Analysis
- max time kernel
153s - max time network
156s - platform
windows10-2004_x64 - resource
win10v2004-20230220-en - resource tags
arch:x64arch:x86image:win10v2004-20230220-enlocale:en-usos:windows10-2004-x64system - submitted
08/04/2023, 11:06
Static task
static1
Behavioral task
behavioral1
Sample
a4338753a6169ced89e760c155cbd5bb.exe
Resource
win7-20230220-en
windows7-x64
7 signatures
150 seconds
Behavioral task
behavioral2
Sample
a4338753a6169ced89e760c155cbd5bb.exe
Resource
win10v2004-20230220-en
windows10-2004-x64
8 signatures
150 seconds
General
- Target a4338753a6169ced89e760c155cbd5bb.exe
- Size 194KB
- Sample230408-m7d1ysda79
- SHA256 4e56ffba23f677694ad3b8a2dfabf17671bd77153e7ff1411ddf473b3a64ff5b
- MD5 a4338753a6169ced89e760c155cbd5bb
- SHA1 44df54ce7318af71a3ec6cd5a8e27a927f9b86c8
- SHA512 fb9dd0461eac1679578bea478734d69980c92af13061165bb48372c58747506112ede83ea58c8caff3bcd6409e8bd4a2f8a0a51ee24f2f256d5cf34a0ce3d444
- SSDEEP 3072:hb8IE8j3xW6RRcybPG8QVz0J82pvqh9CmU2wY/Xun7l5Prb1No:tj3kerGbSJ82pyPUvYmjro
- MD5 SHA1 SHA512 SSDEEP
Score
10/10
Malware Config
Extracted
Family
-
smokeloader
Botnet
-
pub1
Extracted
Family
-
smokeloader
Version
-
2020
C2
-
http://host-file-host6.com/
-
http://host-host-file8.com/
rc4.i32
rc4.i32
Signatures
- SmokeLoader
Modular backdoor trojan in use since 2014.
- Suspicious use of SetThreadContext 1 IoCs
description pid Process procid_target PID 4668 set thread context of 4692 4668 a4338753a6169ced89e760c155cbd5bb.exe 83 - 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 a4338753a6169ced89e760c155cbd5bb.exe Key queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI a4338753a6169ced89e760c155cbd5bb.exe Key enumerated \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI a4338753a6169ced89e760c155cbd5bb.exe - Suspicious behavior: EnumeratesProcesses 64 IoCs
pid Process 4692 a4338753a6169ced89e760c155cbd5bb.exe 4692 a4338753a6169ced89e760c155cbd5bb.exe 664 Process not Found 664 Process not Found 664 Process not Found 664 Process not Found 664 Process not Found 664 Process not Found 664 Process not Found 664 Process not Found 664 Process not Found 664 Process not Found 664 Process not Found 664 Process not Found 664 Process not Found 664 Process not Found 664 Process not Found 664 Process not Found 664 Process not Found 664 Process not Found 664 Process not Found 664 Process not Found 664 Process not Found 664 Process not Found 664 Process not Found 664 Process not Found 664 Process not Found 664 Process not Found 664 Process not Found 664 Process not Found 664 Process not Found 664 Process not Found 664 Process not Found 664 Process not Found 664 Process not Found 664 Process not Found 664 Process not Found 664 Process not Found 664 Process not Found 664 Process not Found 664 Process not Found 664 Process not Found 664 Process not Found 664 Process not Found 664 Process not Found 664 Process not Found 664 Process not Found 664 Process not Found 664 Process not Found 664 Process not Found 664 Process not Found 664 Process not Found 664 Process not Found 664 Process not Found 664 Process not Found 664 Process not Found 664 Process not Found 664 Process not Found 664 Process not Found 664 Process not Found 664 Process not Found 664 Process not Found 664 Process not Found 664 Process not Found - Suspicious behavior: GetForegroundWindowSpam 1 IoCs
pid Process 664 Process not Found - Suspicious behavior: MapViewOfSection 1 IoCs
pid Process 4692 a4338753a6169ced89e760c155cbd5bb.exe - Suspicious use of WriteProcessMemory 6 IoCs
description pid Process procid_target PID 4668 wrote to memory of 4692 4668 a4338753a6169ced89e760c155cbd5bb.exe 83 PID 4668 wrote to memory of 4692 4668 a4338753a6169ced89e760c155cbd5bb.exe 83 PID 4668 wrote to memory of 4692 4668 a4338753a6169ced89e760c155cbd5bb.exe 83 PID 4668 wrote to memory of 4692 4668 a4338753a6169ced89e760c155cbd5bb.exe 83 PID 4668 wrote to memory of 4692 4668 a4338753a6169ced89e760c155cbd5bb.exe 83 PID 4668 wrote to memory of 4692 4668 a4338753a6169ced89e760c155cbd5bb.exe 83 - Uses Task Scheduler COM API 1 TTPs
The Task Scheduler COM API can be used to schedule applications to run on boot or at set times.
Processes
-
C:\Users\Admin\AppData\Local\Temp\a4338753a6169ced89e760c155cbd5bb.exe"C:\Users\Admin\AppData\Local\Temp\a4338753a6169ced89e760c155cbd5bb.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:4668 -
C:\Users\Admin\AppData\Local\Temp\a4338753a6169ced89e760c155cbd5bb.exe"C:\Users\Admin\AppData\Local\Temp\a4338753a6169ced89e760c155cbd5bb.exe"2⤵
- Checks SCSI registry key(s)
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
PID:4692
-