Malware Analysis Report

2025-08-05 23:04

Sample ID 240412-c73n7scg97
Target eef1b265e3aeaaeafabfe74bda31b5cf_JaffaCakes118
SHA256 c5203826395626892dba5e237dafd85fa8370264c9d150ffeee86c261930e065
Tags
themida evasion trojan
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

c5203826395626892dba5e237dafd85fa8370264c9d150ffeee86c261930e065

Threat Level: Likely malicious

The file eef1b265e3aeaaeafabfe74bda31b5cf_JaffaCakes118 was found to be: Likely malicious.

Malicious Activity Summary

themida evasion trojan

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

Themida packer

Checks BIOS information in registry

Checks whether UAC is enabled

Legitimate hosting services abused for malware hosting/C2

Suspicious use of NtSetInformationThreadHideFromDebugger

Unsigned PE

Program crash

Suspicious use of AdjustPrivilegeToken

Suspicious use of WriteProcessMemory

Suspicious behavior: EnumeratesProcesses

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-04-12 02:43

Signatures

Themida packer

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

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-04-12 02:43

Reported

2024-04-12 02:46

Platform

win7-20240220-en

Max time kernel

142s

Max time network

120s

Command Line

"C:\Users\Admin\AppData\Local\Temp\eef1b265e3aeaaeafabfe74bda31b5cf_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\eef1b265e3aeaaeafabfe74bda31b5cf_JaffaCakes118.exe N/A

Checks BIOS information in registry

Description Indicator Process Target
Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion C:\Users\Admin\AppData\Local\Temp\eef1b265e3aeaaeafabfe74bda31b5cf_JaffaCakes118.exe N/A
Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion C:\Users\Admin\AppData\Local\Temp\eef1b265e3aeaaeafabfe74bda31b5cf_JaffaCakes118.exe N/A

Themida packer

themida
Description Indicator Process Target
N/A N/A N/A N/A
N/A N/A N/A 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\eef1b265e3aeaaeafabfe74bda31b5cf_JaffaCakes118.exe N/A

Legitimate hosting services abused for malware hosting/C2

Description Indicator Process Target
N/A raw.githubusercontent.com N/A N/A
N/A raw.githubusercontent.com N/A N/A

Suspicious use of NtSetInformationThreadHideFromDebugger

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\eef1b265e3aeaaeafabfe74bda31b5cf_JaffaCakes118.exe N/A

Suspicious behavior: EnumeratesProcesses

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\eef1b265e3aeaaeafabfe74bda31b5cf_JaffaCakes118.exe N/A

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Local\Temp\eef1b265e3aeaaeafabfe74bda31b5cf_JaffaCakes118.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\eef1b265e3aeaaeafabfe74bda31b5cf_JaffaCakes118.exe

"C:\Users\Admin\AppData\Local\Temp\eef1b265e3aeaaeafabfe74bda31b5cf_JaffaCakes118.exe"

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 2240 -s 1084

Network

Country Destination Domain Proto
US 8.8.8.8:53 raw.githubusercontent.com udp
US 185.199.108.133:443 raw.githubusercontent.com tcp

