Malware Analysis Report

2024-08-06 14:50

Sample ID 240617-b3g19ssfjl
Target b637c3b199f38672138ee252608e56af_JaffaCakes118
SHA256 31de2b0e1dff55d6f2b577c5dfa193b261e77df67141f034ec39ade4b17bfd4e
Tags
nanocore keylogger spyware stealer trojan
score
10/10

Table of Contents

Analysis Overview

MITRE ATT&CK Matrix

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

31de2b0e1dff55d6f2b577c5dfa193b261e77df67141f034ec39ade4b17bfd4e

Threat Level: Known bad

The file b637c3b199f38672138ee252608e56af_JaffaCakes118 was found to be: Known bad.

Malicious Activity Summary

nanocore keylogger spyware stealer trojan

NanoCore

Suspicious use of SetThreadContext

Unsigned PE

Suspicious behavior: EnumeratesProcesses

Suspicious behavior: GetForegroundWindowSpam

Suspicious use of AdjustPrivilegeToken

Suspicious use of WriteProcessMemory

MITRE ATT&CK Matrix

N/A

Analysis: static1

Detonation Overview

Reported

2024-06-17 01:39

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-06-17 01:39

Reported

2024-06-17 01:42

Platform

win7-20240508-en

Max time kernel

139s

Max time network

148s

Command Line

"C:\Users\Admin\AppData\Local\Temp\b637c3b199f38672138ee252608e56af_JaffaCakes118.exe"

Signatures

NanoCore

keylogger trojan stealer spyware nanocore

Suspicious use of SetThreadContext

Description Indicator Process Target
PID 3016 set thread context of 2580 N/A C:\Users\Admin\AppData\Local\Temp\b637c3b199f38672138ee252608e56af_JaffaCakes118.exe C:\Windows\Microsoft.NET\Framework\v2.0.50727\MSBuild.exe

Suspicious behavior: EnumeratesProcesses

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\b637c3b199f38672138ee252608e56af_JaffaCakes118.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\b637c3b199f38672138ee252608e56af_JaffaCakes118.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\b637c3b199f38672138ee252608e56af_JaffaCakes118.exe N/A
N/A N/A C:\Windows\Microsoft.NET\Framework\v2.0.50727\MSBuild.exe N/A
N/A N/A C:\Windows\Microsoft.NET\Framework\v2.0.50727\MSBuild.exe N/A

Suspicious behavior: GetForegroundWindowSpam

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

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Local\Temp\b637c3b199f38672138ee252608e56af_JaffaCakes118.exe N/A
Token: SeDebugPrivilege N/A C:\Windows\Microsoft.NET\Framework\v2.0.50727\MSBuild.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 3016 wrote to memory of 2580 N/A C:\Users\Admin\AppData\Local\Temp\b637c3b199f38672138ee252608e56af_JaffaCakes118.exe C:\Windows\Microsoft.NET\Framework\v2.0.50727\MSBuild.exe
PID 3016 wrote to memory of 2580 N/A C:\Users\Admin\AppData\Local\Temp\b637c3b199f38672138ee252608e56af_JaffaCakes118.exe C:\Windows\Microsoft.NET\Framework\v2.0.50727\MSBuild.exe
PID 3016 wrote to memory of 2580 N/A C:\Users\Admin\AppData\Local\Temp\b637c3b199f38672138ee252608e56af_JaffaCakes118.exe C:\Windows\Microsoft.NET\Framework\v2.0.50727\MSBuild.exe
PID 3016 wrote to memory of 2580 N/A C:\Users\Admin\AppData\Local\Temp\b637c3b199f38672138ee252608e56af_JaffaCakes118.exe C:\Windows\Microsoft.NET\Framework\v2.0.50727\MSBuild.exe
PID 3016 wrote to memory of 2580 N/A C:\Users\Admin\AppData\Local\Temp\b637c3b199f38672138ee252608e56af_JaffaCakes118.exe C:\Windows\Microsoft.NET\Framework\v2.0.50727\MSBuild.exe
PID 3016 wrote to memory of 2580 N/A C:\Users\Admin\AppData\Local\Temp\b637c3b199f38672138ee252608e56af_JaffaCakes118.exe C:\Windows\Microsoft.NET\Framework\v2.0.50727\MSBuild.exe
PID 3016 wrote to memory of 2580 N/A C:\Users\Admin\AppData\Local\Temp\b637c3b199f38672138ee252608e56af_JaffaCakes118.exe C:\Windows\Microsoft.NET\Framework\v2.0.50727\MSBuild.exe
PID 3016 wrote to memory of 2580 N/A C:\Users\Admin\AppData\Local\Temp\b637c3b199f38672138ee252608e56af_JaffaCakes118.exe C:\Windows\Microsoft.NET\Framework\v2.0.50727\MSBuild.exe
PID 3016 wrote to memory of 2580 N/A C:\Users\Admin\AppData\Local\Temp\b637c3b199f38672138ee252608e56af_JaffaCakes118.exe C:\Windows\Microsoft.NET\Framework\v2.0.50727\MSBuild.exe

