Analysis
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max time kernel
148s -
max time network
149s -
platform
windows7_x64 -
resource
win7-20220414-en -
submitted
05-07-2022 12:20
Static task
static1
Behavioral task
behavioral1
Sample
88160011B.xlsx
Resource
win7-20220414-en
Behavioral task
behavioral2
Sample
88160011B.xlsx
Resource
win10v2004-20220414-en
Behavioral task
behavioral3
Sample
decrypted.xlsx
Resource
win7-20220414-en
Behavioral task
behavioral4
Sample
decrypted.xlsx
Resource
win10v2004-20220414-en
General
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Target
88160011B.xlsx
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Size
39KB
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MD5
bb45f31acbfa03dcf30c1ef037a607e2
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SHA1
4539a5f55990c8490f39d0724e372ba66bdbf903
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SHA256
4da0fa732b3cb2b77f92db9ed169eae7606d5646aa38dbaf9667565556b3e223
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SHA512
5290df186c6312a68bb81429a19bb8eee06b71bdbe5b9d7e1ebc4ceca87ef7021d463b2a38f1e9388859fc63a6bd112e6f3f358ff251f0ffdae8e9ffd420bf62
Malware Config
Extracted
snakekeylogger
Protocol: smtp- Host:
mail.stilltech.ro - Port:
587 - Username:
office@stilltech.ro - Password:
eurobit555ro - Email To:
graceunlimited153@gmail.com
Signatures
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Snake Keylogger
Keylogger and Infostealer first seen in November 2020.
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Snake Keylogger Payload 6 IoCs
Processes:
resource yara_rule behavioral1/memory/1700-88-0x0000000000400000-0x0000000000426000-memory.dmp family_snakekeylogger behavioral1/memory/1700-86-0x0000000000400000-0x0000000000426000-memory.dmp family_snakekeylogger behavioral1/memory/1700-90-0x00000000004202AE-mapping.dmp family_snakekeylogger behavioral1/memory/1700-89-0x0000000000400000-0x0000000000426000-memory.dmp family_snakekeylogger behavioral1/memory/1700-94-0x0000000000400000-0x0000000000426000-memory.dmp family_snakekeylogger behavioral1/memory/1700-92-0x0000000000400000-0x0000000000426000-memory.dmp family_snakekeylogger -
suricata: ET MALWARE MSIL/GenKryptik.FQRH Download Request
suricata: ET MALWARE MSIL/GenKryptik.FQRH Download Request
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suricata: ET MALWARE Terse alphanumeric executable downloader high likelihood of being hostile
suricata: ET MALWARE Terse alphanumeric executable downloader high likelihood of being hostile
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Blocklisted process makes network request 1 IoCs
Processes:
EQNEDT32.EXEflow pid process 8 576 EQNEDT32.EXE -
Downloads MZ/PE file
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Executes dropped EXE 1 IoCs
Processes:
vbc.exepid process 1512 vbc.exe -
Abuses OpenXML format to download file from external location
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Loads dropped DLL 4 IoCs
Processes:
EQNEDT32.EXEpid process 576 EQNEDT32.EXE 576 EQNEDT32.EXE 576 EQNEDT32.EXE 576 EQNEDT32.EXE -
Uses the VBS compiler for execution 1 TTPs
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Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs
Processes:
RegSvcs.exedescription ioc process Key opened \REGISTRY\USER\S-1-5-21-2277218442-1199762539-2004043321-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 RegSvcs.exe Key opened \REGISTRY\USER\S-1-5-21-2277218442-1199762539-2004043321-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 RegSvcs.exe Key opened \REGISTRY\USER\S-1-5-21-2277218442-1199762539-2004043321-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 RegSvcs.exe -
Looks up external IP address via web service 1 IoCs
Uses a legitimate IP lookup service to find the infected system's external IP.
