Malware Analysis Report

2024-08-06 15:25

Sample ID 240521-r4sr6ahf31
Target 63aa8d53b25ce3b3499898ae8ab7238a_JaffaCakes118
SHA256 449a8747d69be2bf577b7eddceb5d7b9dcea3d932f0bb041b5af638fe6a643d6
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

449a8747d69be2bf577b7eddceb5d7b9dcea3d932f0bb041b5af638fe6a643d6

Threat Level: Known bad

The file 63aa8d53b25ce3b3499898ae8ab7238a_JaffaCakes118 was found to be: Known bad.

Malicious Activity Summary

nanocore evasion keylogger persistence spyware stealer trojan

Nanocore family

NanoCore

Checks whether UAC is enabled

Adds Run key to start application

Drops file in Program Files directory

Unsigned PE

Creates scheduled task(s)

Suspicious behavior: GetForegroundWindowSpam

Suspicious use of AdjustPrivilegeToken

Suspicious use of WriteProcessMemory

Suspicious behavior: EnumeratesProcesses

MITRE ATT&CK Matrix V13

Initial Access
TA0001
Execution
TA0002
Scheduled Task/Job
T1053
Persistence
TA0003
Boot or Logon Autostart Execution
T1547
Registry Run Keys / Startup Folder
T1547.001
Scheduled Task/Job
T1053
Privilege Escalation
TA0004
Boot or Logon Autostart Execution
T1547
Registry Run Keys / Startup Folder
T1547.001
Scheduled Task/Job
T1053
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

2024-05-21 14:45

Signatures

Nanocore family

nanocore

Unsigned PE

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

Analysis: behavioral2

Detonation Overview

Submitted

2024-05-21 14:45

Reported

2024-05-21 14:47

Platform

win10v2004-20240426-en

Max time kernel

137s

Max time network

148s

Command Line

"C:\Users\Admin\AppData\Local\Temp\63aa8d53b25ce3b3499898ae8ab7238a_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\WPA Monitor = "C:\\Program Files (x86)\\WPA Monitor\\wpamon.exe" C:\Users\Admin\AppData\Local\Temp\63aa8d53b25ce3b3499898ae8ab7238a_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\63aa8d53b25ce3b3499898ae8ab7238a_JaffaCakes118.exe N/A

Drops file in Program Files directory

Description Indicator Process Target
File opened for modification C:\Program Files (x86)\WPA Monitor\wpamon.exe C:\Users\Admin\AppData\Local\Temp\63aa8d53b25ce3b3499898ae8ab7238a_JaffaCakes118.exe N/A
File created C:\Program Files (x86)\WPA Monitor\wpamon.exe C:\Users\Admin\AppData\Local\Temp\63aa8d53b25ce3b3499898ae8ab7238a_JaffaCakes118.exe N/A

Creates scheduled task(s)

persistence
Description Indicator Process Target
N/A N/A C:\Windows\SysWOW64\schtasks.exe N/A
N/A N/A C:\Windows\SysWOW64\schtasks.exe N/A

Suspicious behavior: EnumeratesProcesses

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\63aa8d53b25ce3b3499898ae8ab7238a_JaffaCakes118.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\63aa8d53b25ce3b3499898ae8ab7238a_JaffaCakes118.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\63aa8d53b25ce3b3499898ae8ab7238a_JaffaCakes118.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\63aa8d53b25ce3b3499898ae8ab7238a_JaffaCakes118.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\63aa8d53b25ce3b3499898ae8ab7238a_JaffaCakes118.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\63aa8d53b25ce3b3499898ae8ab7238a_JaffaCakes118.exe N/A

Suspicious behavior: GetForegroundWindowSpam

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\63aa8d53b25ce3b3499898ae8ab7238a_JaffaCakes118.exe N/A

