Analysis
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max time kernel
149s -
max time network
37s -
platform
windows7_x64 -
resource
win7-20230220-en -
resource tags
arch:x64arch:x86image:win7-20230220-enlocale:en-usos:windows7-x64system -
submitted
23-02-2023 12:20
Behavioral task
behavioral1
Sample
30b5426ee9183f43fba9a8a6b6b32b97.exe
Resource
win7-20230220-en
Behavioral task
behavioral2
Sample
30b5426ee9183f43fba9a8a6b6b32b97.exe
Resource
win10v2004-20230220-en
General
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Target
30b5426ee9183f43fba9a8a6b6b32b97.exe
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Size
25KB
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MD5
30b5426ee9183f43fba9a8a6b6b32b97
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SHA1
d0b8cde6d8c38e294ce6275b0f935677b07d2202
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SHA256
e18cf6502122b168dac6c932cd89739e313154ee9b73d6ddd692d4ad990aceb0
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SHA512
adef79c0748b1e8c274f93879c1c068e0d54b88de94fbb01d4d51bd222a6493f8d2cc68f53adab5407bd59249dfa2fdbc8f511bbec3613772591b0ea4d79afaf
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SSDEEP
96:jFQgbeIBVLyrgoJ/sTfNILBevmXR5MMRWnwLoLEk8LfjNiRB4e3T3ew5tvEzNt:jFhyIaUo/sTfNILwEfdRTLat8LLGTvu
Malware Config
Extracted
purecrypter
http://argentum.com.br/well-known/acme-challenge/k/h/d/g/Pjogwzrhh.bmp
Signatures
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Detects Smokeloader packer 3 IoCs
resource yara_rule behavioral1/memory/1544-69-0x0000000000400000-0x0000000000409000-memory.dmp family_smokeloader behavioral1/memory/1544-70-0x0000000000400000-0x0000000000409000-memory.dmp family_smokeloader behavioral1/memory/1544-72-0x0000000000400000-0x0000000000409000-memory.dmp family_smokeloader -
PureCrypter
PureCrypter is a .NET malware loader first seen in early 2021.
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SmokeLoader
Modular backdoor trojan in use since 2014.
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Suspicious use of SetThreadContext 1 IoCs
description pid Process procid_target PID 1676 set thread context of 1544 1676 30b5426ee9183f43fba9a8a6b6b32b97.exe 30 -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
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Checks SCSI registry key(s) 3 TTPs 3 IoCs
SCSI information is often read in order to detect sandboxing environments.
description ioc Process Key queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI 30b5426ee9183f43fba9a8a6b6b32b97.exe Key enumerated \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI 30b5426ee9183f43fba9a8a6b6b32b97.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI 30b5426ee9183f43fba9a8a6b6b32b97.exe -
Suspicious behavior: EnumeratesProcesses 64 IoCs
pid Process 1064 powershell.exe 1544 30b5426ee9183f43fba9a8a6b6b32b97.exe 1544 30b5426ee9183f43fba9a8a6b6b32b97.exe 1208 Process not Found 1208 Process not Found 1208 Process not Found 1208 Process not Found 1208 Process not Found 1208 Process not Found 1208 Process not Found 1208 Process not Found 1208 Process not Found 1208 Process not Found 1208 Process not Found 1208 Process not Found 1208 Process not Found 1208 Process not Found 1208 Process not Found 1208 Process not Found 1208 Process not Found 1208 Process not Found 1208 Process not Found 1208 Process not Found 1208 Process not Found 1208 Process not Found 1208 Process not Found 1208 Process not Found 1208 Process not Found 1208 Process not Found 1208 Process not Found 1208 Process not Found 1208 Process not Found 1208 Process not Found 1208 Process not Found 1208 Process not Found 1208 Process not Found 1208 Process not Found 1208 Process not Found 1208 Process not Found 1208 Process not Found 1208 Process not Found 1208 Process not Found 1208 Process not Found 1208 Process not Found 1208 Process not Found 1208 Process not Found 1208 Process not Found 1208 Process not Found 1208 Process not Found 1208 Process not Found 1208 Process not Found 1208 Process not Found 1208 Process not Found 1208 Process not Found 1208 Process not Found 1208 Process not Found 1208 Process not Found 1208 Process not Found 1208 Process not Found 1208 Process not Found 1208 Process not Found 1208 Process not Found 1208 Process not Found 1208 Process not Found -
Suspicious behavior: GetForegroundWindowSpam 1 IoCs
pid Process 1208 Process not Found -
Suspicious behavior: MapViewOfSection 1 IoCs
pid Process 1544 30b5426ee9183f43fba9a8a6b6b32b97.exe -
Suspicious use of AdjustPrivilegeToken 2 IoCs
description pid Process Token: SeDebugPrivilege 1676 30b5426ee9183f43fba9a8a6b6b32b97.exe Token: SeDebugPrivilege 1064 powershell.exe -
Suspicious use of WriteProcessMemory 11 IoCs
description pid Process procid_target PID 1676 wrote to memory of 1064 1676 30b5426ee9183f43fba9a8a6b6b32b97.exe 28 PID 1676 wrote to memory of 1064 1676 30b5426ee9183f43fba9a8a6b6b32b97.exe 28 PID 1676 wrote to memory of 1064 1676 30b5426ee9183f43fba9a8a6b6b32b97.exe 28 PID 1676 wrote to memory of 1064 1676 30b5426ee9183f43fba9a8a6b6b32b97.exe 28 PID 1676 wrote to memory of 1544 1676 30b5426ee9183f43fba9a8a6b6b32b97.exe 30 PID 1676 wrote to memory of 1544 1676 30b5426ee9183f43fba9a8a6b6b32b97.exe 30 PID 1676 wrote to memory of 1544 1676 30b5426ee9183f43fba9a8a6b6b32b97.exe 30 PID 1676 wrote to memory of 1544 1676 30b5426ee9183f43fba9a8a6b6b32b97.exe 30 PID 1676 wrote to memory of 1544 1676 30b5426ee9183f43fba9a8a6b6b32b97.exe 30 PID 1676 wrote to memory of 1544 1676 30b5426ee9183f43fba9a8a6b6b32b97.exe 30 PID 1676 wrote to memory of 1544 1676 30b5426ee9183f43fba9a8a6b6b32b97.exe 30
Processes
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C:\Users\Admin\AppData\Local\Temp\30b5426ee9183f43fba9a8a6b6b32b97.exe"C:\Users\Admin\AppData\Local\Temp\30b5426ee9183f43fba9a8a6b6b32b97.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1676 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ENC cwB0AGEAcgB0AC0AcwBsAGUAZQBwACAALQBzAGUAYwBvAG4AZABzACAAMgAwAA==2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:1064
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C:\Users\Admin\AppData\Local\Temp\30b5426ee9183f43fba9a8a6b6b32b97.exeC:\Users\Admin\AppData\Local\Temp\30b5426ee9183f43fba9a8a6b6b32b97.exe2⤵
- Checks SCSI registry key(s)
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
PID:1544
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