Processes:
flow ioc 10 checkip.dyndns.org -
Suspicious use of SetThreadContext 1 IoCs
Processes:
vbc.exedescription pid process target process PID 1512 set thread context of 1700 1512 vbc.exe RegSvcs.exe -
Office loads VBA resources, possible macro or embedded object present
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Enumerates system info in registry 2 TTPs 1 IoCs
Processes:
EXCEL.EXEdescription ioc process Key opened \REGISTRY\MACHINE\Hardware\Description\System\FloatingPointProcessor EXCEL.EXE -
Launches Equation Editor 1 TTPs 1 IoCs
Equation Editor is an old Office component often targeted by exploits such as CVE-2017-11882.
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Processes:
EXCEL.EXEWINWORD.EXEdescription ioc process Set value (str) \REGISTRY\USER\S-1-5-21-2277218442-1199762539-2004043321-1000\Software\Microsoft\Internet Explorer\MenuExt\E&xport to Microsoft Excel\ = "res://C:\\PROGRA~2\\MICROS~1\\Office14\\EXCEL.EXE/3000" EXCEL.EXE Key deleted \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Internet Explorer\Default MHTML Editor\shell WINWORD.EXE Key deleted \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Internet Explorer\Default MHTML Editor WINWORD.EXE Key created \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Internet Explorer\Default MHTML Editor WINWORD.EXE Set value (str) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Internet Explorer\Default MHTML Editor\shell\edit\ = "&Edit" WINWORD.EXE Key created \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Internet Explorer\Default MHTML Editor\shell\edit\command WINWORD.EXE Set value (str) \REGISTRY\USER\S-1-5-21-2277218442-1199762539-2004043321-1000\Software\Microsoft\Internet Explorer\MenuExt\Se&nd to OneNote\ = "res://C:\\PROGRA~2\\MICROS~1\\Office14\\ONBttnIE.dll/105" EXCEL.EXE Set value (int) \REGISTRY\USER\S-1-5-21-2277218442-1199762539-2004043321-1000\Software\Microsoft\Internet Explorer\MenuExt\E&xport to Microsoft Excel\Contexts = "1" EXCEL.EXE Key deleted \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Internet Explorer\Default HTML Editor\shell WINWORD.EXE Key deleted \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Internet Explorer\Default HTML Editor WINWORD.EXE Key created \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Internet Explorer\Default HTML Editor WINWORD.EXE Set value (data) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Internet Explorer\Default MHTML Editor\shell\edit\command\command = 7800620027004200560035002100210021002100210021002100210021004d004b004b0053006b0057004f0052004400460069006c00650073003e00620069002400540021005600210030005a003d007b0050006b00300076006d007e0041005a00750020002f006e002000220025003100220000000000 WINWORD.EXE Set value (str) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Internet Explorer\Default HTML Editor\shell\edit\command\ = "\"C:\\Program Files (x86)\\Microsoft Office\\Office14\\WINWORD.EXE\" /n \"%1\"" WINWORD.EXE Key created \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Internet Explorer\Default MHTML Editor\shell WINWORD.EXE Key deleted \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Internet Explorer\Default HTML Editor\shell\edit\COMMAND WINWORD.EXE Key created \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Internet Explorer\Default HTML Editor\shell WINWORD.EXE Set value (data) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Internet Explorer\Default HTML Editor\shell\edit\command\command = 