Analysis
- max time kernel
151s - max time network
154s - platform
windows7_x64 - resource
win7v20201028 - submitted
13/11/2020, 15:58
Static task
static1
Behavioral task
behavioral1
Sample
document-1352289798.xlsb
Resource
win7v20201028
windows7_x64
0 signatures
0 seconds
Behavioral task
behavioral2
Sample
document-1352289798.xlsb
Resource
win10v20201028
windows10_x64
0 signatures
0 seconds
General
- Target document-1352289798.xlsb
- Size 291KB
- Sample201113-qmbpt2q3ee
- SHA256 a10597f2f3c9750893535e0f04c0d4c37eeb1ce41e551c0d3ba0ffa7812702a0
- MD5 9263c66878805fd49e5f5f577d1c0b26
- SHA1 419e9049724eab59dd072f594f34e9f17ca73605
- SHA512 440ba8f96885894b122765a18560f0608dfc86557e3fa3955a4f28cb0bb3742a0e4b9487a55506fd308e7b120da2539c04cad741760383bb584176916e0b54d1
- MD5 SHA1 SHA512
Score
10/10
Malware Config
Extracted
Family
-
smokeloader
Version
-
2020
C2
-
http://we11wdsgd.com/
rc4.i32
rc4.i32
Signatures
- SmokeLoader
Modular backdoor trojan in use since 2014.
- Executes dropped EXE 1 IoCs
pid Process 652 fwpxeohi.exe - Loads dropped DLL 3 IoCs
pid Process 1848 EXCEL.EXE 1848 EXCEL.EXE 652 fwpxeohi.exe - Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
- Checks SCSI registry key(s) 3 TTPs 3 IoCs
SCSI information is often read in order to detect sandboxing environments.
description ioc Process Key enumerated \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI fwpxeohi.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI fwpxeohi.exe Key queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI fwpxeohi.exe - Enumerates system info in registry 2 TTPs 1 IoCs
description ioc Process Key opened \REGISTRY\MACHINE\Hardware\Description\System\FloatingPointProcessor EXCEL.EXE -
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-3825035466-2522850611-591511364-1000\Software\Microsoft\Internet Explorer\Toolbar\ShowDiscussionButton = "Yes" EXCEL.EXE Key created \REGISTRY\USER\S-1-5-21-3825035466-2522850611-591511364-1000\Software\Microsoft\Internet Explorer\MenuExt EXCEL.EXE Key created \REGISTRY\USER\S-1-5-21-3825035466-2522850611-591511364-1000\Software\Microsoft\Internet Explorer\MenuExt\Se&nd to OneNote EXCEL.EXE Set value (str) \REGISTRY\USER\S-1-5-21-3825035466-2522850611-591511364-1000\Software\Microsoft\Internet Explorer\MenuExt\Se&nd to OneNote\ = "res://C:\\PROGRA~2\\MICROS~1\\Office14\\ONBttnIE.dll/105" EXCEL.EXE Set value (int) \REGISTRY\USER\S-1-5-21-3825035466-2522850611-591511364-1000\Software\Microsoft\Internet Explorer\MenuExt\E&xport to Microsoft Excel\Contexts = "1" EXCEL.EXE Key created \REGISTRY\USER\S-1-5-21-3825035466-2522850611-591511364-1000\Software\Microsoft\Internet Explorer\Toolbar EXCEL.EXE Key created \REGISTRY\USER\S-1-5-21-3825035466-2522850611-591511364-1000\Software\Microsoft\Internet Explorer\MenuExt\E&xport to Microsoft Excel EXCEL.EXE Set value (str) \REGISTRY\USER\S-1-5-21-3825035466-2522850611-591511364-1000\Software\Microsoft\Internet Explorer\MenuExt\E&xport to Microsoft Excel\ = "res://C:\\PROGRA~2\\MICROS~1\\Office14\\EXCEL.EXE/3000" EXCEL.EXE Set value (int) \REGISTRY\USER\S-1-5-21-3825035466-2522850611-591511364-1000\Software\Microsoft\Internet Explorer\MenuExt\Se&nd to OneNote\Contexts = "55" EXCEL.EXE - Suspicious behavior: AddClipboardFormatListener 1 IoCs
pid Process 1848 EXCEL.EXE - Suspicious behavior: EnumeratesProcesses 546 IoCs
pid Process 652 fwpxeohi.exe 652 fwpxeohi.exe 1276 Process not Found 1276 Process not Found 1276 Process not Found 1276 Process not Found 1276 Process not Found 1276 Process not Found 1276 Process not Found 1276 Process not Found 1276 Process not Found 1276 Process not Found 1276 Process not Found 1276 Process not Found 1276 Process not Found 1276 Process not Found 1276 Process not Found 1276 Process not Found 1276 Process not Found 1276 Process not Found 1276 Process not Found 1276 Process not Found 1276 Process not Found 1276 Process not Found 1276 Process not Found 1276 Process not Found 1276 Process not Found 1276 Process not Found 1276 Process not Found 1276 Process not Found 1276 Process not Found 1276 Process not Found 1276 Process not Found 1276 Process not Found 1276 Process not Found 1276 Process not Found 1276 Process not Found 