Analysis
- max time kernel
150s - max time network
136s - platform
windows10-2004_x64 - resource
win10v2004-20220812-en - resource tags
- submitted
22/01/2023, 17:15
General
- Target ee91bafa021858d2495d11be79bb66ee.exe
- Size 196KB
- Sample230122-vsj8esgf59
- SHA256 5c4e05a0c7fcaa16fdcb3ce45e19b5706197d53bcc92329f883a0da3ddcbde9c
Malware Config
Signatures
- Detects Smokeloader packer 1 IoCs
- SmokeLoader
Modular backdoor trojan in use since 2014.
- Downloads MZ/PE file
- Executes dropped EXE 1 IoCs
- Checks SCSI registry key(s) 3 TTPs 3 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 19 IoCs
- Suspicious use of WriteProcessMemory 35 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\ee91bafa021858d2495d11be79bb66ee.exe"C:\Users\Admin\AppData\Local\Temp\ee91bafa021858d2495d11be79bb66ee.exe"1⤵
- Checks SCSI registry key(s)
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
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C:\Users\Admin\AppData\Local\Temp\EFB4.exeC:\Users\Admin\AppData\Local\Temp\EFB4.exe1⤵
- Executes dropped EXE
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C:\Windows\SysWOW64\explorer.exeC:\Windows\SysWOW64\explorer.exe1⤵
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C:\Windows\explorer.exeC:\Windows\explorer.exe1⤵
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C:\Windows\SysWOW64\explorer.exeC:\Windows\SysWOW64\explorer.exe1⤵
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C:\Windows\explorer.exeC:\Windows\explorer.exe1⤵
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C:\Windows\SysWOW64\explorer.exeC:\Windows\SysWOW64\explorer.exe1⤵
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C:\Windows\SysWOW64\explorer.exeC:\Windows\SysWOW64\explorer.exe1⤵
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C:\Windows\SysWOW64\explorer.exeC:\Windows\SysWOW64\explorer.exe1⤵
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C:\Windows\explorer.exeC:\Windows\explorer.exe1⤵
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C:\Windows\SysWOW64\explorer.exeC:\Windows\SysWOW64\explorer.exe1⤵
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
EFB4.exe
EFB4.exe
memory/1136-133-0x0000000002D50000-0x0000000002D59000-memory.dmp
memory/1136-134-0x0000000000400000-0x0000000002B9B000-memory.dmp
memory/1136-135-0x0000000000400000-0x0000000002B9B000-memory.dmp
memory/1136-132-0x0000000002E1F000-0x0000000002E32000-memory.dmp
memory/1832-161-0x0000000000800000-0x000000000080B000-memory.dmp
memory/1832-160-0x0000000000810000-0x0000000000816000-memory.dmp
memory/1832-174-0x0000000000810000-0x0000000000816000-memory.dmp
memory/1880-152-0x00000000004F0000-0x00000000004FC000-memory.dmp
memory/1880-171-0x0000000000500000-0x0000000000506000-memory.dmp
memory/1880-151-0x0000000000500000-0x0000000000506000-memory.dmp
memory/2512-167-0x0000000000410000-0x000000000041B000-memory.dmp
memory/2512-166-0x0000000000420000-0x0000000000428000-memory.dmp
memory/2512-176-0x0000000000420000-0x0000000000428000-memory.dmp
memory/2580-158-0x00000000007B0000-0x00000000007B9000-memory.dmp
memory/2580-173-0x00000000007C0000-0x00000000007C5000-memory.dmp
memory/2580-157-0x00000000007C0000-0x00000000007C5000-memory.dmp
memory/2592-143-0x0000000001080000-0x0000000001087000-memory.dmp
memory/2592-144-0x0000000001070000-0x000000000107B000-memory.dmp
memory/2592-168-0x0000000001080000-0x0000000001087000-memory.dmp
memory/3256-154-0x0000000001030000-0x0000000001052000-memory.dmp
memory/3256-155-0x0000000001000000-0x0000000001027000-memory.dmp
memory/3256-172-0x0000000001030000-0x0000000001052000-memory.dmp
memory/3576-150-0x0000000000460000-0x0000000000465000-memory.dmp
memory/3576-148-0x0000000000450000-0x0000000000459000-memory.dmp
memory/3576-170-0x0000000000460000-0x0000000000465000-memory.dmp
memory/3892-147-0x0000000000FC0000-0x0000000000FC9000-memory.dmp
memory/3892-145-0x0000000000FB0000-0x0000000000FBF000-memory.dmp
memory/3892-169-0x0000000000FC0000-0x0000000000FC9000-memory.dmp
memory/4068-164-0x00000000005F0000-0x00000000005FD000-memory.dmp
memory/4068-163-0x0000000000800000-0x0000000000807000-memory.dmp
memory/4068-175-0x0000000000800000-0x0000000000807000-memory.dmp
memory/4932-141-0x00007FF8F2BC0000-0x00007FF8F3681000-memory.dmp
memory/4932-139-0x00000000001F0000-0x00000000001F8000-memory.dmp