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Analysis Report Det2772.xls

Overview

General Information

Sample Name:Det2772.xls
Analysis ID:299451
MD5:def969cd0e44416c19aa73f6bc55417c
SHA1:74fa0096843986e19affcf30747de9a602cdec69
SHA256:45ccba341f5a78e22dc6bfebe6f516bddabc0e5198edb55cfadaeac895ca1525
Tags:xlszloader

Most interesting Screenshot:

Detection

Hidden Macro 4.0
Score:68
Range:0 - 100
Whitelisted:false
Confidence:100%

Signatures

Multi AV Scanner detection for submitted file
Document exploit detected (process start blacklist hit)
Found Excel 4.0 Macro with suspicious formulas
Found abnormal large hidden Excel 4.0 Macro sheet
Injects code into the Windows Explorer (explorer.exe)
Yara detected password protected xls with embedded macros
Contains capabilities to detect virtual machines
May sleep (evasive loops) to hinder dynamic analysis

Classification

Startup

  • System is w7x64
  • EXCEL.EXE (PID: 1296 cmdline: 'C:\Program Files\Microsoft Office\Office14\EXCEL.EXE' /automation -Embedding MD5: 5FB0A0F93382ECD19F5F499A5CAA59F0)
    • explorer.exe (PID: 2516 cmdline: explorer C:\Windows\System32\cmd.exe MD5: 38AE1B3C38FAEF56FE4907922F0385BA)
  • explorer.exe (PID: 2500 cmdline: C:\Windows\explorer.exe /factory,{75dff2b7-6936-4c06-a8bb-676a7b00b24b} -Embedding MD5: 38AE1B3C38FAEF56FE4907922F0385BA)
    • cmd.exe (PID: 1508 cmdline: 'C:\Windows\System32\cmd.exe' MD5: 5746BD7E255DD6A8AFA06F7C42C1BA41)
  • cleanup

Malware Configuration

No configs have been found

Yara Overview

Initial Sample

SourceRuleDescriptionAuthorStrings
Det2772.xlsJoeSecurity_PasswordProtectedXlsWithEmbeddedMacrosYara detected password protected xls with embedded macrosJoe Security

    Sigma Overview

    No Sigma rule has matched

    Signature Overview

    Click to jump to signature section

    Show All Signature Results

    AV Detection:

    barindex
    Multi AV Scanner detection for submitted fileShow sources
    Source: Det2772.xlsReversingLabs: Detection: 12%

    Software Vulnerabilities:

    barindex
    Document exploit detected (process start blacklist hit)Show sources
    Source: C:\Program Files\Microsoft Office\Office14\EXCEL.EXEProcess created: C:\Windows\explorer.exeJump to behavior
    Source: explorer.exe, 00000002.00000002.2120320071.0000000001C90000.00000002.00000001.sdmp, explorer.exe, 00000003.00000002.2244026028.0000000001E70000.00000002.00000001.sdmpString found in binary or memory: http://schemas.xmlsoap.org/ws/2004/08/addressing/role/anonymous.
    Source: explorer.exe, 00000002.00000002.2120320071.0000000001C90000.00000002.00000001.sdmp, explorer.exe, 00000003.00000002.2244026028.0000000001E70000.00000002.00000001.sdmpString found in binary or memory: http://www.%s.comPA

    System Summary:

