Malware Analysis Report

2024-08-06 15:26

Sample ID 240524-ytm79ahf89
Target 6fb0685b34af4eb63c87eec8b53d8f49_JaffaCakes118
SHA256 ca7c2b99e99bbad4900a50dbd438bc694df5bbcfd112b996e0581f372acaa88b
Tags
nanocore evasion keylogger persistence spyware stealer trojan
score
10/10

Table of Contents

Analysis Overview

MITRE ATT&CK Matrix

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

ca7c2b99e99bbad4900a50dbd438bc694df5bbcfd112b996e0581f372acaa88b

Threat Level: Known bad

The file 6fb0685b34af4eb63c87eec8b53d8f49_JaffaCakes118 was found to be: Known bad.

Malicious Activity Summary

nanocore evasion keylogger persistence spyware stealer trojan

NanoCore

Adds Run key to start application

Checks whether UAC is enabled

Suspicious use of SetThreadContext

Drops file in Program Files directory

Unsigned PE

Suspicious use of AdjustPrivilegeToken

Suspicious use of WriteProcessMemory

Suspicious behavior: EnumeratesProcesses

Suspicious behavior: GetForegroundWindowSpam

MITRE ATT&CK Matrix V13

Initial Access
TA0001
Execution
TA0002
Persistence
TA0003
Boot or Logon Autostart Execution
T1547
Registry Run Keys / Startup Folder
T1547.001
Privilege Escalation
TA0004
Boot or Logon Autostart Execution
T1547
Registry Run Keys / Startup Folder
T1547.001
Defense Evasion
TA0005
Modify Registry
T1112
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

2024-05-24 20:04

Signatures

Unsigned PE

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

Analysis: behavioral2

Detonation Overview

Submitted

2024-05-24 20:04

Reported

2024-05-24 20:07

Platform

win10v2004-20240508-en

Max time kernel

148s

Max time network

150s

Command Line

"C:\Users\Admin\AppData\Local\Temp\6fb0685b34af4eb63c87eec8b53d8f49_JaffaCakes118.exe"

Signatures

NanoCore

keylogger trojan stealer spyware nanocore

Adds Run key to start application

persistence
Description Indicator Process Target
Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\DHCP Service = "C:\\Program Files (x86)\\DHCP Service\\dhcpsv.exe" C:\Users\Admin\AppData\Local\Temp\6fb0685b34af4eb63c87eec8b53d8f49_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:\Users\Admin\AppData\Local\Temp\6fb0685b34af4eb63c87eec8b53d8f49_JaffaCakes118.exe N/A

Suspicious use of SetThreadContext

Description Indicator Process Target
PID 1396 set thread context of 5104 N/A C:\Users\Admin\AppData\Local\Temp\6fb0685b34af4eb63c87eec8b53d8f49_JaffaCakes118.exe C:\Users\Admin\AppData\Local\Temp\6fb0685b34af4eb63c87eec8b53d8f49_JaffaCakes118.exe

Drops file in Program Files directory

Description Indicator Process Target
File opened for modification C:\Program Files (x86)\DHCP Service\dhcpsv.exe C:\Users\Admin\AppData\Local\Temp\6fb0685b34af4eb63c87eec8b53d8f49_JaffaCakes118.exe N/A
File created C:\Program Files (x86)\DHCP Service\dhcpsv.exe C:\Users\Admin\AppData\Local\Temp\6fb0685b34af4eb63c87eec8b53d8f49_JaffaCakes118.exe N/A

Suspicious behavior: EnumeratesProcesses

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\6fb0685b34af4eb63c87eec8b53d8f49_JaffaCakes118.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\6fb0685b34af4eb63c87eec8b53d8f49_JaffaCakes118.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\6fb0685b34af4eb63c87eec8b53d8f49_JaffaCakes118.exe N/A

Suspicious behavior: GetForegroundWindowSpam

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\6fb0685b34af4eb63c87eec8b53d8f49_JaffaCakes118.exe N/A

