Malware Analysis Report

2025-01-18 12:41

Sample ID 240403-aqsrkaab5w
Target 9b288f1ed4b43253489dbd03b8902445_JaffaCakes118
SHA256 fe68fa8aa8522badacc0c97554cd4a1b8d466dd16dc61b86542e799db0d1f7ae
Tags
formbook hs3h evasion rat spyware stealer trojan
score
10/10

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
10/10

SHA256

fe68fa8aa8522badacc0c97554cd4a1b8d466dd16dc61b86542e799db0d1f7ae

Threat Level: Known bad

The file 9b288f1ed4b43253489dbd03b8902445_JaffaCakes118 was found to be: Known bad.

Malicious Activity Summary

formbook hs3h evasion rat spyware stealer trojan

Formbook

Formbook payload

Looks for VirtualBox Guest Additions in registry

Looks for VMWare Tools registry key

Checks BIOS information in registry

Maps connected drives based on registry

Suspicious use of SetThreadContext

Enumerates physical storage devices

Unsigned PE

Suspicious use of AdjustPrivilegeToken

Suspicious use of WriteProcessMemory

Creates scheduled task(s)

Suspicious behavior: EnumeratesProcesses

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-04-03 00:25

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-04-03 00:25

Reported

2024-04-03 00:27

Platform

win7-20240215-en

Max time kernel

118s

Max time network

120s

Command Line

"C:\Users\Admin\AppData\Local\Temp\9b288f1ed4b43253489dbd03b8902445_JaffaCakes118.exe"

Signatures

Formbook

trojan spyware stealer formbook

Formbook payload

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

Looks for VirtualBox Guest Additions in registry

evasion
Description Indicator Process Target
Key opened \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Oracle\VirtualBox Guest Additions C:\Users\Admin\AppData\Local\Temp\9b288f1ed4b43253489dbd03b8902445_JaffaCakes118.exe N/A

Looks for VMWare Tools registry key

evasion
Description Indicator Process Target
Key opened \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\VMware, Inc.\VMware Tools C:\Users\Admin\AppData\Local\Temp\9b288f1ed4b43253489dbd03b8902445_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\9b288f1ed4b43253489dbd03b8902445_JaffaCakes118.exe N/A
Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion C:\Users\Admin\AppData\Local\Temp\9b288f1ed4b43253489dbd03b8902445_JaffaCakes118.exe N/A

Maps connected drives based on registry

Description Indicator Process Target
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Disk\Enum C:\Users\Admin\AppData\Local\Temp\9b288f1ed4b43253489dbd03b8902445_JaffaCakes118.exe N/A
Key value queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\services\Disk\Enum\0 C:\Users\Admin\AppData\Local\Temp\9b288f1ed4b43253489dbd03b8902445_JaffaCakes118.exe N/A

Enumerates physical storage devices

Creates scheduled task(s)

persistence
Description Indicator Process Target
N/A N/A C:\Windows\SysWOW64\schtasks.exe N/A

