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Analysis Report CaixaBank Payments Consumer Factura Leasing del 22 DE FEBRERO DE 2021 Contrato 7621780..exe

Overview

General Information

Sample Name:CaixaBank Payments Consumer Factura Leasing del 22 DE FEBRERO DE 2021 Contrato 7621780..exe
Analysis ID:356558
MD5:4b0c59e06d56f96b602535d32ef842eb
SHA1:bd1fc302cd46654ede8c914438f8dc12552cdf71
SHA256:83c3850412a66c31e48de8bb8e252982f52b3482a79fadad65b48692a1030a89

Most interesting Screenshot:

Detection

GuLoader
Score:88
Range:0 - 100
Whitelisted:false
Confidence:100%

Signatures

Multi AV Scanner detection for submitted file
Potential malicious icon found
Yara detected GuLoader
Detected RDTSC dummy instruction sequence (likely for instruction hammering)
Executable has a suspicious name (potential lure to open the executable)
Initial sample is a PE file and has a suspicious name
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Tries to detect virtualization through RDTSC time measurements
Yara detected VB6 Downloader Generic
Abnormal high CPU Usage
Contains functionality for execution timing, often used to detect debuggers
Contains functionality to query CPU information (cpuid)
Contains functionality to read the PEB
Detected potential crypto function
PE file contains strange resources
Sample file is different than original file name gathered from version info
Uses 32bit PE files
Uses code obfuscation techniques (call, push, ret)

Classification

Startup

  • System is w10x64
  • cleanup

Malware Configuration

No configs have been found

Yara Overview

Memory Dumps

SourceRuleDescriptionAuthorStrings
Process Memory Space: CaixaBank Payments Consumer Factura Leasing del 22 DE FEBRERO DE 2021 Contrato 7621780..exe PID: 6048JoeSecurity_VB6DownloaderGenericYara detected VB6 Downloader GenericJoe Security
    Process Memory Space: CaixaBank Payments Consumer Factura Leasing del 22 DE FEBRERO DE 2021 Contrato 7621780..exe PID: 6048JoeSecurity_GuLoaderYara detected GuLoaderJoe 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: CaixaBank Payments Consumer Factura Leasing del 22 DE FEBRERO DE 2021 Contrato 7621780..exeVirustotal: Detection: 54%Perma Link
      Source: CaixaBank Payments Consumer Factura Leasing del 22 DE FEBRERO DE 2021 Contrato 7621780..exeMetadefender: Detection: 21%Perma Link
      Source: CaixaBank Payments Consumer Factura Leasing del 22 DE FEBRERO DE 2021 Contrato 7621780..exeReversingLabs: Detection: 64%

      Compliance:

      barindex
      Uses 32bit PE filesShow sources
      Source: CaixaBank Payments Consumer Factura Leasing del 22 DE FEBRERO DE 2021 Contrato 7621780..exeStatic PE information: LOCAL_SYMS_STRIPPED, 32BIT_MACHINE, EXECUTABLE_IMAGE, LINE_NUMS_STRIPPED, RELOCS_STRIPPED

      System Summary:

