Analysis
- max time kernel
150s - max time network
123s - platform
windows7_x64 - resource
win7-20231020-en - resource tags
- submitted
06/12/2023, 06:39
General
- Target file.exe
- Size 289KB
- Sample231206-hel4mscb87
- SHA256 eb3b78af6ac0d973f1e1582e64f8ec0f34cd445308def5159f97f3bd6edcf151
Malware Config
Extracted
-
smokeloader
-
pub4
Extracted
-
smokeloader
-
2022
-
http://humydrole.com/tmp/index.php
-
http://trunk-co.ru/tmp/index.php
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http://weareelight.com/tmp/index.php
-
http://pirateking.online/tmp/index.php
-
http://piratia.pw/tmp/index.php
-
http://go-piratia.ru/tmp/index.php
Signatures
- SmokeLoader
Modular backdoor trojan in use since 2014.
- Deletes itself 1 IoCs
- Executes dropped EXE 1 IoCs
- Checks SCSI registry key(s) 3 TTPs 6 IoCs
SCSI information is often read in order to detect sandboxing environments.
- Suspicious behavior: EnumeratesProcesses 64 IoCs
- Suspicious behavior: GetForegroundWindowSpam 1 IoCs
- Suspicious behavior: MapViewOfSection 2 IoCs
- Suspicious use of WriteProcessMemory 4 IoCs
- 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\file.exe"C:\Users\Admin\AppData\Local\Temp\file.exe"1⤵
- Checks SCSI registry key(s)
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
-
C:\Windows\system32\taskeng.exetaskeng.exe {8E80E2CC-2BF2-4947-AB91-C37572F3B06A} S-1-5-21-2952504676-3105837840-1406404655-1000:URUOZWGF\Admin:Interactive:[1]1⤵
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Roaming\iefscuiC:\Users\Admin\AppData\Roaming\iefscui2⤵
- Executes dropped EXE
- Checks SCSI registry key(s)
- Suspicious behavior: MapViewOfSection
-
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
iefscui
iefscui
memory/1328-4-0x00000000025A0000-0x00000000025B6000-memory.dmp
memory/1328-16-0x0000000003CE0000-0x0000000003CF6000-memory.dmp
memory/2132-1-0x0000000002C10000-0x0000000002D10000-memory.dmp
memory/2132-2-0x0000000000220000-0x000000000022B000-memory.dmp
memory/2132-3-0x0000000000400000-0x0000000002ABE000-memory.dmp
memory/2132-5-0x0000000000400000-0x0000000002ABE000-memory.dmp
memory/2884-14-0x0000000002C10000-0x0000000002D10000-memory.dmp
memory/2884-15-0x0000000000400000-0x0000000002ABE000-memory.dmp
memory/2884-17-0x0000000000400000-0x0000000002ABE000-memory.dmp