    barindex
    Found Excel 4.0 Macro with suspicious formulasShow sources
    Source: Det2772.xlsInitial sample: WORKSPACE
    Found abnormal large hidden Excel 4.0 Macro sheetShow sources
    Source: Det2772.xlsInitial sample: Sheet size: 14187
    Source: classification engineClassification label: mal68.expl.evad.winXLS@6/6@0/0
    Source: C:\Program Files\Microsoft Office\Office14\EXCEL.EXEFile created: C:\Users\user\Desktop\C3FE0000Jump to behavior
    Source: C:\Program Files\Microsoft Office\Office14\EXCEL.EXEFile created: C:\Users\user\AppData\Local\Temp\CVREA9C.tmpJump to behavior
    Source: Det2772.xlsOLE indicator, Workbook stream: true
    Source: C:\Windows\System32\cmd.exeConsole Write: ...................I............M.i.c.r.o.s.o.f.t. .W.i.n.d.o.w.s. .[.V.e.r.s.i.o.n. .6...1...7.6.0.1.]...-.......-.....H.........-.............Jump to behavior
    Source: C:\Windows\System32\cmd.exeConsole Write: ................................................d1..........................*...........`{.I.......I..............-.............X.-.............Jump to behavior
    Source: C:\Windows\System32\cmd.exeConsole Write: ................................................d1..........................*...........`{.I.......I....................~.......X.-.............Jump to behavior
    Source: C:\Windows\System32\cmd.exeConsole Write: ................................................d1..........................*...........`{.I.......I..............-.............X.-.............Jump to behavior
    Source: C:\Windows\System32\cmd.exeConsole Write: ........................................................................j...*..............I.......I............8.-.............................Jump to behavior
    Source: C:\Windows\System32\cmd.exeConsole Write: ................................C.:.\.W.i.n.d.o.w.s.\.s.y.s.t.e.m.3.2.>....................I.... ..I............h.-.....(..................I....Jump to behavior
    Source: unknownProcess created: C:\Windows\explorer.exe
    Source: unknownProcess created: C:\Windows\explorer.exe
    Source: C:\Program Files\Microsoft Office\Office14\EXCEL.EXEProcess created: C:\Windows\explorer.exeJump to behavior
    Source: C:\Program Files\Microsoft Office\Office14\EXCEL.EXEFile read: C:\Users\desktop.iniJump to behavior
    Source: C:\Windows\explorer.exeKey opened: HKEY_LOCAL_MACHINE\Software\Policies\Microsoft\Windows\Safer\CodeIdentifiersJump to behavior
    Source: Det2772.xlsReversingLabs: Detection: 12%
    Source: unknownProcess created: C:\Program Files\Microsoft Office\Office14\EXCEL.EXE 'C:\Program Files\Microsoft Office\Office14\EXCEL.EXE' /automation -Embedding
    Source: unknownProcess created: C:\Windows\explorer.exe explorer C:\Windows\System32\cmd.exe
    Source: unknownProcess created: C:\Windows\explorer.exe C:\Windows\explorer.exe /factory,{75dff2b7-6936-4c06-a8bb-676a7b00b24b} -Embedding
    Source: unknownProcess created: C:\Windows\System32\cmd.exe 'C:\Windows\System32\cmd.exe'
    Source: C:\Program Files\Microsoft Office\Office14\EXCEL.EXEProcess created: C:\Windows\explorer.exe explorer C:\Windows\System32\cmd.exeJump to behavior
    Source: C:\Windows\explorer.exeProcess created: C:\Windows\System32\cmd.exe 'C:\Windows\System32\cmd.exe' Jump to behavior
    Source: C:\Windows\explorer.exeKey value queried: HKEY_LOCAL_MACHINE\SOFTWARE\Classes\CLSID\{1F849CCE-2546-4B9F-B03E-4004781BDC40}\InProcServer32Jump to behavior
    Source: Window RecorderWindow detected: More than 3 window changes detected