Processes

C:\Users\Admin\AppData\Local\Temp\b637c3b199f38672138ee252608e56af_JaffaCakes118.exe

"C:\Users\Admin\AppData\Local\Temp\b637c3b199f38672138ee252608e56af_JaffaCakes118.exe"

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

"{path}"

Network

Country Destination Domain Proto
US 8.8.8.8:53 u852121.nvpn.to udp
US 8.8.4.4:53 u852121.nvpn.to udp
US 8.8.8.8:53 u852121.nvpn.to udp
US 8.8.8.8:53 u852121.nvpn.to udp
US 8.8.4.4:53 u852121.nvpn.to udp
US 8.8.8.8:53 u852121.nvpn.to udp

Files

memory/3016-0-0x0000000074741000-0x0000000074742000-memory.dmp

memory/3016-1-0x0000000074740000-0x0000000074CEB000-memory.dmp

memory/3016-2-0x0000000074740000-0x0000000074CEB000-memory.dmp

memory/3016-3-0x0000000074740000-0x0000000074CEB000-memory.dmp

memory/3016-4-0x0000000074740000-0x0000000074CEB000-memory.dmp

memory/2580-5-0x0000000000400000-0x0000000000438000-memory.dmp

memory/2580-15-0x0000000000400000-0x0000000000438000-memory.dmp

memory/2580-13-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

memory/2580-11-0x0000000000400000-0x0000000000438000-memory.dmp

memory/2580-9-0x0000000000400000-0x0000000000438000-memory.dmp

memory/2580-7-0x0000000000400000-0x0000000000438000-memory.dmp

memory/2580-19-0x0000000000400000-0x0000000000438000-memory.dmp

memory/2580-21-0x0000000074740000-0x0000000074CEB000-memory.dmp

memory/2580-20-0x0000000074740000-0x0000000074CEB000-memory.dmp

memory/3016-22-0x0000000074740000-0x0000000074CEB000-memory.dmp

memory/2580-17-0x0000000000400000-0x0000000000438000-memory.dmp

memory/2580-24-0x0000000074740000-0x0000000074CEB000-memory.dmp

memory/2580-25-0x0000000074740000-0x0000000074CEB000-memory.dmp

memory/2580-26-0x0000000074740000-0x0000000074CEB000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-06-17 01:39

Reported

2024-06-17 01:42

Platform

win10v2004-20240611-en

Max time kernel

150s

Max time network

150s

Command Line

"C:\Users\Admin\AppData\Local\Temp\b637c3b199f38672138ee252608e56af_JaffaCakes118.exe"

Signatures

NanoCore

keylogger trojan stealer spyware nanocore

Suspicious use of SetThreadContext

Description Indicator Process Target
PID 1484 set thread context of 4812 N/A C:\Users\Admin\AppData\Local\Temp\b637c3b199f38672138ee252608e56af_JaffaCakes118.exe C:\Windows\Microsoft.NET\Framework\v2.0.50727\MSBuild.exe