      barindex
      Potential malicious icon foundShow sources
      Source: initial sampleIcon embedded in PE file: bad icon match: 20047c7c70f0e004
      Executable has a suspicious name (potential lure to open the executable)Show sources
      Source: CaixaBank Payments Consumer Factura Leasing del 22 DE FEBRERO DE 2021 Contrato 7621780..exeStatic file information: Suspicious name
      Initial sample is a PE file and has a suspicious nameShow sources
      Source: initial sampleStatic PE information: Filename: CaixaBank Payments Consumer Factura Leasing del 22 DE FEBRERO DE 2021 Contrato 7621780..exe
      Source: C:\Users\user\Desktop\CaixaBank Payments Consumer Factura Leasing del 22 DE FEBRERO DE 2021 Contrato 7621780..exeProcess Stats: CPU usage > 98%
      Source: C:\Users\user\Desktop\CaixaBank Payments Consumer Factura Leasing del 22 DE FEBRERO DE 2021 Contrato 7621780..exeCode function: 0_2_004013B00_2_004013B0
      Source: CaixaBank Payments Consumer Factura Leasing del 22 DE FEBRERO DE 2021 Contrato 7621780..exeStatic PE information: Resource name: RT_ICON type: GLS_BINARY_LSB_FIRST
      Source: CaixaBank Payments Consumer Factura Leasing del 22 DE FEBRERO DE 2021 Contrato 7621780..exe, 00000000.00000002.1173000183.0000000000410000.00000002.00020000.sdmpBinary or memory string: OriginalFilenameNarro3.exe vs CaixaBank Payments Consumer Factura Leasing del 22 DE FEBRERO DE 2021 Contrato 7621780..exe
      Source: CaixaBank Payments Consumer Factura Leasing del 22 DE FEBRERO DE 2021 Contrato 7621780..exe, 00000000.00000002.1173308848.0000000002090000.00000002.00000001.sdmpBinary or memory string: OriginalFilenameuser32j% vs CaixaBank Payments Consumer Factura Leasing del 22 DE FEBRERO DE 2021 Contrato 7621780..exe
      Source: CaixaBank Payments Consumer Factura Leasing del 22 DE FEBRERO DE 2021 Contrato 7621780..exeBinary or memory string: OriginalFilenameNarro3.exe vs CaixaBank Payments Consumer Factura Leasing del 22 DE FEBRERO DE 2021 Contrato 7621780..exe
      Source: CaixaBank Payments Consumer Factura Leasing del 22 DE FEBRERO DE 2021 Contrato 7621780..exeStatic PE information: LOCAL_SYMS_STRIPPED, 32BIT_MACHINE, EXECUTABLE_IMAGE, LINE_NUMS_STRIPPED, RELOCS_STRIPPED
      Source: classification engineClassification label: mal88.rans.troj.evad.winEXE@1/0@0/0
      Source: CaixaBank Payments Consumer Factura Leasing del 22 DE FEBRERO DE 2021 Contrato 7621780..exeStatic PE information: Section: .text IMAGE_SCN_MEM_EXECUTE, IMAGE_SCN_CNT_CODE, IMAGE_SCN_MEM_READ
      Source: C:\Users\user\Desktop\CaixaBank Payments Consumer Factura Leasing del 22 DE FEBRERO DE 2021 Contrato 7621780..exeSection loaded: C:\Windows\SysWOW64\msvbvm60.dllJump to behavior
      Source: C:\Users\user\Desktop\CaixaBank Payments Consumer Factura Leasing del 22 DE FEBRERO DE 2021 Contrato 7621780..exeKey opened: HKEY_CURRENT_USER\Software\Policies\Microsoft\Windows\Safer\CodeIdentifiersJump to behavior
      Source: CaixaBank Payments Consumer Factura Leasing del 22 DE FEBRERO DE 2021 Contrato 7621780..exeVirustotal: Detection: 54%
      Source: CaixaBank Payments Consumer Factura Leasing del 22 DE FEBRERO DE 2021 Contrato 7621780..exeMetadefender: Detection: 21%
      Source: CaixaBank Payments Consumer Factura Leasing del 22 DE FEBRERO DE 2021 Contrato 7621780..exeReversingLabs: Detection: 64%

