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Analysis Report RFQ#89234A_2021_LISTED_ITEMS_DUC_PHUCS_IMPORT_EXPORT_CO.exe

Overview

General Information

Sample Name:RFQ#89234A_2021_LISTED_ITEMS_DUC_PHUCS_IMPORT_EXPORT_CO.exe
Analysis ID:339372
MD5:754d599f8cdeb37d1f3f61764669d799
SHA1:5e48dfb313f300b4d460e73bd25b324b88da0df7
SHA256:7c328b51dbd9e7fb96ca2ed21358fd5112c809f9666f9287b55927302c7ac1ea
Tags:exeGuLoader

Most interesting Screenshot:

Detection

GuLoader
Score:76
Range:0 - 100
Whitelisted:false
Confidence:100%

Signatures

Multi AV Scanner detection for submitted file
Yara detected GuLoader
Contains functionality to detect hardware virtualization (CPUID execution measurement)
Found potential dummy code loops (likely to delay analysis)
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
PE file contains strange resources
Program does not show much activity (idle)
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: RFQ#89234A_2021_LISTED_ITEMS_DUC_PHUCS_IMPORT_EXPORT_CO.exe PID: 6180JoeSecurity_VB6DownloaderGenericYara detected VB6 Downloader GenericJoe Security
    Process Memory Space: RFQ#89234A_2021_LISTED_ITEMS_DUC_PHUCS_IMPORT_EXPORT_CO.exe PID: 6180JoeSecurity_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: RFQ#89234A_2021_LISTED_ITEMS_DUC_PHUCS_IMPORT_EXPORT_CO.exeReversingLabs: Detection: 20%
      Source: RFQ#89234A_2021_LISTED_ITEMS_DUC_PHUCS_IMPORT_EXPORT_CO.exeStatic PE information: LOCAL_SYMS_STRIPPED, 32BIT_MACHINE, EXECUTABLE_IMAGE, LINE_NUMS_STRIPPED, RELOCS_STRIPPED
      Source: C:\Users\user\Desktop\RFQ#89234A_2021_LISTED_ITEMS_DUC_PHUCS_IMPORT_EXPORT_CO.exeProcess Stats: CPU usage > 98%
      Source: RFQ#89234A_2021_LISTED_ITEMS_DUC_PHUCS_IMPORT_EXPORT_CO.exeStatic PE information: Resource name: RT_ICON type: GLS_BINARY_LSB_FIRST
      Source: RFQ#89234A_2021_LISTED_ITEMS_DUC_PHUCS_IMPORT_EXPORT_CO.exe, 00000000.00000002.1437688379.00000000021D0000.00000002.00000001.sdmpBinary or memory string: OriginalFilenameuser32j% vs RFQ#89234A_2021_LISTED_ITEMS_DUC_PHUCS_IMPORT_EXPORT_CO.exe
      Source: RFQ#89234A_2021_LISTED_ITEMS_DUC_PHUCS_IMPORT_EXPORT_CO.exe, 00000000.00000000.340886631.0000000000414000.00000002.00020000.sdmpBinary or memory string: OriginalFilenameGISELLE.exe vs RFQ#89234A_2021_LISTED_ITEMS_DUC_PHUCS_IMPORT_EXPORT_CO.exe
      Source: RFQ#89234A_2021_LISTED_ITEMS_DUC_PHUCS_IMPORT_EXPORT_CO.exeBinary or memory string: OriginalFilenameGISELLE.exe vs RFQ#89234A_2021_LISTED_ITEMS_DUC_PHUCS_IMPORT_EXPORT_CO.exe
      Source: RFQ#89234A_2021_LISTED_ITEMS_DUC_PHUCS_IMPORT_EXPORT_CO.exeStatic PE information: LOCAL_SYMS_STRIPPED, 32BIT_MACHINE, EXECUTABLE_IMAGE, LINE_NUMS_STRIPPED, RELOCS_STRIPPED
      Source: classification engineClassification label: mal76.troj.evad.winEXE@1/0@0/0
      Source: C:\Users\user\Desktop\RFQ#89234A_2021_LISTED_ITEMS_DUC_PHUCS_IMPORT_EXPORT_CO.exeFile created: C:\Users\user\AppData\Local\Temp\~DFA8C396C0239A952E.TMPJump to behavior
      Source: RFQ#89234A_2021_LISTED_ITEMS_DUC_PHUCS_IMPORT_EXPORT_CO.exeStatic PE information: Section: .text IMAGE_SCN_MEM_EXECUTE, IMAGE_SCN_CNT_CODE, IMAGE_SCN_MEM_READ
      Source: C:\Users\user\Desktop\RFQ#89234A_2021_LISTED_ITEMS_DUC_PHUCS_IMPORT_EXPORT_CO.exeSection loaded: C:\Windows\SysWOW64\msvbvm60.dllJump to behavior
      Source: C:\Users\user\Desktop\RFQ#89234A_2021_LISTED_ITEMS_DUC_PHUCS_IMPORT_EXPORT_CO.exeKey opened: HKEY_CURRENT_USER\Software\Policies\Microsoft\Windows\Safer\CodeIdentifiersJump to behavior
      Source: RFQ#89234A_2021_LISTED_ITEMS_DUC_PHUCS_IMPORT_EXPORT_CO.exeReversingLabs: Detection: 20%

