Analysis
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max time kernel
148s -
max time network
68s -
platform
windows7_x64 -
resource
win7v20210408 -
submitted
13-05-2021 12:54
Static task
static1
Behavioral task
behavioral1
Sample
catalog-1986201310.xls
Resource
win7v20210408
Behavioral task
behavioral2
Sample
catalog-1986201310.xls
Resource
win10v20210410
General
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Target
catalog-1986201310.xls
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Size
367KB
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MD5
52c50cbe0437b646aaa52f14ec1a4e1b
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SHA1
43be9e63407135bc8d9432d89557364e4deeebc3
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SHA256
a19f600783fb45bceba9ca3773e3fef9f10616e87680c4e3aa4eaf1cd3446d8c
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SHA512
2dcd0585952b6617568456551cd8c4a8271874016a8f7f11c10bcfe86f4139b4225b907553b296730dc9fc41f6b43b36dc74421c4b3a029ea355bc174190c94e
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 1864 1204 rundll32.exe EXCEL.EXE Parent C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE is not expected to spawn this process 1836 1204 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\MenuExt\E&xport to Microsoft Excel\ = "res://C:\\PROGRA~2\\MICROS~1\\Office14\\EXCEL.EXE/3000" 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 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 Key created \REGISTRY\USER\S-1-5-21-2455352368-1077083310-2879168483-1000\Software\Microsoft\Internet Explorer\MenuExt\E&xport to Microsoft Excel EXCEL.EXE Set value (str) \REGISTRY\USER\S-1-5-21-2455352368-1077083310-2879168483-1000\Software\Microsoft\Internet Explorer\Toolbar\ShowDiscussionButton = "Yes" 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 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 -
Suspicious behavior: AddClipboardFormatListener 1 IoCs
Processes:
EXCEL.EXEpid process 1204 EXCEL.EXE -
Suspicious use of SetWindowsHookEx 3 IoCs
Processes:
EXCEL.EXEpid process 1204 EXCEL.EXE 1204 EXCEL.EXE 1204 EXCEL.EXE -
Suspicious use of WriteProcessMemory 14 IoCs
Processes:
EXCEL.EXEdescription pid process target process PID 1204 wrote to memory of 1864 1204 EXCEL.EXE rundll32.exe PID 1204 wrote to memory of 1864 1204 EXCEL.EXE rundll32.exe PID 1204 wrote to memory of 1864 1204 EXCEL.EXE rundll32.exe PID 1204 wrote to memory of 1864 1204 EXCEL.EXE rundll32.exe PID 1204 wrote to memory of 1864 1204 EXCEL.EXE rundll32.exe PID 1204 wrote to memory of 1864 1204 EXCEL.EXE rundll32.exe PID 1204 wrote to memory of 1864 1204 EXCEL.EXE rundll32.exe PID 1204 wrote to memory of 1836 1204 EXCEL.EXE rundll32.exe PID 1204 wrote to memory of 1836 1204 EXCEL.EXE rundll32.exe PID 1204 wrote to memory of 1836 1204 EXCEL.EXE rundll32.exe PID 1204 wrote to memory of 1836 1204 EXCEL.EXE rundll32.exe PID 1204 wrote to memory of 1836 1204 EXCEL.EXE rundll32.exe PID 1204 wrote to memory of 1836 1204 EXCEL.EXE rundll32.exe PID 1204 wrote to memory of 1836 1204 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-1986201310.xls1⤵
- Enumerates system info in registry
- Modifies Internet Explorer settings
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1204 -
C:\Windows\SysWOW64\rundll32.exerundll32 ..\tuti.rut,DllRegisterServer2⤵
- Process spawned unexpected child process
PID:1864 -
C:\Windows\SysWOW64\rundll32.exerundll32 ..\tuti.rut1,DllRegisterServer2⤵
- Process spawned unexpected child process
PID:1836
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
Loading Replay Monitor...
Downloads
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memory/1204-59-0x000000002FA01000-0x000000002FA04000-memory.dmpFilesize
12KB
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memory/1204-60-0x0000000070E81000-0x0000000070E83000-memory.dmpFilesize
8KB
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memory/1204-61-0x000000005FFF0000-0x0000000060000000-memory.dmpFilesize
64KB
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memory/1836-64-0x0000000000000000-mapping.dmp
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memory/1864-62-0x0000000000000000-mapping.dmp
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memory/1864-63-0x0000000074D91000-0x0000000074D93000-memory.dmpFilesize
8KB