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Local\Temp\6fb0685b34af4eb63c87eec8b53d8f49_JaffaCakes118.exe N/A
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Local\Temp\6fb0685b34af4eb63c87eec8b53d8f49_JaffaCakes118.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 1396 wrote to memory of 5104 N/A C:\Users\Admin\AppData\Local\Temp\6fb0685b34af4eb63c87eec8b53d8f49_JaffaCakes118.exe C:\Users\Admin\AppData\Local\Temp\6fb0685b34af4eb63c87eec8b53d8f49_JaffaCakes118.exe
PID 1396 wrote to memory of 5104 N/A C:\Users\Admin\AppData\Local\Temp\6fb0685b34af4eb63c87eec8b53d8f49_JaffaCakes118.exe C:\Users\Admin\AppData\Local\Temp\6fb0685b34af4eb63c87eec8b53d8f49_JaffaCakes118.exe
PID 1396 wrote to memory of 5104 N/A C:\Users\Admin\AppData\Local\Temp\6fb0685b34af4eb63c87eec8b53d8f49_JaffaCakes118.exe C:\Users\Admin\AppData\Local\Temp\6fb0685b34af4eb63c87eec8b53d8f49_JaffaCakes118.exe
PID 1396 wrote to memory of 5104 N/A C:\Users\Admin\AppData\Local\Temp\6fb0685b34af4eb63c87eec8b53d8f49_JaffaCakes118.exe C:\Users\Admin\AppData\Local\Temp\6fb0685b34af4eb63c87eec8b53d8f49_JaffaCakes118.exe
PID 1396 wrote to memory of 5104 N/A C:\Users\Admin\AppData\Local\Temp\6fb0685b34af4eb63c87eec8b53d8f49_JaffaCakes118.exe C:\Users\Admin\AppData\Local\Temp\6fb0685b34af4eb63c87eec8b53d8f49_JaffaCakes118.exe
PID 1396 wrote to memory of 5104 N/A C:\Users\Admin\AppData\Local\Temp\6fb0685b34af4eb63c87eec8b53d8f49_JaffaCakes118.exe C:\Users\Admin\AppData\Local\Temp\6fb0685b34af4eb63c87eec8b53d8f49_JaffaCakes118.exe
PID 1396 wrote to memory of 5104 N/A C:\Users\Admin\AppData\Local\Temp\6fb0685b34af4eb63c87eec8b53d8f49_JaffaCakes118.exe C:\Users\Admin\AppData\Local\Temp\6fb0685b34af4eb63c87eec8b53d8f49_JaffaCakes118.exe
PID 1396 wrote to memory of 5104 N/A C:\Users\Admin\AppData\Local\Temp\6fb0685b34af4eb63c87eec8b53d8f49_JaffaCakes118.exe C:\Users\Admin\AppData\Local\Temp\6fb0685b34af4eb63c87eec8b53d8f49_JaffaCakes118.exe

Processes

C:\Users\Admin\AppData\Local\Temp\6fb0685b34af4eb63c87eec8b53d8f49_JaffaCakes118.exe

"C:\Users\Admin\AppData\Local\Temp\6fb0685b34af4eb63c87eec8b53d8f49_JaffaCakes118.exe"

C:\Users\Admin\AppData\Local\Temp\6fb0685b34af4eb63c87eec8b53d8f49_JaffaCakes118.exe

"C:\Users\Admin\AppData\Local\Temp\6fb0685b34af4eb63c87eec8b53d8f49_JaffaCakes118.exe"