      Data Obfuscation:

      barindex
      Yara detected GuLoaderShow sources
      Source: Yara matchFile source: Process Memory Space: RFQ#89234A_2021_LISTED_ITEMS_DUC_PHUCS_IMPORT_EXPORT_CO.exe PID: 6180, type: MEMORY
      Yara detected VB6 Downloader GenericShow sources
      Source: Yara matchFile source: Process Memory Space: RFQ#89234A_2021_LISTED_ITEMS_DUC_PHUCS_IMPORT_EXPORT_CO.exe PID: 6180, type: MEMORY
      Source: C:\Users\user\Desktop\RFQ#89234A_2021_LISTED_ITEMS_DUC_PHUCS_IMPORT_EXPORT_CO.exeCode function: 0_2_004075B4 push edi; iretd 0_2_004075B6
      Source: C:\Users\user\Desktop\RFQ#89234A_2021_LISTED_ITEMS_DUC_PHUCS_IMPORT_EXPORT_CO.exeCode function: 0_2_00405F85 push edx; iretd 0_2_00405F86
      Source: C:\Users\user\Desktop\RFQ#89234A_2021_LISTED_ITEMS_DUC_PHUCS_IMPORT_EXPORT_CO.exeProcess information set: NOOPENFILEERRORBOXJump to behavior

      Malware Analysis System Evasion:

