Analysis
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max time kernel
96s -
max time network
128s -
platform
windows7_x64 -
resource
win7v20201028 -
submitted
12-03-2021 15:03
Behavioral task
behavioral1
Sample
Documents_2014081229.xls
Resource
win7v20201028
Behavioral task
behavioral2
Sample
Documents_2014081229.xls
Resource
win10v20201028
General
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Target
Documents_2014081229.xls
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Size
273KB
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MD5
63a68ba95fca6c9b586b1b7aaa8181df
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SHA1
afc6a930be981fea43f942f0fb7b71cf941d573b
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SHA256
efb99dabdc2014a65a03044be4e477a643c4cbae9e02ec184ace4f212860898f
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SHA512
fecb625fb7a6befcde453ff4b3792dfeed5dde73d8ba73096faafdbc9b092271cd344a4cdd7b2f9538255d58151e4a3a70bf2f4b680110881f02c2ecc3bb6d45
Malware Config
Extracted
https://sssolutionsllc.org/k.php
Extracted
zloader
kev
12/03
https://dazzlingnight.com/post.php
https://rylaconfxilo.tk/post.php
https://seaofsilver.com/post.php
https://kenthehafana.tk/post.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 928 1020 rundll32.exe EXCEL.EXE -
Blocklisted process makes network request 4 IoCs
Processes:
msiexec.exeflow pid process 12 868 msiexec.exe 14 868 msiexec.exe 16 868 msiexec.exe 18 868 msiexec.exe -
Loads dropped DLL 1 IoCs
Processes:
rundll32.exepid process 928 rundll32.exe -
Suspicious use of SetThreadContext 1 IoCs
Processes:
rundll32.exedescription pid process target process PID 928 set thread context of 868 928 rundll32.exe msiexec.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-1-5-21-293278959-2699126792-324916226-1000\Software\Microsoft\Internet Explorer\MenuExt 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 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 (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 1020 EXCEL.EXE -
Suspicious use of AdjustPrivilegeToken 2 IoCs
Processes:
msiexec.exedescription pid process Token: SeSecurityPrivilege 868 msiexec.exe Token: SeSecurityPrivilege 868 msiexec.exe -
Suspicious use of SetWindowsHookEx 3 IoCs
Processes:
EXCEL.EXEpid process 1020 EXCEL.EXE 1020 EXCEL.EXE 1020 EXCEL.EXE -
Suspicious use of WriteProcessMemory 16 IoCs
Processes:
EXCEL.EXErundll32.exedescription pid process target process PID 1020 wrote to memory of 928 1020 EXCEL.EXE rundll32.exe PID 1020 wrote to memory of 928 1020 EXCEL.EXE rundll32.exe PID 1020 wrote to memory of 928 1020 EXCEL.EXE rundll32.exe PID 1020 wrote to memory of 928 1020 EXCEL.EXE rundll32.exe PID 1020 wrote to memory of 928 1020 EXCEL.EXE rundll32.exe PID 1020 wrote to memory of 928 1020 EXCEL.EXE rundll32.exe PID 1020 wrote to memory of 928 1020 EXCEL.EXE rundll32.exe PID 928 wrote to memory of 868 928 rundll32.exe msiexec.exe PID 928 wrote to memory of 868 928 rundll32.exe msiexec.exe PID 928 wrote to memory of 868 928 rundll32.exe msiexec.exe PID 928 wrote to memory of 868 928 rundll32.exe msiexec.exe PID 928 wrote to memory of 868 928 rundll32.exe msiexec.exe PID 928 wrote to memory of 868 928 rundll32.exe msiexec.exe PID 928 wrote to memory of 868 928 rundll32.exe msiexec.exe PID 928 wrote to memory of 868 928 rundll32.exe msiexec.exe PID 928 wrote to memory of 868 928 rundll32.exe msiexec.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\Documents_2014081229.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 ..\sfdgsd.dss,DllRegisterServer2⤵
- Process spawned unexpected child process
- Loads dropped DLL
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\msiexec.exemsiexec.exe3⤵
- Blocklisted process makes network request
- Suspicious use of AdjustPrivilegeToken
Network
MITRE ATT&CK Matrix ATT&CK v6
Replay Monitor
Loading Replay Monitor...
Downloads
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C:\Users\Admin\sfdgsd.dssMD5
c6b02277b3dd7e0fd1133cf9290cdef6
SHA1754cc1546ceafe9f62db188e214d5696aed609d5
SHA256d20f5e6ff3b8af7d2adb395d2fc57b5c35343fc7b17865ccbbc66b66711a3b4c
SHA512e5702c48ce1dcdde8c059502f4c316ec31dd02ff0995ce33ebadbca913d31d0e213089c162e8cdbe356f7ca806e00ffe5f00f4ccc7ed97b6a09966fad392a701
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\Users\Admin\sfdgsd.dssMD5
c6b02277b3dd7e0fd1133cf9290cdef6
SHA1754cc1546ceafe9f62db188e214d5696aed609d5
SHA256d20f5e6ff3b8af7d2adb395d2fc57b5c35343fc7b17865ccbbc66b66711a3b4c
SHA512e5702c48ce1dcdde8c059502f4c316ec31dd02ff0995ce33ebadbca913d31d0e213089c162e8cdbe356f7ca806e00ffe5f00f4ccc7ed97b6a09966fad392a701
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memory/868-12-0x0000000000000000-mapping.dmp
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memory/868-14-0x0000000000090000-0x00000000000B9000-memory.dmpFilesize
164KB
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memory/928-6-0x0000000000000000-mapping.dmp
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memory/928-7-0x00000000753E1000-0x00000000753E3000-memory.dmpFilesize
8KB
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memory/928-10-0x000000006BE90000-0x000000006BEB9000-memory.dmpFilesize
164KB
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memory/928-11-0x0000000000110000-0x0000000000111000-memory.dmpFilesize
4KB
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memory/1020-2-0x000000002FEA1000-0x000000002FEA4000-memory.dmpFilesize
12KB
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memory/1020-3-0x0000000070DE1000-0x0000000070DE3000-memory.dmpFilesize
8KB
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memory/1020-4-0x000000005FFF0000-0x0000000060000000-memory.dmpFilesize
64KB
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memory/1976-5-0x000007FEF5BD0000-0x000007FEF5E4A000-memory.dmpFilesize
2.5MB