Files

memory/2240-0-0x0000000001000000-0x0000000001876000-memory.dmp

memory/2240-1-0x0000000074D30000-0x0000000074E40000-memory.dmp

memory/2240-2-0x0000000074D30000-0x0000000074E40000-memory.dmp

memory/2240-3-0x0000000074D30000-0x0000000074E40000-memory.dmp

memory/2240-4-0x0000000074D30000-0x0000000074E40000-memory.dmp

memory/2240-5-0x0000000074E40000-0x0000000074E87000-memory.dmp

memory/2240-6-0x0000000074D30000-0x0000000074E40000-memory.dmp

memory/2240-8-0x0000000074D30000-0x0000000074E40000-memory.dmp

memory/2240-7-0x0000000074D30000-0x0000000074E40000-memory.dmp

memory/2240-9-0x0000000074D30000-0x0000000074E40000-memory.dmp

memory/2240-11-0x0000000074D30000-0x0000000074E40000-memory.dmp

memory/2240-10-0x0000000074D30000-0x0000000074E40000-memory.dmp

memory/2240-12-0x0000000074D30000-0x0000000074E40000-memory.dmp

memory/2240-14-0x0000000074D30000-0x0000000074E40000-memory.dmp

memory/2240-16-0x0000000074D30000-0x0000000074E40000-memory.dmp

memory/2240-17-0x0000000074D30000-0x0000000074E40000-memory.dmp

memory/2240-19-0x0000000074D30000-0x0000000074E40000-memory.dmp

memory/2240-20-0x0000000074D30000-0x0000000074E40000-memory.dmp

memory/2240-21-0x0000000074D30000-0x0000000074E40000-memory.dmp

memory/2240-22-0x0000000074D30000-0x0000000074E40000-memory.dmp

memory/2240-24-0x0000000077120000-0x0000000077122000-memory.dmp

memory/2240-23-0x0000000074D30000-0x0000000074E40000-memory.dmp

memory/2240-18-0x0000000074D30000-0x0000000074E40000-memory.dmp

memory/2240-15-0x0000000074D30000-0x0000000074E40000-memory.dmp

memory/2240-13-0x0000000074E40000-0x0000000074E87000-memory.dmp

memory/2240-25-0x0000000074130000-0x000000007481E000-memory.dmp

memory/2240-26-0x0000000001000000-0x0000000001876000-memory.dmp

memory/2240-27-0x0000000001000000-0x0000000001876000-memory.dmp

memory/2240-28-0x00000000055B0000-0x00000000055F0000-memory.dmp

memory/2240-30-0x0000000001000000-0x0000000001876000-memory.dmp

memory/2240-32-0x0000000074E40000-0x0000000074E87000-memory.dmp

memory/2240-31-0x0000000074D30000-0x0000000074E40000-memory.dmp

memory/2240-33-0x0000000074D30000-0x0000000074E40000-memory.dmp

memory/2240-34-0x0000000074D30000-0x0000000074E40000-memory.dmp

memory/2240-35-0x0000000074D30000-0x0000000074E40000-memory.dmp

memory/2240-36-0x0000000074D30000-0x0000000074E40000-memory.dmp

memory/2240-38-0x0000000074D30000-0x0000000074E40000-memory.dmp

memory/2240-37-0x0000000074D30000-0x0000000074E40000-memory.dmp

memory/2240-40-0x0000000074D30000-0x0000000074E40000-memory.dmp

memory/2240-39-0x0000000074D30000-0x0000000074E40000-memory.dmp

memory/2240-42-0x0000000074D30000-0x0000000074E40000-memory.dmp

memory/2240-43-0x0000000074D30000-0x0000000074E40000-memory.dmp

memory/2240-44-0x0000000074D30000-0x0000000074E40000-memory.dmp

memory/2240-45-0x0000000074130000-0x000000007481E000-memory.dmp

memory/2240-46-0x00000000055B0000-0x00000000055F0000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-04-12 02:43

Reported

2024-04-12 02:46

Platform

win10v2004-20240226-en

Max time kernel

93s

Max time network

127s

Command Line

"C:\Users\Admin\AppData\Local\Temp\eef1b265e3aeaaeafabfe74bda31b5cf_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\eef1b265e3aeaaeafabfe74bda31b5cf_JaffaCakes118.exe N/A

Checks BIOS information in registry

Description Indicator Process Target
Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion C:\Users\Admin\AppData\Local\Temp\eef1b265e3aeaaeafabfe74bda31b5cf_JaffaCakes118.exe N/A
Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion C:\Users\Admin\AppData\Local\Temp\eef1b265e3aeaaeafabfe74bda31b5cf_JaffaCakes118.exe N/A

Themida packer

themida
Description Indicator Process Target
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A 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\eef1b265e3aeaaeafabfe74bda31b5cf_JaffaCakes118.exe N/A

Legitimate hosting services abused for malware hosting/C2

Description Indicator Process Target
N/A raw.githubusercontent.com N/A N/A
N/A raw.githubusercontent.com N/A N/A

Suspicious use of NtSetInformationThreadHideFromDebugger

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\eef1b265e3aeaaeafabfe74bda31b5cf_JaffaCakes118.exe N/A

Suspicious behavior: EnumeratesProcesses

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\eef1b265e3aeaaeafabfe74bda31b5cf_JaffaCakes118.exe N/A

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Local\Temp\eef1b265e3aeaaeafabfe74bda31b5cf_JaffaCakes118.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\eef1b265e3aeaaeafabfe74bda31b5cf_JaffaCakes118.exe

"C:\Users\Admin\AppData\Local\Temp\eef1b265e3aeaaeafabfe74bda31b5cf_JaffaCakes118.exe"

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 1704 -ip 1704

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 1704 -s 1684

Network

Country Destination Domain Proto
US 138.91.171.81:80 tcp
US 8.8.8.8:53 raw.githubusercontent.com udp
US 185.199.108.133:443 raw.githubusercontent.com tcp
US 8.8.8.8:53 183.142.211.20.in-addr.arpa udp
US 8.8.8.8:53 172.210.232.199.in-addr.arpa udp
US 8.8.8.8:53 133.108.199.185.in-addr.arpa udp
US 8.8.8.8:53 20.160.190.20.in-addr.arpa udp
US 8.8.8.8:53 178.223.142.52.in-addr.arpa udp
US 8.8.8.8:53 133.211.185.52.in-addr.arpa udp
US 8.8.8.8:53 86.23.85.13.in-addr.arpa udp
US 8.8.8.8:53 56.126.166.20.in-addr.arpa udp
US 8.8.8.8:53 65.139.73.23.in-addr.arpa udp
US 8.8.8.8:53 159.113.53.23.in-addr.arpa udp
US 8.8.8.8:53 249.197.17.2.in-addr.arpa udp
US 8.8.8.8:53 21.236.111.52.in-addr.arpa udp

Files

memory/1704-0-0x00000000001A0000-0x0000000000A16000-memory.dmp

memory/1704-1-0x0000000076670000-0x0000000076760000-memory.dmp

memory/1704-2-0x0000000076670000-0x0000000076760000-memory.dmp

memory/1704-4-0x0000000076670000-0x0000000076760000-memory.dmp

memory/1704-6-0x0000000076670000-0x0000000076760000-memory.dmp

memory/1704-5-0x0000000076670000-0x0000000076760000-memory.dmp

memory/1704-3-0x0000000076670000-0x0000000076760000-memory.dmp

memory/1704-7-0x0000000077674000-0x0000000077676000-memory.dmp

memory/1704-8-0x00000000001A0000-0x0000000000A16000-memory.dmp

memory/1704-9-0x00000000001A0000-0x0000000000A16000-memory.dmp

memory/1704-11-0x00000000001A0000-0x0000000000A16000-memory.dmp

memory/1704-12-0x0000000076670000-0x0000000076760000-memory.dmp