      barindex
      Contains functionality to detect hardware virtualization (CPUID execution measurement)Show sources
      Source: C:\Users\user\Desktop\RFQ#89234A_2021_LISTED_ITEMS_DUC_PHUCS_IMPORT_EXPORT_CO.exeCode function: 0_2_0220323B 0_2_0220323B
      Source: C:\Users\user\Desktop\RFQ#89234A_2021_LISTED_ITEMS_DUC_PHUCS_IMPORT_EXPORT_CO.exeCode function: 0_2_02202E11 0_2_02202E11
      Source: C:\Users\user\Desktop\RFQ#89234A_2021_LISTED_ITEMS_DUC_PHUCS_IMPORT_EXPORT_CO.exeCode function: 0_2_02202E71 0_2_02202E71
      Source: C:\Users\user\Desktop\RFQ#89234A_2021_LISTED_ITEMS_DUC_PHUCS_IMPORT_EXPORT_CO.exeCode function: 0_2_022026E2 0_2_022026E2
      Source: C:\Users\user\Desktop\RFQ#89234A_2021_LISTED_ITEMS_DUC_PHUCS_IMPORT_EXPORT_CO.exeCode function: 0_2_02202EF4 0_2_02202EF4
      Source: C:\Users\user\Desktop\RFQ#89234A_2021_LISTED_ITEMS_DUC_PHUCS_IMPORT_EXPORT_CO.exeCode function: 0_2_02202EC5 0_2_02202EC5
      Source: C:\Users\user\Desktop\RFQ#89234A_2021_LISTED_ITEMS_DUC_PHUCS_IMPORT_EXPORT_CO.exeCode function: 0_2_02202F69 0_2_02202F69
      Source: C:\Users\user\Desktop\RFQ#89234A_2021_LISTED_ITEMS_DUC_PHUCS_IMPORT_EXPORT_CO.exeCode function: 0_2_02202FD4 0_2_02202FD4
      Source: C:\Users\user\Desktop\RFQ#89234A_2021_LISTED_ITEMS_DUC_PHUCS_IMPORT_EXPORT_CO.exeCode function: 0_2_02203057 0_2_02203057
      Source: C:\Users\user\Desktop\RFQ#89234A_2021_LISTED_ITEMS_DUC_PHUCS_IMPORT_EXPORT_CO.exeCode function: 0_2_022038B2 0_2_022038B2
      Source: C:\Users\user\Desktop\RFQ#89234A_2021_LISTED_ITEMS_DUC_PHUCS_IMPORT_EXPORT_CO.exeCode function: 0_2_022030DB 0_2_022030DB
      Source: C:\Users\user\Desktop\RFQ#89234A_2021_LISTED_ITEMS_DUC_PHUCS_IMPORT_EXPORT_CO.exeCode function: 0_2_0220292A 0_2_0220292A
      Source: C:\Users\user\Desktop\RFQ#89234A_2021_LISTED_ITEMS_DUC_PHUCS_IMPORT_EXPORT_CO.exeCode function: 0_2_02203135 0_2_02203135
      Source: C:\Users\user\Desktop\RFQ#89234A_2021_LISTED_ITEMS_DUC_PHUCS_IMPORT_EXPORT_CO.exeCode function: 0_2_02202D19 0_2_02202D19
      Source: C:\Users\user\Desktop\RFQ#89234A_2021_LISTED_ITEMS_DUC_PHUCS_IMPORT_EXPORT_CO.exeCode function: 0_2_022031AB 0_2_022031AB