      Data Obfuscation:

      barindex
      Yara detected GuLoaderShow sources
      Source: Yara matchFile source: Process Memory Space: CaixaBank Payments Consumer Factura Leasing del 22 DE FEBRERO DE 2021 Contrato 7621780..exe PID: 6048, type: MEMORY
      Yara detected VB6 Downloader GenericShow sources
      Source: Yara matchFile source: Process Memory Space: CaixaBank Payments Consumer Factura Leasing del 22 DE FEBRERO DE 2021 Contrato 7621780..exe PID: 6048, type: MEMORY
      Source: C:\Users\user\Desktop\CaixaBank Payments Consumer Factura Leasing del 22 DE FEBRERO DE 2021 Contrato 7621780..exeCode function: 0_2_00407201 push ds; retf 0_2_00407240
      Source: C:\Users\user\Desktop\CaixaBank Payments Consumer Factura Leasing del 22 DE FEBRERO DE 2021 Contrato 7621780..exeCode function: 0_2_004082EF push eax; retf 0_2_004082F6
      Source: C:\Users\user\Desktop\CaixaBank Payments Consumer Factura Leasing del 22 DE FEBRERO DE 2021 Contrato 7621780..exeCode function: 0_2_020F5701 push eax; ret 0_2_020F5702
      Source: C:\Users\user\Desktop\CaixaBank Payments Consumer Factura Leasing del 22 DE FEBRERO DE 2021 Contrato 7621780..exeCode function: 0_2_020F534F push es; ret 0_2_020F5357
      Source: C:\Users\user\Desktop\CaixaBank Payments Consumer Factura Leasing del 22 DE FEBRERO DE 2021 Contrato 7621780..exeProcess information set: NOOPENFILEERRORBOXJump to behavior

      Malware Analysis System Evasion:

      barindex
      Detected RDTSC dummy instruction sequence (likely for instruction hammering)Show sources
      Source: C:\Users\user\Desktop\CaixaBank Payments Consumer Factura Leasing del 22 DE FEBRERO DE 2021 Contrato 7621780..exeRDTSC instruction interceptor: First address: 00000000020F5008 second address: 00000000020F5008 instructions:
      Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)Show sources
      Source: CaixaBank Payments Consumer Factura Leasing del 22 DE FEBRERO DE 2021 Contrato 7621780..exe, 00000000.00000002.1173395920.00000000020F0000.00000040.00000001.sdmpBinary or memory string: C:\PROGRAM FILES\QEMU-GA\QEMU-GA.EXEF9
      Source: CaixaBank Payments Consumer Factura Leasing del 22 DE FEBRERO DE 2021 Contrato 7621780..exeBinary or memory string: C:\PROGRAM FILES\QEMU-GA\QEMU-GA.EXE
      Tries to detect virtualization through RDTSC time measurementsShow sources
      Source: C:\Users\user\Desktop\CaixaBank Payments Consumer Factura Leasing del 22 DE FEBRERO DE 2021 Contrato 7621780..exeRDTSC instruction interceptor: First address: 00000000020F5008 second address: 00000000020F5008 instructions:
      Source: C:\Users\user\Desktop\CaixaBank Payments Consumer Factura Leasing del 22 DE FEBRERO DE 2021 Contrato 7621780..exeCode function: 0_2_020F440B rdtsc 0_2_020F440B
      Source: CaixaBank Payments Consumer Factura Leasing del 22 DE FEBRERO DE 2021 Contrato 7621780..exe, 00000000.00000002.1173395920.00000000020F0000.00000040.00000001.sdmpBinary or memory string: C:\Program Files\Qemu-ga\qemu-ga.exef9
      Source: CaixaBank Payments Consumer Factura Leasing del 22 DE FEBRERO DE 2021 Contrato 7621780..exeBinary or memory string: C:\Program Files\Qemu-ga\qemu-ga.exe
      Source: C:\Users\user\Desktop\CaixaBank Payments Consumer Factura Leasing del 22 DE FEBRERO DE 2021 Contrato 7621780..exeCode function: 0_2_020F440B rdtsc 0_2_020F440B
      Source: C:\Users\user\Desktop\CaixaBank Payments Consumer Factura Leasing del 22 DE FEBRERO DE 2021 Contrato 7621780..exeCode function: 0_2_020F2A58 mov eax, dword ptr fs:[00000030h]0_2_020F2A58
      Source: C:\Users\user\Desktop\CaixaBank Payments Consumer Factura Leasing del 22 DE FEBRERO DE 2021 Contrato 7621780..exeCode function: 0_2_020F1C89 mov eax, dword ptr fs:[00000030h]0_2_020F1C89
      Source: C:\Users\user\Desktop\CaixaBank Payments Consumer Factura Leasing del 22 DE FEBRERO DE 2021 Contrato 7621780..exeCode function: 0_2_020F1C87 mov eax, dword ptr fs:[00000030h]0_2_020F1C87
      Source: C:\Users\user\Desktop\CaixaBank Payments Consumer Factura Leasing del 22 DE FEBRERO DE 2021 Contrato 7621780..exeCode function: 0_2_020F1CEB mov eax, dword ptr fs:[00000030h]0_2_020F1CEB
      Source: C:\Users\user\Desktop\CaixaBank Payments Consumer Factura Leasing del 22 DE FEBRERO DE 2021 Contrato 7621780..exeCode function: 0_2_020F497E mov eax, dword ptr fs:[00000030h]0_2_020F497E
      Source: C:\Users\user\Desktop\CaixaBank Payments Consumer Factura Leasing del 22 DE FEBRERO DE 2021 Contrato 7621780..exeCode function: 0_2_020F4DEF mov eax, dword ptr fs:[00000030h]0_2_020F4DEF
      Source: CaixaBank Payments Consumer Factura Leasing del 22 DE FEBRERO DE 2021 Contrato 7621780..exe, 00000000.00000002.1173228044.0000000000C70000.00000002.00000001.sdmpBinary or memory string: Program Manager
      Source: CaixaBank Payments Consumer Factura Leasing del 22 DE FEBRERO DE 2021 Contrato 7621780..exe, 00000000.00000002.1173228044.0000000000C70000.00000002.00000001.sdmpBinary or memory string: Shell_TrayWnd
      Source: CaixaBank Payments Consumer Factura Leasing del 22 DE FEBRERO DE 2021 Contrato 7621780..exe, 00000000.00000002.1173228044.0000000000C70000.00000002.00000001.sdmpBinary or memory string: Progman
      Source: CaixaBank Payments Consumer Factura Leasing del 22 DE FEBRERO DE 2021 Contrato 7621780..exe, 00000000.00000002.1173228044.0000000000C70000.00000002.00000001.sdmpBinary or memory string: Progmanlock
      Source: C:\Users\user\Desktop\CaixaBank Payments Consumer Factura Leasing del 22 DE FEBRERO DE 2021 Contrato 7621780..exeCode function: 0_2_020F4E1E cpuid 0_2_020F4E1E

