Analysis
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max time kernel
149s -
max time network
60s -
platform
windows7_x64 -
resource
win7v20210408 -
submitted
13-05-2021 12:56
Static task
static1
Behavioral task
behavioral1
Sample
catalog-2092578801.xls
Resource
win7v20210408
Behavioral task
behavioral2
Sample
catalog-2092578801.xls
Resource
win10v20210410
General
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Target
catalog-2092578801.xls
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Size
367KB
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MD5
ddbb7fcf608649aafaf9c1a468093f0b
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SHA1
b9ebbf6ac9fb14c2f070fcbc445ad951ed16bb67
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SHA256
2952cd1f5f7cdcaedff7b14fd16ee96f4b9a41a1651edc9330a5e4129880cb7e
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SHA512
2e07adbc1c743b4e2142a1d82d50f4b1f6e5bbd7dfa85d085835458cd7b0c5520cf021339c3cc68ecdafbed5af85e920edc07c110770d4cce25d25e5efd8d1a6
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 1540 1828 rundll32.exe EXCEL.EXE Parent C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE is not expected to spawn this process 1080 1828 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-1-5-21-2455352368-1077083310-2879168483-1000\Software\Microsoft\Internet Explorer\Toolbar 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 (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 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 (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 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 (int) \REGISTRY\USER\S-1-5-21-2455352368-1077083310-2879168483-1000\Software\Microsoft\Internet Explorer\MenuExt\Se&nd to OneNote\Contexts = "55" EXCEL.EXE -
Suspicious behavior: AddClipboardFormatListener 1 IoCs
Processes:
EXCEL.EXEpid process 1828 EXCEL.EXE -
Suspicious use of SetWindowsHookEx 3 IoCs
Processes:
EXCEL.EXEpid process 1828 EXCEL.EXE 1828 EXCEL.EXE 1828 EXCEL.EXE -
Suspicious use of WriteProcessMemory 14 IoCs
Processes:
EXCEL.EXEdescription pid process target process PID 1828 wrote to memory of 1540 1828 EXCEL.EXE rundll32.exe PID 1828 wrote to memory of 1540 1828 EXCEL.EXE rundll32.exe PID 1828 wrote to memory of 1540 1828 EXCEL.EXE rundll32.exe PID 1828 wrote to memory of 1540 1828 EXCEL.EXE rundll32.exe PID 1828 wrote to memory of 1540 1828 EXCEL.EXE rundll32.exe PID 1828 wrote to memory of 1540 1828 EXCEL.EXE rundll32.exe PID 1828 wrote to memory of 1540 1828 EXCEL.EXE rundll32.exe PID 1828 wrote to memory of 1080 1828 EXCEL.EXE rundll32.exe PID 1828 wrote to memory of 1080 1828 EXCEL.EXE rundll32.exe PID 1828 wrote to memory of 1080 1828 EXCEL.EXE rundll32.exe PID 1828 wrote to memory of 1080 1828 EXCEL.EXE rundll32.exe PID 1828 wrote to memory of 1080 1828 EXCEL.EXE rundll32.exe PID 1828 wrote to memory of 1080 1828 EXCEL.EXE rundll32.exe PID 1828 wrote to memory of 1080 1828 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-2092578801.xls1⤵
- Enumerates system info in registry
- Modifies Internet Explorer settings
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\rundll32.exerundll32 ..\tuti.rut,DllRegisterServer2⤵
- Process spawned unexpected child process
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C:\Windows\SysWOW64\rundll32.exerundll32 ..\tuti.rut1,DllRegisterServer2⤵
- Process spawned unexpected child process
Network
MITRE ATT&CK Matrix ATT&CK v6
Replay Monitor
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Downloads
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memory/1080-65-0x0000000000000000-mapping.dmp
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memory/1540-63-0x0000000000000000-mapping.dmp
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memory/1540-64-0x0000000075801000-0x0000000075803000-memory.dmpFilesize
8KB
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memory/1828-60-0x000000002FAE1000-0x000000002FAE4000-memory.dmpFilesize
12KB
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memory/1828-61-0x0000000070E31000-0x0000000070E33000-memory.dmpFilesize
8KB
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memory/1828-62-0x000000005FFF0000-0x0000000060000000-memory.dmpFilesize
64KB