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Analysis
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max time kernel
135s -
max time network
182s -
platform
windows7_x64 -
resource
win7-20230220-en -
resource tags
arch:x64arch:x86image:win7-20230220-enlocale:en-usos:windows7-x64system -
submitted
06/05/2023, 21:46
Static task
static1
Behavioral task
behavioral1
Sample
4b849d412245437a6185de355d24799911f08df34a5c77e265c6b7222e84337a.exe
Resource
win7-20230220-en
Behavioral task
behavioral2
Sample
4b849d412245437a6185de355d24799911f08df34a5c77e265c6b7222e84337a.exe
Resource
win10v2004-20230220-en
General
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Target
4b849d412245437a6185de355d24799911f08df34a5c77e265c6b7222e84337a.exe
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Size
3.1MB
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MD5
36538f9861e330d5ac9310418f615bf9
-
SHA1
ab32322f5094133b4f75ab10d63a3705cb2064c8
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SHA256
4b849d412245437a6185de355d24799911f08df34a5c77e265c6b7222e84337a
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SHA512
9c79444bea20258e71e782ebbdeceb71547f5be54764088f6aba0a0062fce3f8277546bd2f294ae040804196a8e41e99d057449f73d4cbfc4d0213eaa12bdb68
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SSDEEP
49152:8DOm/UnwYvirEus6NRwMwyfaQb+Tch+kmqk2ls0Oz4HoJ1c0TrBO8THK6aLhlLFq:8xUwiijeMLfRb+Tirdkt0O8Hybrj6HH
Malware Config
Extracted
laplas
http://45.159.189.33
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api_key
d1a05de376c0be1daa56dfb2715c8a0c5df8a111b8b31decc886df1e48db7c9c
Signatures
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Identifies VirtualBox via ACPI registry values (likely anti-VM) 2 TTPs 2 IoCs
description ioc Process Key opened \REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__ ntlhost.exe Key opened \REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__ 4b849d412245437a6185de355d24799911f08df34a5c77e265c6b7222e84337a.exe -
Checks BIOS information in registry 2 TTPs 4 IoCs
BIOS information is often read in order to detect sandboxing environments.
description ioc Process Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion 4b849d412245437a6185de355d24799911f08df34a5c77e265c6b7222e84337a.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion 4b849d412245437a6185de355d24799911f08df34a5c77e265c6b7222e84337a.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion ntlhost.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion ntlhost.exe -
Executes dropped EXE 1 IoCs
pid Process 1764 ntlhost.exe -
Loads dropped DLL 1 IoCs
pid Process 932 4b849d412245437a6185de355d24799911f08df34a5c77e265c6b7222e84337a.exe -
Adds Run key to start application 2 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-3499517378-2376672570-1134980332-1000\Software\Microsoft\Windows\CurrentVersion\Run\NTSystem = "C:\\Users\\Admin\\AppData\\Roaming\\NTSystem\\ntlhost.exe" 4b849d412245437a6185de355d24799911f08df34a5c77e265c6b7222e84337a.exe -
description ioc Process Key value queried \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA 4b849d412245437a6185de355d24799911f08df34a5c77e265c6b7222e84337a.exe Key value queried \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA ntlhost.exe -
Suspicious use of NtSetInformationThreadHideFromDebugger 2 IoCs
pid Process 932 4b849d412245437a6185de355d24799911f08df34a5c77e265c6b7222e84337a.exe 1764 ntlhost.exe -
GoLang User-Agent 1 IoCs
Uses default user-agent string defined by GoLang HTTP packages.
description flow ioc HTTP User-Agent header 2 Go-http-client/1.1 -
Suspicious use of WriteProcessMemory 3 IoCs
description pid Process procid_target PID 932 wrote to memory of 1764 932 4b849d412245437a6185de355d24799911f08df34a5c77e265c6b7222e84337a.exe 28 PID 932 wrote to memory of 1764 932 4b849d412245437a6185de355d24799911f08df34a5c77e265c6b7222e84337a.exe 28 PID 932 wrote to memory of 1764 932 4b849d412245437a6185de355d24799911f08df34a5c77e265c6b7222e84337a.exe 28
Processes
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C:\Users\Admin\AppData\Local\Temp\4b849d412245437a6185de355d24799911f08df34a5c77e265c6b7222e84337a.exe"C:\Users\Admin\AppData\Local\Temp\4b849d412245437a6185de355d24799911f08df34a5c77e265c6b7222e84337a.exe"1⤵
- Identifies VirtualBox via ACPI registry values (likely anti-VM)
- Checks BIOS information in registry
- Loads dropped DLL
- Adds Run key to start application
- Checks whether UAC is enabled
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Suspicious use of WriteProcessMemory
PID:932 -
C:\Users\Admin\AppData\Roaming\NTSystem\ntlhost.exeC:\Users\Admin\AppData\Roaming\NTSystem\ntlhost.exe2⤵
- Identifies VirtualBox via ACPI registry values (likely anti-VM)
- Checks BIOS information in registry
- Executes dropped EXE
- Checks whether UAC is enabled
- Suspicious use of NtSetInformationThreadHideFromDebugger
PID:1764
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Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
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Filesize
275.6MB
MD54a0df67c42438adb353162aecb6abb26
SHA1abcaae940c703cbc1cb87f7b1efde691a4c88550
SHA2561d9e69170c3f35bff265e4a0a2606578860b08347fc2be6628e7559ac7162c9a
SHA512eab2388708b18560ef65947e3e9fbf114b382f7abf8dd6164fa06977a48ae2bbb05de533d90447bc313a516b06ae3ee0803a1a1c463478dc048fe0f494c35357
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Filesize
273.6MB
MD586006b80c194b71c7b9394966b6b8914
SHA1430dda027e4f27b579dbc9499256548e242a8a82
SHA2569b3921af3a79adcb81c1c2644347bc0420bd9833a8739d3508808806e4a7721f
SHA5125d77e63531a8b4e702f402c3681a4c7d0cf1297bbbad4610532641a002af7007191afcd81aaadddf596de719849219d865f80642f31dc3d5d7e6e5f285ea7553