Malware Analysis Report

2024-11-16 10:54

Sample ID 240614-b3fs7szgkd
Target a79365237677bd75bc614ba28dedeaa9_JaffaCakes118
SHA256 20e66dd7361b49e34f97954f18244b01db7299c9e3232932c2b8320ec00fd641
Tags
evasion
score
9/10

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
9/10

SHA256

20e66dd7361b49e34f97954f18244b01db7299c9e3232932c2b8320ec00fd641

Threat Level: Likely malicious

The file a79365237677bd75bc614ba28dedeaa9_JaffaCakes118 was found to be: Likely malicious.

Malicious Activity Summary

evasion

Identifies VirtualBox via ACPI registry values (likely anti-VM)

Executes dropped EXE

Checks computer location settings

Drops desktop.ini file(s)

Drops file in Windows directory

Unsigned PE

Enumerates physical storage devices

Enumerates system info in registry

Modifies system certificate store

Suspicious use of WriteProcessMemory

Suspicious use of AdjustPrivilegeToken

Suspicious use of SetWindowsHookEx

Suspicious behavior: EnumeratesProcesses

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-06-14 01:39

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-06-14 01:39

Reported

2024-06-14 01:42

Platform

win7-20231129-en

Max time kernel

118s

Max time network

119s

Command Line

"C:\Users\Admin\AppData\Local\Temp\a79365237677bd75bc614ba28dedeaa9_JaffaCakes118.exe"

Signatures

N/A

Processes

C:\Users\Admin\AppData\Local\Temp\a79365237677bd75bc614ba28dedeaa9_JaffaCakes118.exe

"C:\Users\Admin\AppData\Local\Temp\a79365237677bd75bc614ba28dedeaa9_JaffaCakes118.exe"

Network

N/A

Files

N/A

Analysis: behavioral2

Detonation Overview

Submitted

2024-06-14 01:39

Reported

2024-06-14 01:42

Platform

win10v2004-20240611-en

Max time kernel

91s

Max time network

93s

Command Line

"C:\Users\Admin\AppData\Local\Temp\a79365237677bd75bc614ba28dedeaa9_JaffaCakes118.exe"

Signatures

Identifies VirtualBox via ACPI registry values (likely anti-VM)

evasion
Description Indicator Process Target
Key opened \REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__ C:\Users\Admin\AppData\Local\Temp\a79365237677bd75bc614ba28dedeaa9_JaffaCakes118.exe N/A

Checks computer location settings

Description Indicator Process Target
Key value queried \REGISTRY\USER\S-1-5-21-3169499791-3545231813-3156325206-1000\Control Panel\International\Geo\Nation C:\Users\Admin\AppData\Local\Temp\a79365237677bd75bc614ba28dedeaa9_JaffaCakes118.exe N/A

Executes dropped EXE

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\n6781\s6781.exe N/A

Drops desktop.ini file(s)

Description Indicator Process Target
File created C:\Windows\assembly\Desktop.ini C:\Users\Admin\AppData\Local\Temp\n6781\s6781.exe N/A
File opened for modification C:\Windows\assembly\Desktop.ini C:\Users\Admin\AppData\Local\Temp\n6781\s6781.exe N/A

Drops file in Windows directory

Description Indicator Process Target
File created C:\Windows\assembly\Desktop.ini C:\Users\Admin\AppData\Local\Temp\n6781\s6781.exe N/A
File opened for modification C:\Windows\assembly\Desktop.ini C:\Users\Admin\AppData\Local\Temp\n6781\s6781.exe N/A
File opened for modification C:\Windows\assembly C:\Users\Admin\AppData\Local\Temp\n6781\s6781.exe N/A

Enumerates physical storage devices

Enumerates system info in registry

Description Indicator Process Target
Key opened \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS C:\Users\Admin\AppData\Local\Temp\a79365237677bd75bc614ba28dedeaa9_JaffaCakes118.exe N/A
Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemManufacturer C:\Users\Admin\AppData\Local\Temp\a79365237677bd75bc614ba28dedeaa9_JaffaCakes118.exe N/A

Modifies system certificate store

evasion spyware trojan
Description Indicator Process Target
Key created \REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\AuthRoot\Certificates\91C6D6EE3E8AC86384E548C299295C756C817B81 C:\Users\Admin\AppData\Local\Temp\n6781\s6781.exe N/A
Set value (data) \REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\AuthRoot\Certificates\91C6D6EE3E8AC86384E548C299295C756C817B81\Blob = 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 C:\Users\Admin\AppData\Local\Temp\n6781\s6781.exe N/A
Set value (data) \REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\AuthRoot\Certificates\91C6D6EE3E8AC86384E548C299295C756C817B81\Blob = 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 C:\Users\Admin\AppData\Local\Temp\n6781\s6781.exe N/A

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Local\Temp\n6781\s6781.exe N/A

Suspicious use of SetWindowsHookEx

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\n6781\s6781.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\n6781\s6781.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\a79365237677bd75bc614ba28dedeaa9_JaffaCakes118.exe

