Analysis
- max time kernel
150s - max time network
152s - platform
windows10-2004_x64 - resource
win10v2004-20221111-en - resource tags
arch:x64arch:x86image:win10v2004-20221111-enlocale:en-usos:windows10-2004-x64system - submitted
07/01/2023, 01:42
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
win10v2004-20221111-en
windows10-2004-x64
8 signatures
150 seconds
General
- Target file.exe
- Size 300KB
- Sample230107-b4nv7sce36
- SHA256 0270eec83cb5109e7502f87cb4b0266efa741af1eb2ff8d2eae12e62e1b4a42a
- MD5 47231192c6dd13cac6bed240f101e7bc
- SHA1 ab9ed180921aad71c3166e223ec72c70ebaf7f21
- SHA512 7e3f9517b9f52f8bff5a8f8039ae1749aaa9156f6caafff971324cf521e750e7b5a8ad8986bcd15c04388e061103b562faf2334fe4d95f1eddf6ccc07128652d
- SSDEEP 3072:tzXVLooJX4S5V4sBZY27NQqMrPDXSgh0rfexYHLr3cC9IXfWHgqvRN0BJ1:xVLo4X449BZTNdCDhELr3Gf+930BJ
- MD5 SHA1 SHA512 SSDEEP
Score
10/10
Malware Config
Signatures
- Detects Smokeloader packer 4 IoCs
resource yara_rule behavioral2/memory/2340-133-0x0000000000400000-0x0000000000409000-memory.dmp family_smokeloader behavioral2/memory/4276-135-0x0000000002E90000-0x0000000002E99000-memory.dmp family_smokeloader behavioral2/memory/2340-136-0x0000000000400000-0x0000000000409000-memory.dmp family_smokeloader behavioral2/memory/2340-137-0x0000000000400000-0x0000000000409000-memory.dmp family_smokeloader - SmokeLoader
Modular backdoor trojan in use since 2014.
- Suspicious use of SetThreadContext 1 IoCs
description pid Process procid_target PID 4276 set thread context of 2340 4276 file.exe 84 - 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 2340 file.exe 2340 file.exe 372 Process not Found 372 Process not Found 372 Process not Found 372 Process not Found 372 Process not Found 372 Process not Found 372 Process not Found 372 Process not Found 372 Process not Found 372 Process not Found 372 Process not Found 372 Process not Found 372 Process not Found 372 Process not Found 372 Process not Found 372 Process not Found 372 Process not Found 372 Process not Found 372 Process not Found 372 Process not Found 372 Process not Found 372 Process not Found 372 Process not Found 372 Process not Found 372 Process not Found 372 Process not Found 372 Process not Found 372 Process not Found 372 Process not Found 372 Process not Found 372 Process not Found 372 Process not Found 372 Process not Found 372 Process not Found 372 Process not Found 372 Process not Found 372 Process not Found 372 Process not Found 372 Process not Found 372 Process not Found 372 Process not Found 372 Process not Found 372 Process not Found 372 Process not Found 372 Process not Found 372 Process not Found 372 Process not Found 372 Process not Found 372 Process not Found 372 Process not Found 372 Process not Found 372 Process not Found 372 Process not Found 372 Process not Found 372 Process not Found 372 Process not Found 372 Process not Found 372 Process not Found 372 Process not Found 372 Process not Found 372 Process not Found 372 Process not Found - Suspicious behavior: GetForegroundWindowSpam 1 IoCs
pid Process 372 Process not Found - Suspicious behavior: MapViewOfSection 1 IoCs
pid Process 2340 file.exe - Suspicious use of WriteProcessMemory 6 IoCs
description pid Process procid_target PID 4276 wrote to memory of 2340 4276 file.exe 84 PID 4276 wrote to memory of 2340 4276 file.exe 84 PID 4276 wrote to memory of 2340 4276 file.exe 84 PID 4276 wrote to memory of 2340 4276 file.exe 84 PID 4276 wrote to memory of 2340 4276 file.exe 84 PID 4276 wrote to memory of 2340 4276 file.exe 84
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:4276 -
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:2340
-