Malware Analysis Report

2024-09-09 19:14

Sample ID 240613-sxm4rsvbje
Target a643f791249175da030797eae5f8b3ca_JaffaCakes118
SHA256 7018d170611c308eb9e33ed57a34c792333c6605a7c2fe4a65691092af09ff49
Tags
evasion
score
9/10

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
9/10

SHA256

7018d170611c308eb9e33ed57a34c792333c6605a7c2fe4a65691092af09ff49

Threat Level: Likely malicious

The file a643f791249175da030797eae5f8b3ca_JaffaCakes118 was found to be: Likely malicious.

Malicious Activity Summary

evasion

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

Checks computer location settings

Executes dropped EXE

Loads dropped DLL

Drops desktop.ini file(s)

Drops file in Windows directory

Unsigned PE

Enumerates physical storage devices

Program crash

Suspicious use of SetWindowsHookEx

Suspicious use of WriteProcessMemory

Suspicious behavior: EnumeratesProcesses

Modifies system certificate store

Suspicious use of AdjustPrivilegeToken

Enumerates system info in registry

MITRE ATT&CK Matrix V13

Analysis: static1

Detonation Overview

Reported

2024-06-13 15:30

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-06-13 15:30

Reported

2024-06-13 15:32

Platform

win7-20240611-en

Max time kernel

118s

Max time network

119s

Command Line

"C:\Users\Admin\AppData\Local\Temp\a643f791249175da030797eae5f8b3ca_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\a643f791249175da030797eae5f8b3ca_JaffaCakes118.exe N/A

Executes dropped EXE

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\n8418\s8418.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\a643f791249175da030797eae5f8b3ca_JaffaCakes118.exe N/A
Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemManufacturer C:\Users\Admin\AppData\Local\Temp\a643f791249175da030797eae5f8b3ca_JaffaCakes118.exe N/A

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Local\Temp\n8418\s8418.exe N/A

Suspicious use of SetWindowsHookEx

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\n8418\s8418.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\n8418\s8418.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\a643f791249175da030797eae5f8b3ca_JaffaCakes118.exe

"C:\Users\Admin\AppData\Local\Temp\a643f791249175da030797eae5f8b3ca_JaffaCakes118.exe"

C:\Users\Admin\AppData\Local\Temp\n8418\s8418.exe

"C:\Users\Admin\AppData\Local\Temp\n8418\s8418.exe" ins.exe /e 13029947 /u 8765b7a1-1326-11e4-8a58-80c16e6f498c /h ef64a6.api.socdn.com /v "C:\Users\Admin\AppData\Local\Temp\a643f791249175da030797eae5f8b3ca_JaffaCakes118.exe"

Network

Country Destination Domain Proto
US 8.8.8.8:53 crl.globalsign.net udp
US 104.18.20.226:80 crl.globalsign.net tcp
US 8.8.8.8:53 ef64a6.api.socdn.com udp
US 13.248.148.254:80 ef64a6.api.socdn.com tcp

Files

\Users\Admin\AppData\Local\Temp\n8418\s8418.exe

MD5 0e88682aeba4d7ef923b316f97f990ba
SHA1 a54a0df52206ab79c0ad19be7402ab8564b7ad8c
SHA256 6be0358b2703e0e317ec4ddefbc320014b3c2a14eb1d959b0ed399586fd2bba1
SHA512 c0755f0b6fd5d01872464c1fa4b3d11c4ad4fd84f355bc9a9938bc5057373c18753915eeaabd31eb1db5cd95399a5b5083de31f11b55adba58316082421607c6

memory/1940-17-0x000007FEF5ACE000-0x000007FEF5ACF000-memory.dmp

memory/1940-18-0x000007FEF5810000-0x000007FEF61AD000-memory.dmp

memory/1940-34-0x00000000001D0000-0x00000000001DE000-memory.dmp

memory/1940-35-0x000007FEF5810000-0x000007FEF61AD000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-06-13 15:30

Reported

2024-06-13 15:32

Platform

win10v2004-20240508-en

Max time kernel

143s

Max time network

149s

Command Line

"C:\Users\Admin\AppData\Local\Temp\a643f791249175da030797eae5f8b3ca_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\a643f791249175da030797eae5f8b3ca_JaffaCakes118.exe N/A

Checks computer location settings

Description Indicator Process Target
Key value queried \REGISTRY\USER\S-1-5-21-1181767204-2009306918-3718769404-1000\Control Panel\International\Geo\Nation C:\Users\Admin\AppData\Local\Temp\a643f791249175da030797eae5f8b3ca_JaffaCakes118.exe N/A

Executes dropped EXE

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\n8421\s8421.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\n8421\s8421.exe N/A
File opened for modification C:\Windows\assembly\Desktop.ini C:\Users\Admin\AppData\Local\Temp\n8421\s8421.exe N/A

