Malware Analysis Report

2024-08-06 14:46

Sample ID 240617-xn68havalk
Target b98590b676fde76327a1d35fa71e3b81_JaffaCakes118
SHA256 5389ee161d9b71caa3c663af220b8514fe61eb7d07442475deb648455e0d0c6f
Tags
nanocore 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

5389ee161d9b71caa3c663af220b8514fe61eb7d07442475deb648455e0d0c6f

Threat Level: Known bad

The file b98590b676fde76327a1d35fa71e3b81_JaffaCakes118 was found to be: Known bad.

Malicious Activity Summary

nanocore keylogger persistence spyware stealer trojan

NanoCore

Adds Run key to start application

Suspicious use of SetThreadContext

Drops file in Program Files directory

Suspicious use of WriteProcessMemory

Creates scheduled task(s)

Suspicious behavior: EnumeratesProcesses

Suspicious behavior: GetForegroundWindowSpam

Suspicious use of AdjustPrivilegeToken

MITRE ATT&CK Matrix V13

Analysis: static1

Detonation Overview

Reported

2024-06-17 19:01

Signatures

N/A

Analysis: behavioral1

Detonation Overview

Submitted

2024-06-17 19:01

Reported

2024-06-17 19:03

Platform

win7-20240508-en

Max time kernel

142s

Max time network

147s

Command Line

"C:\Users\Admin\AppData\Local\Temp\b98590b676fde76327a1d35fa71e3b81_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\ARP Host = "C:\\Program Files (x86)\\ARP Host\\arphost.exe" C:\Windows\Microsoft.NET\Framework\v4.0.30319\InstallUtil.exe N/A

Suspicious use of SetThreadContext

Description Indicator Process Target
PID 2412 set thread context of 2652 N/A C:\Users\Admin\AppData\Local\Temp\b98590b676fde76327a1d35fa71e3b81_JaffaCakes118.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\InstallUtil.exe

Drops file in Program Files directory

Description Indicator Process Target
File opened for modification C:\Program Files (x86)\ARP Host\arphost.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\InstallUtil.exe N/A
File created C:\Program Files (x86)\ARP Host\arphost.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\InstallUtil.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:\Windows\Microsoft.NET\Framework\v4.0.30319\InstallUtil.exe N/A