    Source: C:\Program Files\Microsoft Office\Office14\EXCEL.EXEKey opened: HKEY_CURRENT_USER\Software\Microsoft\Office\14.0\Excel\Resiliency\StartupItemsJump to behavior
    Source: C:\Program Files\Microsoft Office\Office14\EXCEL.EXEFile opened: C:\Windows\WinSxS\amd64_microsoft.vc90.crt_1fc8b3b9a1e18e3b_9.0.30729.4940_none_08e4299fa83d7e3c\MSVCR90.dllJump to behavior
    Source: Det2772.xlsInitial sample: OLE indicators vbamacros = False
    Source: Det2772.xlsInitial sample: OLE indicators encrypted = True
    Source: C:\Program Files\Microsoft Office\Office14\EXCEL.EXEProcess information set: NOOPENFILEERRORBOXJump to behavior
    Source: C:\Program Files\Microsoft Office\Office14\EXCEL.EXEProcess information set: NOOPENFILEERRORBOXJump to behavior
    Source: C:\Program Files\Microsoft Office\Office14\EXCEL.EXEProcess information set: NOOPENFILEERRORBOXJump to behavior
    Source: C:\Program Files\Microsoft Office\Office14\EXCEL.EXEProcess information set: NOOPENFILEERRORBOXJump to behavior
    Source: C:\Program Files\Microsoft Office\Office14\EXCEL.EXEProcess information set: NOOPENFILEERRORBOXJump to behavior
    Source: C:\Program Files\Microsoft Office\Office14\EXCEL.EXEProcess information set: NOOPENFILEERRORBOXJump to behavior
    Source: C:\Program Files\Microsoft Office\Office14\EXCEL.EXEProcess information set: NOOPENFILEERRORBOXJump to behavior
    Source: C:\Program Files\Microsoft Office\Office14\EXCEL.EXEProcess information set: NOOPENFILEERRORBOXJump to behavior
    Source: C:\Program Files\Microsoft Office\Office14\EXCEL.EXEProcess information set: NOOPENFILEERRORBOXJump to behavior
    Source: C:\Program Files\Microsoft Office\Office14\EXCEL.EXEProcess information set: NOOPENFILEERRORBOXJump to behavior
    Source: C:\Program Files\Microsoft Office\Office14\EXCEL.EXEProcess information set: NOOPENFILEERRORBOXJump to behavior
    Source: C:\Program Files\Microsoft Office\Office14\EXCEL.EXEProcess information set: NOOPENFILEERRORBOXJump to behavior
    Source: C:\Program Files\Microsoft Office\Office14\EXCEL.EXEProcess information set: NOOPENFILEERRORBOXJump to behavior
    Source: C:\Program Files\Microsoft Office\Office14\EXCEL.EXEProcess information set: NOOPENFILEERRORBOXJump to behavior
    Source: C:\Program Files\Microsoft Office\Office14\EXCEL.EXEProcess information set: NOOPENFILEERRORBOXJump to behavior
    Source: C:\Program Files\Microsoft Office\Office14\EXCEL.EXEProcess information set: NOOPENFILEERRORBOXJump to behavior
    Source: C:\Program Files\Microsoft Office\Office14\EXCEL.EXEProcess information set: NOOPENFILEERRORBOXJump to behavior
    Source: C:\Program Files\Microsoft Office\Office14\EXCEL.EXEProcess information set: NOOPENFILEERRORBOXJump to behavior
    Source: C:\Program Files\Microsoft Office\Office14\EXCEL.EXEProcess information set: NOOPENFILEERRORBOXJump to behavior
    Source: C:\Program Files\Microsoft Office\Office14\EXCEL.EXEProcess information set: NOOPENFILEERRORBOXJump to behavior
    Source: C:\Program Files\Microsoft Office\Office14\EXCEL.EXEProcess information set: NOOPENFILEERRORBOXJump to behavior
    Source: C:\Program Files\Microsoft Office\Office14\EXCEL.EXEProcess information set: NOOPENFILEERRORBOXJump to behavior
    Source: C:\Program Files\Microsoft Office\Office14\EXCEL.EXEProcess information set: NOOPENFILEERRORBOXJump to behavior
    Source: C:\Program Files\Microsoft Office\Office14\EXCEL.EXEProcess information set: NOOPENFILEERRORBOXJump to behavior
    Source: C:\Program Files\Microsoft Office\Office14\EXCEL.EXEProcess information set: NOOPENFILEERRORBOXJump to behavior