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Local\Temp\9b288f1ed4b43253489dbd03b8902445_JaffaCakes118.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 2900 wrote to memory of 2352 N/A C:\Users\Admin\AppData\Local\Temp\9b288f1ed4b43253489dbd03b8902445_JaffaCakes118.exe C:\Windows\SysWOW64\schtasks.exe
PID 2900 wrote to memory of 2352 N/A C:\Users\Admin\AppData\Local\Temp\9b288f1ed4b43253489dbd03b8902445_JaffaCakes118.exe C:\Windows\SysWOW64\schtasks.exe
PID 2900 wrote to memory of 2352 N/A C:\Users\Admin\AppData\Local\Temp\9b288f1ed4b43253489dbd03b8902445_JaffaCakes118.exe C:\Windows\SysWOW64\schtasks.exe
PID 2900 wrote to memory of 2352 N/A C:\Users\Admin\AppData\Local\Temp\9b288f1ed4b43253489dbd03b8902445_JaffaCakes118.exe C:\Windows\SysWOW64\schtasks.exe
PID 2900 wrote to memory of 2496 N/A C:\Users\Admin\AppData\Local\Temp\9b288f1ed4b43253489dbd03b8902445_JaffaCakes118.exe C:\Users\Admin\AppData\Local\Temp\9b288f1ed4b43253489dbd03b8902445_JaffaCakes118.exe
PID 2900 wrote to memory of 2496 N/A C:\Users\Admin\AppData\Local\Temp\9b288f1ed4b43253489dbd03b8902445_JaffaCakes118.exe C:\Users\Admin\AppData\Local\Temp\9b288f1ed4b43253489dbd03b8902445_JaffaCakes118.exe
PID 2900 wrote to memory of 2496 N/A C:\Users\Admin\AppData\Local\Temp\9b288f1ed4b43253489dbd03b8902445_JaffaCakes118.exe C:\Users\Admin\AppData\Local\Temp\9b288f1ed4b43253489dbd03b8902445_JaffaCakes118.exe
PID 2900 wrote to memory of 2496 N/A C:\Users\Admin\AppData\Local\Temp\9b288f1ed4b43253489dbd03b8902445_JaffaCakes118.exe C:\Users\Admin\AppData\Local\Temp\9b288f1ed4b43253489dbd03b8902445_JaffaCakes118.exe
PID 2900 wrote to memory of 2496 N/A C:\Users\Admin\AppData\Local\Temp\9b288f1ed4b43253489dbd03b8902445_JaffaCakes118.exe C:\Users\Admin\AppData\Local\Temp\9b288f1ed4b43253489dbd03b8902445_JaffaCakes118.exe
PID 2900 wrote to memory of 2496 N/A C:\Users\Admin\AppData\Local\Temp\9b288f1ed4b43253489dbd03b8902445_JaffaCakes118.exe C:\Users\Admin\AppData\Local\Temp\9b288f1ed4b43253489dbd03b8902445_JaffaCakes118.exe
PID 2900 wrote to memory of 2496 N/A C:\Users\Admin\AppData\Local\Temp\9b288f1ed4b43253489dbd03b8902445_JaffaCakes118.exe C:\Users\Admin\AppData\Local\Temp\9b288f1ed4b43253489dbd03b8902445_JaffaCakes118.exe

Processes

C:\Users\Admin\AppData\Local\Temp\9b288f1ed4b43253489dbd03b8902445_JaffaCakes118.exe

"C:\Users\Admin\AppData\Local\Temp\9b288f1ed4b43253489dbd03b8902445_JaffaCakes118.exe"

C:\Windows\SysWOW64\schtasks.exe

"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\yteSoDKQ" /XML "C:\Users\Admin\AppData\Local\Temp\tmp871A.tmp"

C:\Users\Admin\AppData\Local\Temp\9b288f1ed4b43253489dbd03b8902445_JaffaCakes118.exe

"{path}"

Network

N/A

Files

memory/2900-0-0x0000000000A50000-0x0000000000B28000-memory.dmp

memory/2900-1-0x0000000074B00000-0x00000000751EE000-memory.dmp

memory/2900-2-0x0000000004A20000-0x0000000004A60000-memory.dmp

memory/2900-3-0x00000000003E0000-0x00000000003F4000-memory.dmp

memory/2900-4-0x0000000074B00000-0x00000000751EE000-memory.dmp

memory/2900-5-0x0000000004A20000-0x0000000004A60000-memory.dmp

memory/2900-6-0x0000000005EE0000-0x0000000005F6A000-memory.dmp

memory/2900-7-0x00000000006A0000-0x00000000006D4000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\tmp871A.tmp

MD5 060a31c8385694809d17f38e0a2c8acf
SHA1 e80d4e76493d3dd5b1191a5b954d1ee6afe50edc
SHA256 46f8d8b135ae373cf66312a713b8a7de1d17d9812171dc1e29983fbfcf592655
SHA512 014033626dec567e9c308c1356d8c41288244b433e31bc8d9cacf7ae81ebbc8893bf62bb5c3baccd349ef6ad189ea04e333ab2f0b3948c0e54f55690a7cfca37

memory/2496-15-0x0000000000400000-0x000000000042F000-memory.dmp

memory/2496-13-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

memory/2496-12-0x0000000000400000-0x000000000042F000-memory.dmp

memory/2496-11-0x0000000000400000-0x000000000042F000-memory.dmp

memory/2496-17-0x0000000000B30000-0x0000000000E33000-memory.dmp

memory/2900-16-0x0000000074B00000-0x00000000751EE000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-04-03 00:25

Reported

2024-04-03 00:28

Platform

win10v2004-20240319-en

Max time kernel

146s

Max time network

152s

Command Line

"C:\Users\Admin\AppData\Local\Temp\9b288f1ed4b43253489dbd03b8902445_JaffaCakes118.exe"

