Analysis
- max time kernel
151s - max time network
103s - platform
windows10-2004_x64 - resource
win10v2004-20230221-en - resource tags
arch:x64arch:x86image:win10v2004-20230221-enlocale:en-usos:windows10-2004-x64system - submitted
05/04/2023, 01:44
Static task
static1
Behavioral task
behavioral1
Sample
a83786ef9eb326c03f65bb250afd809c.exe
Resource
win7-20230220-en
windows7-x64
7 signatures
150 seconds
Behavioral task
behavioral2
Sample
a83786ef9eb326c03f65bb250afd809c.exe
Resource
win10v2004-20230221-en
windows10-2004-x64
8 signatures
150 seconds
General
- Target a83786ef9eb326c03f65bb250afd809c.exe
- Size 325KB
- Sample230405-b5tsvada91
- SHA256 3750283e9abf1a4d7d11cd47e0464fe9e27af3e823f1dfd9272a51bacf424bce
- MD5 a83786ef9eb326c03f65bb250afd809c
- SHA1 eeae8d6dbcb6cb8b80a4c5722fa976291eaa99b7
- SHA512 7f972c910bae9dc6c1d4edd2d55683c0c7e87b3d290efa8f30b52899d2a247c6ba6e24814aae534c7d4735eb241b0ecd65b03f2d61858a68c4db386f75b51d85
- SSDEEP 3072:pJeEDJvx63iMTqu0+hupmNHR4kFyguVDuhYgguJk57jY1BeiZW3QH8EP:pzVvxI9T/xpgzDudguu7jYn+u
- MD5 SHA1 SHA512 SSDEEP
Score
10/10
Malware Config
Extracted
Family
-
smokeloader
Botnet
-
pub2
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 2320 set thread context of 3088 2320 a83786ef9eb326c03f65bb250afd809c.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 a83786ef9eb326c03f65bb250afd809c.exe Key queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI a83786ef9eb326c03f65bb250afd809c.exe Key enumerated \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI a83786ef9eb326c03f65bb250afd809c.exe - Suspicious behavior: EnumeratesProcesses 64 IoCs
pid Process 3088 a83786ef9eb326c03f65bb250afd809c.exe 3088 a83786ef9eb326c03f65bb250afd809c.exe 2560 Process not Found 2560 Process not Found 2560 Process not Found 2560 Process not Found 2560 Process not Found 2560 Process not Found 2560 Process not Found 2560 Process not Found 2560 Process not Found 2560 Process not Found 2560 Process not Found 2560 Process not Found 2560 Process not Found 2560 Process not Found 2560 Process not Found 2560 Process not Found 2560 Process not Found 2560 Process not Found 2560 Process not Found 2560 Process not Found 2560 Process not Found 2560 Process not Found 2560 Process not Found 2560 Process not Found 2560 Process not Found 2560 Process not Found 2560 Process not Found 2560 Process not Found 2560 Process not Found 2560 Process not Found 2560 Process not Found 2560 Process not Found 2560 Process not Found 2560 Process not Found 2560 Process not Found 2560 Process not Found 2560 Process not Found 2560 Process not Found 2560 Process not Found 2560 Process not Found 2560 Process not Found 2560 Process not Found 2560 Process not Found 2560 Process not Found 2560 Process not Found 2560 Process not Found 2560 Process not Found 2560 Process not Found 2560 Process not Found 2560 Process not Found 2560 Process not Found 2560 Process not Found 2560 Process not Found 2560 Process not Found 2560 Process not Found 2560 Process not Found 2560 Process not Found 2560 Process not Found 2560 Process not Found 2560 Process not Found 2560 Process not Found 2560 Process not Found - Suspicious behavior: GetForegroundWindowSpam 1 IoCs
pid Process 2560 Process not Found - Suspicious behavior: MapViewOfSection 1 IoCs
pid Process 3088 a83786ef9eb326c03f65bb250afd809c.exe - Suspicious use of WriteProcessMemory 6 IoCs
description pid Process procid_target PID 2320 wrote to memory of 3088 2320 a83786ef9eb326c03f65bb250afd809c.exe 82 PID 2320 wrote to memory of 3088 2320 a83786ef9eb326c03f65bb250afd809c.exe 82 PID 2320 wrote to memory of 3088 2320 a83786ef9eb326c03f65bb250afd809c.exe 82 PID 2320 wrote to memory of 3088 2320 a83786ef9eb326c03f65bb250afd809c.exe 82 PID 2320 wrote to memory of 3088 2320 a83786ef9eb326c03f65bb250afd809c.exe 82 PID 2320 wrote to memory of 3088 2320 a83786ef9eb326c03f65bb250afd809c.exe 82 - 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\a83786ef9eb326c03f65bb250afd809c.exe"C:\Users\Admin\AppData\Local\Temp\a83786ef9eb326c03f65bb250afd809c.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:2320 -
C:\Users\Admin\AppData\Local\Temp\a83786ef9eb326c03f65bb250afd809c.exe"C:\Users\Admin\AppData\Local\Temp\a83786ef9eb326c03f65bb250afd809c.exe"2⤵
- Checks SCSI registry key(s)
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
PID:3088
-