      Source: C:\Users\user\Desktop\RFQ#89234A_2021_LISTED_ITEMS_DUC_PHUCS_IMPORT_EXPORT_CO.exeCode function: 0_2_02202DAD 0_2_02202DAD
      Source: C:\Users\user\Desktop\RFQ#89234A_2021_LISTED_ITEMS_DUC_PHUCS_IMPORT_EXPORT_CO.exeCode function: 0_2_022071E6 0_2_022071E6
      Source: C:\Users\user\Desktop\RFQ#89234A_2021_LISTED_ITEMS_DUC_PHUCS_IMPORT_EXPORT_CO.exeCode function: 0_2_02207DE9 0_2_02207DE9
      Source: C:\Users\user\Desktop\RFQ#89234A_2021_LISTED_ITEMS_DUC_PHUCS_IMPORT_EXPORT_CO.exeCode function: 0_2_022065C3 0_2_022065C3
      Source: C:\Users\user\Desktop\RFQ#89234A_2021_LISTED_ITEMS_DUC_PHUCS_IMPORT_EXPORT_CO.exeCode function: 0_2_02201DDB 0_2_02201DDB
      Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)Show sources
      Source: RFQ#89234A_2021_LISTED_ITEMS_DUC_PHUCS_IMPORT_EXPORT_CO.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\RFQ#89234A_2021_LISTED_ITEMS_DUC_PHUCS_IMPORT_EXPORT_CO.exeRDTSC instruction interceptor: First address: 0000000002206A28 second address: 0000000002206A28 instructions: 0x00000000 rdtsc 0x00000002 xor eax, eax 0x00000004 inc eax 0x00000005 cpuid 0x00000007 popad 0x00000008 call 00007F9D08895FF8h 0x0000000d lfence 0x00000010 mov edx, dword ptr [7FFE0014h] 0x00000016 lfence 0x00000019 ret 0x0000001a sub edx, esi 0x0000001c ret 0x0000001d test edx, F234E3D4h 0x00000023 add edi, edx 0x00000025 dec dword ptr [ebp+000000F8h] 0x0000002b cmp dword ptr [ebp+000000F8h], 00000000h 0x00000032 jne 00007F9D08895F76h 0x00000034 jmp 00007F9D08895FEEh 0x00000036 test dh, dh 0x00000038 call 00007F9D08896019h 0x0000003d call 00007F9D08896008h 0x00000042 lfence 0x00000045 mov edx, dword ptr [7FFE0014h] 0x0000004b lfence 0x0000004e ret 0x0000004f mov esi, edx 0x00000051 pushad 0x00000052 rdtsc
      Source: C:\Users\user\Desktop\RFQ#89234A_2021_LISTED_ITEMS_DUC_PHUCS_IMPORT_EXPORT_CO.exeCode function: 0_2_02206A20 rdtsc 0_2_02206A20
      Source: all processesThread injection, dropped files, key value created, disk infection and DNS query: no activity detected
      Source: RFQ#89234A_2021_LISTED_ITEMS_DUC_PHUCS_IMPORT_EXPORT_CO.exeBinary or memory string: C:\Program Files\Qemu-ga\qemu-ga.exe

