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Analysis Report SGN07752818.exe

Overview

General Information

Sample Name:SGN07752818.exe
Analysis ID:271559
MD5:dc85e19bf0230041328c7ec3a5380181
SHA1:7841e7e881a27c3ce6234ae840283d5928fd809c
SHA256:d48bd7c50cc69b4f73766563fde6a1444b64a725acb7b988e75bdc54b945d383

Most interesting Screenshot:

Detection

GuLoader
Score:56
Range:0 - 100
Whitelisted:false
Confidence:100%

Signatures

Yara detected GuLoader
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 read the PEB
Creates a DirectInput object (often for capturing keystrokes)
Detected potential crypto function
PE file contains strange resources
Sample file is different than original file name gathered from version info
Uses code obfuscation techniques (call, push, ret)

Classification

Startup

  • System is w10x64
  • SGN07752818.exe (PID: 1304 cmdline: 'C:\Users\user\Desktop\SGN07752818.exe' MD5: DC85E19BF0230041328C7EC3A5380181)
  • cleanup

Malware Configuration

No configs have been found

Yara Overview

Memory Dumps

SourceRuleDescriptionAuthorStrings
Process Memory Space: SGN07752818.exe PID: 1304JoeSecurity_VB6DownloaderGenericYara detected VB6 Downloader GenericJoe Security
    Process Memory Space: SGN07752818.exe PID: 1304JoeSecurity_GuLoaderYara detected GuLoaderJoe Security

      Sigma Overview

      No Sigma rule has matched

      Signature Overview

      Click to jump to signature section

      Show All Signature Results
      Source: SGN07752818.exe, 00000001.00000002.492272998.00000000006CA000.00000004.00000020.sdmpBinary or memory string: <HOOK MODULE="DDRAW.DLL" FUNCTION="DirectDrawCreateEx"/>
      Source: C:\Users\user\Desktop\SGN07752818.exeProcess Stats: CPU usage > 98%
      Source: C:\Users\user\Desktop\SGN07752818.exeCode function: 1_2_00403BAE1_2_00403BAE
      Source: SGN07752818.exeStatic PE information: Resource name: RT_ICON type: GLS_BINARY_LSB_FIRST
      Source: SGN07752818.exe, 00000001.00000000.221772348.0000000000413000.00000002.00020000.sdmpBinary or memory string: OriginalFilenameRECLASSIFICATIONS.exe vs SGN07752818.exe
      Source: SGN07752818.exe, 00000001.00000002.492592095.0000000002250000.00000002.00000001.sdmpBinary or memory string: OriginalFilenameuser32j% vs SGN07752818.exe
      Source: SGN07752818.exeBinary or memory string: OriginalFilenameRECLASSIFICATIONS.exe vs SGN07752818.exe
      Source: classification engineClassification label: mal56.troj.evad.winEXE@1/0@0/0
      Source: C:\Users\user\Desktop\SGN07752818.exeFile created: C:\Users\user\AppData\Local\Temp\~DFB9C8CE9ECDFC1B93.TMPJump to behavior
      Source: SGN07752818.exeStatic PE information: Section: .text IMAGE_SCN_MEM_EXECUTE, IMAGE_SCN_CNT_CODE, IMAGE_SCN_MEM_READ
      Source: C:\Users\user\Desktop\SGN07752818.exeSection loaded: C:\Windows\SysWOW64\msvbvm60.dllJump to behavior
      Source: C:\Users\user\Desktop\SGN07752818.exeKey opened: HKEY_CURRENT_USER\Software\Policies\Microsoft\Windows\Safer\CodeIdentifiersJump to behavior

      Data Obfuscation:

      barindex
      Yara detected GuLoaderShow sources
      Source: Yara matchFile source: Process Memory Space: SGN07752818.exe PID: 1304, type: MEMORY
      Yara detected VB6 Downloader GenericShow sources
      Source: Yara matchFile source: Process Memory Space: SGN07752818.exe PID: 1304, type: MEMORY
      Source: C:\Users\user\Desktop\SGN07752818.exeCode function: 1_2_00405CF6 push 12B492F1h; ret 1_2_00405E3B
      Source: C:\Users\user\Desktop\SGN07752818.exeCode function: 1_2_0040BD1B push eax; iretd 1_2_0040BD31
      Source: C:\Users\user\Desktop\SGN07752818.exeCode function: 1_2_00409B7F push ebx; iretd 1_2_00409B80
      Source: C:\Users\user\Desktop\SGN07752818.exeCode function: 1_2_02327A25 push edi; retf 1_2_02327A26
      Source: C:\Users\user\Desktop\SGN07752818.exeCode function: 1_2_02325E03 push ecx; ret 1_2_02325E06
      Source: C:\Users\user\Desktop\SGN07752818.exeCode function: 1_2_02325F03 push ecx; ret 1_2_02325F06
      Source: C:\Users\user\Desktop\SGN07752818.exeProcess information set: NOOPENFILEERRORBOXJump to behavior