7800620027004200560035002100210021002100210021002100210021004d004b004b0053006b0057004f0052004400460069006c00650073003e00620069002400540021005600210030005a003d007b0050006b00300076006d007e0041005a00750020002f006e002000220025003100220000000000 WINWORD.EXE Key deleted \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Internet Explorer\Default MHTML Editor\shell\edit WINWORD.EXE Key created \REGISTRY\USER\S-1-5-21-2277218442-1199762539-2004043321-1000\Software\Microsoft\Internet Explorer\Toolbar EXCEL.EXE Set value (str) \REGISTRY\USER\S-1-5-21-2277218442-1199762539-2004043321-1000\Software\Microsoft\Internet Explorer\Toolbar\ShowDiscussionButton = "Yes" EXCEL.EXE Key created \REGISTRY\USER\S-1-5-21-2277218442-1199762539-2004043321-1000\Software\Microsoft\Internet Explorer\MenuExt EXCEL.EXE Key created \REGISTRY\USER\S-1-5-21-2277218442-1199762539-2004043321-1000\Software\Microsoft\Internet Explorer\MenuExt\Se&nd to OneNote EXCEL.EXE Key created \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Internet Explorer\Default HTML Editor\shell\edit\command WINWORD.EXE Set value (int) \REGISTRY\USER\S-1-5-21-2277218442-1199762539-2004043321-1000\Software\Microsoft\Internet Explorer\MenuExt\Se&nd to OneNote\Contexts = "55" EXCEL.EXE Key created \REGISTRY\USER\S-1-5-21-2277218442-1199762539-2004043321-1000\Software\Microsoft\Internet Explorer\MenuExt\E&xport to Microsoft Excel EXCEL.EXE Key deleted \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Internet Explorer\Default MHTML Editor\shell\edit\COMMAND WINWORD.EXE Key created \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Internet Explorer\Default MHTML Editor\shell\edit WINWORD.EXE Set value (str) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Internet Explorer\Default MHTML Editor\shell\edit\command\ = "\"C:\\Program Files (x86)\\Microsoft Office\\Office14\\WINWORD.EXE\" /n \"%1\"" WINWORD.EXE Key deleted \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Internet Explorer\Default HTML Editor\shell\edit WINWORD.EXE Key created \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Internet Explorer\Default HTML Editor\shell\edit WINWORD.EXE Set value (str) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Internet Explorer\Default HTML Editor\shell\edit\ = "&Edit" WINWORD.EXE -
Modifies registry class 64 IoCs
Processes:
WINWORD.EXEdescription ioc process Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\.htm\OpenWithList\Microsoft Excel\shell\edit\ddeexec\ = "[open(\"%1\")]" WINWORD.EXE Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\.htm\OpenWithList\Microsoft Publisher\shell\edit\ = "&Open" WINWORD.EXE Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\.htm\OpenWithList\Microsoft Publisher\shell\edit\command\ = "\"C:\\Program Files (x86)\\Microsoft Office\\Office14\\MSPUB.EXE\" %1" WINWORD.EXE Key created \REGISTRY\MACHINE\SOFTWARE\Classes\.htm\OpenWithList\Excel.exe\shell\edit WINWORD.EXE Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\.htm\OpenWithList\Microsoft Excel\shell\edit\ddeexec\application\ = "Excel" WINWORD.EXE Set value (data) \REGISTRY\MACHINE\SOFTWARE\Classes\.mht\OpenWithList\Excel.exe\shell\edit\command\command = 7800620027004200560035002100210021002100210021002100210021004d004b004b0053006b0045005800430045004c00460069006c00650073003e00560069006a00710042006f006600280059003800270077002100460049006400310067004c00510020002f0064006400650000000000 WINWORD.EXE Set value (data) \REGISTRY\MACHINE\SOFTWARE\Classes\.htm\OpenWithList\Microsoft Excel\shell\edit\command\command = 