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Local\Temp\b98590b676fde76327a1d35fa71e3b81_JaffaCakes118.exe N/A
Token: SeDebugPrivilege N/A C:\Windows\Microsoft.NET\Framework\v4.0.30319\InstallUtil.exe N/A
Token: SeDebugPrivilege N/A C:\Windows\Microsoft.NET\Framework\v4.0.30319\InstallUtil.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 2412 wrote to memory of 2652 N/A C:\Users\Admin\AppData\Local\Temp\b98590b676fde76327a1d35fa71e3b81_JaffaCakes118.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\InstallUtil.exe
PID 2412 wrote to memory of 2652 N/A C:\Users\Admin\AppData\Local\Temp\b98590b676fde76327a1d35fa71e3b81_JaffaCakes118.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\InstallUtil.exe
PID 2412 wrote to memory of 2652 N/A C:\Users\Admin\AppData\Local\Temp\b98590b676fde76327a1d35fa71e3b81_JaffaCakes118.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\InstallUtil.exe
PID 2412 wrote to memory of 2652 N/A C:\Users\Admin\AppData\Local\Temp\b98590b676fde76327a1d35fa71e3b81_JaffaCakes118.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\InstallUtil.exe
PID 2412 wrote to memory of 2652 N/A C:\Users\Admin\AppData\Local\Temp\b98590b676fde76327a1d35fa71e3b81_JaffaCakes118.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\InstallUtil.exe
PID 2412 wrote to memory of 2652 N/A C:\Users\Admin\AppData\Local\Temp\b98590b676fde76327a1d35fa71e3b81_JaffaCakes118.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\InstallUtil.exe
PID 2412 wrote to memory of 2652 N/A C:\Users\Admin\AppData\Local\Temp\b98590b676fde76327a1d35fa71e3b81_JaffaCakes118.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\InstallUtil.exe
PID 2412 wrote to memory of 2652 N/A C:\Users\Admin\AppData\Local\Temp\b98590b676fde76327a1d35fa71e3b81_JaffaCakes118.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\InstallUtil.exe
PID 2412 wrote to memory of 2652 N/A C:\Users\Admin\AppData\Local\Temp\b98590b676fde76327a1d35fa71e3b81_JaffaCakes118.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\InstallUtil.exe
PID 2412 wrote to memory of 2652 N/A C:\Users\Admin\AppData\Local\Temp\b98590b676fde76327a1d35fa71e3b81_JaffaCakes118.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\InstallUtil.exe
PID 2412 wrote to memory of 2652 N/A C:\Users\Admin\AppData\Local\Temp\b98590b676fde76327a1d35fa71e3b81_JaffaCakes118.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\InstallUtil.exe
PID 2412 wrote to memory of 2652 N/A C:\Users\Admin\AppData\Local\Temp\b98590b676fde76327a1d35fa71e3b81_JaffaCakes118.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\InstallUtil.exe
PID 2652 wrote to memory of 296 N/A C:\Windows\Microsoft.NET\Framework\v4.0.30319\InstallUtil.exe C:\Windows\SysWOW64\schtasks.exe
PID 2652 wrote to memory of 296 N/A C:\Windows\Microsoft.NET\Framework\v4.0.30319\InstallUtil.exe C:\Windows\SysWOW64\schtasks.exe
PID 2652 wrote to memory of 296 N/A C:\Windows\Microsoft.NET\Framework\v4.0.30319\InstallUtil.exe C:\Windows\SysWOW64\schtasks.exe
PID 2652 wrote to memory of 296 N/A C:\Windows\Microsoft.NET\Framework\v4.0.30319\InstallUtil.exe C:\Windows\SysWOW64\schtasks.exe
PID 2652 wrote to memory of 2824 N/A C:\Windows\Microsoft.NET\Framework\v4.0.30319\InstallUtil.exe C:\Windows\SysWOW64\schtasks.exe
PID 2652 wrote to memory of 2824 N/A C:\Windows\Microsoft.NET\Framework\v4.0.30319\InstallUtil.exe C:\Windows\SysWOW64\schtasks.exe
PID 2652 wrote to memory of 2824 N/A C:\Windows\Microsoft.NET\Framework\v4.0.30319\InstallUtil.exe C:\Windows\SysWOW64\schtasks.exe
PID 2652 wrote to memory of 2824 N/A C:\Windows\Microsoft.NET\Framework\v4.0.30319\InstallUtil.exe C:\Windows\SysWOW64\schtasks.exe

Processes

C:\Users\Admin\AppData\Local\Temp\b98590b676fde76327a1d35fa71e3b81_JaffaCakes118.exe

"C:\Users\Admin\AppData\Local\Temp\b98590b676fde76327a1d35fa71e3b81_JaffaCakes118.exe"

C:\Windows\Microsoft.NET\Framework\v4.0.30319\InstallUtil.exe

"C:\Windows\Microsoft.NET\Framework\v4.0.30319\InstallUtil.exe"

C:\Windows\SysWOW64\schtasks.exe

"schtasks.exe" /create /f /tn "ARP Host" /xml "C:\Users\Admin\AppData\Local\Temp\tmp5BB.tmp"

C:\Windows\SysWOW64\schtasks.exe

"schtasks.exe" /create /f /tn "ARP Host Task" /xml "C:\Users\Admin\AppData\Local\Temp\tmp677.tmp"

Network

Country Destination Domain Proto
US 8.8.8.8:53 mailsiro.casacam.net udp
US 8.8.8.8:53 mailsiro.casacam.net udp
US 8.8.8.8:53 mailsiro.casacam.net udp
US 8.8.8.8:53 joutd.mywire.org udp
US 8.8.8.8:53 joutd.mywire.org udp
US 8.8.8.8:53 joutd.mywire.org udp