1276 Process not Found 1276 Process not Found 1276 Process not Found 1276 Process not Found 1276 Process not Found 1276 Process not Found 1276 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Found 1276 Process not Found 1276 Process not Found 1276 Process not Found 1276 Process not Found 1276 Process not Found 1276 Process not Found 1276 Process not Found 1276 Process not Found 1276 Process not Found 1276 Process not Found 1276 Process not Found 1276 Process not Found 1276 Process not Found 1276 Process not Found 1276 Process not Found 1276 Process not Found 1276 Process not Found 1276 Process not Found 1276 Process not Found 1276 Process not Found 1276 Process not Found 1276 Process not Found 1276 Process not Found 1276 Process not Found 1276 Process not Found 1276 Process not Found 1276 Process not Found 1276 Process not Found 1276 Process not Found 1276 Process not Found 1276 Process not Found 1276 Process not Found 1276 Process not Found 1276 Process not Found 1276 Process not Found 1276 Process not Found 1276 Process not Found 1276 Process not Found 1276 Process not Found 1276 Process not Found 1276 Process not Found 1276 Process not Found 1276 Process not Found 1276 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Found 1276 Process not Found 1276 Process not Found 1276 Process not Found 1276 Process not Found 1276 Process not Found 1276 Process not Found 1276 Process not Found 1276 Process not Found 1276 Process not Found 1276 Process not Found 1276 Process not Found 1276 Process not Found 1276 Process not Found 1276 Process not Found 1276 Process not Found 1276 Process not Found 1276 Process not Found 1276 Process not Found 1276 Process not Found 1276 Process not Found 1276 Process not Found 1276 Process not Found 1276 Process not Found 1276 Process not Found 1276 Process not Found 1276 Process not Found 1276 Process not Found 1276 Process not Found 1276 Process not Found 1276 Process not Found 1276 Process not Found 1276 Process not Found 1276 Process not Found 1276 Process not Found 1276 Process not Found 1276 Process not Found 1276 Process not Found 1276 Process not Found 1276 Process not Found 1276 Process not Found 1276 Process not Found 1276 Process not Found 1276 Process not Found 1276 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Found 1276 Process not Found 1276 Process not Found 1276 Process not Found 1276 Process not Found 1276 Process not Found 1276 Process not Found 1276 Process not Found 1276 Process not Found 1276 Process not Found 1276 Process not Found 1276 Process not Found 1276 Process not Found 1276 Process not Found 1276 Process not Found 1276 Process not Found 1276 Process not Found 1276 Process not Found 1276 Process not Found 1276 Process not Found 1276 Process not Found 1276 Process not Found 1276 Process not Found 1276 Process not Found 1276 Process not Found 1276 Process not Found 1276 Process not Found 1276 Process not Found 1276 Process not Found 1276 Process not Found 1276 Process not Found 1276 Process not Found 1276 Process not Found 1276 Process not Found 1276 Process not Found 1276 Process not Found 1276 Process not Found 1276 Process not Found 1276 Process not Found 1276 Process not Found 1276 Process not Found 1276 Process not Found 1276 Process not Found 1276 Process not Found 1276 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Found 1276 Process not Found 1276 Process not Found 1276 Process not Found 1276 Process not Found 1276 Process not Found 1276 Process not Found 1276 Process not Found 1276 Process not Found 1276 Process not Found 1276 Process not Found 1276 Process not Found 1276 Process not Found 1276 Process not Found 1276 Process not Found 1276 Process not Found 1276 Process not Found 1276 Process not Found 1276 Process not Found 1276 Process not Found 1276 Process not Found 1276 Process not Found 1276 Process not Found 1276 Process not Found 1276 Process not Found 1276 Process not Found 1276 Process not Found 1276 Process not Found 1276 Process not Found 1276 Process not Found 1276 Process not Found 1276 Process not Found 1276 Process not Found 1276 Process not Found 1276 Process not Found 1276 Process not Found 1276 Process not Found 1276 