Malware Analysis Report

2024-10-16 06:45

Sample ID 240615-w1bfxszgjc
Target SpyderCrypter.exe
SHA256 8babb9a5318d0b2fa43d6c18e91a23a70de547243db91f866e50bb2ff1b7db8b
Tags
themida agenttesla evasion keylogger 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 Overview

score
10/10

SHA256

8babb9a5318d0b2fa43d6c18e91a23a70de547243db91f866e50bb2ff1b7db8b

Threat Level: Known bad

The file SpyderCrypter.exe was found to be: Known bad.

Malicious Activity Summary

themida agenttesla evasion keylogger spyware stealer trojan

AgentTesla

AgentTesla payload

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

Themida packer

Checks computer location settings

Checks BIOS information in registry

Executes dropped EXE

Checks whether UAC is enabled

Legitimate hosting services abused for malware hosting/C2

Enumerates physical storage devices

Unsigned PE

Program crash

Suspicious use of WriteProcessMemory

Modifies registry class

Enumerates system info in registry

Suspicious use of AdjustPrivilegeToken

Creates scheduled task(s)

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-06-15 18:22

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

2024-06-15 18:22

Reported

2024-06-15 18:25

Platform

win10v2004-20240611-en

Max time kernel

41s

Max time network

36s

Command Line

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

Signatures

AgentTesla

keylogger trojan stealer spyware agenttesla

AgentTesla payload

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

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\SpyderCrypter.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\SpyderCrypter.exe N/A
Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion C:\Users\Admin\AppData\Local\Temp\SpyderCrypter.exe N/A

Checks computer location settings

Description Indicator Process Target
Key value queried \REGISTRY\USER\S-1-5-21-4204450073-1267028356-951339405-1000\Control Panel\International\Geo\Nation C:\Users\Admin\AppData\Local\Temp\SpyderCrypter.exe N/A
Key value queried \REGISTRY\USER\S-1-5-21-4204450073-1267028356-951339405-1000\Control Panel\International\Geo\Nation C:\Windows\SysWOW64\wscript.exe N/A
Key value queried \REGISTRY\USER\S-1-5-21-4204450073-1267028356-951339405-1000\Control Panel\International\Geo\Nation C:\Users\Admin\AppData\Local\Temp\SpyderResources.exe N/A

Executes dropped EXE

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\SpyderResources.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\SpyderCrypter.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
N/A raw.githubusercontent.com N/A 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

Enumerates system info in registry

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

Modifies registry class

Description Indicator Process Target
Set value (str) \REGISTRY\USER\S-1-5-21-4204450073-1267028356-951339405-1000_Classes\ms-settings\shell\open\command\DelegateExecute = "0" C:\Windows\SysWOW64\reg.exe N/A
Key created \REGISTRY\USER\S-1-5-21-4204450073-1267028356-951339405-1000_Classes\ms-settings\shell\open\command C:\Windows\SysWOW64\reg.exe N/A
Key created \REGISTRY\USER\S-1-5-21-4204450073-1267028356-951339405-1000_Classes\ms-settings C:\Windows\SysWOW64\reg.exe N/A
Key created \REGISTRY\USER\S-1-5-21-4204450073-1267028356-951339405-1000_Classes\ms-settings\shell C:\Windows\SysWOW64\reg.exe N/A
Key created \REGISTRY\USER\S-1-5-21-4204450073-1267028356-951339405-1000_Classes\ms-settings\shell\open C:\Windows\SysWOW64\reg.exe N/A
Set value (str) \REGISTRY\USER\S-1-5-21-4204450073-1267028356-951339405-1000_Classes\ms-settings\shell\open\command\ = "wscript.exe C:\\Users\\Admin\\AppData\\Local\\Temp\\jackpear63605335.vbs" C:\Windows\SysWOW64\reg.exe N/A
Key created \REGISTRY\USER\S-1-5-21-4204450073-1267028356-951339405-1000_Classes\ms-settings\shell\open\command C:\Windows\SysWOW64\reg.exe N/A

