Analysis
- max time kernel
174s - max time network
179s - platform
windows10-2004_x64 - resource
win10v2004-20220812-en - resource tags
arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system - submitted
27/08/2022, 00:36
Static task
static1
Behavioral task
behavioral1
Sample
bc9eb5c65e1a00762e964a8fd9dba70d.exe
Resource
win7-20220812-en
windows7-x64
7 signatures
150 seconds
Behavioral task
behavioral2
Sample
bc9eb5c65e1a00762e964a8fd9dba70d.exe
Resource
win10v2004-20220812-en
windows10-2004-x64
8 signatures
150 seconds
General
- Target bc9eb5c65e1a00762e964a8fd9dba70d.exe
- Size 325KB
- Sample220827-axyamabfel
- SHA256 fef81fdda5376af461bac04d9a7f5f460fa3fb7b1b85cae9a039b626b50f1fbb
- MD5 bc9eb5c65e1a00762e964a8fd9dba70d
- SHA1 a33cb5540ef9b7b0f2aff1335684b533d8e1fb34
- SHA512 f53dae77a68fd132a4f4b642fd088edcad272d7cd96d2da05e292659f32b24cb97f02abb3c6618c3f39822909e581b463391aefa187a9d3c46c99aed77ae7f29
- SSDEEP 6144:fB1lksP5sONIK/9nX/RjJZkzOn7Jb+OdsA:p1dP5FSK/9njZ+OnNb+ws
- MD5 SHA1 SHA512 SSDEEP
Score
10/10
Malware Config
Signatures
- Detects Smokeloader packer 4 IoCs
resource yara_rule behavioral2/memory/1664-134-0x0000000000400000-0x0000000000409000-memory.dmp family_smokeloader behavioral2/memory/2548-135-0x0000000002590000-0x0000000002599000-memory.dmp family_smokeloader behavioral2/memory/1664-136-0x0000000000400000-0x0000000000409000-memory.dmp family_smokeloader behavioral2/memory/1664-138-0x0000000000400000-0x0000000000409000-memory.dmp family_smokeloader - SmokeLoader
Modular backdoor trojan in use since 2014.
- Suspicious use of SetThreadContext 1 IoCs
description pid Process procid_target PID 2548 set thread context of 1664 2548 bc9eb5c65e1a00762e964a8fd9dba70d.exe 82 - 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 bc9eb5c65e1a00762e964a8fd9dba70d.exe Key queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI bc9eb5c65e1a00762e964a8fd9dba70d.exe Key enumerated \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI bc9eb5c65e1a00762e964a8fd9dba70d.exe - Suspicious behavior: EnumeratesProcesses 64 IoCs
pid Process 1664 bc9eb5c65e1a00762e964a8fd9dba70d.exe 1664 bc9eb5c65e1a00762e964a8fd9dba70d.exe 2720 Process not Found 2720 Process not Found 2720 Process not Found 2720 Process not Found 2720 Process not Found 2720 Process not Found 2720 Process not Found 2720 Process not Found 2720 Process not Found 2720 Process not Found 2720 Process not Found 2720 Process not Found 2720 Process not Found 2720 Process not Found 2720 Process not Found 2720 Process not Found 2720 Process not Found 2720 Process not Found 2720 Process not Found 2720 Process not Found 2720 Process not Found 2720 Process not Found 2720 Process not Found 2720 Process not Found 2720 Process not Found 2720 Process not Found 2720 Process not Found 2720 Process not Found 2720 Process not Found 2720 Process not Found 2720 Process not Found 2720 Process not Found 2720 Process not Found 2720 Process not Found 2720 Process not Found 2720 Process not Found 2720 Process not Found 2720 Process not Found 2720 Process not Found 2720 Process not Found 2720 Process not Found 2720 Process not Found 2720 Process not Found 2720 Process not Found 2720 Process not Found 2720 Process not Found 2720 Process not Found 2720 Process not Found 2720 Process not Found 2720 Process not Found 2720 Process not Found 2720 Process not Found 2720 Process not Found 2720 Process not Found 2720 Process not Found 2720 Process not Found 2720 Process not Found 2720 Process not Found 2720 Process not Found 2720 Process not Found 2720 Process not Found 2720 Process not Found - Suspicious behavior: GetForegroundWindowSpam 1 IoCs
pid Process 2720 Process not Found - Suspicious behavior: MapViewOfSection 1 IoCs
pid Process 1664 bc9eb5c65e1a00762e964a8fd9dba70d.exe - Suspicious use of WriteProcessMemory 6 IoCs
description pid Process procid_target PID 2548 wrote to memory of 1664 2548 bc9eb5c65e1a00762e964a8fd9dba70d.exe 82 PID 2548 wrote to memory of 1664 2548 bc9eb5c65e1a00762e964a8fd9dba70d.exe 82 PID 2548 wrote to memory of 1664 2548 bc9eb5c65e1a00762e964a8fd9dba70d.exe 82 PID 2548 wrote to memory of 1664 2548 bc9eb5c65e1a00762e964a8fd9dba70d.exe 82 PID 2548 wrote to memory of 1664 2548 bc9eb5c65e1a00762e964a8fd9dba70d.exe 82 PID 2548 wrote to memory of 1664 2548 bc9eb5c65e1a00762e964a8fd9dba70d.exe 82
Processes
-
C:\Users\Admin\AppData\Local\Temp\bc9eb5c65e1a00762e964a8fd9dba70d.exe"C:\Users\Admin\AppData\Local\Temp\bc9eb5c65e1a00762e964a8fd9dba70d.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:2548 -
C:\Users\Admin\AppData\Local\Temp\bc9eb5c65e1a00762e964a8fd9dba70d.exe"C:\Users\Admin\AppData\Local\Temp\bc9eb5c65e1a00762e964a8fd9dba70d.exe"2⤵
- Checks SCSI registry key(s)
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
PID:1664
-