    Source: C:\Program Files\Microsoft Office\Office14\EXCEL.EXEProcess information set: NOOPENFILEERRORBOXJump to behavior
    Source: C:\Program Files\Microsoft Office\Office14\EXCEL.EXEProcess information set: NOOPENFILEERRORBOXJump to behavior
    Source: C:\Program Files\Microsoft Office\Office14\EXCEL.EXEProcess information set: NOOPENFILEERRORBOXJump to behavior
    Source: C:\Program Files\Microsoft Office\Office14\EXCEL.EXEProcess information set: NOOPENFILEERRORBOXJump to behavior
    Source: C:\Program Files\Microsoft Office\Office14\EXCEL.EXEProcess information set: NOOPENFILEERRORBOXJump to behavior
    Source: C:\Program Files\Microsoft Office\Office14\EXCEL.EXEProcess information set: NOOPENFILEERRORBOXJump to behavior
    Source: C:\Program Files\Microsoft Office\Office14\EXCEL.EXEProcess information set: NOOPENFILEERRORBOXJump to behavior
    Source: C:\Program Files\Microsoft Office\Office14\EXCEL.EXEProcess information set: NOOPENFILEERRORBOXJump to behavior
    Source: C:\Program Files\Microsoft Office\Office14\EXCEL.EXEProcess information set: NOOPENFILEERRORBOXJump to behavior
    Source: C:\Program Files\Microsoft Office\Office14\EXCEL.EXEProcess information set: NOOPENFILEERRORBOXJump to behavior
    Source: C:\Program Files\Microsoft Office\Office14\EXCEL.EXEProcess information set: NOOPENFILEERRORBOXJump to behavior
    Source: C:\Program Files\Microsoft Office\Office14\EXCEL.EXEProcess information set: NOOPENFILEERRORBOXJump to behavior
    Source: C:\Program Files\Microsoft Office\Office14\EXCEL.EXEProcess information set: NOOPENFILEERRORBOXJump to behavior
    Source: C:\Program Files\Microsoft Office\Office14\EXCEL.EXEProcess information set: NOOPENFILEERRORBOXJump to behavior
    Source: C:\Program Files\Microsoft Office\Office14\EXCEL.EXEProcess information set: NOOPENFILEERRORBOXJump to behavior
    Source: C:\Program Files\Microsoft Office\Office14\EXCEL.EXEProcess information set: NOOPENFILEERRORBOXJump to behavior
    Source: C:\Program Files\Microsoft Office\Office14\EXCEL.EXEProcess information set: NOOPENFILEERRORBOXJump to behavior
    Source: C:\Program Files\Microsoft Office\Office14\EXCEL.EXEProcess information set: NOOPENFILEERRORBOXJump to behavior
    Source: C:\Program Files\Microsoft Office\Office14\EXCEL.EXEProcess information set: NOOPENFILEERRORBOXJump to behavior
    Source: C:\Program Files\Microsoft Office\Office14\EXCEL.EXEProcess information set: NOOPENFILEERRORBOXJump to behavior
    Source: C:\Program Files\Microsoft Office\Office14\EXCEL.EXEProcess information set: NOOPENFILEERRORBOXJump to behavior
    Source: C:\Windows\explorer.exeProcess information set: NOOPENFILEERRORBOXJump to behavior
    Source: C:\Windows\explorer.exeFile opened / queried: IDE#CdRomNECVMWar_VMware_SATA_CD01_______________1.00____#6&373888b8&0&1.0.0#{53f5630d-b6bf-11d0-94f2-00a0c91efb8b}Jump to behavior
    Source: C:\Windows\explorer.exe TID: 2540Thread sleep time: -60000s >= -30000sJump to behavior
    Source: C:\Windows\explorer.exe TID: 2540Thread sleep time: -60000s >= -30000sJump to behavior
    Source: C:\Windows\explorer.exe TID: 2752Thread sleep time: -60000s >= -30000sJump to behavior
    Source: explorer.exe, 00000003.00000003.2114327650.00000000002CB000.00000004.00000001.sdmpBinary or memory string: \\?\IDE#CdRomNECVMWar_VMware_SATA_CD01_______________1.00____#6&373888b8&0&1.0.0#{53f5630d-b6bf-11d0-94f2-00a0c91efb8b}\\?\STORAGE#Volume#{8a079453-cd11-11ea-a1d0-806e6f6e6963}#0000000000100000#{53f5630d-b6bf-11d0-94f2-00a0c91efb8b}\\?\STORAGE#Volume#{8a079453-cd11-11ea-a1d0-806e6f6e6963}#0000000006500000#{53f5630d-b6bf-11d0-94f2-00a0c91efb8b}]