Suspicious use of AdjustPrivilegeToken

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

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 2940 wrote to memory of 3600 N/A C:\Users\Admin\AppData\Local\Temp\SpyderCrypter.exe C:\Users\Admin\AppData\Local\Temp\SpyderResources.exe
PID 2940 wrote to memory of 3600 N/A C:\Users\Admin\AppData\Local\Temp\SpyderCrypter.exe C:\Users\Admin\AppData\Local\Temp\SpyderResources.exe
PID 2940 wrote to memory of 3600 N/A C:\Users\Admin\AppData\Local\Temp\SpyderCrypter.exe C:\Users\Admin\AppData\Local\Temp\SpyderResources.exe
PID 3600 wrote to memory of 1440 N/A C:\Users\Admin\AppData\Local\Temp\SpyderResources.exe C:\Windows\SysWOW64\reg.exe
PID 3600 wrote to memory of 1440 N/A C:\Users\Admin\AppData\Local\Temp\SpyderResources.exe C:\Windows\SysWOW64\reg.exe
PID 3600 wrote to memory of 1440 N/A C:\Users\Admin\AppData\Local\Temp\SpyderResources.exe C:\Windows\SysWOW64\reg.exe
PID 3600 wrote to memory of 4836 N/A C:\Users\Admin\AppData\Local\Temp\SpyderResources.exe C:\Windows\SysWOW64\reg.exe
PID 3600 wrote to memory of 4836 N/A C:\Users\Admin\AppData\Local\Temp\SpyderResources.exe C:\Windows\SysWOW64\reg.exe
PID 3600 wrote to memory of 4836 N/A C:\Users\Admin\AppData\Local\Temp\SpyderResources.exe C:\Windows\SysWOW64\reg.exe
PID 3600 wrote to memory of 1604 N/A C:\Users\Admin\AppData\Local\Temp\SpyderResources.exe C:\Windows\SysWOW64\cmd.exe
PID 3600 wrote to memory of 1604 N/A C:\Users\Admin\AppData\Local\Temp\SpyderResources.exe C:\Windows\SysWOW64\cmd.exe
PID 3600 wrote to memory of 1604 N/A C:\Users\Admin\AppData\Local\Temp\SpyderResources.exe C:\Windows\SysWOW64\cmd.exe
PID 1604 wrote to memory of 4212 N/A C:\Windows\SysWOW64\cmd.exe C:\Windows\SysWOW64\ComputerDefaults.exe
PID 1604 wrote to memory of 4212 N/A C:\Windows\SysWOW64\cmd.exe C:\Windows\SysWOW64\ComputerDefaults.exe
PID 1604 wrote to memory of 4212 N/A C:\Windows\SysWOW64\cmd.exe C:\Windows\SysWOW64\ComputerDefaults.exe
PID 4212 wrote to memory of 3868 N/A C:\Windows\SysWOW64\ComputerDefaults.exe C:\Windows\SysWOW64\wscript.exe
PID 4212 wrote to memory of 3868 N/A C:\Windows\SysWOW64\ComputerDefaults.exe C:\Windows\SysWOW64\wscript.exe
PID 4212 wrote to memory of 3868 N/A C:\Windows\SysWOW64\ComputerDefaults.exe C:\Windows\SysWOW64\wscript.exe
PID 3868 wrote to memory of 3308 N/A C:\Windows\SysWOW64\wscript.exe C:\Windows\SysWOW64\cmd.exe
PID 3868 wrote to memory of 3308 N/A C:\Windows\SysWOW64\wscript.exe C:\Windows\SysWOW64\cmd.exe
PID 3868 wrote to memory of 3308 N/A C:\Windows\SysWOW64\wscript.exe C:\Windows\SysWOW64\cmd.exe
PID 3600 wrote to memory of 3984 N/A C:\Users\Admin\AppData\Local\Temp\SpyderResources.exe C:\Windows\SysWOW64\cmd.exe
PID 3600 wrote to memory of 3984 N/A C:\Users\Admin\AppData\Local\Temp\SpyderResources.exe C:\Windows\SysWOW64\cmd.exe
PID 3600 wrote to memory of 3984 N/A C:\Users\Admin\AppData\Local\Temp\SpyderResources.exe C:\Windows\SysWOW64\cmd.exe
PID 3984 wrote to memory of 1184 N/A C:\Windows\SysWOW64\cmd.exe C:\Windows\SysWOW64\schtasks.exe
PID 3984 wrote to memory of 1184 N/A C:\Windows\SysWOW64\cmd.exe C:\Windows\SysWOW64\schtasks.exe
PID 3984 wrote to memory of 1184 N/A C:\Windows\SysWOW64\cmd.exe C:\Windows\SysWOW64\schtasks.exe

