Analysis
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max time kernel
151s -
max time network
150s -
platform
windows10-2004_x64 -
resource
win10v2004-20230915-en -
resource tags
arch:x64arch:x86image:win10v2004-20230915-enlocale:en-usos:windows10-2004-x64system -
submitted
15-09-2023 13:19
Static task
static1
Behavioral task
behavioral1
Sample
d20f88b50c4b3b1083499e32d674fb58.exe
Resource
win7-20230831-en
Behavioral task
behavioral2
Sample
d20f88b50c4b3b1083499e32d674fb58.exe
Resource
win10v2004-20230915-en
General
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Target
d20f88b50c4b3b1083499e32d674fb58.exe
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Size
268KB
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MD5
d20f88b50c4b3b1083499e32d674fb58
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SHA1
d41276d90a406273cc748c0dcf648fb2bb965296
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SHA256
2f4140d42063d60f416435b8cc1493588293c7516e25aad65fc6929125b4c7dd
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SHA512
9275c9dc0336a808cde2f776254ac35f9bdab52ace7486dbe7d8427fefcfa6117cfa030c2d2f302bb6ff60f92b9eacfca11deaa2203083857674bcca2a3f4028
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SSDEEP
3072:OnEwxB2mXQ+YJq4I7MqGnohhiEaYpMA7Et4Y+rpuJTY4VBUqsZTwNA:JwxVXQ+Yo4EM6hIY2AE4Y+luZTnjOt
Malware Config
Extracted
smokeloader
up3
Extracted
smokeloader
2020
http://host-file-host6.com/
http://host-host-file8.com/
Signatures
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SmokeLoader
Modular backdoor trojan in use since 2014.
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Executes dropped EXE 2 IoCs
pid Process 4116 wswseuh 208 wswseuh -
Suspicious use of SetThreadContext 2 IoCs
description pid Process procid_target PID 1608 set thread context of 4448 1608 d20f88b50c4b3b1083499e32d674fb58.exe 80 PID 4116 set thread context of 208 4116 wswseuh 85 -
Checks SCSI registry key(s) 3 TTPs 6 IoCs
SCSI information is often read in order to detect sandboxing environments.
description ioc Process Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI d20f88b50c4b3b1083499e32d674fb58.exe Key queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI d20f88b50c4b3b1083499e32d674fb58.exe Key enumerated \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI d20f88b50c4b3b1083499e32d674fb58.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI wswseuh Key queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI wswseuh Key enumerated \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI wswseuh -
Suspicious behavior: EnumeratesProcesses 64 IoCs
pid Process 4448 d20f88b50c4b3b1083499e32d674fb58.exe 4448 d20f88b50c4b3b1083499e32d674fb58.exe 2504 Process not Found 2504 Process not Found 2504 Process not Found 2504 Process not Found 2504 Process not Found 2504 Process not Found 2504 Process not Found 2504 Process not Found 2504 Process not Found 2504 Process not Found 2504 Process not Found 2504 Process not Found 2504 Process not Found 2504 Process not Found 2504 Process not Found 2504 Process not Found 2504 Process not Found 2504 Process not Found 2504 Process not Found 2504 Process not Found 2504 Process not Found 2504 Process not Found 2504 Process not Found 2504 Process not Found 2504 Process not Found 2504 Process not Found 2504 Process not Found 2504 Process not Found 2504 Process not Found 2504 Process not Found 2504 Process not Found 2504 Process not Found 2504 Process not Found 2504 Process not Found 2504 Process not Found 2504 Process not Found 2504 Process not Found 2504 Process not Found 2504 Process not Found 2504 Process not Found 2504 Process not Found 2504 Process not Found 2504 Process not Found 2504 Process not Found 2504 Process not Found 2504 Process not Found 2504 Process not Found 2504 Process not Found 2504 Process not Found 2504 Process not Found 2504 Process not Found 2504 Process not Found 2504 Process not Found 2504 Process not Found 2504 Process not Found 2504 Process not Found 2504 Process not Found 2504 Process not Found 2504 Process not Found 2504 Process not Found 2504 Process not Found 2504 Process not Found -