      Anti Debugging:

      barindex
      Found potential dummy code loops (likely to delay analysis)Show sources
      Source: C:\Users\user\Desktop\RFQ#89234A_2021_LISTED_ITEMS_DUC_PHUCS_IMPORT_EXPORT_CO.exeProcess Stats: CPU usage > 90% for more than 60s
      Source: C:\Users\user\Desktop\RFQ#89234A_2021_LISTED_ITEMS_DUC_PHUCS_IMPORT_EXPORT_CO.exeCode function: 0_2_02206A20 rdtsc 0_2_02206A20
      Source: C:\Users\user\Desktop\RFQ#89234A_2021_LISTED_ITEMS_DUC_PHUCS_IMPORT_EXPORT_CO.exeCode function: 0_2_02203669 mov eax, dword ptr fs:[00000030h]0_2_02203669
      Source: C:\Users\user\Desktop\RFQ#89234A_2021_LISTED_ITEMS_DUC_PHUCS_IMPORT_EXPORT_CO.exeCode function: 0_2_02207258 mov eax, dword ptr fs:[00000030h]0_2_02207258
      Source: C:\Users\user\Desktop\RFQ#89234A_2021_LISTED_ITEMS_DUC_PHUCS_IMPORT_EXPORT_CO.exeCode function: 0_2_022026E2 mov eax, dword ptr fs:[00000030h]0_2_022026E2
      Source: C:\Users\user\Desktop\RFQ#89234A_2021_LISTED_ITEMS_DUC_PHUCS_IMPORT_EXPORT_CO.exeCode function: 0_2_022026F4 mov eax, dword ptr fs:[00000030h]0_2_022026F4
      Source: C:\Users\user\Desktop\RFQ#89234A_2021_LISTED_ITEMS_DUC_PHUCS_IMPORT_EXPORT_CO.exeCode function: 0_2_02205C60 mov eax, dword ptr fs:[00000030h]0_2_02205C60
      Source: C:\Users\user\Desktop\RFQ#89234A_2021_LISTED_ITEMS_DUC_PHUCS_IMPORT_EXPORT_CO.exeCode function: 0_2_0220244B mov eax, dword ptr fs:[00000030h]0_2_0220244B
      Source: C:\Users\user\Desktop\RFQ#89234A_2021_LISTED_ITEMS_DUC_PHUCS_IMPORT_EXPORT_CO.exeCode function: 0_2_02202457 mov eax, dword ptr fs:[00000030h]0_2_02202457
      Source: C:\Users\user\Desktop\RFQ#89234A_2021_LISTED_ITEMS_DUC_PHUCS_IMPORT_EXPORT_CO.exeCode function: 0_2_022071E6 mov eax, dword ptr fs:[00000030h]0_2_022071E6
      Source: C:\Users\user\Desktop\RFQ#89234A_2021_LISTED_ITEMS_DUC_PHUCS_IMPORT_EXPORT_CO.exeCode function: 0_2_022071E8 mov eax, dword ptr fs:[00000030h]0_2_022071E8
      Source: C:\Users\user\Desktop\RFQ#89234A_2021_LISTED_ITEMS_DUC_PHUCS_IMPORT_EXPORT_CO.exeCode function: 0_2_022065C3 mov eax, dword ptr fs:[00000030h]0_2_022065C3
      Source: C:\Users\user\Desktop\RFQ#89234A_2021_LISTED_ITEMS_DUC_PHUCS_IMPORT_EXPORT_CO.exeCode function: 0_2_02201DDB mov eax, dword ptr fs:[00000030h]0_2_02201DDB
      Source: all processesThread injection, dropped files, key value created, disk infection and DNS query: no activity detected
      Source: RFQ#89234A_2021_LISTED_ITEMS_DUC_PHUCS_IMPORT_EXPORT_CO.exe, 00000000.00000002.1437488688.0000000000DB0000.00000002.00000001.sdmpBinary or memory string: Shell_TrayWnd
      Source: RFQ#89234A_2021_LISTED_ITEMS_DUC_PHUCS_IMPORT_EXPORT_CO.exe, 00000000.00000002.1437488688.0000000000DB0000.00000002.00000001.sdmpBinary or memory string: Progman
      Source: RFQ#89234A_2021_LISTED_ITEMS_DUC_PHUCS_IMPORT_EXPORT_CO.exe, 00000000.00000002.1437488688.0000000000DB0000.00000002.00000001.sdmpBinary or memory string: &Program Manager
      Source: RFQ#89234A_2021_LISTED_ITEMS_DUC_PHUCS_IMPORT_EXPORT_CO.exe, 00000000.00000002.1437488688.0000000000DB0000.00000002.00000001.sdmpBinary or memory string: Progmanlock
      Source: C:\Users\user\Desktop\RFQ#89234A_2021_LISTED_ITEMS_DUC_PHUCS_IMPORT_EXPORT_CO.exeCode function: 0_2_02206376 cpuid 0_2_02206376

      Mitre Att&ck Matrix

      Initial AccessExecutionPersistencePrivilege EscalationDefense EvasionCredential AccessDiscoveryLateral MovementCollectionExfiltrationCommand and ControlNetwork EffectsRemote Service EffectsImpact
      Valid AccountsWindows Management InstrumentationPath InterceptionProcess Injection1Virtualization/Sandbox Evasion11OS Credential DumpingSecurity Software Discovery411Remote ServicesData from Local SystemExfiltration Over Other Network MediumData ObfuscationEavesdrop on Insecure Network CommunicationRemotely Track Device Without AuthorizationModify System Partition
      Default AccountsScheduled Task/JobBoot or Logon Initialization ScriptsBoot or Logon Initialization ScriptsProcess Injection1LSASS MemoryVirtualization/Sandbox Evasion11Remote 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 Information1Security Account ManagerProcess 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)Binary PaddingNTDSSystem Information Discovery211Distributed Component Object ModelInput CaptureScheduled TransferProtocol ImpersonationSIM Card SwapCarrier Billing Fraud

      Behavior Graph

      Screenshots

      Thumbnails

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