Network

Country Destination Domain Proto
US 8.8.8.8:53 28.118.140.52.in-addr.arpa udp
US 8.8.8.8:53 249.197.17.2.in-addr.arpa udp
US 8.8.8.8:53 franex.gotdns.ch udp
US 184.105.237.195:10008 franex.gotdns.ch tcp
US 8.8.8.8:53 138.32.126.40.in-addr.arpa udp
US 8.8.8.8:53 195.237.105.184.in-addr.arpa udp
US 8.8.8.8:53 205.47.74.20.in-addr.arpa udp
US 8.8.8.8:53 franex.gotdns.ch udp
US 184.105.237.195:10008 franex.gotdns.ch tcp
US 8.8.8.8:53 183.59.114.20.in-addr.arpa udp
US 8.8.8.8:53 206.23.85.13.in-addr.arpa udp
US 8.8.8.8:53 101.58.20.217.in-addr.arpa udp
US 8.8.8.8:53 franex.gotdns.ch udp
US 184.105.237.195:10008 franex.gotdns.ch tcp
US 8.8.8.8:53 88.156.103.20.in-addr.arpa udp
US 8.8.8.8:53 franex.hopto.org udp
US 8.8.4.4:53 franex.hopto.org udp
US 8.8.8.8:53 franex.hopto.org udp
US 8.8.8.8:53 4.4.8.8.in-addr.arpa udp
US 8.8.8.8:53 18.24.18.2.in-addr.arpa udp
US 8.8.8.8:53 19.229.111.52.in-addr.arpa udp
US 8.8.8.8:53 franex.hopto.org udp
US 8.8.4.4:53 franex.hopto.org udp
US 8.8.8.8:53 franex.hopto.org udp
US 8.8.4.4:53 franex.hopto.org udp
US 8.8.8.8:53 franex.hopto.org udp
US 8.8.8.8:53 tse1.mm.bing.net udp
US 204.79.197.200:443 tse1.mm.bing.net tcp
US 204.79.197.200:443 tse1.mm.bing.net tcp
US 204.79.197.200:443 tse1.mm.bing.net tcp
US 204.79.197.200:443 tse1.mm.bing.net tcp
US 8.8.8.8:53 26.35.223.20.in-addr.arpa udp
US 8.8.8.8:53 franex.gotdns.ch udp
US 184.105.237.195:10008 franex.gotdns.ch tcp
US 8.8.8.8:53 200.197.79.204.in-addr.arpa udp
US 8.8.8.8:53 franex.gotdns.ch udp
US 184.105.237.195:10008 franex.gotdns.ch tcp

Files

memory/1396-0-0x000000007481E000-0x000000007481F000-memory.dmp

memory/1396-1-0x00000000009F0000-0x0000000000A5E000-memory.dmp

memory/1396-2-0x0000000005A60000-0x0000000006004000-memory.dmp

memory/1396-3-0x00000000053F0000-0x0000000005482000-memory.dmp

memory/1396-4-0x0000000074810000-0x0000000074FC0000-memory.dmp

memory/1396-5-0x00000000055C0000-0x00000000055CA000-memory.dmp

memory/1396-6-0x0000000006B90000-0x0000000006C2C000-memory.dmp

memory/1396-7-0x0000000005A10000-0x0000000005A4E000-memory.dmp

memory/5104-10-0x0000000000400000-0x0000000000438000-memory.dmp

memory/5104-12-0x0000000074810000-0x0000000074FC0000-memory.dmp

memory/5104-9-0x0000000000400000-0x0000000000438000-memory.dmp

memory/5104-8-0x0000000000400000-0x0000000000438000-memory.dmp

memory/5104-14-0x0000000074810000-0x0000000074FC0000-memory.dmp

memory/1396-18-0x0000000074810000-0x0000000074FC0000-memory.dmp

memory/5104-17-0x00000000053E0000-0x00000000053EA000-memory.dmp

memory/5104-19-0x0000000005600000-0x000000000561E000-memory.dmp

memory/5104-20-0x00000000061A0000-0x00000000061AA000-memory.dmp

memory/5104-21-0x0000000074810000-0x0000000074FC0000-memory.dmp

memory/5104-22-0x0000000074810000-0x0000000074FC0000-memory.dmp

Analysis: behavioral1

Detonation Overview

Submitted

2024-05-24 20:04

Reported

2024-05-24 20:07

Platform

win7-20240215-en

Max time kernel

129s

Max time network

148s

Command Line

"C:\Users\Admin\AppData\Local\Temp\6fb0685b34af4eb63c87eec8b53d8f49_JaffaCakes118.exe"

