Analysis
- max time kernel
150s - max time network
154s - platform
windows10-2004_x64 - resource
win10v2004-20231127-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
-
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.
- Modifies registry class 3 IoCs
- Suspicious behavior: EnumeratesProcesses 64 IoCs
- Suspicious behavior: GetForegroundWindowSpam 1 IoCs
- Suspicious behavior: MapViewOfSection 2 IoCs
- Suspicious use of AdjustPrivilegeToken 11 IoCs
- Suspicious use of FindShellTrayWindow 2 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\Roaming\jcrsvjdC:\Users\Admin\AppData\Roaming\jcrsvjd1⤵
- Executes dropped EXE
- Checks SCSI registry key(s)
- Suspicious behavior: MapViewOfSection
-
C:\Windows\system32\rundll32.exe"C:\Windows\system32\rundll32.exe" "C:\Windows\SYSTEM32\EDGEHTML.dll",#141 Microsoft.VCLibs.140.00_8wekyb3d8bbwe1⤵
-
C:\Windows\System32\svchost.exeC:\Windows\System32\svchost.exe -k UnistackSvcGroup1⤵
- Suspicious use of AdjustPrivilegeToken
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
jcrsvjd
jcrsvjd
memory/1224-21-0x0000020907B90000-0x0000020907BA0000-memory.dmp
memory/1224-57-0x0000020910140000-0x0000020910141000-memory.dmp
memory/1224-56-0x0000020910030000-0x0000020910031000-memory.dmp
memory/1224-55-0x0000020910030000-0x0000020910031000-memory.dmp
memory/1224-53-0x0000020910000000-0x0000020910001000-memory.dmp
memory/1224-37-0x0000020907C90000-0x0000020907CA0000-memory.dmp
memory/3372-4-0x0000000001570000-0x0000000001586000-memory.dmp
memory/3372-16-0x0000000003250000-0x0000000003266000-memory.dmp
memory/3712-15-0x0000000000400000-0x0000000002ABE000-memory.dmp
memory/3712-19-0x0000000000400000-0x0000000002ABE000-memory.dmp
memory/3712-14-0x0000000002D80000-0x0000000002E80000-memory.dmp
memory/4568-1-0x0000000002D70000-0x0000000002E70000-memory.dmp
memory/4568-5-0x0000000000400000-0x0000000002ABE000-memory.dmp
memory/4568-3-0x0000000000400000-0x0000000002ABE000-memory.dmp
memory/4568-2-0x0000000002D60000-0x0000000002D6B000-memory.dmp