Malware Analysis Report

2025-06-15 23:35

Sample ID 241031-rqhd9s1ncn
Target 834440250afb792fdfce78de4da1feea_JaffaCakes118
SHA256 e3772807cb8a20f94b491000e85db091cfdb5e4b61e079267ddb06e5fc450481
Tags
bootkit discovery evasion persistence
score
7/10

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
7/10

SHA256

e3772807cb8a20f94b491000e85db091cfdb5e4b61e079267ddb06e5fc450481

Threat Level: Shows suspicious behavior

The file 834440250afb792fdfce78de4da1feea_JaffaCakes118 was found to be: Shows suspicious behavior.

Malicious Activity Summary

bootkit discovery evasion persistence

Identifies Wine through registry keys

Executes dropped EXE

Adds Run key to start application

Enumerates connected drives

Writes to the Master Boot Record (MBR)

Suspicious use of NtSetInformationThreadHideFromDebugger

System Location Discovery: System Language Discovery

Unsigned PE

Suspicious behavior: EnumeratesProcesses

Suspicious use of WriteProcessMemory

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-10-31 14:23

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-10-31 14:23

Reported

2024-10-31 14:32

Platform

win7-20240903-en

Max time kernel

140s

Max time network

122s

Command Line

"C:\Users\Admin\AppData\Local\Temp\834440250afb792fdfce78de4da1feea_JaffaCakes118.exe"

Signatures

Executes dropped EXE

Description Indicator Process Target
N/A N/A F:\msdownld.tmp\IXP000.TMP\1.exe N/A

Identifies Wine through registry keys

evasion
Description Indicator Process Target
Key opened \REGISTRY\USER\S-1-5-21-4177215427-74451935-3209572229-1000\Software\Wine F:\msdownld.tmp\IXP000.TMP\1.exe N/A

Adds Run key to start application

persistence
Description Indicator Process Target
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\RunOnce\wextract_cleanup0 = "rundll32.exe C:\\Windows\\system32\\advpack.dll,DelNodeRunDLL32 \"F:\\msdownld.tmp\\IXP000.TMP\\\"" C:\Users\Admin\AppData\Local\Temp\834440250afb792fdfce78de4da1feea_JaffaCakes118.exe N/A

Writes to the Master Boot Record (MBR)

bootkit persistence
Description Indicator Process Target
File opened for modification \??\PhysicalDrive0 F:\msdownld.tmp\IXP000.TMP\1.exe N/A

Suspicious use of NtSetInformationThreadHideFromDebugger

Description Indicator Process Target
N/A N/A F:\msdownld.tmp\IXP000.TMP\1.exe N/A

System Location Discovery: System Language Discovery

discovery
Description Indicator Process Target
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Users\Admin\AppData\Local\Temp\834440250afb792fdfce78de4da1feea_JaffaCakes118.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language F:\msdownld.tmp\IXP000.TMP\1.exe N/A

Suspicious behavior: EnumeratesProcesses

Description Indicator Process Target
N/A N/A F:\msdownld.tmp\IXP000.TMP\1.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\834440250afb792fdfce78de4da1feea_JaffaCakes118.exe

"C:\Users\Admin\AppData\Local\Temp\834440250afb792fdfce78de4da1feea_JaffaCakes118.exe"

F:\msdownld.tmp\IXP000.TMP\1.exe

F:\msdownld.tmp\IXP000.TMP\1.exe

Network

N/A

Files

F:\msdownld.tmp\IXP000.TMP\1.exe

MD5 01bdae497b2ba405a9aa65b279cea1eb
SHA1 bffd0556f6fecadc29738189005026ac3fcbe39b
SHA256 17a4f97930492697ed75a8e662ea9c6203552fe0e218ae51a0979652506d576e
SHA512 b8f0b9db2ef66cb8fbc4a950799e660c4074ea1180782aa4872323f7a3f7f0e866a0696a4fad2eae94d4b7721268a7e39fabf0f930ed29e0af7725b4f8f52cdc

