Analysis
- max time kernel
150s - max time network
45s - platform
windows7_x64 - resource
win7-20220812-en - resource tags
arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system - submitted
06/01/2023, 16:33
Static task
static1
Behavioral task
behavioral1
Sample
file.exe
Resource
win7-20220812-en
windows7-x64
7 signatures
150 seconds
Behavioral task
behavioral2
Sample
file.exe
Resource
win10v2004-20220812-en
windows10-2004-x64
8 signatures
150 seconds
General
- Target file.exe
- Size 312KB
- Sample230106-t2hkhshb95
- SHA256 19d02a606efdd6421ed29197ae330c106c0d2bb2d14d6e3599ee43c41e0b80fd
- MD5 14d716fe252bc2eacf61b5b2afbb72cd
- SHA1 b7a49406713edf084686c8dea3ec32c31d086cfa
- SHA512 698ff21a3cc1fa857e5c9e445b65155f0c331e143b8065a5fdb480e66e4bd5308ccb194bcce59e7b5edeb705a7cae5c645952b845a6f8e4aa609e6c4e6fd8927
- SSDEEP 3072:grXlgDLbWGDLsK5XCN99nrqnw6ea2p9GRXdPOK5twsiS6WwVCaSzd:iILb/4hn+wXnGRXdWKQK67o
- MD5 SHA1 SHA512 SSDEEP
Score
10/10
Malware Config
Signatures
- Detects Smokeloader packer 5 IoCs
resource yara_rule behavioral1/memory/1940-55-0x0000000000402DD8-mapping.dmp family_smokeloader behavioral1/memory/1940-54-0x0000000000400000-0x0000000000409000-memory.dmp family_smokeloader behavioral1/memory/1844-58-0x0000000000220000-0x0000000000229000-memory.dmp family_smokeloader behavioral1/memory/1940-59-0x0000000000400000-0x0000000000409000-memory.dmp family_smokeloader behavioral1/memory/1940-60-0x0000000000400000-0x0000000000409000-memory.dmp family_smokeloader - SmokeLoader
Modular backdoor trojan in use since 2014.
- Suspicious use of SetThreadContext 1 IoCs
description pid Process procid_target PID 1844 set thread context of 1940 1844 file.exe 27 - Checks SCSI registry key(s) 3 TTPs 3 IoCs
SCSI information is often read in order to detect sandboxing environments.
description ioc Process Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI file.exe Key queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI file.exe Key enumerated \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI file.exe - Suspicious behavior: EnumeratesProcesses 64 IoCs
pid Process 1940 file.exe 1940 file.exe 1360 Process not Found 1360 Process not Found 1360 Process not Found 1360 Process not Found 1360 Process not Found 1360 Process not Found 1360 Process not Found 1360 Process not Found 1360 Process not Found 1360 Process not Found 1360 Process not Found 1360 Process not Found 1360 Process not Found 1360 Process not Found 1360 Process not Found 1360 Process not Found 1360 Process not Found 1360 Process not Found 1360 Process not Found 1360 Process not Found 1360 Process not Found 1360 Process not Found 1360 Process not Found 1360 Process not Found 1360 Process not Found 1360 Process not Found 1360 Process not Found 1360 Process not Found 1360 Process not Found 1360 Process not Found 1360 Process not Found 1360 Process not Found 1360 Process not Found 1360 Process not Found 1360 Process not Found 1360 Process not Found 1360 Process not Found 1360 Process not Found 1360 Process not Found 1360 Process not Found 1360 Process not Found 1360 Process not Found 1360 Process not Found 1360 Process not Found 1360 Process not Found 1360 Process not Found 1360 Process not Found 1360 Process not Found 1360 Process not Found 1360 Process not Found 1360 Process not Found 1360 Process not Found 1360 Process not Found 1360 Process not Found 1360 Process not Found 1360 Process not Found 1360 Process not Found 1360 Process not Found 1360 Process not Found 1360 Process not Found 1360 Process not Found 1360 Process not Found - Suspicious behavior: MapViewOfSection 1 IoCs
pid Process 1940 file.exe - Suspicious use of WriteProcessMemory 7 IoCs
description pid Process procid_target PID 1844 wrote to memory of 1940 1844 file.exe 27 PID 1844 wrote to memory of 1940 1844 file.exe 27 PID 1844 wrote to memory of 1940 1844 file.exe 27 PID 1844 wrote to memory of 1940 1844 file.exe 27 PID 1844 wrote to memory of 1940 1844 file.exe 27 PID 1844 wrote to memory of 1940 1844 file.exe 27 PID 1844 wrote to memory of 1940 1844 file.exe 27
Processes
-
C:\Users\Admin\AppData\Local\Temp\file.exe"C:\Users\Admin\AppData\Local\Temp\file.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:1844 -
C:\Users\Admin\AppData\Local\Temp\file.exe"C:\Users\Admin\AppData\Local\Temp\file.exe"2⤵
- Checks SCSI registry key(s)
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
PID:1940
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