Drops file in Windows directory

Description Indicator Process Target
File opened for modification C:\Windows\assembly C:\Users\Admin\AppData\Local\Temp\n8421\s8421.exe N/A
File created C:\Windows\assembly\Desktop.ini C:\Users\Admin\AppData\Local\Temp\n8421\s8421.exe N/A
File opened for modification C:\Windows\assembly\Desktop.ini C:\Users\Admin\AppData\Local\Temp\n8421\s8421.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\a643f791249175da030797eae5f8b3ca_JaffaCakes118.exe N/A
Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemManufacturer C:\Users\Admin\AppData\Local\Temp\a643f791249175da030797eae5f8b3ca_JaffaCakes118.exe N/A

Modifies system certificate store

evasion spyware trojan
Description Indicator Process Target
Key created \REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\AuthRoot\Certificates\B1BC968BD4F49D622AA89A81F2150152A41D829C C:\Users\Admin\AppData\Local\Temp\n8421\s8421.exe N/A
Set value (data) \REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\AuthRoot\Certificates\B1BC968BD4F49D622AA89A81F2150152A41D829C\Blob = 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 C:\Users\Admin\AppData\Local\Temp\n8421\s8421.exe N/A
Set value (data) \REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\AuthRoot\Certificates\B1BC968BD4F49D622AA89A81F2150152A41D829C\Blob = 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 C:\Users\Admin\AppData\Local\Temp\n8421\s8421.exe N/A

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Local\Temp\n8421\s8421.exe N/A

Suspicious use of SetWindowsHookEx

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\n8421\s8421.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\n8421\s8421.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\a643f791249175da030797eae5f8b3ca_JaffaCakes118.exe

"C:\Users\Admin\AppData\Local\Temp\a643f791249175da030797eae5f8b3ca_JaffaCakes118.exe"

C:\Users\Admin\AppData\Local\Temp\n8421\s8421.exe

"C:\Users\Admin\AppData\Local\Temp\n8421\s8421.exe" ins.exe /e 13029947 /u 8765b7a1-1326-11e4-8a58-80c16e6f498c /h ef64a6.api.socdn.com /v "C:\Users\Admin\AppData\Local\Temp\a643f791249175da030797eae5f8b3ca_JaffaCakes118.exe"

C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe

"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --no-appcompat-clear --field-trial-handle=3852,i,1067197275908310731,12785105794523264014,262144 --variations-seed-version --mojo-platform-channel-handle=4236 /prefetch:8

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 444 -p 3988 -ip 3988

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 3988 -s 3800

Network

Country Destination Domain Proto
US 8.8.8.8:53 8.8.8.8.in-addr.arpa udp
US 8.8.8.8:53 crl.globalsign.net udp
US 8.8.8.8:53 crl.globalsign.com udp
US 8.8.8.8:53 ef64a6.api.socdn.com udp

Files

C:\Users\Admin\AppData\Local\Temp\n8421\s8421.exe

MD5 0e88682aeba4d7ef923b316f97f990ba
SHA1 a54a0df52206ab79c0ad19be7402ab8564b7ad8c
SHA256 6be0358b2703e0e317ec4ddefbc320014b3c2a14eb1d959b0ed399586fd2bba1
SHA512 c0755f0b6fd5d01872464c1fa4b3d11c4ad4fd84f355bc9a9938bc5057373c18753915eeaabd31eb1db5cd95399a5b5083de31f11b55adba58316082421607c6

memory/3668-14-0x00007FFBF8EA5000-0x00007FFBF8EA6000-memory.dmp

memory/3668-15-0x00007FFBF8BF0000-0x00007FFBF9591000-memory.dmp

memory/3668-16-0x00007FFBF8EA5000-0x00007FFBF8EA6000-memory.dmp

memory/3668-17-0x000000001BB10000-0x000000001BB1E000-memory.dmp

memory/3668-20-0x000000001C9B0000-0x000000001CE7E000-memory.dmp

memory/3668-21-0x000000001CF20000-0x000000001CFBC000-memory.dmp

memory/3668-22-0x000000001D2E0000-0x000000001D342000-memory.dmp

memory/3668-23-0x00007FFBF8BF0000-0x00007FFBF9591000-memory.dmp

memory/3668-24-0x00007FFBF8BF0000-0x00007FFBF9591000-memory.dmp

memory/3668-25-0x000000001CFD0000-0x000000001CFD8000-memory.dmp

memory/3668-26-0x00007FFBF8BF0000-0x00007FFBF9591000-memory.dmp

memory/3668-27-0x00007FFBF8BF0000-0x00007FFBF9591000-memory.dmp

memory/3668-28-0x00007FFBF8BF0000-0x00007FFBF9591000-memory.dmp

memory/3668-29-0x00007FFBF8BF0000-0x00007FFBF9591000-memory.dmp

memory/3668-30-0x00007FFBF8BF0000-0x00007FFBF9591000-memory.dmp

memory/3668-31-0x00007FFBF8BF0000-0x00007FFBF9591000-memory.dmp

memory/3668-32-0x00007FFBF8BF0000-0x00007FFBF9591000-memory.dmp

memory/3668-33-0x0000000021080000-0x000000002158E000-memory.dmp

memory/3668-34-0x00007FFBF8BF0000-0x00007FFBF9591000-memory.dmp

memory/3668-35-0x00007FFBF8BF0000-0x00007FFBF9591000-memory.dmp

memory/3668-37-0x00007FFBF8BF0000-0x00007FFBF9591000-memory.dmp