7800620027004200560035002100210021002100210021002100210021004d004b004b0053006b0045005800430045004c00460069006c00650073003e00560069006a00710042006f006600280059003800270077002100460049006400310067004c00510020002f0064006400650000000000 WINWORD.EXE Key created \REGISTRY\MACHINE\SOFTWARE\Classes\mhtmlfile WINWORD.EXE Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\.mht\OpenWithList\Microsoft Excel\shell\edit\ddeexec\ = "[open(\"%1\")]" WINWORD.EXE Key created \REGISTRY\MACHINE\SOFTWARE\Classes\.mht\OpenWithList\Excel.exe\shell\edit\ddeexec\application WINWORD.EXE Key created \REGISTRY\MACHINE\SOFTWARE\Classes\.htm\OpenWithList WINWORD.EXE Key deleted \REGISTRY\MACHINE\SOFTWARE\Classes\mhtmlfile\shell\Edit\command WINWORD.EXE Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\mhtmlfile\shellex\IconHandler\ = "{42042206-2D85-11D3-8CFF-005004838597}" WINWORD.EXE Key created \REGISTRY\MACHINE\SOFTWARE\Classes\.mht\OpenWithList\WinWord.exe WINWORD.EXE Key created \REGISTRY\MACHINE\SOFTWARE\Classes\.mht\OpenWithList\Microsoft Excel\shell\edit\ddeexec\topic WINWORD.EXE Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{42042206-2D85-11D3-8CFF-005004838597}\Version WINWORD.EXE Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\.htm\OpenWithList\MSPub.exe\shell\edit\ = "&Open" WINWORD.EXE Key deleted \REGISTRY\MACHINE\SOFTWARE\Classes\mhtmlfile\shell\Print\command WINWORD.EXE Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\.mht\OpenWithList\WinWord.exe\shell\edit\ = "&Open" WINWORD.EXE Key deleted \REGISTRY\MACHINE\SOFTWARE\Classes\mhtmlfile\shell\Edit WINWORD.EXE Key deleted \REGISTRY\MACHINE\SOFTWARE\Classes\htmlfile\shell\Print WINWORD.EXE Key created \REGISTRY\MACHINE\SOFTWARE\Classes\.htm\OpenWithList\MSPub.exe\shell\edit\command WINWORD.EXE Key created \REGISTRY\MACHINE\SOFTWARE\Classes\mhtmlfile\DefaultIcon WINWORD.EXE Key created \REGISTRY\MACHINE\SOFTWARE\Classes\.mht\OpenWithList\Microsoft Excel\shell\edit\ddeexec\application WINWORD.EXE Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\mhtmlfile\shell\Edit\command\ = "\"C:\\Program Files (x86)\\Microsoft Office\\Office14\\msohtmed.exe\" %1" WINWORD.EXE Key deleted \REGISTRY\MACHINE\SOFTWARE\Classes\mhtmlfile\shell\Print WINWORD.EXE Key created \REGISTRY\MACHINE\SOFTWARE\Classes\.mht\OpenWithList\MSPub.exe\shell\edit WINWORD.EXE Set value (data) \REGISTRY\MACHINE\SOFTWARE\Classes\.mht\OpenWithList\Microsoft Publisher\shell\edit\command\command = 7800620027004200560035002100210021002100210021002100210021004d004b004b0053006b005000750062005000720069006d006100720079003e00520024006e0075006a0053005700460065003f007d0061004c00720052007000390078004000570020002500310000000000 WINWORD.EXE Key created \REGISTRY\MACHINE\SOFTWARE\Classes\.htm\OpenWithList\WinWord.exe WINWORD.EXE Key created \REGISTRY\MACHINE\SOFTWARE\Classes\.htm\OpenWithList\Excel.exe\shell\edit\ddeexec\application WINWORD.EXE Key created \REGISTRY\MACHINE\SOFTWARE\Classes\.htm\OpenWithList\MSPub.exe\shell\edit WINWORD.EXE Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\mhtmlfile\shell\Edit\ = "&Edit" WINWORD.EXE Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\.mht\OpenWithList\MSPub.exe\shell\edit\command\ = "\"C:\\Program Files (x86)\\Microsoft Office\\Office14\\MSPUB.EXE\" %1" WINWORD.EXE Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\.htm\OpenWithList\WinWord.exe\shell\edit\command\ = "\"C:\\Program Files (x86)\\Microsoft Office\\Office14\\WINWORD.EXE\" /n \"%1\"" WINWORD.EXE Key created \REGISTRY\MACHINE\SOFTWARE\Classes\mhtmlfile\shell\Edit WINWORD.EXE Key created \REGISTRY\MACHINE\SOFTWARE\Classes\.mht\OpenWithList\Microsoft Word