      Mitre Att&ck Matrix

      Initial AccessExecutionPersistencePrivilege EscalationDefense EvasionCredential AccessDiscoveryLateral MovementCollectionExfiltrationCommand and ControlNetwork EffectsRemote Service EffectsImpact
      Valid AccountsWindows Management InstrumentationPath InterceptionProcess Injection1Process Injection1OS Credential DumpingSecurity Software Discovery311Remote ServicesArchive Collected Data1Exfiltration Over Other Network MediumEncrypted Channel1Eavesdrop on Insecure Network CommunicationRemotely Track Device Without AuthorizationModify System Partition
      Default AccountsScheduled Task/JobBoot or Logon Initialization ScriptsBoot or Logon Initialization ScriptsObfuscated Files or Information1LSASS MemoryProcess Discovery1Remote Desktop ProtocolData from Removable MediaExfiltration Over BluetoothJunk DataExploit SS7 to Redirect Phone Calls/SMSRemotely Wipe Data Without AuthorizationDevice Lockout
      Domain AccountsAt (Linux)Logon Script (Windows)Logon Script (Windows)Obfuscated Files or InformationSecurity Account ManagerSystem Information Discovery211SMB/Windows Admin SharesData from Network Shared DriveAutomated ExfiltrationSteganographyExploit SS7 to Track Device LocationObtain Device Cloud BackupsDelete Device Data

      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.