Analysis
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max time kernel
145s -
max time network
123s -
platform
windows10-2004_x64 -
resource
win10v2004-20240508-en -
resource tags
arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system -
submitted
21-05-2024 12:01
Behavioral task
behavioral1
Sample
345ac5c010fdb40daa99bce729a16a3e69ce4e47131ea74af2428177114f109c.exe
Resource
win10v2004-20240508-en
General
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Target
345ac5c010fdb40daa99bce729a16a3e69ce4e47131ea74af2428177114f109c.exe
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Size
1.7MB
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MD5
d2407c83e06990d094b2a5963c48830a
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SHA1
00a3e8b4722f185f2743eb394e5c84f07553300a
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SHA256
345ac5c010fdb40daa99bce729a16a3e69ce4e47131ea74af2428177114f109c
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SHA512
e5b2a786748dffeaaf58681d594f7a872846668fc268c637a8a1285e7fc83f78fb6d379a5d843257b7e892cddbf1ec1aad6d64abcfb27851e3c4759564eeb210
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SSDEEP
49152:Y4tw5LMc4mgD8y7TTV3voc5u++PTQBXQvQ4iflpiXhywMs:JtQLMc4HD8igcYXPEBAvQ4iflpE4Hs
Malware Config
Extracted
amadey
4.20
18befc
http://5.42.96.141
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install_dir
908f070dff
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install_file
explorku.exe
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strings_key
b25a9385246248a95c600f9a061438e1
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url_paths
/go34ko8/index.php
Signatures
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Identifies VirtualBox via ACPI registry values (likely anti-VM) 2 TTPs 4 IoCs
Processes:
345ac5c010fdb40daa99bce729a16a3e69ce4e47131ea74af2428177114f109c.exeexplorku.exeexplorku.exeexplorku.exedescription ioc process Key opened \REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__ 345ac5c010fdb40daa99bce729a16a3e69ce4e47131ea74af2428177114f109c.exe Key opened \REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__ explorku.exe Key opened \REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__ explorku.exe Key opened \REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__ explorku.exe -
Checks BIOS information in registry 2 TTPs 8 IoCs
BIOS information is often read in order to detect sandboxing environments.
Processes:
explorku.exe345ac5c010fdb40daa99bce729a16a3e69ce4e47131ea74af2428177114f109c.exeexplorku.exeexplorku.exedescription ioc process Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion explorku.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion explorku.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion 345ac5c010fdb40daa99bce729a16a3e69ce4e47131ea74af2428177114f109c.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion 345ac5c010fdb40daa99bce729a16a3e69ce4e47131ea74af2428177114f109c.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion explorku.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion explorku.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion explorku.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion explorku.exe -
Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
Processes:
345ac5c010fdb40daa99bce729a16a3e69ce4e47131ea74af2428177114f109c.exedescription ioc process Key value queried \REGISTRY\USER\S-1-5-21-2539840389-1261165778-1087677076-1000\Control Panel\International\Geo\Nation 345ac5c010fdb40daa99bce729a16a3e69ce4e47131ea74af2428177114f109c.exe -
Executes dropped EXE 3 IoCs
Processes:
explorku.exeexplorku.exeexplorku.exepid process 3856 explorku.exe 3724 explorku.exe 4836 explorku.exe -
Processes:
resource yara_rule behavioral1/memory/2392-0-0x0000000000FA0000-0x00000000014DF000-memory.dmp themida behavioral1/memory/2392-3-0x0000000000FA0000-0x00000000014DF000-memory.dmp themida behavioral1/memory/2392-7-0x0000000000FA0000-0x00000000014DF000-memory.dmp themida behavioral1/memory/2392-8-0x0000000000FA0000-0x00000000014DF000-memory.dmp themida behavioral1/memory/2392-6-0x0000000000FA0000-0x00000000014DF000-memory.dmp themida behavioral1/memory/2392-5-0x0000000000FA0000-0x00000000014DF000-memory.dmp themida behavioral1/memory/2392-4-0x0000000000FA0000-0x00000000014DF000-memory.dmp themida behavioral1/memory/2392-2-0x0000000000FA0000-0x00000000014DF000-memory.dmp themida behavioral1/memory/2392-1-0x0000000000FA0000-0x00000000014DF000-memory.dmp themida C:\Users\Admin\AppData\Local\Temp\908f070dff\explorku.exe themida behavioral1/memory/2392-21-0x0000000000FA0000-0x00000000014DF000-memory.dmp themida behavioral1/memory/3856-22-0x00000000000F0000-0x000000000062F000-memory.dmp themida behavioral1/memory/3856-29-0x00000000000F0000-0x000000000062F000-memory.dmp themida behavioral1/memory/3856-30-0x00000000000F0000-0x000000000062F000-memory.dmp themida behavioral1/memory/3856-28-0x00000000000F0000-0x000000000062F000-memory.dmp themida behavioral1/memory/3856-27-0x00000000000F0000-0x000000000062F000-memory.dmp themida behavioral1/memory/3856-25-0x00000000000F0000-0x000000000062F000-memory.dmp