WINWORD.EXE Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\.mht\OpenWithList\Microsoft Excel\shell\edit\ = "&Open" WINWORD.EXE Key created \REGISTRY\MACHINE\SOFTWARE\Classes\.mht\OpenWithList WINWORD.EXE Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\.mht\OpenWithList\Microsoft Word\shell\edit\command\ = "\"C:\\Program Files (x86)\\Microsoft Office\\Office14\\WINWORD.EXE\" /n \"%1\"" WINWORD.EXE Set value (data) \REGISTRY\MACHINE\SOFTWARE\Classes\.mht\OpenWithList\Microsoft Excel\shell\edit\command\command = 7800620027004200560035002100210021002100210021002100210021004d004b004b0053006b0045005800430045004c00460069006c00650073003e00560069006a00710042006f006600280059003800270077002100460049006400310067004c00510020002f0064006400650000000000 WINWORD.EXE Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\.mht\OpenWithList\Excel.exe\shell\edit\ddeexec\application\ = "Excel" WINWORD.EXE Key created \REGISTRY\MACHINE\SOFTWARE\Classes\.htm WINWORD.EXE Set value (data) \REGISTRY\MACHINE\SOFTWARE\Classes\.htm\OpenWithList\Microsoft Word\shell\edit\command\command = 7800620027004200560035002100210021002100210021002100210021004d004b004b0053006b0057004f0052004400460069006c00650073003e00620069002400540021005600210030005a003d007b0050006b00300076006d007e0041005a00750020002f006e002000220025003100220000000000 WINWORD.EXE Set value (data) \REGISTRY\MACHINE\SOFTWARE\Classes\.mht\OpenWithList\WinWord.exe\shell\edit\command\command = 7800620027004200560035002100210021002100210021002100210021004d004b004b0053006b0057004f0052004400460069006c00650073003e00620069002400540021005600210030005a003d007b0050006b00300076006d007e0041005a00750020002f006e002000220025003100220000000000 WINWORD.EXE Key created \REGISTRY\MACHINE\SOFTWARE\Classes\.mht\OpenWithList\Microsoft Publisher\shell\edit\command WINWORD.EXE Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\.htm\OpenWithList\Excel.exe\shell\edit\ddeexec\application\ = "Excel" WINWORD.EXE Key created \REGISTRY\MACHINE\SOFTWARE\Classes\.mht\OpenWithList\WinWord.exe\shell\edit\command WINWORD.EXE Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID WINWORD.EXE Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{42042206-2D85-11D3-8CFF-005004838597} WINWORD.EXE Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\htmlfile\shellex\IconHandler\ = "{42042206-2D85-11D3-8CFF-005004838597}" WINWORD.EXE Key created \REGISTRY\MACHINE\SOFTWARE\Classes\.htm\OpenWithList\Excel.exe\shell\edit\command WINWORD.EXE Key created \REGISTRY\MACHINE\SOFTWARE\Classes\htmlfile\shell\Edit WINWORD.EXE Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\.htm\OpenWithList\Microsoft Excel\shell\edit\ = "&Open" WINWORD.EXE Key created \REGISTRY\MACHINE\SOFTWARE\Classes\mhtmlfile\ShellEx WINWORD.EXE Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\.mht\OpenWithList\Microsoft Excel\shell\edit\ddeexec\application\ = "Excel" WINWORD.EXE Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\.mht\OpenWithList\Microsoft Publisher\shell\edit\command\ = "\"C:\\Program Files (x86)\\Microsoft Office\\Office14\\MSPUB.EXE\" %1" WINWORD.EXE Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\.htm\OpenWithList\Excel.exe\shell\edit\ddeexec\ = "[open(\"%1\")]" WINWORD.EXE Key created \REGISTRY\MACHINE\SOFTWARE\Classes\mhtmlfile\shellex\IconHandler WINWORD.EXE Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{42042206-2D85-11D3-8CFF-005004838597}\Version\14\ = "C:\\Program Files (x86)\\Microsoft Office\\Office14\\msohtmed.exe" WINWORD.EXE Key created \REGISTRY\MACHINE\SOFTWARE\Classes\htmlfile WINWORD.EXE Key created \REGISTRY\MACHINE\SOFTWARE\Classes\.htm\OpenWithList\Excel.exe WINWORD.EXE Key created \REGISTRY\MACHINE\SOFTWARE\Classes\.htm\OpenWithList\Microsoft Excel\shell\edit\ddeexec\application WINWORD.EXE Key deleted \REGISTRY\MACHINE\SOFTWARE\Classes\htmlfile\shell\Edit\command WINWORD.EXE Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\htmlfile\DefaultIcon\ = "\"%1\"" WINWORD.EXE -
