Analysis
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max time kernel
148s -
max time network
11s -
platform
windows7_x64 -
resource
win7v20210410 -
submitted
13-05-2021 12:58
Static task
static1
Behavioral task
behavioral1
Sample
catalog-246234812.xls
Resource
win7v20210410
Behavioral task
behavioral2
Sample
catalog-246234812.xls
Resource
win10v20210408
General
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Target
catalog-246234812.xls
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Size
367KB
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MD5
961bd25ec4aeb578ad535a7d9721de96
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SHA1
5bac3d561e2f009cb071a66e2fff96f143d98cf0
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SHA256
7906a1c0e8e1160ee05b7d76739b56c824ad94b6ea62649479d80150381d8b06
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SHA512
3c0479c5dfff784d17207f1058de0dbde8b99f48c6f5ea99b42cb5bd23f743dd8c6e971e29a7076047a4b7a947b439adcf2841c5b809fd89f1c8edd6cde0ed87
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 1420 rundll32.exe EXCEL.EXE Parent C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE is not expected to spawn this process 984 1420 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-1-5-21-2513283230-931923277-594887482-1000\Software\Microsoft\Internet Explorer\MenuExt\E&xport to Microsoft Excel\ = "res://C:\\PROGRA~2\\MICROS~1\\Office14\\EXCEL.EXE/3000" EXCEL.EXE Set value (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 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 (int) \REGISTRY\USER\S-1-5-21-2513283230-931923277-594887482-1000\Software\Microsoft\Internet Explorer\MenuExt\Se&nd to OneNote\Contexts = "55" 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 Key created \REGISTRY\USER\S-1-5-21-2513283230-931923277-594887482-1000\Software\Microsoft\Internet Explorer\Toolbar 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 -
Suspicious behavior: AddClipboardFormatListener 1 IoCs
Processes:
EXCEL.EXEpid process 1420 EXCEL.EXE -
Suspicious use of SetWindowsHookEx 3 IoCs
Processes:
EXCEL.EXEpid process 1420 EXCEL.EXE 1420 EXCEL.EXE 1420 EXCEL.EXE -
Suspicious use of WriteProcessMemory 14 IoCs
Processes:
EXCEL.EXEdescription pid process target process PID 1420 wrote to memory of 632 1420 EXCEL.EXE rundll32.exe PID 1420 wrote to memory of 632 1420 EXCEL.EXE rundll32.exe PID 1420 wrote to memory of 632 1420 EXCEL.EXE rundll32.exe PID 1420 wrote to memory of 632 1420 EXCEL.EXE rundll32.exe PID 1420 wrote to memory of 632 1420 EXCEL.EXE rundll32.exe PID 1420 wrote to memory of 632 1420 EXCEL.EXE rundll32.exe PID 1420 wrote to memory of 632 1420 EXCEL.EXE rundll32.exe PID 1420 wrote to memory of 984 1420 EXCEL.EXE rundll32.exe PID 1420 wrote to memory of 984 1420 EXCEL.EXE rundll32.exe PID 1420 wrote to memory of 984 1420 EXCEL.EXE rundll32.exe PID 1420 wrote to memory of 984 1420 EXCEL.EXE rundll32.exe PID 1420 wrote to memory of 984 1420 EXCEL.EXE rundll32.exe PID 1420 wrote to memory of 984 1420 EXCEL.EXE rundll32.exe PID 1420 wrote to memory of 984 1420 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-246234812.xls1⤵
- Enumerates system info in registry
- Modifies Internet Explorer settings
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1420 -
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:984
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/632-63-0x0000000074FB1000-0x0000000074FB3000-memory.dmpFilesize
8KB
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memory/984-64-0x0000000000000000-mapping.dmp
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memory/1420-59-0x000000002F631000-0x000000002F634000-memory.dmpFilesize
12KB
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memory/1420-60-0x0000000070DA1000-0x0000000070DA3000-memory.dmpFilesize
8KB
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memory/1420-61-0x000000005FFF0000-0x0000000060000000-memory.dmpFilesize
64KB