Signatures

NanoCore

keylogger trojan stealer spyware nanocore

Adds Run key to start application

persistence
Description Indicator Process Target
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\DDP Subsystem = "C:\\Program Files (x86)\\DDP Subsystem\\ddpss.exe" C:\Users\Admin\AppData\Local\Temp\6fb0685b34af4eb63c87eec8b53d8f49_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:\Users\Admin\AppData\Local\Temp\6fb0685b34af4eb63c87eec8b53d8f49_JaffaCakes118.exe N/A

Suspicious use of SetThreadContext

Description Indicator Process Target
PID 2944 set thread context of 3052 N/A C:\Users\Admin\AppData\Local\Temp\6fb0685b34af4eb63c87eec8b53d8f49_JaffaCakes118.exe C:\Users\Admin\AppData\Local\Temp\6fb0685b34af4eb63c87eec8b53d8f49_JaffaCakes118.exe

Drops file in Program Files directory

Description Indicator Process Target
File created C:\Program Files (x86)\DDP Subsystem\ddpss.exe C:\Users\Admin\AppData\Local\Temp\6fb0685b34af4eb63c87eec8b53d8f49_JaffaCakes118.exe N/A
File opened for modification C:\Program Files (x86)\DDP Subsystem\ddpss.exe C:\Users\Admin\AppData\Local\Temp\6fb0685b34af4eb63c87eec8b53d8f49_JaffaCakes118.exe N/A

Suspicious behavior: EnumeratesProcesses

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\6fb0685b34af4eb63c87eec8b53d8f49_JaffaCakes118.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\6fb0685b34af4eb63c87eec8b53d8f49_JaffaCakes118.exe N/A

Suspicious behavior: GetForegroundWindowSpam

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\6fb0685b34af4eb63c87eec8b53d8f49_JaffaCakes118.exe N/A

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Local\Temp\6fb0685b34af4eb63c87eec8b53d8f49_JaffaCakes118.exe N/A
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Local\Temp\6fb0685b34af4eb63c87eec8b53d8f49_JaffaCakes118.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 2944 wrote to memory of 3052 N/A C:\Users\Admin\AppData\Local\Temp\6fb0685b34af4eb63c87eec8b53d8f49_JaffaCakes118.exe C:\Users\Admin\AppData\Local\Temp\6fb0685b34af4eb63c87eec8b53d8f49_JaffaCakes118.exe
PID 2944 wrote to memory of 3052 N/A C:\Users\Admin\AppData\Local\Temp\6fb0685b34af4eb63c87eec8b53d8f49_JaffaCakes118.exe C:\Users\Admin\AppData\Local\Temp\6fb0685b34af4eb63c87eec8b53d8f49_JaffaCakes118.exe
PID 2944 wrote to memory of 3052 N/A C:\Users\Admin\AppData\Local\Temp\6fb0685b34af4eb63c87eec8b53d8f49_JaffaCakes118.exe C:\Users\Admin\AppData\Local\Temp\6fb0685b34af4eb63c87eec8b53d8f49_JaffaCakes118.exe
PID 2944 wrote to memory of 3052 N/A C:\Users\Admin\AppData\Local\Temp\6fb0685b34af4eb63c87eec8b53d8f49_JaffaCakes118.exe C:\Users\Admin\AppData\Local\Temp\6fb0685b34af4eb63c87eec8b53d8f49_JaffaCakes118.exe
PID 2944 wrote to memory of 3052 N/A C:\Users\Admin\AppData\Local\Temp\6fb0685b34af4eb63c87eec8b53d8f49_JaffaCakes118.exe C:\Users\Admin\AppData\Local\Temp\6fb0685b34af4eb63c87eec8b53d8f49_JaffaCakes118.exe
PID 2944 wrote to memory of 3052 N/A C:\Users\Admin\AppData\Local\Temp\6fb0685b34af4eb63c87eec8b53d8f49_JaffaCakes118.exe C:\Users\Admin\AppData\Local\Temp\6fb0685b34af4eb63c87eec8b53d8f49_JaffaCakes118.exe
PID 2944 wrote to memory of 3052 N/A C:\Users\Admin\AppData\Local\Temp\6fb0685b34af4eb63c87eec8b53d8f49_JaffaCakes118.exe C:\Users\Admin\AppData\Local\Temp\6fb0685b34af4eb63c87eec8b53d8f49_JaffaCakes118.exe
PID 2944 wrote to memory of 3052 N/A C:\Users\Admin\AppData\Local\Temp\6fb0685b34af4eb63c87eec8b53d8f49_JaffaCakes118.exe C:\Users\Admin\AppData\Local\Temp\6fb0685b34af4eb63c87eec8b53d8f49_JaffaCakes118.exe
PID 2944 wrote to memory of 3052 N/A C:\Users\Admin\AppData\Local\Temp\6fb0685b34af4eb63c87eec8b53d8f49_JaffaCakes118.exe C:\Users\Admin\AppData\Local\Temp\6fb0685b34af4eb63c87eec8b53d8f49_JaffaCakes118.exe