Suspicious behavior: AddClipboardFormatListener 1 IoCs
Processes:
EXCEL.EXEpid process 1948 EXCEL.EXE -
Suspicious behavior: EnumeratesProcesses 3 IoCs
Processes:
vbc.exeRegSvcs.exepid process 1512 vbc.exe 1512 vbc.exe 1700 RegSvcs.exe -
Suspicious use of AdjustPrivilegeToken 2 IoCs
Processes:
vbc.exeRegSvcs.exedescription pid process Token: SeDebugPrivilege 1512 vbc.exe Token: SeDebugPrivilege 1700 RegSvcs.exe -
Suspicious use of SetWindowsHookEx 5 IoCs
Processes:
EXCEL.EXEWINWORD.EXEpid process 1948 EXCEL.EXE 1948 EXCEL.EXE 1948 EXCEL.EXE 1216 WINWORD.EXE 1216 WINWORD.EXE -
Suspicious use of WriteProcessMemory 27 IoCs
Processes:
EQNEDT32.EXEWINWORD.EXEvbc.exedescription pid process target process PID 576 wrote to memory of 1512 576 EQNEDT32.EXE vbc.exe PID 576 wrote to memory of 1512 576 EQNEDT32.EXE vbc.exe PID 576 wrote to memory of 1512 576 EQNEDT32.EXE vbc.exe PID 576 wrote to memory of 1512 576 EQNEDT32.EXE vbc.exe PID 1216 wrote to memory of 460 1216 WINWORD.EXE splwow64.exe PID 1216 wrote to memory of 460 1216 WINWORD.EXE splwow64.exe PID 1216 wrote to memory of 460 1216 WINWORD.EXE splwow64.exe PID 1216 wrote to memory of 460 1216 WINWORD.EXE splwow64.exe PID 1512 wrote to memory of 1728 1512 vbc.exe RegSvcs.exe PID 1512 wrote to memory of 1728 1512 vbc.exe RegSvcs.exe PID 1512 wrote to memory of 1728 1512 vbc.exe RegSvcs.exe PID 1512 wrote to memory of 1728 1512 vbc.exe RegSvcs.exe PID 1512 wrote to memory of 1728 1512 vbc.exe RegSvcs.exe PID 1512 wrote to memory of 1728 1512 vbc.exe RegSvcs.exe PID 1512 wrote to memory of 1728 1512 vbc.exe RegSvcs.exe PID 1512 wrote to memory of 1700 1512 vbc.exe RegSvcs.exe PID 1512 wrote to memory of 1700 1512 vbc.exe RegSvcs.exe PID 1512 wrote to memory of 1700 1512 vbc.exe RegSvcs.exe PID 1512 wrote to memory of 1700 1512 vbc.exe RegSvcs.exe PID 1512 wrote to memory of 1700 1512 vbc.exe RegSvcs.exe PID 1512 wrote to memory of 1700 1512 vbc.exe RegSvcs.exe PID 1512 wrote to memory of 1700 1512 vbc.exe RegSvcs.exe PID 1512 wrote to memory of 1700 1512 vbc.exe RegSvcs.exe PID 1512 wrote to memory of 1700 1512 vbc.exe RegSvcs.exe PID 1512 wrote to memory of 1700 1512 vbc.exe RegSvcs.exe PID 1512 wrote to memory of 1700 1512 vbc.exe RegSvcs.exe PID 1512 wrote to memory of 1700 1512 vbc.exe RegSvcs.exe -
outlook_office_path 1 IoCs
Processes:
RegSvcs.exedescription ioc process Key opened \REGISTRY\USER\S-1-5-21-2277218442-1199762539-2004043321-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 RegSvcs.exe -
outlook_win_path 1 IoCs
Processes:
RegSvcs.exedescription ioc process Key opened \REGISTRY\USER\S-1-5-21-2277218442-1199762539-2004043321-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 RegSvcs.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\88160011B.xlsx1⤵
- Enumerates system info in registry
- Modifies Internet Explorer settings
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
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C:\Program Files (x86)\Microsoft Office\Office14\WINWORD.EXE"C:\Program Files (x86)\Microsoft Office\Office14\WINWORD.EXE" -Embedding1⤵
- Modifies Internet Explorer settings
- Modifies registry class
