Analysis
- max time kernel
246s - max time network
342s - platform
windows10-2004_x64 - resource
win10v2004-20221111-en - resource tags
arch:x64arch:x86image:win10v2004-20221111-enlocale:en-usos:windows10-2004-x64system - submitted
12/02/2023, 00:55
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
9 signatures
150 seconds
General
- Target file.exe
- Size 196KB
- Sample230212-a9wbsshb38
- SHA256 a81f478a99eaf2884fc897843f4b5910f9ae1faf65d01465218fdac4492fa432
- MD5 b9c82d6f88eeeca3dffd3cf354a945fc
- SHA1 b47f7d20e01676a13e7185d2b7b765111e5639b3
- SHA512 be78c35b55b85b47ecf92401af57546ecb82efc6f5da532c14d66caa9d056433e5d8bdf2349f5ac9e393c22aafae73ef30c26c24352a54fd87c868f8243f9e21
- SSDEEP 3072:2jqG7+0JuoZj5C1jdljr781+PvHrzNQv4rtG:2GiRc1Z5r7fPvHrzKv4r
- MD5 SHA1 SHA512 SSDEEP
Score
10/10
Malware Config
Signatures
- Detects Smokeloader packer 4 IoCs
resource yara_rule behavioral2/memory/2712-133-0x0000000000400000-0x0000000000409000-memory.dmp family_smokeloader behavioral2/memory/876-135-0x00000000024C0000-0x00000000024C9000-memory.dmp family_smokeloader behavioral2/memory/2712-136-0x0000000000400000-0x0000000000409000-memory.dmp family_smokeloader behavioral2/memory/2712-137-0x0000000000400000-0x0000000000409000-memory.dmp family_smokeloader - SmokeLoader
Modular backdoor trojan in use since 2014.
- Suspicious use of SetThreadContext 1 IoCs
description pid Process procid_target PID 876 set thread context of 2712 876 file.exe 78 - 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 2712 file.exe 2712 file.exe 2728 Process not Found 2728 Process not Found 2728 Process not Found 2728 Process not Found 2728 Process not Found 2728 Process not Found 2728 Process not Found 2728 Process not Found 2728 Process not Found 2728 Process not Found 2728 Process not Found 2728 Process not Found 2728 Process not Found 2728 Process not Found 2728 Process not Found 2728 Process not Found 2728 Process not Found 2728 Process not Found 2728 Process not Found 2728 Process not Found 2728 Process not Found 2728 Process not Found 2728 Process not Found 2728 Process not Found 2728 Process not Found 2728 Process not Found 2728 Process not Found 2728 Process not Found 2728 Process not Found 2728 Process not Found 2728 Process not Found 2728 Process not Found 2728 Process not Found 2728 Process not Found 2728 Process not Found 2728 Process not Found 2728 Process not Found 2728 Process not Found 2728 Process not Found 2728 Process not Found 2728 Process not Found 2728 Process not Found 2728 Process not Found 2728 Process not Found 2728 Process not Found 2728 Process not Found 2728 Process not Found 2728 Process not Found 2728 Process not Found 2728 Process not Found 2728 Process not Found 2728 Process not Found 2728 Process not Found 2728 Process not Found 2728 Process not Found 2728 Process not Found 2728 Process not Found 2728 Process not Found 2728 Process not Found 2728 Process not Found 2728 Process not Found 2728 Process not Found - Suspicious behavior: GetForegroundWindowSpam 1 IoCs
pid Process 2728 Process not Found - Suspicious behavior: MapViewOfSection 1 IoCs
pid Process 2712 file.exe - Suspicious use of AdjustPrivilegeToken 2 IoCs
description pid Process Token: SeShutdownPrivilege 2728 Process not Found Token: SeCreatePagefilePrivilege 2728 Process not Found - Suspicious use of WriteProcessMemory 6 IoCs
description pid Process procid_target PID 876 wrote to memory of 2712 876 file.exe 78 PID 876 wrote to memory of 2712 876 file.exe 78 PID 876 wrote to memory of 2712 876 file.exe 78 PID 876 wrote to memory of 2712 876 file.exe 78 PID 876 wrote to memory of 2712 876 file.exe 78 PID 876 wrote to memory of 2712 876 file.exe 78
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:876 -
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:2712
-