Malware Analysis Report

2024-10-19 07:12

Sample ID 240504-qpfcvafb4y
Target 12ee889f3a4da0ad4431f67b30b8279e_JaffaCakes118
SHA256 ea721b83c12fd31e7df6bbf8d1516c663046cc809e6fa2672b27b3b6c113bf23
Tags
nanocore evasion keylogger persistence spyware stealer trojan
score
10/10

Table of Contents

Analysis Overview

MITRE ATT&CK

Enterprise Matrix V15

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

ea721b83c12fd31e7df6bbf8d1516c663046cc809e6fa2672b27b3b6c113bf23

Threat Level: Known bad

The file 12ee889f3a4da0ad4431f67b30b8279e_JaffaCakes118 was found to be: Known bad.

Malicious Activity Summary

nanocore evasion keylogger persistence spyware stealer trojan

NanoCore

Nanocore family

Adds Run key to start application

Checks whether UAC is enabled

Drops file in Program Files directory

Unsigned PE

Suspicious behavior: EnumeratesProcesses

Suspicious behavior: GetForegroundWindowSpam

Creates scheduled task(s)

Suspicious use of AdjustPrivilegeToken

Suspicious use of WriteProcessMemory

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-05-04 13:25

Signatures

Nanocore family

nanocore

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-05-04 13:25

Reported

2024-05-04 13:28

Platform

win7-20240221-en

Max time kernel

146s

Max time network

147s

Command Line

"C:\Users\Admin\AppData\Local\Temp\12ee889f3a4da0ad4431f67b30b8279e_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\12ee889f3a4da0ad4431f67b30b8279e_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\12ee889f3a4da0ad4431f67b30b8279e_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\12ee889f3a4da0ad4431f67b30b8279e_JaffaCakes118.exe N/A
File opened for modification C:\Program Files (x86)\DHCP Host\dhcphost.exe C:\Users\Admin\AppData\Local\Temp\12ee889f3a4da0ad4431f67b30b8279e_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: GetForegroundWindowSpam

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\12ee889f3a4da0ad4431f67b30b8279e_JaffaCakes118.exe N/A

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Local\Temp\12ee889f3a4da0ad4431f67b30b8279e_JaffaCakes118.exe N/A
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Local\Temp\12ee889f3a4da0ad4431f67b30b8279e_JaffaCakes118.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\12ee889f3a4da0ad4431f67b30b8279e_JaffaCakes118.exe

"C:\Users\Admin\AppData\Local\Temp\12ee889f3a4da0ad4431f67b30b8279e_JaffaCakes118.exe"

C:\Windows\SysWOW64\schtasks.exe

"schtasks.exe" /create /f /tn "DHCP Host" /xml "C:\Users\Admin\AppData\Local\Temp\tmp1390.tmp"

C:\Windows\SysWOW64\schtasks.exe

"schtasks.exe" /create /f /tn "DHCP Host Task" /xml "C:\Users\Admin\AppData\Local\Temp\tmp142D.tmp"

Network

Country Destination Domain Proto
US 185.145.45.223:1199 tcp
US 185.145.45.223:1199 tcp
US 185.145.45.223:1199 tcp
N/A 127.0.0.1:1199 tcp
N/A 127.0.0.1:1199 tcp
N/A 127.0.0.1:1199 tcp
US 185.145.45.223:1199 tcp
US 185.145.45.223:1199 tcp
US 185.145.45.223:1199 tcp
N/A 127.0.0.1:1199 tcp
N/A 127.0.0.1:1199 tcp
N/A 127.0.0.1:1199 tcp
US 185.145.45.223:1199 tcp
US 185.145.45.223:1199 tcp

Files

memory/1720-0-0x0000000074941000-0x0000000074942000-memory.dmp

memory/1720-1-0x0000000074940000-0x0000000074EEB000-memory.dmp

memory/1720-2-0x0000000074940000-0x0000000074EEB000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\tmp1390.tmp

MD5 9c0b1c86f7452298c4d40f7771a2bd8b
SHA1 03c8404cd9944a0aff1c255e63924e0cec115615
SHA256 227cf9e39da3e83d16e01688a6fd8fdbc6a94f96910107feb876bb3da2bd1641
SHA512 4e50cc8491911a278cbe734ddb01411ac951c30c68bfcdf4bae712b0ea2ce707416e403b55f8127cf64e79ed347be873666fd6b4a171ff1eb8b213ed58f1e945

C:\Users\Admin\AppData\Local\Temp\tmp142D.tmp

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

memory/1720-10-0x0000000074940000-0x0000000074EEB000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-05-04 13:25