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Local\Temp\63aa8d53b25ce3b3499898ae8ab7238a_JaffaCakes118.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 2324 wrote to memory of 3076 N/A C:\Users\Admin\AppData\Local\Temp\63aa8d53b25ce3b3499898ae8ab7238a_JaffaCakes118.exe C:\Windows\SysWOW64\schtasks.exe
PID 2324 wrote to memory of 3076 N/A C:\Users\Admin\AppData\Local\Temp\63aa8d53b25ce3b3499898ae8ab7238a_JaffaCakes118.exe C:\Windows\SysWOW64\schtasks.exe
PID 2324 wrote to memory of 3076 N/A C:\Users\Admin\AppData\Local\Temp\63aa8d53b25ce3b3499898ae8ab7238a_JaffaCakes118.exe C:\Windows\SysWOW64\schtasks.exe
PID 2324 wrote to memory of 4664 N/A C:\Users\Admin\AppData\Local\Temp\63aa8d53b25ce3b3499898ae8ab7238a_JaffaCakes118.exe C:\Windows\SysWOW64\schtasks.exe
PID 2324 wrote to memory of 4664 N/A C:\Users\Admin\AppData\Local\Temp\63aa8d53b25ce3b3499898ae8ab7238a_JaffaCakes118.exe C:\Windows\SysWOW64\schtasks.exe
PID 2324 wrote to memory of 4664 N/A C:\Users\Admin\AppData\Local\Temp\63aa8d53b25ce3b3499898ae8ab7238a_JaffaCakes118.exe C:\Windows\SysWOW64\schtasks.exe

Processes

C:\Users\Admin\AppData\Local\Temp\63aa8d53b25ce3b3499898ae8ab7238a_JaffaCakes118.exe

"C:\Users\Admin\AppData\Local\Temp\63aa8d53b25ce3b3499898ae8ab7238a_JaffaCakes118.exe"

C:\Windows\SysWOW64\schtasks.exe

"schtasks.exe" /create /f /tn "WPA Monitor" /xml "C:\Users\Admin\AppData\Local\Temp\tmp34AC.tmp"

C:\Windows\SysWOW64\schtasks.exe

"schtasks.exe" /create /f /tn "WPA Monitor Task" /xml "C:\Users\Admin\AppData\Local\Temp\tmp350B.tmp"

Network

Country Destination Domain Proto
US 8.8.8.8:53 154.239.44.20.in-addr.arpa udp
US 24.144.103.48:54984 tcp
US 8.8.8.8:53 172.210.232.199.in-addr.arpa udp
US 8.8.8.8:53 17.53.126.40.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 217.106.137.52.in-addr.arpa udp
US 24.144.103.48:54984 tcp
US 8.8.8.8:53 103.169.127.40.in-addr.arpa udp
US 8.8.8.8:53 18.31.95.13.in-addr.arpa udp
US 24.144.103.48:54984 tcp
N/A 127.0.0.1:54984 tcp
N/A 127.0.0.1:54984 tcp
N/A 127.0.0.1:54984 tcp
US 8.8.8.8:53 88.156.103.20.in-addr.arpa udp
US 8.8.8.8:53 0.205.248.87.in-addr.arpa udp
US 24.144.103.48:54984 tcp
US 52.111.227.11:443 tcp
US 24.144.103.48:54984 tcp
US 8.8.8.8:53 43.229.111.52.in-addr.arpa udp
US 8.8.8.8:53 26.35.223.20.in-addr.arpa 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
NL 23.62.61.194:443 www.bing.com tcp
US 8.8.8.8:53 200.197.79.204.in-addr.arpa udp
US 8.8.8.8:53 194.61.62.23.in-addr.arpa udp
US 24.144.103.48:54984 tcp
N/A 127.0.0.1:54984 tcp
N/A 127.0.0.1:54984 tcp
N/A 127.0.0.1:54984 tcp
US 24.144.103.48:54984 tcp

Files

memory/2324-0-0x0000000075192000-0x0000000075193000-memory.dmp

memory/2324-1-0x0000000075190000-0x0000000075741000-memory.dmp

memory/2324-2-0x0000000075190000-0x0000000075741000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\tmp34AC.tmp