Suspicious behavior: EnumeratesProcesses

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\b637c3b199f38672138ee252608e56af_JaffaCakes118.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\b637c3b199f38672138ee252608e56af_JaffaCakes118.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\b637c3b199f38672138ee252608e56af_JaffaCakes118.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\b637c3b199f38672138ee252608e56af_JaffaCakes118.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\b637c3b199f38672138ee252608e56af_JaffaCakes118.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\b637c3b199f38672138ee252608e56af_JaffaCakes118.exe N/A
N/A N/A C:\Windows\Microsoft.NET\Framework\v2.0.50727\MSBuild.exe N/A
N/A N/A C:\Windows\Microsoft.NET\Framework\v2.0.50727\MSBuild.exe N/A
N/A N/A C:\Windows\Microsoft.NET\Framework\v2.0.50727\MSBuild.exe N/A

Suspicious behavior: GetForegroundWindowSpam

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

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Local\Temp\b637c3b199f38672138ee252608e56af_JaffaCakes118.exe N/A
Token: SeDebugPrivilege N/A C:\Windows\Microsoft.NET\Framework\v2.0.50727\MSBuild.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 1484 wrote to memory of 1912 N/A C:\Users\Admin\AppData\Local\Temp\b637c3b199f38672138ee252608e56af_JaffaCakes118.exe C:\Windows\Microsoft.NET\Framework\v2.0.50727\MSBuild.exe
PID 1484 wrote to memory of 1912 N/A C:\Users\Admin\AppData\Local\Temp\b637c3b199f38672138ee252608e56af_JaffaCakes118.exe C:\Windows\Microsoft.NET\Framework\v2.0.50727\MSBuild.exe
PID 1484 wrote to memory of 1912 N/A C:\Users\Admin\AppData\Local\Temp\b637c3b199f38672138ee252608e56af_JaffaCakes118.exe C:\Windows\Microsoft.NET\Framework\v2.0.50727\MSBuild.exe
PID 1484 wrote to memory of 4812 N/A C:\Users\Admin\AppData\Local\Temp\b637c3b199f38672138ee252608e56af_JaffaCakes118.exe C:\Windows\Microsoft.NET\Framework\v2.0.50727\MSBuild.exe
PID 1484 wrote to memory of 4812 N/A C:\Users\Admin\AppData\Local\Temp\b637c3b199f38672138ee252608e56af_JaffaCakes118.exe C:\Windows\Microsoft.NET\Framework\v2.0.50727\MSBuild.exe
PID 1484 wrote to memory of 4812 N/A C:\Users\Admin\AppData\Local\Temp\b637c3b199f38672138ee252608e56af_JaffaCakes118.exe C:\Windows\Microsoft.NET\Framework\v2.0.50727\MSBuild.exe
PID 1484 wrote to memory of 4812 N/A C:\Users\Admin\AppData\Local\Temp\b637c3b199f38672138ee252608e56af_JaffaCakes118.exe C:\Windows\Microsoft.NET\Framework\v2.0.50727\MSBuild.exe
PID 1484 wrote to memory of 4812 N/A C:\Users\Admin\AppData\Local\Temp\b637c3b199f38672138ee252608e56af_JaffaCakes118.exe C:\Windows\Microsoft.NET\Framework\v2.0.50727\MSBuild.exe
PID 1484 wrote to memory of 4812 N/A C:\Users\Admin\AppData\Local\Temp\b637c3b199f38672138ee252608e56af_JaffaCakes118.exe C:\Windows\Microsoft.NET\Framework\v2.0.50727\MSBuild.exe
PID 1484 wrote to memory of 4812 N/A C:\Users\Admin\AppData\Local\Temp\b637c3b199f38672138ee252608e56af_JaffaCakes118.exe C:\Windows\Microsoft.NET\Framework\v2.0.50727\MSBuild.exe
PID 1484 wrote to memory of 4812 N/A C:\Users\Admin\AppData\Local\Temp\b637c3b199f38672138ee252608e56af_JaffaCakes118.exe C:\Windows\Microsoft.NET\Framework\v2.0.50727\MSBuild.exe

