Analysis
- max time kernel
300s - max time network
127s - platform
windows7_x64 - resource
win7-20230831-en - resource tags
- submitted
22/09/2023, 04:16
General
- Target 40c624a1492477b0ed0e5c704447d95f728dfe41b7e857cd1c5018e8d3b3df65.exe
- Size 294KB
- Sample230922-ev43lsch2y
- SHA256 40c624a1492477b0ed0e5c704447d95f728dfe41b7e857cd1c5018e8d3b3df65
Malware Config
Extracted
-
smokeloader
-
pub1
Extracted
-
smokeloader
-
2022
-
http://gudintas.at/tmp/
-
http://pik96.ru/tmp/
-
http://rosatiauto.com/tmp/
-
http://kingpirate.ru/tmp/
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 AdjustPrivilegeToken 1 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\40c624a1492477b0ed0e5c704447d95f728dfe41b7e857cd1c5018e8d3b3df65.exe"C:\Users\Admin\AppData\Local\Temp\40c624a1492477b0ed0e5c704447d95f728dfe41b7e857cd1c5018e8d3b3df65.exe"1⤵
- Checks SCSI registry key(s)
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
-
C:\Windows\system32\taskeng.exetaskeng.exe {87102147-F08A-41D2-BA4F-08EBAA4C7441} S-1-5-21-3185155662-718608226-894467740-1000:YETUIZPU\Admin:Interactive:[1]1⤵
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Roaming\wjwceubC:\Users\Admin\AppData\Roaming\wjwceub2⤵
- Executes dropped EXE
- Checks SCSI registry key(s)
- Suspicious behavior: MapViewOfSection
-
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
wjwceub
wjwceub
memory/1232-13-0x000007FF511F0000-0x000007FF511FA000-memory.dmp
memory/1232-4-0x0000000002910000-0x0000000002926000-memory.dmp
memory/1232-12-0x000007FEF5AA0000-0x000007FEF5BE3000-memory.dmp
memory/1232-19-0x0000000002A10000-0x0000000002A26000-memory.dmp
memory/1976-5-0x0000000000400000-0x0000000000718000-memory.dmp
memory/1976-8-0x0000000000220000-0x0000000000229000-memory.dmp
memory/1976-1-0x00000000008A0000-0x00000000009A0000-memory.dmp
memory/1976-3-0x0000000000400000-0x0000000000718000-memory.dmp
memory/1976-2-0x0000000000220000-0x0000000000229000-memory.dmp
memory/2520-17-0x00000000007E0000-0x00000000008E0000-memory.dmp
memory/2520-18-0x0000000000400000-0x0000000000718000-memory.dmp
memory/2520-20-0x0000000000400000-0x0000000000718000-memory.dmp