Analysis
- max time kernel
142s - max time network
156s - platform
windows10-2004_x64 - resource
win10v2004-20240226-en - resource tags
- submitted
19/05/2024, 14:19
General
- Target file.exe
- Size 210KB
- Sample240519-rmvv7abd55
- SHA256 0d3928bbe9db17a0bd0ce3454c39362b60f26c1613cc8d488f69f81fbf2868c1
Malware Config
Extracted
-
smokeloader
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pub1
Extracted
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smokeloader
-
2022
-
http://trad-einmyus.com/index.php
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http://tradein-myus.com/index.php
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http://trade-inmyus.com/index.php
Signatures
- SmokeLoader
Modular backdoor trojan in use since 2014.
- Modifies Installed Components in the registry 2 TTPs 1 IoCs
- Deletes itself 1 IoCs
- Executes dropped EXE 1 IoCs
- Enumerates connected drives 3 TTPs 2 IoCs
Attempts to read the root path of hard drives other than the default C: drive.
- Legitimate hosting services abused for malware hosting/C2 1 TTPs 3 IoCs
- Checks SCSI registry key(s) 3 TTPs 6 IoCs
SCSI information is often read in order to detect sandboxing environments.
- Modifies registry class 9 IoCs
- Suspicious behavior: EnumeratesProcesses 64 IoCs
- Suspicious behavior: MapViewOfSection 2 IoCs
- Suspicious use of AdjustPrivilegeToken 14 IoCs
- Suspicious use of FindShellTrayWindow 7 IoCs
- Suspicious use of SendNotifyMessage 9 IoCs
- Suspicious use of WriteProcessMemory 8 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
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C:\Windows\system32\cmd.exeC:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\4B6C.bat" "1⤵
- Suspicious use of WriteProcessMemory
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C:\Windows\system32\reg.exereg add "HKEY_CURRENT_USER\Software\clicker\key" /v primary /t REG_DWORD /d 12⤵
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C:\Windows\system32\cmd.exeC:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\5D2F.bat" "1⤵
- Suspicious use of WriteProcessMemory
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C:\Windows\system32\reg.exereg add "HKEY_CURRENT_USER\Software\clicker\key" /v primary /t REG_DWORD /d 12⤵
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C:\Users\Admin\AppData\Roaming\vwihwwwC:\Users\Admin\AppData\Roaming\vwihwww1⤵
- Executes dropped EXE
- Checks SCSI registry key(s)
- Suspicious behavior: MapViewOfSection
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C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --no-appcompat-clear --mojo-platform-channel-handle=4004 --field-trial-handle=2280,i,716736634476467098,11449718822158202904,262144 --variations-seed-version /prefetch:81⤵
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C:\Windows\explorer.exeexplorer.exe1⤵
- Modifies Installed Components in the registry
- Enumerates connected drives
- Modifies registry class
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
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C:\Windows\SystemApps\Microsoft.Windows.StartMenuExperienceHost_cw5n1h2txyewy\StartMenuExperienceHost.exe"C:\Windows\SystemApps\Microsoft.Windows.StartMenuExperienceHost_cw5n1h2txyewy\StartMenuExperienceHost.exe" -ServerName:App.AppXywbrabmsek0gm3tkwpr5kwzbs55tkqay.mca1⤵
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C:\Windows\explorer.exeexplorer.exe1⤵
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C:\Windows\SystemApps\Microsoft.Windows.StartMenuExperienceHost_cw5n1h2txyewy\StartMenuExperienceHost.exe"C:\Windows\SystemApps\Microsoft.Windows.StartMenuExperienceHost_cw5n1h2txyewy\StartMenuExperienceHost.exe" -ServerName:App.AppXywbrabmsek0gm3tkwpr5kwzbs55tkqay.mca1⤵
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
80237EE4964FC9C409AAF55BF996A292_D46D6FA25B74360E1349F9015B5CCE53
80237EE4964FC9C409AAF55BF996A292_D46D6FA25B74360E1349F9015B5CCE53
4B6C.bat
vwihwww
memory/2420-9-0x0000000000400000-0x000000000040B000-memory.dmp
memory/2420-8-0x00000000024F0000-0x00000000024FB000-memory.dmp
memory/2420-5-0x0000000000400000-0x0000000002350000-memory.dmp
memory/2420-1-0x0000000002540000-0x0000000002640000-memory.dmp
memory/2420-3-0x0000000000400000-0x000000000040B000-memory.dmp
memory/2420-2-0x00000000024F0000-0x00000000024FB000-memory.dmp
memory/3268-24-0x0000000000400000-0x0000000002350000-memory.dmp
memory/3268-25-0x0000000000400000-0x0000000002350000-memory.dmp
memory/3268-29-0x0000000000400000-0x0000000002350000-memory.dmp
memory/3336-4-0x00000000033E0000-0x00000000033F6000-memory.dmp
memory/3336-26-0x00000000057F0000-0x0000000005806000-memory.dmp
memory/3336-36-0x0000000001560000-0x0000000001561000-memory.dmp