memory/2076-8-0x0000000002D00000-0x0000000003197000-memory.dmp

memory/2420-10-0x0000000000400000-0x0000000000897000-memory.dmp

memory/2076-11-0x0000000002D00000-0x0000000003197000-memory.dmp

memory/2420-13-0x0000000001A80000-0x0000000001F17000-memory.dmp

memory/2420-14-0x0000000000401000-0x00000000004B2000-memory.dmp

memory/2420-15-0x0000000000400000-0x0000000000897000-memory.dmp

memory/2420-16-0x0000000000400000-0x0000000000897000-memory.dmp

memory/2420-17-0x0000000000400000-0x0000000000897000-memory.dmp

memory/2420-18-0x0000000001A80000-0x0000000001F17000-memory.dmp

memory/2420-20-0x0000000000401000-0x00000000004B2000-memory.dmp

memory/2420-19-0x0000000000400000-0x0000000000897000-memory.dmp

memory/2420-21-0x0000000000400000-0x0000000000897000-memory.dmp

memory/2420-22-0x0000000000400000-0x0000000000897000-memory.dmp

memory/2420-23-0x0000000000400000-0x0000000000897000-memory.dmp

memory/2420-24-0x0000000000400000-0x0000000000897000-memory.dmp

memory/2420-25-0x0000000000400000-0x0000000000897000-memory.dmp

memory/2420-26-0x0000000000400000-0x0000000000897000-memory.dmp

memory/2420-27-0x0000000000400000-0x0000000000897000-memory.dmp

memory/2420-28-0x0000000000400000-0x0000000000897000-memory.dmp

memory/2420-29-0x0000000000400000-0x0000000000897000-memory.dmp

memory/2420-30-0x0000000000400000-0x0000000000897000-memory.dmp

memory/2420-31-0x0000000000400000-0x0000000000897000-memory.dmp

memory/2420-32-0x0000000000400000-0x0000000000897000-memory.dmp

memory/2420-33-0x0000000000400000-0x0000000000897000-memory.dmp

memory/2420-34-0x0000000000400000-0x0000000000897000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-10-31 14:23

Reported

2024-10-31 14:32

Platform

win10v2004-20241007-en

Max time kernel

139s

Max time network

138s

Command Line

"C:\Users\Admin\AppData\Local\Temp\834440250afb792fdfce78de4da1feea_JaffaCakes118.exe"

Signatures

Executes dropped EXE

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\1.exe N/A

Identifies Wine through registry keys

evasion
Description Indicator Process Target
Key opened \REGISTRY\USER\S-1-5-21-4089630652-1596403869-279772308-1000\Software\Wine C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\1.exe N/A

Adds Run key to start application

persistence
Description Indicator Process Target
Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\RunOnce\wextract_cleanup0 = "rundll32.exe C:\\Windows\\system32\\advpack.dll,DelNodeRunDLL32 \"C:\\Users\\Admin\\AppData\\Local\\Temp\\IXP000.TMP\\\"" C:\Users\Admin\AppData\Local\Temp\834440250afb792fdfce78de4da1feea_JaffaCakes118.exe N/A

System Location Discovery: System Language Discovery

discovery
Description Indicator Process Target
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Users\Admin\AppData\Local\Temp\834440250afb792fdfce78de4da1feea_JaffaCakes118.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\1.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\834440250afb792fdfce78de4da1feea_JaffaCakes118.exe

"C:\Users\Admin\AppData\Local\Temp\834440250afb792fdfce78de4da1feea_JaffaCakes118.exe"

C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\1.exe

C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\1.exe

Network

Country Destination Domain Proto
US 8.8.8.8:53 104.219.191.52.in-addr.arpa udp
US 8.8.8.8:53 g.bing.com udp
US 150.171.27.10:443 g.bing.com tcp
US 8.8.8.8:53 102.209.201.84.in-addr.arpa udp
US 8.8.8.8:53 0.159.190.20.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 10.27.171.150.in-addr.arpa udp
US 8.8.8.8:53 55.36.223.20.in-addr.arpa udp
US 8.8.8.8:53 212.20.149.52.in-addr.arpa udp
US 8.8.8.8:53 15.164.165.52.in-addr.arpa udp
US 8.8.8.8:53 0.205.248.87.in-addr.arpa udp
US 8.8.8.8:53 73.144.22.2.in-addr.arpa udp
US 8.8.8.8:53 48.229.111.52.in-addr.arpa udp
US 8.8.8.8:53 43.58.199.20.in-addr.arpa udp
US 8.8.8.8:53 tse1.mm.bing.net udp
US 150.171.27.10:443 tse1.mm.bing.net tcp
US 150.171.27.10:443 tse1.mm.bing.net tcp
US 150.171.27.10:443 tse1.mm.bing.net tcp
US 150.171.27.10:443 tse1.mm.bing.net tcp
US 150.171.27.10:443 tse1.mm.bing.net tcp

Files

C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\1.exe

MD5 01bdae497b2ba405a9aa65b279cea1eb
SHA1 bffd0556f6fecadc29738189005026ac3fcbe39b
SHA256 17a4f97930492697ed75a8e662ea9c6203552fe0e218ae51a0979652506d576e
SHA512 b8f0b9db2ef66cb8fbc4a950799e660c4074ea1180782aa4872323f7a3f7f0e866a0696a4fad2eae94d4b7721268a7e39fabf0f930ed29e0af7725b4f8f52cdc

memory/2552-7-0x0000000000400000-0x0000000000897000-memory.dmp

memory/2552-8-0x0000000000400000-0x0000000000897000-memory.dmp