Analysis
- max time kernel
150s - max time network
32s - platform
windows7_x64 - resource
win7-20230220-en - resource tags
arch:x64arch:x86image:win7-20230220-enlocale:en-usos:windows7-x64system - submitted
07/03/2023, 12:39
Static task
static1
Behavioral task
behavioral1
Sample
file.exe
Resource
win7-20230220-en
windows7-x64
8 signatures
150 seconds
Behavioral task
behavioral2
Sample
file.exe
Resource
win10v2004-20230220-en
windows10-2004-x64
11 signatures
150 seconds
General
- Target file.exe
- Size 261KB
- Sample230307-pvmtfaaa32
- SHA256 7d4ed405992f3e2bddb0e4401eb3a1c1306474e09ee3b680f006d5967d12756e
- MD5 d928fd4d1871b145f8ac5e522cf4ee10
- SHA1 e508d3cf0c2bca37c0ecb7a415c2fe7ac5e5f3d3
- SHA512 c10bda22063354526ab630551ccf0403c0af7b9452965da992c1f140ea069d8d22cb01b88b478c0b71c6f53d00e974d05838f54bd66e3406dec8a3305811511c
- SSDEEP 3072:qWYs2Lu3IRoHT/3fFG3mkUPWI0n/5JrpXGP3yE1HSx+fF8Py6m9k4PGVoDNb:94L/aL6JplE1ygfD9kKAMNb
- MD5 SHA1 SHA512 SSDEEP
Score
10/10
Malware Config
Extracted
Family
-
smokeloader
Version
-
2020
C2
-
http://host-file-host6.com/
-
http://host-host-file8.com/
rc4.i32
rc4.i32
Signatures
- Detects Smokeloader packer 4 IoCs
resource yara_rule behavioral1/memory/920-56-0x0000000000400000-0x0000000000409000-memory.dmp family_smokeloader behavioral1/memory/1376-57-0x0000000000220000-0x0000000000229000-memory.dmp family_smokeloader behavioral1/memory/920-58-0x0000000000400000-0x0000000000409000-memory.dmp family_smokeloader behavioral1/memory/920-60-0x0000000000400000-0x0000000000409000-memory.dmp family_smokeloader - SmokeLoader
Modular backdoor trojan in use since 2014.
- Suspicious use of SetThreadContext 1 IoCs
description pid Process procid_target PID 1376 set thread context of 920 1376 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 920 file.exe 920 file.exe 1244 Process not Found 1244 Process not Found 1244 Process not Found 1244 Process not Found 1244 Process not Found 1244 Process not Found 1244 Process not Found 1244 Process not Found 1244 Process not Found 1244 Process not Found 1244 Process not Found 1244 Process not Found 1244 Process not Found 1244 Process not Found 1244 Process not Found 1244 Process not Found 1244 Process not Found 1244 Process not Found 1244 Process not Found 1244 Process not Found 1244 Process not Found 1244 Process not Found 1244 Process not Found 1244 Process not Found 1244 Process not Found 1244 Process not Found 1244 Process not Found 1244 Process not Found 1244 Process not Found 1244 Process not Found 1244 Process not Found 1244 Process not Found 1244 Process not Found 1244 Process not Found 1244 Process not Found 1244 Process not Found 1244 Process not Found 1244 Process not Found 1244 Process not Found 1244 Process not Found 1244 Process not Found 1244 Process not Found 1244 Process not Found 1244 Process not Found 1244 Process not Found 1244 Process not Found 1244 Process not Found 1244 Process not Found 1244 Process not Found 1244 Process not Found 1244 Process not Found 1244 Process not Found 1244 Process not Found 1244 Process not Found 1244 Process not Found 1244 Process not Found 1244 Process not Found 1244 Process not Found 1244 Process not Found 1244 Process not Found 1244 Process not Found 1244 Process not Found - Suspicious behavior: GetForegroundWindowSpam 1 IoCs
pid Process 1244 Process not Found - Suspicious behavior: MapViewOfSection 1 IoCs
pid Process 920 file.exe - Suspicious use of WriteProcessMemory 7 IoCs
description pid Process procid_target PID 1376 wrote to memory of 920 1376 file.exe 27 PID 1376 wrote to memory of 920 1376 file.exe 27 PID 1376 wrote to memory of 920 1376 file.exe 27 PID 1376 wrote to memory of 920 1376 file.exe 27 PID 1376 wrote to memory of 920 1376 file.exe 27 PID 1376 wrote to memory of 920 1376 file.exe 27 PID 1376 wrote to memory of 920 1376 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:1376 -
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:920
-