Malware Analysis Report

2024-08-06 14:44

Sample ID 240626-142vhaxajg
Target 13a733e32aa3f317fd087999257a5d2e_JaffaCakes118
SHA256 07d377ce32bbdbb123c2808d3abeca3d0135cf120429821cf0ae0696d412bd39
Tags
nanocore evasion 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

07d377ce32bbdbb123c2808d3abeca3d0135cf120429821cf0ae0696d412bd39

Threat Level: Known bad

The file 13a733e32aa3f317fd087999257a5d2e_JaffaCakes118 was found to be: Known bad.

Malicious Activity Summary

nanocore evasion keylogger spyware stealer trojan

NanoCore

Drops startup file

Checks whether UAC is enabled

Suspicious use of SetThreadContext

AutoIT Executable

Unsigned PE

Suspicious behavior: EnumeratesProcesses

Suspicious use of AdjustPrivilegeToken

Suspicious use of WriteProcessMemory

Suspicious behavior: GetForegroundWindowSpam

Suspicious use of FindShellTrayWindow

Suspicious use of SendNotifyMessage

MITRE ATT&CK Matrix V13

Initial Access
TA0001
Execution
TA0002
Persistence
TA0003
Privilege Escalation
TA0004
Defense Evasion
TA0005
Credential Access
TA0006
Discovery
TA0007
System Information Discovery
T1082
Lateral Movement
TA0008
Collection
TA0009
Exfiltration
TA0010
Command and Control
TA0011
Impact
TA0040
Resource Development
TA0042
Reconnaissance
TA0043

Analysis: static1

Detonation Overview

Reported

2024-06-26 22:13

Signatures

AutoIT Executable

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

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-06-26 22:13

Reported

2024-06-26 22:15

Platform

win7-20240611-en

Max time kernel

147s

Max time network

134s

Command Line

"C:\Users\Admin\AppData\Local\Temp\13a733e32aa3f317fd087999257a5d2e_JaffaCakes118.exe"

Signatures

NanoCore

keylogger trojan stealer spyware nanocore

Drops startup file

Description Indicator Process Target
File created C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Firefoxx.url C:\Users\Admin\AppData\Local\Temp\13a733e32aa3f317fd087999257a5d2e_JaffaCakes118.exe N/A

Checks whether UAC is enabled

evasion trojan
Description Indicator Process Target
Key value queried \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe N/A

Suspicious use of SetThreadContext

Description Indicator Process Target
PID 1936 set thread context of 3052 N/A C:\Users\Admin\AppData\Local\Temp\13a733e32aa3f317fd087999257a5d2e_JaffaCakes118.exe C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe

Suspicious behavior: EnumeratesProcesses

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\13a733e32aa3f317fd087999257a5d2e_JaffaCakes118.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\13a733e32aa3f317fd087999257a5d2e_JaffaCakes118.exe N/A
N/A N/A C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe N/A
N/A N/A C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe N/A

Suspicious behavior: GetForegroundWindowSpam

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

Suspicious use of AdjustPrivilegeToken

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

Suspicious use of FindShellTrayWindow

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\13a733e32aa3f317fd087999257a5d2e_JaffaCakes118.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\13a733e32aa3f317fd087999257a5d2e_JaffaCakes118.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\13a733e32aa3f317fd087999257a5d2e_JaffaCakes118.exe N/A

Suspicious use of SendNotifyMessage

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\13a733e32aa3f317fd087999257a5d2e_JaffaCakes118.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\13a733e32aa3f317fd087999257a5d2e_JaffaCakes118.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\13a733e32aa3f317fd087999257a5d2e_JaffaCakes118.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 1936 wrote to memory of 3052 N/A C:\Users\Admin\AppData\Local\Temp\13a733e32aa3f317fd087999257a5d2e_JaffaCakes118.exe C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe
PID 1936 wrote to memory of 3052 N/A C:\Users\Admin\AppData\Local\Temp\13a733e32aa3f317fd087999257a5d2e_JaffaCakes118.exe C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe
PID 1936 wrote to memory of 3052 N/A C:\Users\Admin\AppData\Local\Temp\13a733e32aa3f317fd087999257a5d2e_JaffaCakes118.exe C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe
PID 1936 wrote to memory of 3052 N/A C:\Users\Admin\AppData\Local\Temp\13a733e32aa3f317fd087999257a5d2e_JaffaCakes118.exe C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe
PID 1936 wrote to memory of 3052 N/A C:\Users\Admin\AppData\Local\Temp\13a733e32aa3f317fd087999257a5d2e_JaffaCakes118.exe C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe
PID 1936 wrote to memory of 3052 N/A C:\Users\Admin\AppData\Local\Temp\13a733e32aa3f317fd087999257a5d2e_JaffaCakes118.exe C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe
PID 1936 wrote to memory of 3052 N/A C:\Users\Admin\AppData\Local\Temp\13a733e32aa3f317fd087999257a5d2e_JaffaCakes118.exe C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe
PID 1936 wrote to memory of 3052 N/A C:\Users\Admin\AppData\Local\Temp\13a733e32aa3f317fd087999257a5d2e_JaffaCakes118.exe C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe
PID 1936 wrote to memory of 3052 N/A C:\Users\Admin\AppData\Local\Temp\13a733e32aa3f317fd087999257a5d2e_JaffaCakes118.exe C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe

