Analysis
- max time kernel
146s - max time network
153s - platform
windows11-21h2_x64 - resource
win11-20240508-en - resource tags
arch:x64arch:x86image:win11-20240508-enlocale:en-usos:windows11-21h2-x64system - submitted
21/06/2024, 01:27
Static task
static1
1 signatures
Behavioral task
behavioral1
Sample
372b4be259b04e5c12c28cc81cdbd37dae860313a7304e5609e3b15ac9dae12a.exe
Resource
win10v2004-20240508-en
12 signatures
150 seconds
General
- Target 372b4be259b04e5c12c28cc81cdbd37dae860313a7304e5609e3b15ac9dae12a.exe
- Size 1.8MB
- Sample240621-bt4tnsvclb
- SHA256 372b4be259b04e5c12c28cc81cdbd37dae860313a7304e5609e3b15ac9dae12a
- MD5 a9c5337470f1bab3fcabd70cb075df6d
- SHA1 a3fe847ea273cf5d194d624516d16c3772f7f762
- SHA512 e3c1d339fb10314d61c94d8a6cb7da71043a66d94c95f7e2458f2435318d694f7782895ebadea870dbc658470b68329fad8c9a61451f438213a7a2e7fda6278b
- SSDEEP 49152:K70kBwxV4JX+CKY1CPVd2oFWpa8AlpvRs:vkBwxV48CKYdo0pGNRs
- MD5 SHA1 SHA512 SSDEEP
Malware Config
Extracted
Family
-
amadey
Version
-
4.21
Botnet
-
0e6740
C2
-
http://147.45.47.155
Attributes
-
install_dir
9217037dc9
-
install_file
explortu.exe
-
strings_key
8e894a8a4a3d0da8924003a561cfb244
-
url_paths
/ku4Nor9/index.php
rc4.plain
Signatures
- Identifies VirtualBox via ACPI registry values (likely anti-VM) 2 TTPs 4 IoCs
description ioc Process Key opened \REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__ 372b4be259b04e5c12c28cc81cdbd37dae860313a7304e5609e3b15ac9dae12a.exe Key opened \REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__ explortu.exe Key opened \REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__ explortu.exe Key opened \REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__ explortu.exe - Checks BIOS information in registry 2 TTPs 8 IoCs
BIOS information is often read in order to detect sandboxing environments.
description ioc Process Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion explortu.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion 372b4be259b04e5c12c28cc81cdbd37dae860313a7304e5609e3b15ac9dae12a.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion 372b4be259b04e5c12c28cc81cdbd37dae860313a7304e5609e3b15ac9dae12a.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion explortu.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion explortu.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion explortu.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion explortu.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion explortu.exe - Executes dropped EXE 3 IoCs
pid Process 1564 explortu.exe 3188 explortu.exe 2004 explortu.exe - Identifies Wine through registry keys 2 TTPs 4 IoCs
Wine is a compatibility layer capable of running Windows applications, which can be used as sandboxing environment.