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
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C:\Windows\splwow64.exeC:\Windows\splwow64.exe 122882⤵
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C:\Program Files (x86)\Common Files\Microsoft Shared\EQUATION\EQNEDT32.EXE"C:\Program Files (x86)\Common Files\Microsoft Shared\EQUATION\EQNEDT32.EXE" -Embedding1⤵
- Blocklisted process makes network request
- Loads dropped DLL
- Launches Equation Editor
- Suspicious use of WriteProcessMemory
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C:\Users\Public\vbc.exe"C:\Users\Public\vbc.exe"2⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
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C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe"C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe"3⤵
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C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe"C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe"3⤵
- Accesses Microsoft Outlook profiles
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- outlook_office_path
- outlook_win_path
Network
MITRE ATT&CK Matrix ATT&CK v6
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Downloads
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C:\Users\Admin\AppData\Local\Microsoft\Windows\Temporary Internet Files\Content.IE5\J2W67U9P\receipt[1].docFilesize
20KB
MD58531e389071583bf24756116a1770018
SHA1e99795a4a4cf509a4d8efec6c573e3be4b3477db
SHA2564aa2cd3f90eb232a9ea09d5e49fa1b94a038313bb482faecd2961778174f8e88
SHA512c117d141b0d03da382b10ba567532dc3b6d9768f5bc71193da6ebec0b47cc030bdfd0ef7d0a110c28daacc2d6be2a723de0001476104503ae66089a864bb5fe0
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C:\Users\Public\vbc.exeFilesize
561KB
MD5c01e2956b20349d01fd6f43f9a7ef0c3
SHA14799db2196420cc90b24e28519ed459119d71fca
SHA256f479546b3b39902eed49ccdd2749bde0d6ffb260311f8a8240fa69700e2a200e
SHA512e3b466d2e32b1b3e18cc8669f957cf8dc66ca85827a2f40083931e0d72da8f67d8b01b71fea9bd8f601143d071f729184b9685198a974c247aaac7958141f469
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C:\Users\Public\vbc.exeFilesize
561KB
MD5c01e2956b20349d01fd6f43f9a7ef0c3
SHA14799db2196420cc90b24e28519ed459119d71fca
SHA256f479546b3b39902eed49ccdd2749bde0d6ffb260311f8a8240fa69700e2a200e
SHA512e3b466d2e32b1b3e18cc8669f957cf8dc66ca85827a2f40083931e0d72da8f67d8b01b71fea9bd8f601143d071f729184b9685198a974c247aaac7958141f469
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\Users\Public\vbc.exeFilesize
561KB
MD5c01e2956b20349d01fd6f43f9a7ef0c3
SHA14799db2196420cc90b24e28519ed459119d71fca
SHA256f479546b3b39902eed49ccdd2749bde0d6ffb260311f8a8240fa69700e2a200e
SHA512e3b466d2e32b1b3e18cc8669f957cf8dc66ca85827a2f40083931e0d72da8f67d8b01b71fea9bd8f601143d071f729184b9685198a974c247aaac7958141f469
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\Users\Public\vbc.exeFilesize
561KB
MD5c01e2956b20349d01fd6f43f9a7ef0c3
SHA14799db2196420cc90b24e28519ed459119d71fca
SHA256f479546b3b39902eed49ccdd2749bde0d6ffb260311f8a8240fa69700e2a200e
SHA512e3b466d2e32b1b3e18cc8669f957cf8dc66ca85827a2f40083931e0d72da8f67d8b01b71fea9bd8f601143d071f729184b9685198a974c247aaac7958141f469
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\Users\Public\vbc.exeFilesize
561KB
MD5c01e2956b20349d01fd6f43f9a7ef0c3
SHA14799db2196420cc90b24e28519ed459119d71fca
SHA256f479546b3b39902eed49ccdd2749bde0d6ffb260311f8a8240fa69700e2a200e
SHA512e3b466d2e32b1b3e18cc8669f957cf8dc66ca85827a2f40083931e0d72da8f67d8b01b71fea9bd8f601143d071f729184b9685198a974c247aaac7958141f469