Files

memory/2412-0-0x0000000074DFE000-0x0000000074DFF000-memory.dmp

memory/2412-1-0x00000000002D0000-0x000000000034E000-memory.dmp

memory/2412-2-0x00000000004E0000-0x00000000004F6000-memory.dmp

memory/2412-3-0x0000000074DF0000-0x00000000754DE000-memory.dmp

memory/2412-4-0x0000000074DFE000-0x0000000074DFF000-memory.dmp

memory/2412-5-0x0000000074DF0000-0x00000000754DE000-memory.dmp

memory/2652-6-0x0000000000400000-0x0000000000438000-memory.dmp

memory/2652-7-0x0000000000400000-0x0000000000438000-memory.dmp

memory/2652-8-0x0000000000400000-0x0000000000438000-memory.dmp

memory/2652-9-0x0000000000400000-0x0000000000438000-memory.dmp

memory/2652-10-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

memory/2652-12-0x0000000000400000-0x0000000000438000-memory.dmp

memory/2652-16-0x0000000000400000-0x0000000000438000-memory.dmp

memory/2652-14-0x0000000000400000-0x0000000000438000-memory.dmp

memory/2652-18-0x0000000074DF0000-0x00000000754DE000-memory.dmp

memory/2412-17-0x0000000074DF0000-0x00000000754DE000-memory.dmp

memory/2652-19-0x0000000074DF0000-0x00000000754DE000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\tmp5BB.tmp

MD5 576bbaf398045c3843d452ec83208236
SHA1 8ed5b2500ae7a40cbfa6e9018a1d1f1e70cb1374
SHA256 33c0c2d72fa383e5988ce640febc5ac6a2bd71d4ae660b99e52234952e17467b
SHA512 e7cc0ea0b351c6a8618e14f03c00e88ef83e2f169e0b4d66513f580f0a9352fbfe429e57186362b69407150d566bbdadca2f7b574fc748cc140b3249be67f96a

C:\Users\Admin\AppData\Local\Temp\tmp677.tmp

MD5 447ab194ab36cb1d20078d80e502b1b2
SHA1 a947b3b2c91d7c50bb8d39bd4fc91a0d0cc5b1c0
SHA256 8d5304b20b7d7dea223ce2738e5668054250d57bf6bed86b305b69924bd472f5
SHA512 49ddc557f7f6635627eea9bf0fa12a14b7b13edb235ed560ee0044a7f87fe27b686ff878d347d0273d92eb0b318b8c2bca85c0fbf42d586ed7d7da39eac6a327

memory/2652-27-0x0000000000440000-0x000000000044A000-memory.dmp

memory/2652-28-0x0000000000450000-0x000000000046E000-memory.dmp

memory/2652-29-0x0000000000470000-0x000000000047A000-memory.dmp

memory/2652-30-0x0000000074DF0000-0x00000000754DE000-memory.dmp

memory/2652-31-0x0000000074DF0000-0x00000000754DE000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-06-17 19:01

Reported

2024-06-17 19:03

Platform

win10v2004-20240508-en

Max time kernel

147s

Max time network

153s

Command Line

"C:\Users\Admin\AppData\Local\Temp\b98590b676fde76327a1d35fa71e3b81_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\LAN Monitor = "C:\\Program Files (x86)\\LAN Monitor\\lanmon.exe" C:\Windows\Microsoft.NET\Framework\v4.0.30319\InstallUtil.exe N/A

Suspicious use of SetThreadContext

Description Indicator Process Target
PID 4588 set thread context of 1576 N/A C:\Users\Admin\AppData\Local\Temp\b98590b676fde76327a1d35fa71e3b81_JaffaCakes118.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\InstallUtil.exe