Process not Found 1276 Process not Found 1276 Process not Found 1276 Process not Found 1276 Process not Found 1276 Process not Found 1276 Process not Found 1276 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Found 1276 Process not Found 1276 Process not Found 1276 Process not Found 1276 Process not Found 1276 Process not Found 1276 Process not Found 1276 Process not Found 1276 Process not Found 1276 Process not Found 1764 explorer.exe 1764 explorer.exe 1764 explorer.exe 1764 explorer.exe 1276 Process not Found 1276 Process not Found 1276 Process not Found 1276 Process not Found 1276 Process not Found 1276 Process not Found 1088 explorer.exe 1276 Process not Found 1276 Process not Found 1276 Process not Found 1276 Process not Found - Suspicious behavior: MapViewOfSection 11 IoCs
pid Process 652 fwpxeohi.exe 1276 Process not Found 1276 Process not Found 1276 Process not Found 1276 Process not Found 1276 Process not Found 1276 Process not Found 1276 Process not Found 1276 Process not Found 1276 Process not Found 1276 Process not Found - Suspicious use of FindShellTrayWindow 4 IoCs
pid Process 1276 Process not Found 1276 Process not Found 1276 Process not Found 1276 Process not Found - Suspicious use of SendNotifyMessage 4 IoCs
pid Process 1276 Process not Found 1276 Process not Found 1276 Process not Found 1276 Process not Found - Suspicious use of SetWindowsHookEx 5 IoCs
pid Process 1848 EXCEL.EXE 1848 EXCEL.EXE 1848 EXCEL.EXE 1848 EXCEL.EXE 1848 EXCEL.EXE - Suspicious use of WriteProcessMemory 28 IoCs
description pid Process procid_target PID 1848 wrote to memory of 652 1848 EXCEL.EXE 31 PID 1848 wrote to memory of 652 1848 EXCEL.EXE 31 PID 1848 wrote to memory of 652 1848 EXCEL.EXE 31 PID 1848 wrote to memory of 652 1848 EXCEL.EXE 31 PID 1276 wrote to memory of 1076 1276 Process not Found 33 PID 1276 wrote to memory of 1076 1276 Process not Found 33 PID 1276 wrote to memory of 1076 1276 Process not Found 33 PID 1276 wrote to memory of 1076 1276 Process not Found 33 PID 1276 wrote to memory of 1076 1276 Process not Found 33 PID 1276 wrote to memory of 892 1276 Process not Found 34 PID 1276 wrote to memory of 892 1276 Process not Found 34 PID 1276 wrote to memory of 892 1276 Process not Found 34 PID 1276 wrote to memory of 892 1276 Process not Found 34 PID 1276 wrote to memory of 1176 1276 Process not Found 35 PID 1276 wrote to memory of 1176 1276 Process not Found 35 PID 1276 wrote to memory of 1176 1276 Process not Found 35 PID 1276 wrote to memory of 1176 1276 Process not Found 35 PID 1276 wrote to memory of 1176 1276 Process not Found 35 PID 1276 wrote to memory of 1764 1276 Process not Found 36 PID 1276 wrote to memory of 1764 1276 Process not Found 36 PID 1276 wrote to memory of 1764 1276 Process not Found 36 PID 1276 wrote to memory of 1764 1276 Process not Found 36 PID 1276 wrote to memory of 1764 1276 Process not Found 36 PID 1276 wrote to memory of 1088 1276 Process not Found 37 PID 1276 wrote to memory of 1088 1276 Process not Found 37 PID 1276 wrote to memory of 1088 1276 Process not Found 37 PID 1276 wrote to memory of 1088 1276 Process not Found 37 PID 1276 wrote to memory of 1088 1276 Process not Found 37
Processes
-
C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE"C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE" /dde C:\Users\Admin\AppData\Local\Temp\document-1352289798.xlsb1⤵
- Loads dropped DLL
- Enumerates system info in registry
- Modifies Internet Explorer settings
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1848 -
C:\giogti\mpopqr\fwpxeohi.exe"C:\giogti\mpopqr\fwpxeohi.exe"2⤵
- Executes dropped EXE
- Loads dropped DLL
- Checks SCSI registry key(s)
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
PID:652
-
-
C:\Windows\SysWOW64\explorer.exeC:\Windows\SysWOW64\explorer.exe1⤵PID:1076
-
C:\Windows\explorer.exeC:\Windows\explorer.exe1⤵PID:892
-
C:\Windows\SysWOW64\explorer.exeC:\Windows\SysWOW64\explorer.exe1⤵PID:1176
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C:\Windows\SysWOW64\explorer.exeC:\Windows\SysWOW64\explorer.exe1⤵PID:1764
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C:\Windows\SysWOW64\explorer.exeC:\Windows\SysWOW64\explorer.exe1⤵PID:1088