MD5 7cea9a967f0ea62dd665abce9592ab82
SHA1 093c7860bc4aeb73708cbb3e08e2ce563568236e
SHA256 52f2c479a8925aa34359ef376e643b74c2f5566fed0cf03fa8336db11f6976ef
SHA512 e759f532905465c71ce34863fd57bef9d82e85dd9c3bc6ab6a9871a2369b004582debaadcba8381dc1053c0ef6da494f1b61d2ef20d75201c2012c0c29853867

C:\Users\Admin\AppData\Local\Temp\tmp350B.tmp

MD5 a246b3561d823177f3586e629f144233
SHA1 0f05d12e55a1d2e5e6a4f307c193882fba093315
SHA256 6abae7707b06e52b58f537b335e367cc54b093e899d78f16e94ceaf7ceafca52
SHA512 4246aa9a96331e2c7e36b37fa778e31ecae055c77164e0dc673aa50cdec368f08d356ab06ef1a4540816c474828048ab1bebed7e211a4eb929f2918e1fac9c6d

memory/2324-10-0x0000000075190000-0x0000000075741000-memory.dmp

memory/2324-11-0x0000000075192000-0x0000000075193000-memory.dmp

memory/2324-12-0x0000000075190000-0x0000000075741000-memory.dmp

memory/2324-13-0x0000000075190000-0x0000000075741000-memory.dmp

Analysis: behavioral1

Detonation Overview

Submitted

2024-05-21 14:45

Reported

2024-05-21 14:47

Platform

win7-20240221-en

Max time kernel

147s

Max time network

149s

Command Line

"C:\Users\Admin\AppData\Local\Temp\63aa8d53b25ce3b3499898ae8ab7238a_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 Host = "C:\\Program Files (x86)\\DHCP Host\\dhcphost.exe" C:\Users\Admin\AppData\Local\Temp\63aa8d53b25ce3b3499898ae8ab7238a_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\63aa8d53b25ce3b3499898ae8ab7238a_JaffaCakes118.exe N/A

Drops file in Program Files directory

Description Indicator Process Target
File created C:\Program Files (x86)\DHCP Host\dhcphost.exe C:\Users\Admin\AppData\Local\Temp\63aa8d53b25ce3b3499898ae8ab7238a_JaffaCakes118.exe N/A
File opened for modification C:\Program Files (x86)\DHCP Host\dhcphost.exe C:\Users\Admin\AppData\Local\Temp\63aa8d53b25ce3b3499898ae8ab7238a_JaffaCakes118.exe N/A

Creates scheduled task(s)

persistence
Description Indicator Process Target
N/A N/A C:\Windows\SysWOW64\schtasks.exe N/A
N/A N/A C:\Windows\SysWOW64\schtasks.exe N/A

Suspicious behavior: EnumeratesProcesses

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\63aa8d53b25ce3b3499898ae8ab7238a_JaffaCakes118.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\63aa8d53b25ce3b3499898ae8ab7238a_JaffaCakes118.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\63aa8d53b25ce3b3499898ae8ab7238a_JaffaCakes118.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\63aa8d53b25ce3b3499898ae8ab7238a_JaffaCakes118.exe N/A

Suspicious behavior: GetForegroundWindowSpam

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\63aa8d53b25ce3b3499898ae8ab7238a_JaffaCakes118.exe N/A