Processes

C:\Users\Admin\AppData\Local\Temp\13a733e32aa3f317fd087999257a5d2e_JaffaCakes118.exe

"C:\Users\Admin\AppData\Local\Temp\13a733e32aa3f317fd087999257a5d2e_JaffaCakes118.exe"

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

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

Network

Country Destination Domain Proto
NO 194.5.98.32:1990 tcp
NO 194.5.98.32:1990 tcp
NO 194.5.98.32:1990 tcp
N/A 127.0.0.1:1990 tcp
N/A 127.0.0.1:1990 tcp
N/A 127.0.0.1:1990 tcp

Files

memory/3052-6-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

memory/3052-2-0x0000000000400000-0x0000000000438000-memory.dmp

memory/1936-10-0x00000000002C0000-0x00000000002C1000-memory.dmp

memory/3052-9-0x0000000000400000-0x0000000000438000-memory.dmp

memory/3052-8-0x0000000000400000-0x0000000000438000-memory.dmp

memory/3052-0-0x0000000000400000-0x0000000000438000-memory.dmp

memory/3052-11-0x0000000074062000-0x0000000074064000-memory.dmp

memory/3052-17-0x0000000074062000-0x0000000074064000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-06-26 22:13

Reported

2024-06-26 22:15

Platform

win10v2004-20240508-en

Max time kernel

145s

Max time network

147s

Command Line

"C:\Users\Admin\AppData\Local\Temp\13a733e32aa3f317fd087999257a5d2e_JaffaCakes118.exe"

Signatures

NanoCore

keylogger trojan stealer spyware nanocore

Drops startup file

Description Indicator Process Target
File created C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Firefoxx.url C:\Users\Admin\AppData\Local\Temp\13a733e32aa3f317fd087999257a5d2e_JaffaCakes118.exe N/A

Checks whether UAC is enabled

evasion trojan
Description Indicator Process Target
Key value queried \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe N/A

Suspicious use of SetThreadContext

Description Indicator Process Target
PID 4292 set thread context of 1808 N/A C:\Users\Admin\AppData\Local\Temp\13a733e32aa3f317fd087999257a5d2e_JaffaCakes118.exe C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe

Suspicious behavior: EnumeratesProcesses

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\13a733e32aa3f317fd087999257a5d2e_JaffaCakes118.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\13a733e32aa3f317fd087999257a5d2e_JaffaCakes118.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\13a733e32aa3f317fd087999257a5d2e_JaffaCakes118.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\13a733e32aa3f317fd087999257a5d2e_JaffaCakes118.exe N/A
N/A N/A C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe N/A
N/A N/A C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe N/A
N/A N/A C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe N/A

Suspicious behavior: GetForegroundWindowSpam

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

Suspicious use of AdjustPrivilegeToken

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

Suspicious use of FindShellTrayWindow

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\13a733e32aa3f317fd087999257a5d2e_JaffaCakes118.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\13a733e32aa3f317fd087999257a5d2e_JaffaCakes118.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\13a733e32aa3f317fd087999257a5d2e_JaffaCakes118.exe N/A

Suspicious use of SendNotifyMessage

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\13a733e32aa3f317fd087999257a5d2e_JaffaCakes118.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\13a733e32aa3f317fd087999257a5d2e_JaffaCakes118.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\13a733e32aa3f317fd087999257a5d2e_JaffaCakes118.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 4292 wrote to memory of 1808 N/A C:\Users\Admin\AppData\Local\Temp\13a733e32aa3f317fd087999257a5d2e_JaffaCakes118.exe C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe
PID 4292 wrote to memory of 1808 N/A C:\Users\Admin\AppData\Local\Temp\13a733e32aa3f317fd087999257a5d2e_JaffaCakes118.exe C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe
PID 4292 wrote to memory of 1808 N/A C:\Users\Admin\AppData\Local\Temp\13a733e32aa3f317fd087999257a5d2e_JaffaCakes118.exe C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe
PID 4292 wrote to memory of 1808 N/A C:\Users\Admin\AppData\Local\Temp\13a733e32aa3f317fd087999257a5d2e_JaffaCakes118.exe C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe
PID 4292 wrote to memory of 1808 N/A C:\Users\Admin\AppData\Local\Temp\13a733e32aa3f317fd087999257a5d2e_JaffaCakes118.exe C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe

Processes

C:\Users\Admin\AppData\Local\Temp\13a733e32aa3f317fd087999257a5d2e_JaffaCakes118.exe

"C:\Users\Admin\AppData\Local\Temp\13a733e32aa3f317fd087999257a5d2e_JaffaCakes118.exe"

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

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

Network

Country Destination Domain Proto
NO 194.5.98.32:1990 tcp
NO 194.5.98.32:1990 tcp

Files

memory/1808-1-0x0000000000400000-0x0000000000438000-memory.dmp

memory/4292-5-0x0000000000560000-0x0000000000561000-memory.dmp

memory/1808-6-0x0000000074122000-0x0000000074123000-memory.dmp

memory/1808-7-0x0000000074120000-0x00000000746D1000-memory.dmp

memory/1808-8-0x0000000074120000-0x00000000746D1000-memory.dmp

memory/1808-14-0x0000000074120000-0x00000000746D1000-memory.dmp

memory/1808-15-0x0000000074122000-0x0000000074123000-memory.dmp

memory/1808-16-0x0000000074120000-0x00000000746D1000-memory.dmp