Signatures

Looks for VirtualBox Guest Additions in registry

evasion
Description Indicator Process Target
Key opened \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Oracle\VirtualBox Guest Additions C:\Users\Admin\AppData\Local\Temp\9b288f1ed4b43253489dbd03b8902445_JaffaCakes118.exe N/A

Looks for VMWare Tools registry key

evasion
Description Indicator Process Target
Key opened \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\VMware, Inc.\VMware Tools C:\Users\Admin\AppData\Local\Temp\9b288f1ed4b43253489dbd03b8902445_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\9b288f1ed4b43253489dbd03b8902445_JaffaCakes118.exe N/A
Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion C:\Users\Admin\AppData\Local\Temp\9b288f1ed4b43253489dbd03b8902445_JaffaCakes118.exe N/A

Maps connected drives based on registry

Description Indicator Process Target
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Disk\Enum C:\Users\Admin\AppData\Local\Temp\9b288f1ed4b43253489dbd03b8902445_JaffaCakes118.exe N/A
Key value queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\disk\Enum\0 C:\Users\Admin\AppData\Local\Temp\9b288f1ed4b43253489dbd03b8902445_JaffaCakes118.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\9b288f1ed4b43253489dbd03b8902445_JaffaCakes118.exe

"C:\Users\Admin\AppData\Local\Temp\9b288f1ed4b43253489dbd03b8902445_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 --mojo-platform-channel-handle=4984 --field-trial-handle=2232,i,3915538061666887171,15629965885515244134,262144 --variations-seed-version /prefetch:8

Network

Country Destination Domain Proto
US 8.8.8.8:53 76.32.126.40.in-addr.arpa udp
US 8.8.8.8:53 84.117.19.2.in-addr.arpa udp
US 8.8.8.8:53 149.220.183.52.in-addr.arpa udp
US 8.8.8.8:53 9.228.82.20.in-addr.arpa udp
US 8.8.8.8:53 14.34.115.104.in-addr.arpa udp
US 8.8.8.8:53 205.47.74.20.in-addr.arpa udp
NL 142.251.39.110:443 tcp
NL 172.217.168.202:443 tcp
US 8.8.8.8:53 58.55.71.13.in-addr.arpa udp
NL 142.251.39.110:443 tcp
US 8.8.8.8:53 157.123.68.40.in-addr.arpa udp
US 8.8.8.8:53 18.31.95.13.in-addr.arpa udp
US 8.8.8.8:53 98.117.19.2.in-addr.arpa udp
US 8.8.8.8:53 240.221.184.93.in-addr.arpa udp
US 8.8.8.8:53 tse1.mm.bing.net udp
US 204.79.197.200:443 tse1.mm.bing.net tcp
US 204.79.197.200:443 tse1.mm.bing.net tcp
US 204.79.197.200:443 tse1.mm.bing.net tcp
US 204.79.197.200:443 tse1.mm.bing.net tcp
US 204.79.197.200:443 tse1.mm.bing.net tcp
US 8.8.8.8:53 55.36.223.20.in-addr.arpa udp
US 8.8.8.8:53 200.197.79.204.in-addr.arpa udp
US 8.8.8.8:53 14.179.89.13.in-addr.arpa udp

Files

memory/1560-0-0x0000000074C90000-0x0000000075440000-memory.dmp

memory/1560-1-0x00000000004D0000-0x00000000005A8000-memory.dmp

memory/1560-2-0x0000000004E30000-0x0000000004ECC000-memory.dmp

memory/1560-3-0x0000000005480000-0x0000000005A24000-memory.dmp

memory/1560-4-0x0000000004ED0000-0x0000000004F62000-memory.dmp

memory/1560-5-0x0000000005060000-0x0000000005070000-memory.dmp

memory/1560-6-0x0000000005070000-0x000000000507A000-memory.dmp

memory/1560-7-0x00000000050E0000-0x0000000005136000-memory.dmp

memory/1560-8-0x0000000002850000-0x0000000002864000-memory.dmp

memory/1560-9-0x0000000074C90000-0x0000000075440000-memory.dmp

memory/1560-10-0x0000000005060000-0x0000000005070000-memory.dmp

memory/1560-11-0x0000000008F10000-0x0000000008F9A000-memory.dmp

memory/1560-12-0x0000000006450000-0x0000000006484000-memory.dmp

memory/1560-13-0x000000000E010000-0x000000000E076000-memory.dmp

memory/1560-15-0x0000000074C90000-0x0000000075440000-memory.dmp