Suspicious behavior: GetForegroundWindowSpam 1 IoCs
pid Process 2504 Process not Found -
Suspicious behavior: MapViewOfSection 2 IoCs
pid Process 4448 d20f88b50c4b3b1083499e32d674fb58.exe 208 wswseuh -
Suspicious use of AdjustPrivilegeToken 2 IoCs
description pid Process Token: SeShutdownPrivilege 2504 Process not Found Token: SeCreatePagefilePrivilege 2504 Process not Found -
Suspicious use of WriteProcessMemory 12 IoCs
description pid Process procid_target PID 1608 wrote to memory of 4448 1608 d20f88b50c4b3b1083499e32d674fb58.exe 80 PID 1608 wrote to memory of 4448 1608 d20f88b50c4b3b1083499e32d674fb58.exe 80 PID 1608 wrote to memory of 4448 1608 d20f88b50c4b3b1083499e32d674fb58.exe 80 PID 1608 wrote to memory of 4448 1608 d20f88b50c4b3b1083499e32d674fb58.exe 80 PID 1608 wrote to memory of 4448 1608 d20f88b50c4b3b1083499e32d674fb58.exe 80 PID 1608 wrote to memory of 4448 1608 d20f88b50c4b3b1083499e32d674fb58.exe 80 PID 4116 wrote to memory of 208 4116 wswseuh 85 PID 4116 wrote to memory of 208 4116 wswseuh 85 PID 4116 wrote to memory of 208 4116 wswseuh 85 PID 4116 wrote to memory of 208 4116 wswseuh 85 PID 4116 wrote to memory of 208 4116 wswseuh 85 PID 4116 wrote to memory of 208 4116 wswseuh 85 -
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
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C:\Users\Admin\AppData\Local\Temp\d20f88b50c4b3b1083499e32d674fb58.exe"C:\Users\Admin\AppData\Local\Temp\d20f88b50c4b3b1083499e32d674fb58.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:1608 -
C:\Users\Admin\AppData\Local\Temp\d20f88b50c4b3b1083499e32d674fb58.exe"C:\Users\Admin\AppData\Local\Temp\d20f88b50c4b3b1083499e32d674fb58.exe"2⤵
- Checks SCSI registry key(s)
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
PID:4448
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C:\Users\Admin\AppData\Roaming\wswseuhC:\Users\Admin\AppData\Roaming\wswseuh1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:4116 -
C:\Users\Admin\AppData\Roaming\wswseuhC:\Users\Admin\AppData\Roaming\wswseuh2⤵
- Executes dropped EXE
- Checks SCSI registry key(s)
- Suspicious behavior: MapViewOfSection
PID:208
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
268KB
MD5d20f88b50c4b3b1083499e32d674fb58
SHA1d41276d90a406273cc748c0dcf648fb2bb965296
SHA2562f4140d42063d60f416435b8cc1493588293c7516e25aad65fc6929125b4c7dd
SHA5129275c9dc0336a808cde2f776254ac35f9bdab52ace7486dbe7d8427fefcfa6117cfa030c2d2f302bb6ff60f92b9eacfca11deaa2203083857674bcca2a3f4028
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Filesize
268KB
MD5d20f88b50c4b3b1083499e32d674fb58
SHA1d41276d90a406273cc748c0dcf648fb2bb965296
SHA2562f4140d42063d60f416435b8cc1493588293c7516e25aad65fc6929125b4c7dd
SHA5129275c9dc0336a808cde2f776254ac35f9bdab52ace7486dbe7d8427fefcfa6117cfa030c2d2f302bb6ff60f92b9eacfca11deaa2203083857674bcca2a3f4028
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Filesize
268KB
MD5d20f88b50c4b3b1083499e32d674fb58
SHA1d41276d90a406273cc748c0dcf648fb2bb965296
SHA2562f4140d42063d60f416435b8cc1493588293c7516e25aad65fc6929125b4c7dd
SHA5129275c9dc0336a808cde2f776254ac35f9bdab52ace7486dbe7d8427fefcfa6117cfa030c2d2f302bb6ff60f92b9eacfca11deaa2203083857674bcca2a3f4028