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\Users\Public\vbc.exeFilesize
561KB
MD5c01e2956b20349d01fd6f43f9a7ef0c3
SHA14799db2196420cc90b24e28519ed459119d71fca
SHA256f479546b3b39902eed49ccdd2749bde0d6ffb260311f8a8240fa69700e2a200e
SHA512e3b466d2e32b1b3e18cc8669f957cf8dc66ca85827a2f40083931e0d72da8f67d8b01b71fea9bd8f601143d071f729184b9685198a974c247aaac7958141f469
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memory/460-76-0x000007FEFBF21000-0x000007FEFBF23000-memory.dmpFilesize
8KB
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memory/460-73-0x0000000000000000-mapping.dmp
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memory/1216-79-0x00000000727AD000-0x00000000727B8000-memory.dmpFilesize
44KB
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memory/1216-59-0x000000006BA61000-0x000000006BA64000-memory.dmpFilesize
12KB
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memory/1216-63-0x00000000727AD000-0x00000000727B8000-memory.dmpFilesize
44KB
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memory/1512-74-0x0000000000A60000-0x0000000000AF2000-memory.dmpFilesize
584KB
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memory/1512-77-0x0000000000470000-0x0000000000490000-memory.dmpFilesize
128KB
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memory/1512-70-0x0000000000000000-mapping.dmp
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memory/1512-82-0x0000000004780000-0x00000000047A6000-memory.dmpFilesize
152KB
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memory/1512-81-0x0000000005CF0000-0x0000000005D5A000-memory.dmpFilesize
424KB
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memory/1512-80-0x0000000000710000-0x000000000071E000-memory.dmpFilesize
56KB
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memory/1700-84-0x0000000000400000-0x0000000000426000-memory.dmpFilesize
152KB
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memory/1700-88-0x0000000000400000-0x0000000000426000-memory.dmpFilesize
152KB
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memory/1700-92-0x0000000000400000-0x0000000000426000-memory.dmpFilesize
152KB
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memory/1700-94-0x0000000000400000-0x0000000000426000-memory.dmpFilesize
152KB
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memory/1700-89-0x0000000000400000-0x0000000000426000-memory.dmpFilesize
152KB
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memory/1700-90-0x00000000004202AE-mapping.dmp
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memory/1700-83-0x0000000000400000-0x0000000000426000-memory.dmpFilesize
152KB
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memory/1700-86-0x0000000000400000-0x0000000000426000-memory.dmpFilesize
152KB
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memory/1948-54-0x000000002F0E1000-0x000000002F0E4000-memory.dmpFilesize
12KB
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memory/1948-58-0x0000000076721000-0x0000000076723000-memory.dmpFilesize
8KB
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memory/1948-57-0x00000000727AD000-0x00000000727B8000-memory.dmpFilesize
44KB
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memory/1948-78-0x00000000727AD000-0x00000000727B8000-memory.dmpFilesize
44KB
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memory/1948-56-0x000000005FFF0000-0x0000000060000000-memory.dmpFilesize
64KB
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memory/1948-55-0x00000000717C1000-0x00000000717C3000-memory.dmpFilesize
8KB