    HIPS / PFW / Operating System Protection Evasion:

    barindex
    Injects code into the Windows Explorer (explorer.exe)Show sources
    Source: C:\Program Files\Microsoft Office\Office14\EXCEL.EXEMemory written: PID: 2516 base: 50000 value: 01Jump to behavior
    Source: C:\Program Files\Microsoft Office\Office14\EXCEL.EXEMemory written: PID: 2516 base: 50020 value: 9AJump to behavior
    Source: C:\Program Files\Microsoft Office\Office14\EXCEL.EXEMemory written: PID: 2516 base: 7FFFFFD3368 value: 00Jump to behavior
    Yara detected password protected xls with embedded macrosShow sources
    Source: Yara matchFile source: Det2772.xls, type: SAMPLE
    Source: C:\Windows\explorer.exeKey value queried: HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Cryptography MachineGuidJump to behavior

    Mitre Att&ck Matrix

    Initial AccessExecutionPersistencePrivilege EscalationDefense EvasionCredential AccessDiscoveryLateral MovementCollectionExfiltrationCommand and ControlNetwork EffectsRemote Service EffectsImpact
    Valid AccountsCommand and Scripting Interpreter1Path InterceptionProcess Injection11Masquerading1OS Credential DumpingSecurity Software Discovery11Remote ServicesData from Local SystemExfiltration Over Other Network MediumData ObfuscationEavesdrop on Insecure Network CommunicationRemotely Track Device Without AuthorizationModify System Partition
    Default AccountsScripting2Boot or Logon Initialization ScriptsBoot or Logon Initialization ScriptsVirtualization/Sandbox Evasion2LSASS MemoryVirtualization/Sandbox Evasion2Remote Desktop ProtocolData from Removable MediaExfiltration Over BluetoothJunk DataExploit SS7 to Redirect Phone Calls/SMSRemotely Wipe Data Without AuthorizationDevice Lockout
    Domain AccountsExploitation for Client Execution1Logon Script (Windows)Logon Script (Windows)Process Injection11Security Account ManagerFile and Directory Discovery1SMB/Windows Admin SharesData from Network Shared DriveAutomated ExfiltrationSteganographyExploit SS7 to Track Device LocationObtain Device Cloud BackupsDelete Device Data
    Local AccountsAt (Windows)Logon Script (Mac)Logon Script (Mac)Scripting2NTDSSystem Information Discovery3Distributed Component Object ModelInput CaptureScheduled TransferProtocol ImpersonationSIM Card SwapCarrier Billing Fraud

    Behavior Graph

    Hide Legend

    Legend:

    • Process
    • Signature
    • Created File
    • DNS/IP Info
    • Is Dropped
    • Is Windows Process
    • Number of created Registry Values
    • Number of created Files
    • Visual Basic
    • Delphi
    • Java
    • .Net C# or VB.NET
    • C, C++ or other language
    • Is malicious
    • Internet

    Screenshots

    Thumbnails

    This section contains all screenshots as thumbnails, including those not shown in the slideshow.