Analysis
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max time kernel
1744s -
max time network
1708s -
platform
windows7_x64 -
resource
win7v20201028 -
submitted
19-01-2021 16:47
Behavioral task
behavioral1
Sample
PQ_7498.xls
Resource
win7v20201028
Behavioral task
behavioral2
Sample
PQ_7498.xls
Resource
win7v20201028
General
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Target
PQ_7498.xls
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Size
33KB
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MD5
20ce34e6dfd1f17d5e1e8564167c23bd
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SHA1
984045d9a670b781f4712611c87cc191380ef6f9
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SHA256
f9adf499bc16bfd096e00bc59c3233f022dec20c20440100d56e58610e4aded3
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SHA512
ef7fddfbbdb40f6b75d838397cad454a51822cbfec5e2dfbb8401784c518de74e9d707f9c44db2054be208735dba903035f1b75d7384fec5dc4c78275494514b
Malware Config
Extracted
http://indiamedicalshow.com/visitors.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:
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 1552 1812 rundll32.exe EXCEL.EXE -
JavaScript code in executable 2 IoCs
Processes:
yara_rule js C:\Users\Public\Documents\KsB.txt js -
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-1-5-21-293278959-2699126792-324916226-1000\Software\Microsoft\Internet Explorer\MenuExt 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 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 Set value (str) \REGISTRY\USER\S-1-5-21-293278959-2699126792-324916226-1000\Software\Microsoft\Internet Explorer\Toolbar\ShowDiscussionButton = "Yes" 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 Key created \REGISTRY\USER\S-1-5-21-293278959-2699126792-324916226-1000\Software\Microsoft\Internet Explorer\MenuExt\E&xport to Microsoft Excel EXCEL.EXE -
Suspicious behavior: AddClipboardFormatListener 1 IoCs
Processes:
EXCEL.EXEpid process 1812 EXCEL.EXE -
Suspicious behavior: GetForegroundWindowSpam 1 IoCs
Processes:
EXCEL.EXEpid process 1812 EXCEL.EXE -
Suspicious use of AdjustPrivilegeToken 1 IoCs
Processes:
EXCEL.EXEdescription pid process Token: SeShutdownPrivilege 1812 EXCEL.EXE -
Suspicious use of SetWindowsHookEx 10 IoCs
Processes:
EXCEL.EXEpid process 1812 EXCEL.EXE 1812 EXCEL.EXE 1812 EXCEL.EXE 1812 EXCEL.EXE 1812 EXCEL.EXE 1812 EXCEL.EXE 1812 EXCEL.EXE 1812 EXCEL.EXE 1812 EXCEL.EXE 1812 EXCEL.EXE -
Suspicious use of WriteProcessMemory 7 IoCs
Processes:
EXCEL.EXEdescription pid process target process PID 1812 wrote to memory of 1552 1812 EXCEL.EXE rundll32.exe PID 1812 wrote to memory of 1552 1812 EXCEL.EXE rundll32.exe PID 1812 wrote to memory of 1552 1812 EXCEL.EXE rundll32.exe PID 1812 wrote to memory of 1552 1812 EXCEL.EXE rundll32.exe PID 1812 wrote to memory of 1552 1812 EXCEL.EXE rundll32.exe PID 1812 wrote to memory of 1552 1812 EXCEL.EXE rundll32.exe PID 1812 wrote to memory of 1552 1812 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\PQ_7498.xls1⤵
- Enumerates system info in registry
- Modifies Internet Explorer settings
- Suspicious behavior: AddClipboardFormatListener
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1812 -
C:\Windows\SysWOW64\rundll32.exe"C:\Windows\system32\rundll32.exe" C:\Users\Public\Documents\KsB.txt,DllRegisterServer2⤵
- Process spawned unexpected child process
PID:1552
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
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MD5
3704482d1d5baa2cf2b631b61e0f7935
SHA1d628730532948cddbdde774ebc6508cafd4d2423
SHA25615c07d4972a68c54cc2d18505215bb2c5485b3961e2cf9a8e917078a1bca8097
SHA512f0455d6dbb90a431cbac16ebf17762e064b91e2e2bf1460a8d869bd10edecc47b146f781abb3876087caf9ed40b4ac47096b80fca05cb9d3994ba6a65263564c