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Local\Temp\63aa8d53b25ce3b3499898ae8ab7238a_JaffaCakes118.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 2968 wrote to memory of 1560 N/A C:\Users\Admin\AppData\Local\Temp\63aa8d53b25ce3b3499898ae8ab7238a_JaffaCakes118.exe C:\Windows\SysWOW64\schtasks.exe
PID 2968 wrote to memory of 1560 N/A C:\Users\Admin\AppData\Local\Temp\63aa8d53b25ce3b3499898ae8ab7238a_JaffaCakes118.exe C:\Windows\SysWOW64\schtasks.exe
PID 2968 wrote to memory of 1560 N/A C:\Users\Admin\AppData\Local\Temp\63aa8d53b25ce3b3499898ae8ab7238a_JaffaCakes118.exe C:\Windows\SysWOW64\schtasks.exe
PID 2968 wrote to memory of 1560 N/A C:\Users\Admin\AppData\Local\Temp\63aa8d53b25ce3b3499898ae8ab7238a_JaffaCakes118.exe C:\Windows\SysWOW64\schtasks.exe
PID 2968 wrote to memory of 2640 N/A C:\Users\Admin\AppData\Local\Temp\63aa8d53b25ce3b3499898ae8ab7238a_JaffaCakes118.exe C:\Windows\SysWOW64\schtasks.exe
PID 2968 wrote to memory of 2640 N/A C:\Users\Admin\AppData\Local\Temp\63aa8d53b25ce3b3499898ae8ab7238a_JaffaCakes118.exe C:\Windows\SysWOW64\schtasks.exe
PID 2968 wrote to memory of 2640 N/A C:\Users\Admin\AppData\Local\Temp\63aa8d53b25ce3b3499898ae8ab7238a_JaffaCakes118.exe C:\Windows\SysWOW64\schtasks.exe
PID 2968 wrote to memory of 2640 N/A C:\Users\Admin\AppData\Local\Temp\63aa8d53b25ce3b3499898ae8ab7238a_JaffaCakes118.exe C:\Windows\SysWOW64\schtasks.exe

Processes

C:\Users\Admin\AppData\Local\Temp\63aa8d53b25ce3b3499898ae8ab7238a_JaffaCakes118.exe

"C:\Users\Admin\AppData\Local\Temp\63aa8d53b25ce3b3499898ae8ab7238a_JaffaCakes118.exe"

C:\Windows\SysWOW64\schtasks.exe

"schtasks.exe" /create /f /tn "DHCP Host" /xml "C:\Users\Admin\AppData\Local\Temp\tmp1593.tmp"

C:\Windows\SysWOW64\schtasks.exe

"schtasks.exe" /create /f /tn "DHCP Host Task" /xml "C:\Users\Admin\AppData\Local\Temp\tmp1621.tmp"

Network

Country Destination Domain Proto
US 24.144.103.48:54984 tcp
US 24.144.103.48:54984 tcp
US 24.144.103.48:54984 tcp
N/A 127.0.0.1:54984 tcp
N/A 127.0.0.1:54984 tcp
N/A 127.0.0.1:54984 tcp
US 24.144.103.48:54984 tcp
US 24.144.103.48:54984 tcp
US 24.144.103.48:54984 tcp
N/A 127.0.0.1:54984 tcp
N/A 127.0.0.1:54984 tcp
N/A 127.0.0.1:54984 tcp
US 24.144.103.48:54984 tcp
US 24.144.103.48:54984 tcp

Files

memory/2968-0-0x0000000074A81000-0x0000000074A82000-memory.dmp

memory/2968-1-0x0000000074A80000-0x000000007502B000-memory.dmp

memory/2968-2-0x0000000074A80000-0x000000007502B000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\tmp1593.tmp

MD5 7cea9a967f0ea62dd665abce9592ab82
SHA1 093c7860bc4aeb73708cbb3e08e2ce563568236e
SHA256 52f2c479a8925aa34359ef376e643b74c2f5566fed0cf03fa8336db11f6976ef
SHA512 e759f532905465c71ce34863fd57bef9d82e85dd9c3bc6ab6a9871a2369b004582debaadcba8381dc1053c0ef6da494f1b61d2ef20d75201c2012c0c29853867

C:\Users\Admin\AppData\Local\Temp\tmp1621.tmp

MD5 0479d5f304ef2d7e3c15fb24a99f88c1
SHA1 8edbb1450a656fac5f5e96779ffe440ee8c1aec9
SHA256 112557c2b2d0c669a3b115129dc32f005341e965330fa8f2ad3e5de1926594bc
SHA512 537e8d87e5cd975f0e69bb145f81d6e9d7b0d82eed143ac351304ea38577137386a51fdb7357ec6d641eb04ff5f51e249bba2db8a4b5bf2934d561394a4a3f15

memory/2968-10-0x0000000074A80000-0x000000007502B000-memory.dmp