Processes

C:\Users\Admin\AppData\Local\Temp\b637c3b199f38672138ee252608e56af_JaffaCakes118.exe

"C:\Users\Admin\AppData\Local\Temp\b637c3b199f38672138ee252608e56af_JaffaCakes118.exe"

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

"{path}"

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

"{path}"

Network

Country Destination Domain Proto
US 8.8.8.8:53 133.32.126.40.in-addr.arpa udp
US 8.8.8.8:53 45.19.74.20.in-addr.arpa udp
US 8.8.8.8:53 203.107.17.2.in-addr.arpa udp
US 8.8.8.8:53 26.165.165.52.in-addr.arpa udp
US 8.8.8.8:53 56.126.166.20.in-addr.arpa udp
US 8.8.8.8:53 92.12.20.2.in-addr.arpa udp
US 8.8.8.8:53 172.210.232.199.in-addr.arpa udp
US 8.8.8.8:53 u852121.nvpn.to udp
SE 185.217.1.169:3410 u852121.nvpn.to tcp
US 8.8.8.8:53 u852121.nvpn.to udp
SE 185.217.1.169:3410 u852121.nvpn.to tcp
US 8.8.8.8:53 u852121.nvpn.to udp
SE 185.217.1.169:3410 u852121.nvpn.to tcp
US 8.8.8.8:53 240.221.184.93.in-addr.arpa udp
US 8.8.8.8:53 u852121.nvpn.to udp
SE 185.217.1.169:3410 u852121.nvpn.to tcp
US 8.8.8.8:53 u852121.nvpn.to udp
SE 185.217.1.169:3410 u852121.nvpn.to tcp
US 8.8.8.8:53 u852121.nvpn.to udp
SE 185.217.1.169:3410 u852121.nvpn.to tcp
US 8.8.8.8:53 u852121.nvpn.to udp
SE 185.217.1.169:3410 u852121.nvpn.to tcp
US 8.8.8.8:53 u852121.nvpn.to udp
SE 185.217.1.169:3410 u852121.nvpn.to tcp
US 8.8.8.8:53 u852121.nvpn.to udp
SE 185.217.1.169:3410 u852121.nvpn.to tcp
US 8.8.8.8:53 u852121.nvpn.to udp
SE 185.217.1.169:3410 u852121.nvpn.to tcp
US 8.8.8.8:53 u852121.nvpn.to udp
SE 185.217.1.169:3410 u852121.nvpn.to tcp
US 8.8.8.8:53 udp

Files

memory/1484-0-0x0000000075442000-0x0000000075443000-memory.dmp

memory/1484-1-0x0000000075440000-0x00000000759F1000-memory.dmp

memory/1484-2-0x0000000075440000-0x00000000759F1000-memory.dmp

memory/1484-3-0x0000000075440000-0x00000000759F1000-memory.dmp

memory/1484-4-0x0000000075442000-0x0000000075443000-memory.dmp

memory/1484-5-0x0000000075440000-0x00000000759F1000-memory.dmp

memory/4812-6-0x0000000000400000-0x0000000000438000-memory.dmp

memory/4812-8-0x0000000075440000-0x00000000759F1000-memory.dmp

memory/1484-9-0x0000000075440000-0x00000000759F1000-memory.dmp

memory/4812-11-0x0000000075440000-0x00000000759F1000-memory.dmp

memory/4812-10-0x0000000075440000-0x00000000759F1000-memory.dmp

memory/4812-13-0x0000000075440000-0x00000000759F1000-memory.dmp

memory/4812-14-0x0000000075440000-0x00000000759F1000-memory.dmp

memory/4812-15-0x0000000075440000-0x00000000759F1000-memory.dmp