Processes

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

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

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

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

C:\Windows\SysWOW64\reg.exe

"C:\Windows\system32\reg.exe" add "HKCU\Software\Classes\ms-settings\shell\open\command" /d "wscript.exe C:\Users\Admin\AppData\Local\Temp\jackpear63605335.vbs" /f

C:\Windows\SysWOW64\reg.exe

"C:\Windows\system32\reg.exe" add "HKCU\Software\Classes\ms-settings\shell\open\command" /v DelegateExecute /d "0" /f

C:\Windows\SysWOW64\cmd.exe

"cmd.exe" /C computerdefaults.exe

C:\Windows\SysWOW64\ComputerDefaults.exe

computerdefaults.exe

C:\Windows\SysWOW64\wscript.exe

"wscript.exe" C:\Users\Admin\AppData\Local\Temp\jackpear63605335.vbs

C:\Windows\SysWOW64\cmd.exe

"C:\Windows\System32\cmd.exe" /C del C:\Windows\System32\drivers\etc\hosts

C:\Windows\SysWOW64\cmd.exe

"C:\Windows\System32\cmd.exe" /C schtasks /Create /SC ONLOGON /TN BraveUpdateScheduler_QMyk9gHxWJYAojiqe050MX /TR "C:\Users\Admin\AppData\Local\Microsoft\Windows\Notifications\wpnidm\QMyk9gHxWJYAojiqe050MX.exe" /RL HIGHEST /IT

C:\Windows\SysWOW64\schtasks.exe

schtasks /Create /SC ONLOGON /TN BraveUpdateScheduler_QMyk9gHxWJYAojiqe050MX /TR "C:\Users\Admin\AppData\Local\Microsoft\Windows\Notifications\wpnidm\QMyk9gHxWJYAojiqe050MX.exe" /RL HIGHEST /IT

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 416 -p 3600 -ip 3600

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 3600 -s 1808

Network

Country Destination Domain Proto
US 8.8.8.8:53 g.bing.com udp
US 204.79.197.237:443 g.bing.com tcp
NL 23.62.61.97:443 www.bing.com tcp
US 8.8.8.8:53 8.8.8.8.in-addr.arpa udp
US 8.8.8.8:53 raw.githubusercontent.com udp
US 8.8.8.8:53 71.31.126.40.in-addr.arpa udp
US 8.8.8.8:53 240.197.17.2.in-addr.arpa udp
US 8.8.8.8:53 26.35.223.20.in-addr.arpa udp
US 8.8.8.8:53 97.61.62.23.in-addr.arpa udp
US 185.199.108.133:443 raw.githubusercontent.com tcp
US 8.8.8.8:53 133.108.199.185.in-addr.arpa udp
US 185.199.108.133:443 raw.githubusercontent.com tcp
US 8.8.8.8:53 textpubshiers.top udp
US 172.67.146.76:443 textpubshiers.top tcp
US 8.8.8.8:53 76.146.67.172.in-addr.arpa udp
US 8.8.8.8:53 50.23.12.20.in-addr.arpa udp
US 8.8.8.8:53 56.126.166.20.in-addr.arpa udp
US 8.8.8.8:53 172.210.232.199.in-addr.arpa udp

