Malware Analysis Report

2024-08-06 15:25

Sample ID 240517-vmlt3ahg4w
Target 508d20f4ac741b76d4fe3e4c2a51bbcd_JaffaCakes118
SHA256 f5ed244699bfd20b6c2a9fe44f2f99aba7d0c7a27419da8c65342878d949d688
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: 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

f5ed244699bfd20b6c2a9fe44f2f99aba7d0c7a27419da8c65342878d949d688

Threat Level: Known bad

The file 508d20f4ac741b76d4fe3e4c2a51bbcd_JaffaCakes118 was found to be: Known bad.

Malicious Activity Summary

nanocore evasion keylogger persistence spyware stealer trojan

NanoCore

Checks computer location settings

Executes dropped EXE

Loads dropped DLL

Adds Run key to start application

Checks whether UAC is enabled

Suspicious use of SetThreadContext

Drops file in Program Files directory

Unsigned PE

Enumerates physical storage devices

Suspicious behavior: EnumeratesProcesses

Suspicious use of AdjustPrivilegeToken

Suspicious behavior: GetForegroundWindowSpam

Suspicious use of WriteProcessMemory

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
Query Registry
T1012
Lateral Movement
TA0008
Collection
TA0009
Exfiltration
TA0010
Command and Control
TA0011
Impact
TA0040
Resource Development
TA0042
Reconnaissance
TA0043

Analysis: static1

Detonation Overview

Reported

2024-05-17 17:06

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-05-17 17:06

Reported

2024-05-17 17:09

Platform

win7-20240221-en

Max time kernel

148s

Max time network

153s

Command Line

"C:\Users\Admin\AppData\Local\Temp\508d20f4ac741b76d4fe3e4c2a51bbcd_JaffaCakes118.exe"

Signatures

NanoCore

keylogger trojan stealer spyware nanocore

Executes dropped EXE

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

Loads dropped DLL

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\508d20f4ac741b76d4fe3e4c2a51bbcd_JaffaCakes118.exe N/A

Adds Run key to start application

persistence
Description Indicator Process Target
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\DDP Service = "C:\\Program Files (x86)\\DDP Service\\ddpsv.exe" C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.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 2360 set thread context of 1972 N/A C:\Users\Admin\AppData\Local\app.exe C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe

Drops file in Program Files directory

Description Indicator Process Target
File created C:\Program Files (x86)\DDP Service\ddpsv.exe C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe N/A
File opened for modification C:\Program Files (x86)\DDP Service\ddpsv.exe C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe N/A

Enumerates physical storage devices

Suspicious behavior: EnumeratesProcesses

Description Indicator Process Target
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:\Users\Admin\AppData\Local\Temp\508d20f4ac741b76d4fe3e4c2a51bbcd_JaffaCakes118.exe N/A
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Local\app.exe N/A
Token: SeDebugPrivilege N/A C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 2224 wrote to memory of 2360 N/A C:\Users\Admin\AppData\Local\Temp\508d20f4ac741b76d4fe3e4c2a51bbcd_JaffaCakes118.exe C:\Users\Admin\AppData\Local\app.exe
PID 2224 wrote to memory of 2360 N/A C:\Users\Admin\AppData\Local\Temp\508d20f4ac741b76d4fe3e4c2a51bbcd_JaffaCakes118.exe C:\Users\Admin\AppData\Local\app.exe
PID 2224 wrote to memory of 2360 N/A C:\Users\Admin\AppData\Local\Temp\508d20f4ac741b76d4fe3e4c2a51bbcd_JaffaCakes118.exe C:\Users\Admin\AppData\Local\app.exe
PID 2224 wrote to memory of 2360 N/A C:\Users\Admin\AppData\Local\Temp\508d20f4ac741b76d4fe3e4c2a51bbcd_JaffaCakes118.exe C:\Users\Admin\AppData\Local\app.exe
PID 2360 wrote to memory of 1972 N/A C:\Users\Admin\AppData\Local\app.exe C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe
PID 2360 wrote to memory of 1972 N/A C:\Users\Admin\AppData\Local\app.exe C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe
PID 2360 wrote to memory of 1972 N/A C:\Users\Admin\AppData\Local\app.exe C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe
PID 2360 wrote to memory of 1972 N/A C:\Users\Admin\AppData\Local\app.exe C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe
PID 2360 wrote to memory of 1972 N/A C:\Users\Admin\AppData\Local\app.exe C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe
PID 2360 wrote to memory of 1972 N/A C:\Users\Admin\AppData\Local\app.exe C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe
PID 2360 wrote to memory of 1972 N/A C:\Users\Admin\AppData\Local\app.exe C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe
PID 2360 wrote to memory of 1972 N/A C:\Users\Admin\AppData\Local\app.exe C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe
PID 2360 wrote to memory of 1972 N/A C:\Users\Admin\AppData\Local\app.exe C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe
PID 2360 wrote to memory of 1972 N/A C:\Users\Admin\AppData\Local\app.exe C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe
PID 2360 wrote to memory of 1972 N/A C:\Users\Admin\AppData\Local\app.exe C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe
PID 2360 wrote to memory of 1972 N/A C:\Users\Admin\AppData\Local\app.exe C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe

Processes

C:\Users\Admin\AppData\Local\Temp\508d20f4ac741b76d4fe3e4c2a51bbcd_JaffaCakes118.exe

"C:\Users\Admin\AppData\Local\Temp\508d20f4ac741b76d4fe3e4c2a51bbcd_JaffaCakes118.exe"

C:\Users\Admin\AppData\Local\app.exe

"C:\Users\Admin\AppData\Local\app.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
US 181.215.247.6:5655 tcp
US 181.215.247.6:5655 tcp
US 181.215.247.6:5655 tcp
US 181.215.247.6:5655 tcp
US 181.215.247.6:5655 tcp
US 181.215.247.6:5655 tcp
US 181.215.247.6:5655 tcp
US 181.215.247.6:5655 tcp
US 181.215.247.6:5655 tcp

Files

memory/2224-0-0x0000000075011000-0x0000000075012000-memory.dmp

memory/2224-1-0x0000000075010000-0x00000000755BB000-memory.dmp

memory/2224-2-0x0000000075010000-0x00000000755BB000-memory.dmp

memory/2224-3-0x0000000075010000-0x00000000755BB000-memory.dmp

memory/2224-4-0x0000000075010000-0x00000000755BB000-memory.dmp

\Users\Admin\AppData\Local\app.exe

MD5 508d20f4ac741b76d4fe3e4c2a51bbcd
SHA1 1cfe2d1d325c0ecddcd805a9857ee7b3cdebf4ec
SHA256 f5ed244699bfd20b6c2a9fe44f2f99aba7d0c7a27419da8c65342878d949d688
SHA512 2874a61be9ff2f634c39f8b68ba2a2d060e42a04a25029142d681da55cf6d742d12716a625b67120c70e92ebc81a1f0cc93851aab2f4032c28a792205e8eb296

memory/2360-12-0x0000000075010000-0x00000000755BB000-memory.dmp

memory/2360-13-0x0000000075010000-0x00000000755BB000-memory.dmp

memory/2360-14-0x0000000075010000-0x00000000755BB000-memory.dmp

memory/2224-15-0x0000000075010000-0x00000000755BB000-memory.dmp

memory/2360-16-0x0000000075010000-0x00000000755BB000-memory.dmp

memory/2360-17-0x0000000075010000-0x00000000755BB000-memory.dmp

memory/1972-18-0x0000000000400000-0x0000000000438000-memory.dmp

memory/1972-22-0x0000000000400000-0x0000000000438000-memory.dmp

memory/1972-20-0x0000000000400000-0x0000000000438000-memory.dmp

memory/2360-23-0x0000000075010000-0x00000000755BB000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-05-17 17:06

Reported

2024-05-17 17:09

Platform

win10v2004-20240426-en

Max time kernel

148s

Max time network

151s

Command Line

"C:\Users\Admin\AppData\Local\Temp\508d20f4ac741b76d4fe3e4c2a51bbcd_JaffaCakes118.exe"

Signatures

NanoCore

keylogger trojan stealer spyware nanocore

Checks computer location settings

Description Indicator Process Target
Key value queried \REGISTRY\USER\S-1-5-21-540404634-651139247-2967210625-1000\Control Panel\International\Geo\Nation C:\Users\Admin\AppData\Local\Temp\508d20f4ac741b76d4fe3e4c2a51bbcd_JaffaCakes118.exe N/A

Executes dropped EXE

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

Adds Run key to start application

persistence
Description Indicator Process Target
Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\WPA Monitor = "C:\\Program Files (x86)\\WPA Monitor\\wpamon.exe" C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.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 1196 set thread context of 1012 N/A C:\Users\Admin\AppData\Local\app.exe C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe

Drops file in Program Files directory

Description Indicator Process Target
File opened for modification C:\Program Files (x86)\WPA Monitor\wpamon.exe C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe N/A
File created C:\Program Files (x86)\WPA Monitor\wpamon.exe C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe N/A