Reported

2024-05-04 13:28

Platform

win10v2004-20240419-en

Max time kernel

136s

Max time network

144s

Command Line

"C:\Users\Admin\AppData\Local\Temp\12ee889f3a4da0ad4431f67b30b8279e_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\12ee889f3a4da0ad4431f67b30b8279e_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\12ee889f3a4da0ad4431f67b30b8279e_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\12ee889f3a4da0ad4431f67b30b8279e_JaffaCakes118.exe N/A
File opened for modification C:\Program Files (x86)\DHCP Host\dhcphost.exe C:\Users\Admin\AppData\Local\Temp\12ee889f3a4da0ad4431f67b30b8279e_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: GetForegroundWindowSpam

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\12ee889f3a4da0ad4431f67b30b8279e_JaffaCakes118.exe N/A

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Local\Temp\12ee889f3a4da0ad4431f67b30b8279e_JaffaCakes118.exe N/A
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Local\Temp\12ee889f3a4da0ad4431f67b30b8279e_JaffaCakes118.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\12ee889f3a4da0ad4431f67b30b8279e_JaffaCakes118.exe

"C:\Users\Admin\AppData\Local\Temp\12ee889f3a4da0ad4431f67b30b8279e_JaffaCakes118.exe"

C:\Windows\SysWOW64\schtasks.exe

"schtasks.exe" /create /f /tn "DHCP Host" /xml "C:\Users\Admin\AppData\Local\Temp\tmp3587.tmp"

C:\Windows\SysWOW64\schtasks.exe

"schtasks.exe" /create /f /tn "DHCP Host Task" /xml "C:\Users\Admin\AppData\Local\Temp\tmp35E6.tmp"

Network

Country Destination Domain Proto
US 8.8.8.8:53 149.220.183.52.in-addr.arpa udp
US 185.145.45.223:1199 tcp
US 8.8.8.8:53 79.190.18.2.in-addr.arpa udp
US 8.8.8.8:53 g.bing.com udp
US 204.79.197.237:443 g.bing.com tcp
US 8.8.8.8:53 72.32.126.40.in-addr.arpa udp
US 8.8.8.8:53 237.197.79.204.in-addr.arpa udp
NL 23.62.61.113:443 www.bing.com tcp
US 8.8.8.8:53 113.61.62.23.in-addr.arpa udp
US 8.8.8.8:53 133.211.185.52.in-addr.arpa udp
US 8.8.8.8:53 228.249.119.40.in-addr.arpa udp
US 185.145.45.223:1199 tcp
US 8.8.8.8:53 183.59.114.20.in-addr.arpa udp
US 8.8.8.8:53 56.126.166.20.in-addr.arpa udp
US 8.8.8.8:53 172.210.232.199.in-addr.arpa udp
US 185.145.45.223:1199 tcp
N/A 127.0.0.1:1199 tcp
N/A 127.0.0.1:1199 tcp
US 8.8.8.8:53 42.140.123.92.in-addr.arpa udp
N/A 127.0.0.1:1199 tcp
US 185.145.45.223:1199 tcp
US 8.8.8.8:53 49.15.97.104.in-addr.arpa udp
US 185.145.45.223:1199 tcp
US 8.8.8.8:53 11.227.111.52.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 8.8.8.8:53 43.58.199.20.in-addr.arpa udp
US 185.145.45.223:1199 tcp
N/A 127.0.0.1:1199 tcp
N/A 127.0.0.1:1199 tcp
N/A 127.0.0.1:1199 tcp
US 185.145.45.223:1199 tcp

Files

memory/3056-0-0x0000000074A82000-0x0000000074A83000-memory.dmp

memory/3056-1-0x0000000074A80000-0x0000000075031000-memory.dmp

memory/3056-2-0x0000000074A80000-0x0000000075031000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\tmp3587.tmp

MD5 9c0b1c86f7452298c4d40f7771a2bd8b
SHA1 03c8404cd9944a0aff1c255e63924e0cec115615
SHA256 227cf9e39da3e83d16e01688a6fd8fdbc6a94f96910107feb876bb3da2bd1641
SHA512 4e50cc8491911a278cbe734ddb01411ac951c30c68bfcdf4bae712b0ea2ce707416e403b55f8127cf64e79ed347be873666fd6b4a171ff1eb8b213ed58f1e945

C:\Users\Admin\AppData\Local\Temp\tmp35E6.tmp

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

memory/3056-10-0x0000000074A80000-0x0000000075031000-memory.dmp

memory/3056-11-0x0000000074A82000-0x0000000074A83000-memory.dmp

memory/3056-12-0x0000000074A80000-0x0000000075031000-memory.dmp

memory/3056-13-0x0000000074A80000-0x0000000075031000-memory.dmp

memory/3056-14-0x0000000074A80000-0x0000000075031000-memory.dmp