Analysis
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max time kernel
3s -
max time network
5s -
platform
windows7_x64 -
resource
win7-20231129-en -
resource tags
arch:x64arch:x86image:win7-20231129-enlocale:en-usos:windows7-x64system -
submitted
27-04-2024 17:18
Static task
static1
Behavioral task
behavioral1
Sample
c81600b4e9f10f09529b539f4440225522777ad2d6b58400e4081f3117af7b12.exe
Resource
win7-20231129-en
General
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Target
c81600b4e9f10f09529b539f4440225522777ad2d6b58400e4081f3117af7b12.exe
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Size
1.8MB
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MD5
00d2b75c4c3e234c8576a67d24849596
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SHA1
d5badbb62b2adbcef7e01b3b5bd342d11c09cdb5
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SHA256
c81600b4e9f10f09529b539f4440225522777ad2d6b58400e4081f3117af7b12
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SHA512
0fa5377df174c92130fea3352e60a9571e6724c39fb5397a94d93d84fec3b044ad3935a1ba5ab9243a66d2b5dc02756aeb087118e6a7097b810c01da6813cd7d
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SSDEEP
49152:g3/bnubds8ARZks8cBX2uYpSRFtbq9XHO:gjnu72QRGt
Malware Config
Extracted
amadey
4.20
http://193.233.132.139
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install_dir
5454e6f062
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install_file
explorta.exe
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strings_key
c7a869c5ba1d72480093ec207994e2bf
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url_paths
/sev56rkm/index.php
Signatures
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Identifies VirtualBox via ACPI registry values (likely anti-VM) 2 TTPs 2 IoCs
Processes:
c81600b4e9f10f09529b539f4440225522777ad2d6b58400e4081f3117af7b12.exeexplorta.exedescription ioc Process Key opened \REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__ c81600b4e9f10f09529b539f4440225522777ad2d6b58400e4081f3117af7b12.exe Key opened \REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__ explorta.exe -
Downloads MZ/PE file
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Checks BIOS information in registry 2 TTPs 4 IoCs
BIOS information is often read in order to detect sandboxing environments.
Processes:
c81600b4e9f10f09529b539f4440225522777ad2d6b58400e4081f3117af7b12.exeexplorta.exedescription ioc Process Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion c81600b4e9f10f09529b539f4440225522777ad2d6b58400e4081f3117af7b12.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion c81600b4e9f10f09529b539f4440225522777ad2d6b58400e4081f3117af7b12.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion explorta.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion explorta.exe -
Executes dropped EXE 1 IoCs
Processes:
explorta.exepid Process 2536 explorta.exe -
Identifies Wine through registry keys 2 TTPs 2 IoCs
Wine is a compatibility layer capable of running Windows applications, which can be used as sandboxing environment.
Processes:
c81600b4e9f10f09529b539f4440225522777ad2d6b58400e4081f3117af7b12.exeexplorta.exedescription ioc Process Key opened \REGISTRY\USER\S-1-5-21-3627615824-4061627003-3019543961-1000\Software\Wine c81600b4e9f10f09529b539f4440225522777ad2d6b58400e4081f3117af7b12.exe Key opened \REGISTRY\USER\S-1-5-21-3627615824-4061627003-3019543961-1000\Software\Wine explorta.exe -
Loads dropped DLL 1 IoCs
Processes:
c81600b4e9f10f09529b539f4440225522777ad2d6b58400e4081f3117af7b12.exepid Process 3040 c81600b4e9f10f09529b539f4440225522777ad2d6b58400e4081f3117af7b12.exe -
Suspicious use of NtSetInformationThreadHideFromDebugger 2 IoCs
Processes:
c81600b4e9f10f09529b539f4440225522777ad2d6b58400e4081f3117af7b12.exeexplorta.exepid Process 3040 c81600b4e9f10f09529b539f4440225522777ad2d6b58400e4081f3117af7b12.exe 2536 explorta.exe -
Drops file in Windows directory 1 IoCs
Processes:
c81600b4e9f10f09529b539f4440225522777ad2d6b58400e4081f3117af7b12.exedescription ioc Process File created C:\Windows\Tasks\explorta.job c81600b4e9f10f09529b539f4440225522777ad2d6b58400e4081f3117af7b12.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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Suspicious behavior: EnumeratesProcesses 2 IoCs
Processes:
c81600b4e9f10f09529b539f4440225522777ad2d6b58400e4081f3117af7b12.exeexplorta.exepid Process 3040 c81600b4e9f10f09529b539f4440225522777ad2d6b58400e4081f3117af7b12.exe 2536 explorta.exe -
Suspicious use of FindShellTrayWindow 1 IoCs
Processes:
c81600b4e9f10f09529b539f4440225522777ad2d6b58400e4081f3117af7b12.exepid Process 3040 c81600b4e9f10f09529b539f4440225522777ad2d6b58400e4081f3117af7b12.exe -
Suspicious use of WriteProcessMemory 4 IoCs
Processes:
c81600b4e9f10f09529b539f4440225522777ad2d6b58400e4081f3117af7b12.exedescription pid Process procid_target PID 3040 wrote to memory of 2536 3040 c81600b4e9f10f09529b539f4440225522777ad2d6b58400e4081f3117af7b12.exe 28 PID 3040 wrote to memory of 2536 3040 c81600b4e9f10f09529b539f4440225522777ad2d6b58400e4081f3117af7b12.exe 28 PID 3040 wrote to memory of 2536 3040 c81600b4e9f10f09529b539f4440225522777ad2d6b58400e4081f3117af7b12.exe 28 PID 3040 wrote to memory of 2536 3040 c81600b4e9f10f09529b539f4440225522777ad2d6b58400e4081f3117af7b12.exe 28
Processes
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C:\Users\Admin\AppData\Local\Temp\c81600b4e9f10f09529b539f4440225522777ad2d6b58400e4081f3117af7b12.exe"C:\Users\Admin\AppData\Local\Temp\c81600b4e9f10f09529b539f4440225522777ad2d6b58400e4081f3117af7b12.exe"1⤵
- Identifies VirtualBox via ACPI registry values (likely anti-VM)
- Checks BIOS information in registry
- Identifies Wine through registry keys
- Loads dropped DLL
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Drops file in Windows directory
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of FindShellTrayWindow
- Suspicious use of WriteProcessMemory
PID:3040 -
C:\Users\Admin\AppData\Local\Temp\5454e6f062\explorta.exe"C:\Users\Admin\AppData\Local\Temp\5454e6f062\explorta.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:2536
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
1.8MB
MD500d2b75c4c3e234c8576a67d24849596
SHA1d5badbb62b2adbcef7e01b3b5bd342d11c09cdb5
SHA256c81600b4e9f10f09529b539f4440225522777ad2d6b58400e4081f3117af7b12
SHA5120fa5377df174c92130fea3352e60a9571e6724c39fb5397a94d93d84fec3b044ad3935a1ba5ab9243a66d2b5dc02756aeb087118e6a7097b810c01da6813cd7d