Drops file in Program Files directory

Description Indicator Process Target
File created C:\Program Files (x86)\LAN Monitor\lanmon.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\InstallUtil.exe N/A
File opened for modification C:\Program Files (x86)\LAN Monitor\lanmon.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\InstallUtil.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:\Windows\Microsoft.NET\Framework\v4.0.30319\InstallUtil.exe N/A

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Local\Temp\b98590b676fde76327a1d35fa71e3b81_JaffaCakes118.exe N/A
Token: SeDebugPrivilege N/A C:\Windows\Microsoft.NET\Framework\v4.0.30319\InstallUtil.exe N/A
Token: SeDebugPrivilege N/A C:\Windows\Microsoft.NET\Framework\v4.0.30319\InstallUtil.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 4588 wrote to memory of 1576 N/A C:\Users\Admin\AppData\Local\Temp\b98590b676fde76327a1d35fa71e3b81_JaffaCakes118.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\InstallUtil.exe
PID 4588 wrote to memory of 1576 N/A C:\Users\Admin\AppData\Local\Temp\b98590b676fde76327a1d35fa71e3b81_JaffaCakes118.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\InstallUtil.exe
PID 4588 wrote to memory of 1576 N/A C:\Users\Admin\AppData\Local\Temp\b98590b676fde76327a1d35fa71e3b81_JaffaCakes118.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\InstallUtil.exe
PID 4588 wrote to memory of 1576 N/A C:\Users\Admin\AppData\Local\Temp\b98590b676fde76327a1d35fa71e3b81_JaffaCakes118.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\InstallUtil.exe
PID 4588 wrote to memory of 1576 N/A C:\Users\Admin\AppData\Local\Temp\b98590b676fde76327a1d35fa71e3b81_JaffaCakes118.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\InstallUtil.exe
PID 4588 wrote to memory of 1576 N/A C:\Users\Admin\AppData\Local\Temp\b98590b676fde76327a1d35fa71e3b81_JaffaCakes118.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\InstallUtil.exe
PID 4588 wrote to memory of 1576 N/A C:\Users\Admin\AppData\Local\Temp\b98590b676fde76327a1d35fa71e3b81_JaffaCakes118.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\InstallUtil.exe
PID 4588 wrote to memory of 1576 N/A C:\Users\Admin\AppData\Local\Temp\b98590b676fde76327a1d35fa71e3b81_JaffaCakes118.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\InstallUtil.exe
PID 1576 wrote to memory of 5076 N/A C:\Windows\Microsoft.NET\Framework\v4.0.30319\InstallUtil.exe C:\Windows\SysWOW64\schtasks.exe
PID 1576 wrote to memory of 5076 N/A C:\Windows\Microsoft.NET\Framework\v4.0.30319\InstallUtil.exe C:\Windows\SysWOW64\schtasks.exe
PID 1576 wrote to memory of 5076 N/A C:\Windows\Microsoft.NET\Framework\v4.0.30319\InstallUtil.exe C:\Windows\SysWOW64\schtasks.exe
PID 1576 wrote to memory of 4952 N/A C:\Windows\Microsoft.NET\Framework\v4.0.30319\InstallUtil.exe C:\Windows\SysWOW64\schtasks.exe
PID 1576 wrote to memory of 4952 N/A C:\Windows\Microsoft.NET\Framework\v4.0.30319\InstallUtil.exe C:\Windows\SysWOW64\schtasks.exe
PID 1576 wrote to memory of 4952 N/A C:\Windows\Microsoft.NET\Framework\v4.0.30319\InstallUtil.exe C:\Windows\SysWOW64\schtasks.exe

Processes

C:\Users\Admin\AppData\Local\Temp\b98590b676fde76327a1d35fa71e3b81_JaffaCakes118.exe

"C:\Users\Admin\AppData\Local\Temp\b98590b676fde76327a1d35fa71e3b81_JaffaCakes118.exe"

C:\Windows\Microsoft.NET\Framework\v4.0.30319\InstallUtil.exe

"C:\Windows\Microsoft.NET\Framework\v4.0.30319\InstallUtil.exe"