      Malware Analysis System Evasion:

      barindex
      Tries to detect virtualization through RDTSC time measurementsShow sources
      Source: C:\Users\user\Desktop\SGN07752818.exeRDTSC instruction interceptor: First address: 0000000002323BCC second address: 0000000002323BCC instructions: 0x00000000 rdtsc 0x00000002 mov eax, 00000001h 0x00000007 cpuid 0x00000009 popad 0x0000000a call 00007F2F80774CE8h 0x0000000f lfence 0x00000012 mov edx, dword ptr [7FFE0014h] 0x00000018 lfence 0x0000001b ret 0x0000001c sub edx, esi 0x0000001e ret 0x0000001f jmp 00007F2F80774DDDh 0x00000024 cmp dh, ch 0x00000026 pop ecx 0x00000027 add edi, edx 0x00000029 dec ecx 0x0000002a cmp ecx, 00000000h 0x0000002d jne 00007F2F80774BD1h 0x00000033 test ax, ax 0x00000036 push ecx 0x00000037 call 00007F2F80774DFEh 0x0000003c call 00007F2F80774CFAh 0x00000041 lfence 0x00000044 mov edx, dword ptr [7FFE0014h] 0x0000004a lfence 0x0000004d ret 0x0000004e mov esi, edx 0x00000050 pushad 0x00000051 rdtsc
      Source: C:\Users\user\Desktop\SGN07752818.exeCode function: 1_2_02322693 rdtsc 1_2_02322693
      Source: SGN07752818.exeBinary or memory string: C:\Program Files\Qemu-ga\qemu-ga.exe
      Source: C:\Users\user\Desktop\SGN07752818.exeCode function: 1_2_02322693 rdtsc 1_2_02322693
      Source: C:\Users\user\Desktop\SGN07752818.exeCode function: 1_2_02327000 mov eax, dword ptr fs:[00000030h]1_2_02327000
      Source: C:\Users\user\Desktop\SGN07752818.exeCode function: 1_2_02327465 mov eax, dword ptr fs:[00000030h]1_2_02327465
      Source: C:\Users\user\Desktop\SGN07752818.exeCode function: 1_2_02322693 mov eax, dword ptr fs:[00000030h]1_2_02322693
      Source: C:\Users\user\Desktop\SGN07752818.exeCode function: 1_2_023238CE mov eax, dword ptr fs:[00000030h]1_2_023238CE
      Source: C:\Users\user\Desktop\SGN07752818.exeCode function: 1_2_02327F3C mov eax, dword ptr fs:[00000030h]1_2_02327F3C
      Source: C:\Users\user\Desktop\SGN07752818.exeCode function: 1_2_0232237B mov eax, dword ptr fs:[00000030h]1_2_0232237B
      Source: C:\Users\user\Desktop\SGN07752818.exeCode function: 1_2_02321B81 mov eax, dword ptr fs:[00000030h]1_2_02321B81
      Source: SGN07752818.exe, 00000001.00000002.492392914.0000000000D90000.00000002.00000001.sdmpBinary or memory string: Shell_TrayWnd
      Source: SGN07752818.exe, 00000001.00000002.492392914.0000000000D90000.00000002.00000001.sdmpBinary or memory string: Progman
      Source: SGN07752818.exe, 00000001.00000002.492392914.0000000000D90000.00000002.00000001.sdmpBinary or memory string: Progmanlock
      Source: SGN07752818.exe, 00000001.00000002.492392914.0000000000D90000.00000002.00000001.sdmpBinary or memory string: Program Manager[

      Mitre Att&ck Matrix

      Initial AccessExecutionPersistencePrivilege EscalationDefense EvasionCredential AccessDiscoveryLateral MovementCollectionExfiltrationCommand and ControlNetwork EffectsRemote Service EffectsImpact
      Valid AccountsWindows Management InstrumentationPath InterceptionProcess Injection1Process Injection1Input Capture1Security Software Discovery111Remote ServicesInput Capture1Exfiltration 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 ProtocolArchive Collected Data1Exfiltration 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 Discovery11SMB/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.