Files

memory/2940-0-0x0000000000430000-0x0000000000E3C000-memory.dmp

memory/2940-1-0x0000000077110000-0x0000000077111000-memory.dmp

memory/2940-3-0x00000000770F0000-0x00000000771E0000-memory.dmp

memory/2940-7-0x00000000770F0000-0x00000000771E0000-memory.dmp

memory/2940-6-0x00000000770F0000-0x00000000771E0000-memory.dmp

memory/2940-5-0x00000000770F0000-0x00000000771E0000-memory.dmp

memory/2940-8-0x00000000770F0000-0x00000000771E0000-memory.dmp

memory/2940-4-0x00000000770F0000-0x00000000771E0000-memory.dmp

memory/2940-2-0x00000000770F0000-0x00000000771E0000-memory.dmp

memory/2940-11-0x0000000000430000-0x0000000000E3C000-memory.dmp

memory/2940-12-0x0000000000430000-0x0000000000E3C000-memory.dmp

memory/2940-13-0x0000000005E10000-0x00000000063B4000-memory.dmp

memory/2940-14-0x0000000005670000-0x0000000005702000-memory.dmp

memory/2940-15-0x00000000031A0000-0x00000000031AA000-memory.dmp

memory/2940-16-0x0000000005A50000-0x0000000005C64000-memory.dmp

memory/2940-17-0x00000000770F0000-0x00000000771E0000-memory.dmp

memory/2940-18-0x0000000008E90000-0x0000000008F40000-memory.dmp

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

MD5 cc132ca7e1cf77db1a3e737260fcf14b
SHA1 f6058656d44e95c23071251b278bc779a88083da
SHA256 4c62d4e150f91dc3fdd1f29c955763c52f357045b1a2edf98ac272631dfdb210
SHA512 52e64fdf7acf08525ddb352b0dd0b6ca3df8d8f13fa09dcd31c270c4e2040f2361c04ba56915cd05539f581df712562537239fbc942131cc725502af6d010fee

memory/3600-31-0x0000000004C50000-0x0000000004C6A000-memory.dmp

memory/3600-30-0x0000000000E30000-0x0000000000E3A000-memory.dmp

memory/3600-34-0x00000000770F0000-0x00000000771E0000-memory.dmp

memory/3600-33-0x00000000770F0000-0x00000000771E0000-memory.dmp

memory/3600-32-0x00000000027F0000-0x00000000027FA000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\jackpear63605335.vbs

MD5 a34267102c21aff46aecc85598924544
SHA1 77268af47c6a4b9c6be7f7487b2c9b233d49d435
SHA256 eba7ab5c248e46dbe70470b41ebf25a378b4eff9ce632adff927ac1f95583d44
SHA512 5d320312b93b46c9051a20c82d6405a3f2c78b23adb3ab3e71aad854b65b500937de7ca2986cf79967386d689beecccf676d89afde8ecc5d5ad0cb4ae2bf38a3

memory/3600-37-0x000000000BB50000-0x000000000D093000-memory.dmp

memory/3600-39-0x00000000770F0000-0x00000000771E0000-memory.dmp

memory/2940-40-0x0000000000430000-0x0000000000E3C000-memory.dmp

memory/2940-44-0x00000000770F0000-0x00000000771E0000-memory.dmp

memory/2940-43-0x00000000770F0000-0x00000000771E0000-memory.dmp

memory/2940-42-0x00000000770F0000-0x00000000771E0000-memory.dmp

memory/2940-41-0x0000000077110000-0x0000000077111000-memory.dmp

memory/2940-46-0x00000000770F0000-0x00000000771E0000-memory.dmp

memory/2940-47-0x00000000770F0000-0x00000000771E0000-memory.dmp

memory/2940-45-0x00000000770F0000-0x00000000771E0000-memory.dmp

memory/2940-49-0x00000000770F0000-0x00000000771E0000-memory.dmp