Enumerates physical storage devices

Suspicious behavior: EnumeratesProcesses

Description Indicator Process Target
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:\Users\Admin\AppData\Local\Temp\508d20f4ac741b76d4fe3e4c2a51bbcd_JaffaCakes118.exe N/A
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Local\app.exe N/A
Token: SeDebugPrivilege N/A C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 608 wrote to memory of 1196 N/A C:\Users\Admin\AppData\Local\Temp\508d20f4ac741b76d4fe3e4c2a51bbcd_JaffaCakes118.exe C:\Users\Admin\AppData\Local\app.exe
PID 608 wrote to memory of 1196 N/A C:\Users\Admin\AppData\Local\Temp\508d20f4ac741b76d4fe3e4c2a51bbcd_JaffaCakes118.exe C:\Users\Admin\AppData\Local\app.exe
PID 608 wrote to memory of 1196 N/A C:\Users\Admin\AppData\Local\Temp\508d20f4ac741b76d4fe3e4c2a51bbcd_JaffaCakes118.exe C:\Users\Admin\AppData\Local\app.exe
PID 1196 wrote to memory of 1012 N/A C:\Users\Admin\AppData\Local\app.exe C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe
PID 1196 wrote to memory of 1012 N/A C:\Users\Admin\AppData\Local\app.exe C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe
PID 1196 wrote to memory of 1012 N/A C:\Users\Admin\AppData\Local\app.exe C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe
PID 1196 wrote to memory of 1012 N/A C:\Users\Admin\AppData\Local\app.exe C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe
PID 1196 wrote to memory of 1012 N/A C:\Users\Admin\AppData\Local\app.exe C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe
PID 1196 wrote to memory of 1012 N/A C:\Users\Admin\AppData\Local\app.exe C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe
PID 1196 wrote to memory of 1012 N/A C:\Users\Admin\AppData\Local\app.exe C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe
PID 1196 wrote to memory of 1012 N/A C:\Users\Admin\AppData\Local\app.exe C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe

Processes

C:\Users\Admin\AppData\Local\Temp\508d20f4ac741b76d4fe3e4c2a51bbcd_JaffaCakes118.exe

"C:\Users\Admin\AppData\Local\Temp\508d20f4ac741b76d4fe3e4c2a51bbcd_JaffaCakes118.exe"

C:\Users\Admin\AppData\Local\app.exe

"C:\Users\Admin\AppData\Local\app.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
US 8.8.8.8:53 8.8.8.8.in-addr.arpa udp
US 8.8.8.8:53 g.bing.com udp
US 204.79.197.237:443 g.bing.com tcp
NL 23.62.61.90:443 www.bing.com tcp
US 8.8.8.8:53 104.219.191.52.in-addr.arpa udp
US 8.8.8.8:53 202.131.50.23.in-addr.arpa udp
US 8.8.8.8:53 237.197.79.204.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 90.61.62.23.in-addr.arpa udp
US 8.8.8.8:53 75.159.190.20.in-addr.arpa udp
US 8.8.8.8:53 205.47.74.20.in-addr.arpa udp
US 8.8.8.8:53 149.220.183.52.in-addr.arpa udp
US 181.215.247.6:5655 tcp
US 181.215.247.6:5655 tcp
US 8.8.8.8:53 157.123.68.40.in-addr.arpa udp
US 8.8.8.8:53 206.23.85.13.in-addr.arpa udp
US 181.215.247.6:5655 tcp
US 181.215.247.6:5655 tcp
US 8.8.8.8:53 208.131.50.23.in-addr.arpa udp
US 181.215.247.6:5655 tcp
US 8.8.8.8:53 172.210.232.199.in-addr.arpa udp
US 8.8.8.8:53 22.236.111.52.in-addr.arpa udp
US 181.215.247.6:5655 tcp
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 43.58.199.20.in-addr.arpa udp
US 181.215.247.6:5655 tcp
US 181.215.247.6:5655 tcp
US 181.215.247.6:5655 tcp

Files

memory/608-0-0x0000000074842000-0x0000000074843000-memory.dmp

memory/608-1-0x0000000074840000-0x0000000074DF1000-memory.dmp

memory/608-2-0x0000000074840000-0x0000000074DF1000-memory.dmp

memory/608-3-0x0000000074840000-0x0000000074DF1000-memory.dmp

memory/608-4-0x0000000074840000-0x0000000074DF1000-memory.dmp

C:\Users\Admin\AppData\Local\app.exe

MD5 508d20f4ac741b76d4fe3e4c2a51bbcd
SHA1 1cfe2d1d325c0ecddcd805a9857ee7b3cdebf4ec
SHA256 f5ed244699bfd20b6c2a9fe44f2f99aba7d0c7a27419da8c65342878d949d688
SHA512 2874a61be9ff2f634c39f8b68ba2a2d060e42a04a25029142d681da55cf6d742d12716a625b67120c70e92ebc81a1f0cc93851aab2f4032c28a792205e8eb296

memory/1196-17-0x0000000074840000-0x0000000074DF1000-memory.dmp

memory/1196-19-0x0000000074840000-0x0000000074DF1000-memory.dmp

memory/608-18-0x0000000074840000-0x0000000074DF1000-memory.dmp

memory/1196-20-0x0000000074840000-0x0000000074DF1000-memory.dmp

memory/1196-21-0x0000000074840000-0x0000000074DF1000-memory.dmp

memory/1012-22-0x0000000000400000-0x0000000000438000-memory.dmp

memory/1196-24-0x0000000074840000-0x0000000074DF1000-memory.dmp

memory/1012-25-0x0000000074840000-0x0000000074DF1000-memory.dmp

memory/1012-26-0x0000000074840000-0x0000000074DF1000-memory.dmp

memory/1012-27-0x0000000074840000-0x0000000074DF1000-memory.dmp

memory/1012-30-0x0000000074840000-0x0000000074DF1000-memory.dmp