Processes

C:\Users\Admin\AppData\Local\Temp\6fb0685b34af4eb63c87eec8b53d8f49_JaffaCakes118.exe

"C:\Users\Admin\AppData\Local\Temp\6fb0685b34af4eb63c87eec8b53d8f49_JaffaCakes118.exe"

C:\Users\Admin\AppData\Local\Temp\6fb0685b34af4eb63c87eec8b53d8f49_JaffaCakes118.exe

"C:\Users\Admin\AppData\Local\Temp\6fb0685b34af4eb63c87eec8b53d8f49_JaffaCakes118.exe"

Network

Country Destination Domain Proto
US 8.8.8.8:53 franex.gotdns.ch udp
US 184.105.237.195:10008 franex.gotdns.ch tcp
US 8.8.8.8:53 franex.gotdns.ch udp
US 184.105.237.195:10008 franex.gotdns.ch tcp
US 8.8.8.8:53 franex.gotdns.ch udp
US 184.105.237.195:10008 franex.gotdns.ch tcp
US 8.8.8.8:53 franex.hopto.org udp
US 8.8.4.4:53 franex.hopto.org udp
US 8.8.8.8:53 franex.hopto.org udp
US 8.8.8.8:53 franex.hopto.org udp
US 8.8.4.4:53 franex.hopto.org udp
US 8.8.8.8:53 franex.hopto.org udp
US 8.8.4.4:53 franex.hopto.org udp
US 8.8.8.8:53 franex.gotdns.ch udp
US 184.105.237.195:10008 franex.gotdns.ch tcp
US 8.8.8.8:53 franex.gotdns.ch udp
US 184.105.237.195:10008 franex.gotdns.ch tcp

Files

memory/2944-0-0x0000000074AAE000-0x0000000074AAF000-memory.dmp

memory/2944-1-0x00000000008F0000-0x000000000095E000-memory.dmp

memory/2944-2-0x0000000074AA0000-0x000000007518E000-memory.dmp

memory/2944-3-0x0000000002170000-0x00000000021AE000-memory.dmp

memory/3052-4-0x0000000000400000-0x0000000000438000-memory.dmp

memory/3052-11-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

memory/3052-16-0x0000000000400000-0x0000000000438000-memory.dmp

memory/3052-15-0x0000000000400000-0x0000000000438000-memory.dmp

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

memory/3052-5-0x0000000000400000-0x0000000000438000-memory.dmp

memory/3052-10-0x0000000000400000-0x0000000000438000-memory.dmp

memory/3052-6-0x0000000000400000-0x0000000000438000-memory.dmp

memory/3052-17-0x0000000074AA0000-0x000000007518E000-memory.dmp

memory/3052-18-0x0000000074AA0000-0x000000007518E000-memory.dmp

memory/2944-19-0x0000000074AA0000-0x000000007518E000-memory.dmp

memory/3052-22-0x00000000004C0000-0x00000000004CA000-memory.dmp

memory/3052-23-0x00000000004D0000-0x00000000004EE000-memory.dmp

memory/3052-24-0x0000000000530000-0x000000000053A000-memory.dmp

memory/3052-25-0x0000000074AA0000-0x000000007518E000-memory.dmp

memory/3052-26-0x0000000074AA0000-0x000000007518E000-memory.dmp