Analysis
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max time kernel
148s -
max time network
173s -
platform
windows7_x64 -
resource
win7v20210410 -
submitted
23-07-2021 16:11
Behavioral task
behavioral1
Sample
Client_documents_access_1793-1029.xlsm
Resource
win7v20210410
windows7_x64
0 signatures
0 seconds
Behavioral task
behavioral2
Sample
Client_documents_access_1793-1029.xlsm
Resource
win10v20210410
windows10_x64
0 signatures
0 seconds
General
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Target
Client_documents_access_1793-1029.xlsm
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Size
85KB
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MD5
e05574d2a2b00fc7b9862ad631ce3315
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SHA1
b55f7933231453358bd4e0a033a8030595412b60
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SHA256
6cb9eff2c03a7064a655a6117cb62d4bf8694a6fab10588cac60b0781d60ca4d
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SHA512
065d815ac37c355098345392f4ffe1793317e6cd55640f05229c2f1211b9a0dd0941844e7234a27986f8b6a48cb8de1aa883440c23be91450f6b1da9cb9c1468
Score
10/10
Malware Config
Extracted
Language
xlm4.0
Source
URLs
xlm40.dropper
http://162.248.227.39/first.php
Signatures
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Process spawned unexpected child process 1 IoCs
This typically indicates the parent process was compromised via an exploit or macro.
Processes:
regsvr32.exedescription pid pid_target process target process Parent C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE is not expected to spawn this process 1740 1080 regsvr32.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\Se&nd to OneNote\ = "res://C:\\PROGRA~2\\MICROS~1\\Office14\\ONBttnIE.dll/105" EXCEL.EXE Set value (str) \REGISTRY\USER\S-1-5-21-2513283230-931923277-594887482-1000\Software\Microsoft\Internet Explorer\MenuExt\E&xport to Microsoft Excel\ = "res://C:\\PROGRA~2\\MICROS~1\\Office14\\EXCEL.EXE/3000" EXCEL.EXE 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\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 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 1080 EXCEL.EXE -
Suspicious use of SetWindowsHookEx 3 IoCs
Processes:
EXCEL.EXEpid process 1080 EXCEL.EXE 1080 EXCEL.EXE 1080 EXCEL.EXE -
Suspicious use of WriteProcessMemory 7 IoCs
Processes:
EXCEL.EXEdescription pid process target process PID 1080 wrote to memory of 1740 1080 EXCEL.EXE regsvr32.exe PID 1080 wrote to memory of 1740 1080 EXCEL.EXE regsvr32.exe PID 1080 wrote to memory of 1740 1080 EXCEL.EXE regsvr32.exe PID 1080 wrote to memory of 1740 1080 EXCEL.EXE regsvr32.exe PID 1080 wrote to memory of 1740 1080 EXCEL.EXE regsvr32.exe PID 1080 wrote to memory of 1740 1080 EXCEL.EXE regsvr32.exe PID 1080 wrote to memory of 1740 1080 EXCEL.EXE regsvr32.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\Client_documents_access_1793-1029.xlsm1⤵
- 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\regsvr32.exeregsvr32 -silent ..\yeieowur.dll2⤵
- 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/1080-59-0x000000002F4C1000-0x000000002F4C4000-memory.dmpFilesize
12KB
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memory/1080-60-0x0000000071081000-0x0000000071083000-memory.dmpFilesize
8KB
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memory/1080-61-0x000000005FFF0000-0x0000000060000000-memory.dmpFilesize
64KB
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memory/1740-62-0x0000000000000000-mapping.dmp
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memory/1740-63-0x0000000075561000-0x0000000075563000-memory.dmpFilesize
8KB