Analysis
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max time kernel
148s -
max time network
75s -
platform
windows7_x64 -
resource
win7v20210408 -
submitted
13-05-2021 12:54
Static task
static1
Behavioral task
behavioral1
Sample
catalog-2005820118.xls
Resource
win7v20210408
Behavioral task
behavioral2
Sample
catalog-2005820118.xls
Resource
win10v20210408
General
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Target
catalog-2005820118.xls
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Size
367KB
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MD5
29705062863dfd8816d9ea578aab78fd
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SHA1
40c270973f51fbba0b4bf1b54b0fe2a5512d2954
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SHA256
447579b3f72198ff1cdb35da46c870a10997f4719d7f92bc943cad5018abc5c8
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SHA512
9cc415d854b445782da55d18080e8d21e06ae9d74236bfe1993b0417a9fb7eac9d3fa7e1add44dbec3ecb4e76b96df6188f11857d94b826fde9b138b2212c92c
Malware Config
Extracted
https://smartpalakatva.com/edQsUZOLlE/th.html
https://pilstlcommodities.com/Ov4FlB3lpy/th.html
Signatures
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Process spawned unexpected child process 2 IoCs
This typically indicates the parent process was compromised via an exploit or macro.
Processes:
rundll32.exerundll32.exedescription pid pid_target process target process Parent C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE is not expected to spawn this process 632 1100 rundll32.exe EXCEL.EXE Parent C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE is not expected to spawn this process 2028 1100 rundll32.exe EXCEL.EXE -
Enumerates system info in registry 2 TTPs 1 IoCs
Processes:
EXCEL.EXEdescription ioc process Key opened \REGISTRY\MACHINE\Hardware\Description\System\FloatingPointProcessor EXCEL.EXE -
Processes:
EXCEL.EXEdescription ioc process Set value (str) \REGISTRY\USER\S-1-5-21-2455352368-1077083310-2879168483-1000\Software\Microsoft\Internet Explorer\Toolbar\ShowDiscussionButton = "Yes" EXCEL.EXE Key created \REGISTRY\USER\S-1-5-21-2455352368-1077083310-2879168483-1000\Software\Microsoft\Internet Explorer\MenuExt\Se&nd to OneNote EXCEL.EXE Set value (str) \REGISTRY\USER\S-1-5-21-2455352368-1077083310-2879168483-1000\Software\Microsoft\Internet Explorer\MenuExt\Se&nd to OneNote\ = "res://C:\\PROGRA~2\\MICROS~1\\Office14\\ONBttnIE.dll/105" EXCEL.EXE Set value (str) \REGISTRY\USER\S-1-5-21-2455352368-1077083310-2879168483-1000\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-1-5-21-2455352368-1077083310-2879168483-1000\Software\Microsoft\Internet Explorer\MenuExt\E&xport to Microsoft Excel\Contexts = "1" EXCEL.EXE Key created \REGISTRY\USER\S-1-5-21-2455352368-1077083310-2879168483-1000\Software\Microsoft\Internet Explorer\Toolbar EXCEL.EXE Key created \REGISTRY\USER\S-1-5-21-2455352368-1077083310-2879168483-1000\Software\Microsoft\Internet Explorer\MenuExt EXCEL.EXE Set value (int) \REGISTRY\USER\S-1-5-21-2455352368-1077083310-2879168483-1000\Software\Microsoft\Internet Explorer\MenuExt\Se&nd to OneNote\Contexts = "55" EXCEL.EXE Key created \REGISTRY\USER\S-1-5-21-2455352368-1077083310-2879168483-1000\Software\Microsoft\Internet Explorer\MenuExt\E&xport to Microsoft Excel EXCEL.EXE -
Suspicious behavior: AddClipboardFormatListener 1 IoCs
Processes:
EXCEL.EXEpid process 1100 EXCEL.EXE -
Suspicious use of SetWindowsHookEx 3 IoCs
Processes:
EXCEL.EXEpid process 1100 EXCEL.EXE 1100 EXCEL.EXE 1100 EXCEL.EXE -
Suspicious use of WriteProcessMemory 14 IoCs
Processes:
EXCEL.EXEdescription pid process target process PID 1100 wrote to memory of 632 1100 EXCEL.EXE rundll32.exe PID 1100 wrote to memory of 632 1100 EXCEL.EXE rundll32.exe PID 1100 wrote to memory of 632 1100 EXCEL.EXE rundll32.exe PID 1100 wrote to memory of 632 1100 EXCEL.EXE rundll32.exe PID 1100 wrote to memory of 632 1100 EXCEL.EXE rundll32.exe PID 1100 wrote to memory of 632 1100 EXCEL.EXE rundll32.exe PID 1100 wrote to memory of 632 1100 EXCEL.EXE rundll32.exe PID 1100 wrote to memory of 2028 1100 EXCEL.EXE rundll32.exe PID 1100 wrote to memory of 2028 1100 EXCEL.EXE rundll32.exe PID 1100 wrote to memory of 2028 1100 EXCEL.EXE rundll32.exe PID 1100 wrote to memory of 2028 1100 EXCEL.EXE rundll32.exe PID 1100 wrote to memory of 2028 1100 EXCEL.EXE rundll32.exe PID 1100 wrote to memory of 2028 1100 EXCEL.EXE rundll32.exe PID 1100 wrote to memory of 2028 1100 EXCEL.EXE rundll32.exe
Processes
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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\catalog-2005820118.xls1⤵
- Enumerates system info in registry
- Modifies Internet Explorer settings
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1100 -
C:\Windows\SysWOW64\rundll32.exerundll32 ..\tuti.rut,DllRegisterServer2⤵
- Process spawned unexpected child process
PID:632 -
C:\Windows\SysWOW64\rundll32.exerundll32 ..\tuti.rut1,DllRegisterServer2⤵
- Process spawned unexpected child process
PID:2028
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
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memory/632-62-0x0000000000000000-mapping.dmp
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memory/632-63-0x0000000075B31000-0x0000000075B33000-memory.dmpFilesize
8KB
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memory/1100-59-0x000000002FFB1000-0x000000002FFB4000-memory.dmpFilesize
12KB
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memory/1100-60-0x0000000071B91000-0x0000000071B93000-memory.dmpFilesize
8KB
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memory/1100-61-0x000000005FFF0000-0x0000000060000000-memory.dmpFilesize
64KB
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memory/2028-64-0x0000000000000000-mapping.dmp