memory of 1208 N/A C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe C:\Users\Admin\AppData\Roaming\server.exe
PID 2884 wrote to memory of 1208 N/A C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe C:\Users\Admin\AppData\Roaming\server.exe

Processes

C:\Users\Admin\AppData\Local\Temp\0289ca0e6a5378bb01d2fdb5c84aaf07_JaffaCakes118.exe

"C:\Users\Admin\AppData\Local\Temp\0289ca0e6a5378bb01d2fdb5c84aaf07_JaffaCakes118.exe"

C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe

"C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe"

C:\Users\Admin\AppData\Roaming\server.exe

"C:\Users\Admin\AppData\Roaming\server.exe"

Network

N/A

Files

memory/2240-0-0x0000000001280000-0x00000000012E2000-memory.dmp

memory/2240-1-0x0000000074130000-0x000000007481E000-memory.dmp

memory/2240-2-0x00000000002A0000-0x00000000002C8000-memory.dmp

memory/2240-3-0x00000000002E0000-0x00000000002EC000-memory.dmp

memory/2240-4-0x0000000000420000-0x000000000043C000-memory.dmp

memory/2884-11-0x0000000000400000-0x000000000041C000-memory.dmp

memory/2884-9-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

memory/2884-7-0x0000000000400000-0x000000000041C000-memory.dmp

memory/2884-6-0x0000000000400000-0x000000000041C000-memory.dmp

memory/2884-5-0x0000000000400000-0x000000000041C000-memory.dmp

memory/2240-16-0x0000000074130000-0x000000007481E000-memory.dmp

memory/2884-15-0x0000000000400000-0x000000000041C000-memory.dmp

memory/2884-13-0x0000000000400000-0x000000000041C000-memory.dmp

memory/2884-17-0x0000000074130000-0x00000000746DB000-memory.dmp

\Users\Admin\AppData\Roaming\server.exe

MD5 278edbd499374bf73621f8c1f969d894
SHA1 a81170af14747781c5f5f51bb1215893136f0bc0
SHA256 c6999b9f79932c3b4f1c461a69d9dc8dc301d6a155abc33efe1b6e9e4a038391
SHA512 93b0b5c3324bd2df83310f96d34c9176c94d2d676766599c1af33c98ba1efe63187056671f7c6f80c956e5bd0a725f108804021ad93326286bb9c3a96f6550b9

memory/2884-25-0x0000000074130000-0x00000000746DB000-memory.dmp