Analysis
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max time kernel
261s -
max time network
266s -
platform
windows10-2004_x64 -
resource
win10v2004-20230220-en -
resource tags
arch:x64arch:x86image:win10v2004-20230220-enlocale:en-usos:windows10-2004-x64system -
submitted
25/04/2023, 08:49
Behavioral task
behavioral1
Sample
test.zip
Resource
win7-20230220-en
Behavioral task
behavioral2
Sample
test.zip
Resource
win10v2004-20230220-en
Behavioral task
behavioral3
Sample
TACTICAL-2.8.8-release.exe
Resource
win7-20230220-en
Behavioral task
behavioral4
Sample
TACTICAL-2.8.8-release.exe
Resource
win10v2004-20230221-en
Behavioral task
behavioral5
Sample
unpacked_version.dll
Resource
win7-20230220-en
Behavioral task
behavioral6
Sample
unpacked_version.dll
Resource
win10v2004-20230220-en
Behavioral task
behavioral7
Sample
version.dll
Resource
win7-20230220-en
General
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Target
version.dll
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Size
2.5MB
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MD5
f9b89da94ed247b257ae8bac48304611
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SHA1
1637a3228884cf84b8f173e4249f2dc86193329a
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SHA256
0f84cac377432974a2232b164bfc7451aa5c4445c878387725df97486531fbcd
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SHA512
1dd2efc11287a1e917e008a826baadb721c68d1a3b8a6e0106306ae6dd85f2adfb782d4eb20d4020160304117ebd115a0c1c4996d84565e232d727eef7212096
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SSDEEP
49152:+FIlhMg37EU2o+SxDOwmzJQNDPFsx/qssluv7eMSlwGkgaUcPqVn:+VEMXSxDOwmzJsPF3sBezlnkKcP4n
Malware Config
Signatures
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Identifies VirtualBox via ACPI registry values (likely anti-VM) 2 TTPs 1 IoCs
description ioc Process Key opened \REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__ rundll32.exe -
Checks BIOS information in registry 2 TTPs 2 IoCs
BIOS information is often read in order to detect sandboxing environments.
description ioc Process Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion rundll32.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion rundll32.exe -
resource yara_rule behavioral8/memory/4928-133-0x0000000075200000-0x0000000075870000-memory.dmp themida behavioral8/memory/4928-134-0x0000000075200000-0x0000000075870000-memory.dmp themida behavioral8/memory/4928-135-0x0000000075200000-0x0000000075870000-memory.dmp themida behavioral8/memory/4928-136-0x0000000075200000-0x0000000075870000-memory.dmp themida behavioral8/memory/4928-137-0x0000000075200000-0x0000000075870000-memory.dmp themida behavioral8/memory/4928-138-0x0000000075200000-0x0000000075870000-memory.dmp themida -
description ioc Process Key value queried \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA rundll32.exe -
Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs
pid Process 4928 rundll32.exe -
Program crash 1 IoCs
pid pid_target Process procid_target 3920 4928 WerFault.exe 84 -
Suspicious use of WriteProcessMemory 3 IoCs
description pid Process procid_target PID 1192 wrote to memory of 4928 1192 rundll32.exe 84 PID 1192 wrote to memory of 4928 1192 rundll32.exe 84 PID 1192 wrote to memory of 4928 1192 rundll32.exe 84
Processes
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C:\Windows\system32\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\version.dll,#11⤵
- Suspicious use of WriteProcessMemory
PID:1192 -
C:\Windows\SysWOW64\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\version.dll,#12⤵
- Identifies VirtualBox via ACPI registry values (likely anti-VM)
- Checks BIOS information in registry
- Checks whether UAC is enabled
- Suspicious use of NtSetInformationThreadHideFromDebugger
PID:4928 -
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 4928 -s 6283⤵
- Program crash
PID:3920
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 436 -p 4928 -ip 49281⤵PID:3880