Analysis
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max time kernel
148s -
max time network
11s -
platform
windows7_x64 -
resource
win7v20210410 -
submitted
13-05-2021 12:55
Static task
static1
Behavioral task
behavioral1
Sample
catalog-2039293384.xls
Resource
win7v20210410
Behavioral task
behavioral2
Sample
catalog-2039293384.xls
Resource
win10v20210410
General
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Target
catalog-2039293384.xls
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Size
367KB
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MD5
450343e702838aae649c1392992c689a
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SHA1
0c41c17bde6add3c840f55ed92550cc45835f2fc
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SHA256
ff9e6980cc78f1d3b9518a0f9814962bcd7b1edd36fdbd567806a51a9f411b78
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SHA512
873a81aa933c2e7d9b7d37ea09740b614a88e4535d44378fbfa3c554b7b853298a242a9ff0168c23103f7c1bb1f8468c0801ec2be32f5b03f4af8341748448d3
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 436 1084 rundll32.exe EXCEL.EXE Parent C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE is not expected to spawn this process 1848 1084 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 Key created \REGISTRY\USER\S-1-5-21-2513283230-931923277-594887482-1000\Software\Microsoft\Internet Explorer\Toolbar EXCEL.EXE Set value (int) \REGISTRY\USER\S-1-5-21-2513283230-931923277-594887482-1000\Software\Microsoft\Internet Explorer\MenuExt\Se&nd to OneNote\Contexts = "55" EXCEL.EXE Set value (str) \REGISTRY\USER\S-1-5-21-2513283230-931923277-594887482-1000\Software\Microsoft\Internet Explorer\MenuExt\E&xport to Microsoft Excel\ = "res://C:\\PROGRA~2\\MICROS~1\\Office14\\EXCEL.EXE/3000" EXCEL.EXE Set value (str) \REGISTRY\USER\S-1-5-21-2513283230-931923277-594887482-1000\Software\Microsoft\Internet Explorer\Toolbar\ShowDiscussionButton = "Yes" EXCEL.EXE Key created \REGISTRY\USER\S-1-5-21-2513283230-931923277-594887482-1000\Software\Microsoft\Internet Explorer\MenuExt EXCEL.EXE Key created \REGISTRY\USER\S-1-5-21-2513283230-931923277-594887482-1000\Software\Microsoft\Internet Explorer\MenuExt\Se&nd to OneNote EXCEL.EXE Set value (str) \REGISTRY\USER\S-1-5-21-2513283230-931923277-594887482-1000\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-1-5-21-2513283230-931923277-594887482-1000\Software\Microsoft\Internet Explorer\MenuExt\E&xport to Microsoft Excel EXCEL.EXE Set value (int) \REGISTRY\USER\S-1-5-21-2513283230-931923277-594887482-1000\Software\Microsoft\Internet Explorer\MenuExt\E&xport to Microsoft Excel\Contexts = "1" EXCEL.EXE -
Suspicious behavior: AddClipboardFormatListener 1 IoCs
Processes:
EXCEL.EXEpid process 1084 EXCEL.EXE -
Suspicious use of SetWindowsHookEx 3 IoCs
Processes:
EXCEL.EXEpid process 1084 EXCEL.EXE 1084 EXCEL.EXE 1084 EXCEL.EXE -
Suspicious use of WriteProcessMemory 14 IoCs
Processes:
EXCEL.EXEdescription pid process target process PID 1084 wrote to memory of 436 1084 EXCEL.EXE rundll32.exe PID 1084 wrote to memory of 436 1084 EXCEL.EXE rundll32.exe PID 1084 wrote to memory of 436 1084 EXCEL.EXE rundll32.exe PID 1084 wrote to memory of 436 1084 EXCEL.EXE rundll32.exe PID 1084 wrote to memory of 436 1084 EXCEL.EXE rundll32.exe PID 1084 wrote to memory of 436 1084 EXCEL.EXE rundll32.exe PID 1084 wrote to memory of 436 1084 EXCEL.EXE rundll32.exe PID 1084 wrote to memory of 1848 1084 EXCEL.EXE rundll32.exe PID 1084 wrote to memory of 1848 1084 EXCEL.EXE rundll32.exe PID 1084 wrote to memory of 1848 1084 EXCEL.EXE rundll32.exe PID 1084 wrote to memory of 1848 1084 EXCEL.EXE rundll32.exe PID 1084 wrote to memory of 1848 1084 EXCEL.EXE rundll32.exe PID 1084 wrote to memory of 1848 1084 EXCEL.EXE rundll32.exe PID 1084 wrote to memory of 1848 1084 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-2039293384.xls1⤵
- Enumerates system info in registry
- Modifies Internet Explorer settings
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1084 -
C:\Windows\SysWOW64\rundll32.exerundll32 ..\tuti.rut,DllRegisterServer2⤵
- Process spawned unexpected child process
PID:436 -
C:\Windows\SysWOW64\rundll32.exerundll32 ..\tuti.rut1,DllRegisterServer2⤵
- Process spawned unexpected child process
PID:1848
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
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memory/436-62-0x0000000000000000-mapping.dmp
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memory/436-63-0x00000000752F1000-0x00000000752F3000-memory.dmpFilesize
8KB
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memory/1084-59-0x000000002F791000-0x000000002F794000-memory.dmpFilesize
12KB
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memory/1084-60-0x00000000715A1000-0x00000000715A3000-memory.dmpFilesize
8KB
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memory/1084-61-0x000000005FFF0000-0x0000000060000000-memory.dmpFilesize
64KB
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memory/1848-64-0x0000000000000000-mapping.dmp