description ioc Process Key opened \REGISTRY\USER\S-1-5-21-2457560273-69882387-977367775-1000\Software\Wine 372b4be259b04e5c12c28cc81cdbd37dae860313a7304e5609e3b15ac9dae12a.exe Key opened \REGISTRY\USER\S-1-5-21-2457560273-69882387-977367775-1000\Software\Wine explortu.exe Key opened \REGISTRY\USER\S-1-5-21-2457560273-69882387-977367775-1000\Software\Wine explortu.exe Key opened \REGISTRY\USER\S-1-5-21-2457560273-69882387-977367775-1000\Software\Wine explortu.exe - Suspicious use of NtSetInformationThreadHideFromDebugger 4 IoCs
pid Process 1000 372b4be259b04e5c12c28cc81cdbd37dae860313a7304e5609e3b15ac9dae12a.exe 1564 explortu.exe 3188 explortu.exe 2004 explortu.exe - Drops file in Windows directory 1 IoCs
description ioc Process File created C:\Windows\Tasks\explortu.job 372b4be259b04e5c12c28cc81cdbd37dae860313a7304e5609e3b15ac9dae12a.exe - Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
- Suspicious behavior: EnumeratesProcesses 8 IoCs
pid Process 1000 372b4be259b04e5c12c28cc81cdbd37dae860313a7304e5609e3b15ac9dae12a.exe 1000 372b4be259b04e5c12c28cc81cdbd37dae860313a7304e5609e3b15ac9dae12a.exe 1564 explortu.exe 1564 explortu.exe 3188 explortu.exe 3188 explortu.exe 2004 explortu.exe 2004 explortu.exe - Suspicious use of WriteProcessMemory 3 IoCs
description pid Process procid_target PID 1000 wrote to memory of 1564 1000 372b4be259b04e5c12c28cc81cdbd37dae860313a7304e5609e3b15ac9dae12a.exe 77 PID 1000 wrote to memory of 1564 1000 372b4be259b04e5c12c28cc81cdbd37dae860313a7304e5609e3b15ac9dae12a.exe 77 PID 1000 wrote to memory of 1564 1000 372b4be259b04e5c12c28cc81cdbd37dae860313a7304e5609e3b15ac9dae12a.exe 77
Processes
-
C:\Users\Admin\AppData\Local\Temp\372b4be259b04e5c12c28cc81cdbd37dae860313a7304e5609e3b15ac9dae12a.exe"C:\Users\Admin\AppData\Local\Temp\372b4be259b04e5c12c28cc81cdbd37dae860313a7304e5609e3b15ac9dae12a.exe"1⤵
- Identifies VirtualBox via ACPI registry values (likely anti-VM)
- Checks BIOS information in registry
- Identifies Wine through registry keys
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Drops file in Windows directory
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:1000 -
C:\Users\Admin\AppData\Local\Temp\9217037dc9\explortu.exe"C:\Users\Admin\AppData\Local\Temp\9217037dc9\explortu.exe"2⤵
- Identifies VirtualBox via ACPI registry values (likely anti-VM)
- Checks BIOS information in registry
- Executes dropped EXE
- Identifies Wine through registry keys
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Suspicious behavior: EnumeratesProcesses
PID:1564
-
-
C:\Users\Admin\AppData\Local\Temp\9217037dc9\explortu.exeC:\Users\Admin\AppData\Local\Temp\9217037dc9\explortu.exe1⤵
- Identifies VirtualBox via ACPI registry values (likely anti-VM)
- Checks BIOS information in registry
- Executes dropped EXE
- Identifies Wine through registry keys
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Suspicious behavior: EnumeratesProcesses
PID:3188
-
C:\Users\Admin\AppData\Local\Temp\9217037dc9\explortu.exeC:\Users\Admin\AppData\Local\Temp\9217037dc9\explortu.exe1⤵
- Identifies VirtualBox via ACPI registry values (likely anti-VM)
- Checks BIOS information in registry
- Executes dropped EXE
- Identifies Wine through registry keys
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Suspicious behavior: EnumeratesProcesses
PID:2004
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
- Path C:\Users\Admin\AppData\Local\Temp\9217037dc9\explortu.exe
- Size 1.8MB
- SHA256 372b4be259b04e5c12c28cc81cdbd37dae860313a7304e5609e3b15ac9dae12a
- MD5 a9c5337470f1bab3fcabd70cb075df6d
- SHA1 a3fe847ea273cf5d194d624516d16c3772f7f762
- SHA512 e3c1d339fb10314d61c94d8a6cb7da71043a66d94c95f7e2458f2435318d694f7782895ebadea870dbc658470b68329fad8c9a61451f438213a7a2e7fda6278b
- SSDEEP 49152:K70kBwxV4JX+CKY1CPVd2oFWpa8AlpvRs:vkBwxV48CKYdo0pGNRs
- MD5 SHA1 SHA512 SSDEEP