"C:\Users\Admin\AppData\Local\Temp\a79365237677bd75bc614ba28dedeaa9_JaffaCakes118.exe"

C:\Users\Admin\AppData\Local\Temp\n6781\s6781.exe

"C:\Users\Admin\AppData\Local\Temp\n6781\s6781.exe" a29e4050d07c5f12d0f1935ddRuBw7UMLQBtiDLOmg6Mn8ZowmONLNKOR7xUBcbKKpjsCzNhBvXxqz6jqIQmIYS83HsiRkTejIkYwr12nk5BK5lNVkL5s188Os535EaBlO3VILtQQYr+w+xXljRkZ4a6JdNVfVJwMJ+Kt26k35qVFugIpWdz55gk/TEBpfrZ /v "C:\Users\Admin\AppData\Local\Temp\a79365237677bd75bc614ba28dedeaa9_JaffaCakes118.exe"

Network

Country Destination Domain Proto
US 8.8.8.8:53 ocsp.thawte.com udp
US 152.199.19.74:80 ocsp.thawte.com tcp
US 8.8.8.8:53 crl.thawte.com udp
SE 192.229.221.95:80 crl.thawte.com tcp
US 8.8.8.8:53 8.8.8.8.in-addr.arpa udp
US 8.8.8.8:53 89.43.201.23.in-addr.arpa udp
US 8.8.8.8:53 74.19.199.152.in-addr.arpa udp
US 8.8.8.8:53 th.symcd.com udp
US 152.199.19.74:80 th.symcd.com tcp
US 8.8.8.8:53 71.159.190.20.in-addr.arpa udp
US 8.8.8.8:53 43.58.199.20.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 8.8.8.8:53 237.197.79.204.in-addr.arpa udp
NL 23.62.61.97:443 www.bing.com tcp
US 8.8.8.8:53 97.61.62.23.in-addr.arpa udp
US 8.8.8.8:53 d0543.northstar.api.socdn.com udp
US 13.248.148.254:80 d0543.northstar.api.socdn.com tcp
US 8.8.8.8:53 254.148.248.13.in-addr.arpa udp
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 8.8.8.8:53 172.210.232.199.in-addr.arpa udp
US 8.8.8.8:53 21.236.111.52.in-addr.arpa udp

Files

C:\Users\Admin\AppData\Local\Temp\n6781\s6781.exe

MD5 d438749bcfe5bcdf1d59cbbb82341315
SHA1 2f4176c631e0190f35eb2963a4f8ad692fdcd6b7
SHA256 0aa566ada2feeb1714acd636da309edc6c3a9b0b8873d97942b55e053e55dd42
SHA512 f6ea2cf132c6564d685a6386705f2ff9b3912697f70d3e97e1754084c6c589141f3f72d6d82eeb6cc677a331325ab486389b1e3a202b7b21149499e8c020c67e

memory/3340-12-0x00007FF81C135000-0x00007FF81C136000-memory.dmp

memory/3340-13-0x00007FF81BE80000-0x00007FF81C821000-memory.dmp

memory/3340-27-0x000000001BDA0000-0x000000001BDB0000-memory.dmp

memory/3340-30-0x000000001C4D0000-0x000000001C99E000-memory.dmp

memory/3340-31-0x000000001CA40000-0x000000001CADC000-memory.dmp

memory/3340-32-0x00007FF81BE80000-0x00007FF81C821000-memory.dmp

memory/3340-33-0x000000001CC30000-0x000000001CC92000-memory.dmp

memory/3340-34-0x00007FF81BE80000-0x00007FF81C821000-memory.dmp

memory/3340-35-0x00007FF81BE80000-0x00007FF81C821000-memory.dmp

memory/3340-36-0x000000001BDC0000-0x000000001BDC8000-memory.dmp

memory/3340-37-0x00007FF81BE80000-0x00007FF81C821000-memory.dmp

memory/3340-38-0x00007FF81BE80000-0x00007FF81C821000-memory.dmp

memory/3340-39-0x00007FF81BE80000-0x00007FF81C821000-memory.dmp

memory/3340-40-0x00007FF81BE80000-0x00007FF81C821000-memory.dmp

memory/3340-41-0x0000000020080000-0x00000000201BC000-memory.dmp

memory/3340-42-0x00000000206D0000-0x0000000020BDE000-memory.dmp

memory/3340-43-0x00007FF81BE80000-0x00007FF81C821000-memory.dmp

memory/3340-44-0x00007FF81BE80000-0x00007FF81C821000-memory.dmp

memory/3340-45-0x00007FF81C135000-0x00007FF81C136000-memory.dmp

memory/3340-46-0x00007FF81BE80000-0x00007FF81C821000-memory.dmp

memory/3340-47-0x00007FF81BE80000-0x00007FF81C821000-memory.dmp

memory/3340-48-0x00007FF81BE80000-0x00007FF81C821000-memory.dmp

memory/3340-50-0x00007FF81BE80000-0x00007FF81C821000-memory.dmp