themida behavioral1/memory/3856-26-0x00000000000F0000-0x000000000062F000-memory.dmp themida behavioral1/memory/3856-23-0x00000000000F0000-0x000000000062F000-memory.dmp themida behavioral1/memory/3856-24-0x00000000000F0000-0x000000000062F000-memory.dmp themida behavioral1/memory/3856-31-0x00000000000F0000-0x000000000062F000-memory.dmp themida behavioral1/memory/3724-34-0x00000000000F0000-0x000000000062F000-memory.dmp themida behavioral1/memory/3724-35-0x00000000000F0000-0x000000000062F000-memory.dmp themida behavioral1/memory/3724-36-0x00000000000F0000-0x000000000062F000-memory.dmp themida behavioral1/memory/3724-37-0x00000000000F0000-0x000000000062F000-memory.dmp themida behavioral1/memory/3724-38-0x00000000000F0000-0x000000000062F000-memory.dmp themida behavioral1/memory/3724-39-0x00000000000F0000-0x000000000062F000-memory.dmp themida behavioral1/memory/3724-42-0x00000000000F0000-0x000000000062F000-memory.dmp themida behavioral1/memory/3724-41-0x00000000000F0000-0x000000000062F000-memory.dmp themida behavioral1/memory/3724-40-0x00000000000F0000-0x000000000062F000-memory.dmp themida behavioral1/memory/3724-44-0x00000000000F0000-0x000000000062F000-memory.dmp themida behavioral1/memory/4836-53-0x00000000000F0000-0x000000000062F000-memory.dmp themida behavioral1/memory/4836-56-0x00000000000F0000-0x000000000062F000-memory.dmp themida behavioral1/memory/4836-59-0x00000000000F0000-0x000000000062F000-memory.dmp themida behavioral1/memory/4836-57-0x00000000000F0000-0x000000000062F000-memory.dmp themida behavioral1/memory/4836-55-0x00000000000F0000-0x000000000062F000-memory.dmp themida behavioral1/memory/4836-54-0x00000000000F0000-0x000000000062F000-memory.dmp themida behavioral1/memory/4836-52-0x00000000000F0000-0x000000000062F000-memory.dmp themida behavioral1/memory/4836-58-0x00000000000F0000-0x000000000062F000-memory.dmp themida behavioral1/memory/4836-61-0x00000000000F0000-0x000000000062F000-memory.dmp themida -
Processes:
345ac5c010fdb40daa99bce729a16a3e69ce4e47131ea74af2428177114f109c.exeexplorku.exeexplorku.exeexplorku.exedescription ioc process Key value queried \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA 345ac5c010fdb40daa99bce729a16a3e69ce4e47131ea74af2428177114f109c.exe Key value queried \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA explorku.exe Key value queried \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA explorku.exe Key value queried \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA explorku.exe -
Drops file in Windows directory 1 IoCs
Processes:
345ac5c010fdb40daa99bce729a16a3e69ce4e47131ea74af2428177114f109c.exedescription ioc process File created C:\Windows\Tasks\explorku.job 345ac5c010fdb40daa99bce729a16a3e69ce4e47131ea74af2428177114f109c.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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Suspicious use of WriteProcessMemory 3 IoCs
Processes:
345ac5c010fdb40daa99bce729a16a3e69ce4e47131ea74af2428177114f109c.exedescription pid process target process PID 2392 wrote to memory of 3856 2392 345ac5c010fdb40daa99bce729a16a3e69ce4e47131ea74af2428177114f109c.exe explorku.exe PID 2392 wrote to memory of 3856 2392 345ac5c010fdb40daa99bce729a16a3e69ce4e47131ea74af2428177114f109c.exe explorku.exe PID 2392 wrote to memory of 3856 2392 345ac5c010fdb40daa99bce729a16a3e69ce4e47131ea74af2428177114f109c.exe explorku.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\345ac5c010fdb40daa99bce729a16a3e69ce4e47131ea74af2428177114f109c.exe"C:\Users\Admin\AppData\Local\Temp\345ac5c010fdb40daa99bce729a16a3e69ce4e47131ea74af2428177114f109c.exe"1⤵
- Identifies VirtualBox via ACPI registry values (likely anti-VM)
- Checks BIOS information in registry
- Checks computer location settings
- Checks whether UAC is enabled
- Drops file in Windows directory
- Suspicious use of WriteProcessMemory
PID:2392 -
C:\Users\Admin\AppData\Local\Temp\908f070dff\explorku.exe"C:\Users\Admin\AppData\Local\Temp\908f070dff\explorku.exe"2⤵
- Identifies VirtualBox via ACPI registry values (likely anti-VM)
- Checks BIOS information in registry
- Executes dropped EXE
- Checks whether UAC is enabled
PID:3856
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C:\Users\Admin\AppData\Local\Temp\908f070dff\explorku.exeC:\Users\Admin\AppData\Local\Temp\908f070dff\explorku.exe1⤵
- Identifies VirtualBox via ACPI registry values (likely anti-VM)
- Checks BIOS information in registry
- Executes dropped EXE
- Checks whether UAC is enabled
PID:3724
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C:\Users\Admin\AppData\Local\Temp\908f070dff\explorku.exeC:\Users\Admin\AppData\Local\Temp\908f070dff\explorku.exe1⤵
- Identifies VirtualBox via ACPI registry values (likely anti-VM)
- Checks BIOS information in registry
- Executes dropped EXE
- Checks whether UAC is enabled
PID:4836
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
1.7MB
MD5d2407c83e06990d094b2a5963c48830a
SHA100a3e8b4722f185f2743eb394e5c84f07553300a
SHA256345ac5c010fdb40daa99bce729a16a3e69ce4e47131ea74af2428177114f109c
SHA512e5b2a786748dffeaaf58681d594f7a872846668fc268c637a8a1285e7fc83f78fb6d379a5d843257b7e892cddbf1ec1aad6d64abcfb27851e3c4759564eeb210