Analysis
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max time kernel
118s -
max time network
117s -
platform
windows7_x64 -
resource
win7v20201028 -
submitted
24-02-2021 21:13
Behavioral task
behavioral1
Sample
254840536256708365.xls
Resource
win7v20201028
windows7_x64
0 signatures
0 seconds
Behavioral task
behavioral2
Sample
254840536256708365.xls
Resource
win10v20201028
windows10_x64
0 signatures
0 seconds
General
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Target
254840536256708365.xls
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Size
106KB
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MD5
55ba3916ea9a011629299b8e22b98a5e
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SHA1
06bafc08eeeb7285631ef678c34108d7e73473fa
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SHA256
46ddecbf4398ad5a3da87343d2c4033fd54dd8ecca4a66954b81622f822cb3f0
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SHA512
3921ec370745370837fcbd5d1f59ad01484d91835b72a0449f28a7c84b12fac51897d8909ffb055c3ee6f6dc1425a1b350fc7120702fde9053b125c7add20d22
Score
10/10
Malware Config
Extracted
Language
xlm4.0
Source
URLs
xlm40.dropper
https://statssale.com/header.jpg
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:
rundll32.exedescription pid pid_target process target process Parent C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE is not expected to spawn this process 1636 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 Set value (str) \REGISTRY\USER\S-1-5-21-293278959-2699126792-324916226-1000\Software\Microsoft\Internet Explorer\Toolbar\ShowDiscussionButton = "Yes" EXCEL.EXE Key created \REGISTRY\USER\S-1-5-21-293278959-2699126792-324916226-1000\Software\Microsoft\Internet Explorer\MenuExt\Se&nd to OneNote EXCEL.EXE Set value (str) \REGISTRY\USER\S-1-5-21-293278959-2699126792-324916226-1000\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-1-5-21-293278959-2699126792-324916226-1000\Software\Microsoft\Internet Explorer\MenuExt\E&xport to Microsoft Excel EXCEL.EXE Set value (str) \REGISTRY\USER\S-1-5-21-293278959-2699126792-324916226-1000\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-1-5-21-293278959-2699126792-324916226-1000\Software\Microsoft\Internet Explorer\MenuExt\E&xport to Microsoft Excel\Contexts = "1" EXCEL.EXE Key created \REGISTRY\USER\S-1-5-21-293278959-2699126792-324916226-1000\Software\Microsoft\Internet Explorer\Toolbar EXCEL.EXE Key created \REGISTRY\USER\S-1-5-21-293278959-2699126792-324916226-1000\Software\Microsoft\Internet Explorer\MenuExt EXCEL.EXE Set value (int) \REGISTRY\USER\S-1-5-21-293278959-2699126792-324916226-1000\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 7 IoCs
Processes:
EXCEL.EXEdescription pid process target process PID 1828 wrote to memory of 1636 1828 EXCEL.EXE rundll32.exe PID 1828 wrote to memory of 1636 1828 EXCEL.EXE rundll32.exe PID 1828 wrote to memory of 1636 1828 EXCEL.EXE rundll32.exe PID 1828 wrote to memory of 1636 1828 EXCEL.EXE rundll32.exe PID 1828 wrote to memory of 1636 1828 EXCEL.EXE rundll32.exe PID 1828 wrote to memory of 1636 1828 EXCEL.EXE rundll32.exe PID 1828 wrote to memory of 1636 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\254840536256708365.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.exe"C:\Windows\System32\rundll32.exe" C:\uzkelPc\brvypPe\FXSHmvw.dll,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/1116-5-0x000007FEF77C0000-0x000007FEF7A3A000-memory.dmpFilesize
2.5MB
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memory/1636-6-0x0000000000000000-mapping.dmp
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memory/1636-7-0x00000000760A1000-0x00000000760A3000-memory.dmpFilesize
8KB
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memory/1828-2-0x000000002F231000-0x000000002F234000-memory.dmpFilesize
12KB
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memory/1828-3-0x0000000071051000-0x0000000071053000-memory.dmpFilesize
8KB
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memory/1828-4-0x000000005FFF0000-0x0000000060000000-memory.dmpFilesize
64KB