C:\Windows\SysWOW64\schtasks.exe

"schtasks.exe" /create /f /tn "LAN Monitor" /xml "C:\Users\Admin\AppData\Local\Temp\tmp59C3.tmp"

C:\Windows\SysWOW64\schtasks.exe

"schtasks.exe" /create /f /tn "LAN Monitor Task" /xml "C:\Users\Admin\AppData\Local\Temp\tmp5A13.tmp"

Network

Country Destination Domain Proto
US 8.8.8.8:53 mailsiro.casacam.net udp
US 8.8.8.8:53 mailsiro.casacam.net udp
US 8.8.8.8:53 joutd.mywire.org udp
US 8.8.8.8:53 joutd.mywire.org udp
US 8.8.8.8:53 mailsiro.casacam.net udp
US 8.8.8.8:53 mailsiro.casacam.net udp
US 8.8.8.8:53 joutd.mywire.org udp

Files

memory/4588-0-0x00000000752FE000-0x00000000752FF000-memory.dmp

memory/4588-1-0x00000000002F0000-0x000000000036E000-memory.dmp

memory/4588-2-0x0000000005270000-0x0000000005814000-memory.dmp

memory/4588-3-0x0000000002820000-0x0000000002836000-memory.dmp

memory/4588-4-0x0000000004D60000-0x0000000004DF2000-memory.dmp

memory/4588-5-0x0000000004CC0000-0x0000000004CE2000-memory.dmp

memory/4588-6-0x00000000752F0000-0x0000000075AA0000-memory.dmp

memory/4588-7-0x0000000005920000-0x0000000005964000-memory.dmp

memory/4588-8-0x00000000752FE000-0x00000000752FF000-memory.dmp

memory/4588-9-0x00000000752F0000-0x0000000075AA0000-memory.dmp

memory/4588-12-0x00000000752F0000-0x0000000075AA0000-memory.dmp

memory/1576-14-0x00000000752F0000-0x0000000075AA0000-memory.dmp

memory/1576-13-0x0000000000520000-0x0000000000558000-memory.dmp

memory/1576-15-0x0000000004B80000-0x0000000004C1C000-memory.dmp

memory/1576-17-0x00000000752F0000-0x0000000075AA0000-memory.dmp

memory/1576-16-0x0000000004B00000-0x0000000004B0A000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\tmp59C3.tmp

MD5 576bbaf398045c3843d452ec83208236
SHA1 8ed5b2500ae7a40cbfa6e9018a1d1f1e70cb1374
SHA256 33c0c2d72fa383e5988ce640febc5ac6a2bd71d4ae660b99e52234952e17467b
SHA512 e7cc0ea0b351c6a8618e14f03c00e88ef83e2f169e0b4d66513f580f0a9352fbfe429e57186362b69407150d566bbdadca2f7b574fc748cc140b3249be67f96a

C:\Users\Admin\AppData\Local\Temp\tmp5A13.tmp

MD5 ecf141ec69adbb2a5c3dd5c85cd0ec39
SHA1 0ad224632fa58d103142c05c44a142f3d7208291
SHA256 64d8cfa0b25afee269839cd5fc0b66e5643bc318e5f4d3ce1b9dba2456c83316
SHA512 4821b062d6672f3ed07833cfd7ab9abb533850b451b632d781fbfad8238fcd5ac52855f1f239547ae2d1c1477959f022430302a75cfd3c19a8473af72a1ef201

memory/1576-25-0x0000000005060000-0x000000000506A000-memory.dmp

memory/1576-26-0x0000000005070000-0x000000000508E000-memory.dmp

memory/1576-27-0x0000000005BC0000-0x0000000005BCA000-memory.dmp

memory/1576-28-0x00000000752F0000-0x0000000075AA0000-memory.dmp

memory/1576-29-0x00000000752F0000-0x0000000075AA0000-memory.dmp