Analysis
- max time kernel
152s - max time network
157s - platform
windows10-2004_x64 - resource
win10v2004-20231215-en - resource tags
- submitted
01/02/2024, 10:35
General
- Target file.exe
- Size 188KB
- Sample240201-mmndwsdacq
- SHA256 96845909bbac1b9dc17b3561090872738015abfce91bc5217c367dc2c1327f20
Malware Config
Extracted
-
smokeloader
-
pub3
Extracted
-
smokeloader
-
2022
-
http://sjyey.com/tmp/index.php
-
http://babonwo.ru/tmp/index.php
-
http://mth.com.ua/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.
- Downloads MZ/PE file
- Deletes itself 1 IoCs
- Drops startup file 1 IoCs
- Executes dropped EXE 2 IoCs
- Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
- Program crash 1 IoCs
- Checks SCSI registry key(s) 3 TTPs 3 IoCs
SCSI information is often read in order to detect sandboxing environments.
- Suspicious behavior: AddClipboardFormatListener 1 IoCs
- Suspicious behavior: EnumeratesProcesses 64 IoCs
- Suspicious behavior: MapViewOfSection 1 IoCs
- Suspicious use of AdjustPrivilegeToken 2 IoCs
- Suspicious use of WriteProcessMemory 6 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:\Users\Admin\AppData\Local\Temp\B83F.exeC:\Users\Admin\AppData\Local\Temp\B83F.exe1⤵
- Drops startup file
- Executes dropped EXE
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Roaming\Smart Clock\SmartClock.exe"C:\Users\Admin\AppData\Roaming\Smart Clock\SmartClock.exe"2⤵
- Executes dropped EXE
- Suspicious behavior: AddClipboardFormatListener
-
-
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 3792 -s 10002⤵
- Program crash
-
-
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 460 -p 3792 -ip 37921⤵
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
B83F.exe
memory/8-36-0x0000000002E00000-0x0000000002F00000-memory.dmp
memory/8-32-0x0000000000400000-0x0000000002B72000-memory.dmp
memory/8-30-0x0000000004800000-0x0000000004891000-memory.dmp
memory/8-29-0x0000000002E00000-0x0000000002F00000-memory.dmp
memory/3512-4-0x00000000022A0000-0x00000000022B6000-memory.dmp
memory/3792-18-0x0000000002C90000-0x0000000002D90000-memory.dmp
memory/3792-19-0x0000000004780000-0x0000000004811000-memory.dmp
memory/3792-21-0x0000000000400000-0x0000000002B72000-memory.dmp
memory/3792-31-0x0000000000400000-0x0000000002B72000-memory.dmp
memory/5068-8-0x0000000004710000-0x000000000471B000-memory.dmp
memory/5068-5-0x0000000000400000-0x0000000002B07000-memory.dmp
memory/5068-1-0x0000000002C70000-0x0000000002D70000-memory.dmp
memory/5068-3-0x0000000000400000-0x0000000002B07000-memory.dmp
memory/5068-2-0x0000000004710000-0x000000000471B000-memory.dmp