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Windows Analysis Report pago12_14299038859.exe

Overview

General Information

Sample Name:pago12_14299038859.exe
Analysis ID:539535
MD5:9a1518ed709f916360e56b5ac7d76995
SHA1:7c85312d66edf5b02ebd6c25cfe9c036a3471263
SHA256:2a0878c196278384aab473c92977d236680c788b4e5ae0cc1f415a075a6fa9e2
Tags:exe
Infos:

Most interesting Screenshot:

Detection

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

Signatures

Found malware configuration
Multi AV Scanner detection for submitted file
Yara detected GuLoader
Tries to detect virtualization through RDTSC time measurements
C2 URLs / IPs found in malware configuration
Machine Learning detection for sample
Uses 32bit PE files
Sample file is different than original file name gathered from version info
PE file contains strange resources
Contains functionality to read the PEB
Uses code obfuscation techniques (call, push, ret)
Detected potential crypto function
Contains functionality to call native functions
Contains functionality for execution timing, often used to detect debuggers
Abnormal high CPU Usage

Classification

Process Tree

  • System is w10x64
  • pago12_14299038859.exe (PID: 4680 cmdline: "C:\Users\user\Desktop\pago12_14299038859.exe" MD5: 9A1518ED709F916360E56B5AC7D76995)
  • cleanup

Malware Configuration

Threatname: GuLoader

{"Payload URL": "https://drive.google.com/uc?export=download&id=1rvzmbX5uh5o/"}

Yara Overview

Memory Dumps

SourceRuleDescriptionAuthorStrings
00000000.00000002.1196997646.0000000004D20000.00000040.00000001.sdmpJoeSecurity_GuLoader_2Yara detected GuLoaderJoe Security

    Sigma Overview

    No Sigma rule has matched

    Jbx Signature Overview

    Click to jump to signature section

    Show All Signature Results

    AV Detection:

    barindex
    Found malware configurationShow sources
    Source: 00000000.00000002.1196997646.0000000004D20000.00000040.00000001.sdmpMalware Configuration Extractor: GuLoader {"Payload URL": "https://drive.google.com/uc?export=download&id=1rvzmbX5uh5o/"}
    Multi AV Scanner detection for submitted fileShow sources
    Source: pago12_14299038859.exeReversingLabs: Detection: 15%
    Machine Learning detection for sampleShow sources
    Source: pago12_14299038859.exeJoe Sandbox ML: detected
    Source: pago12_14299038859.exeStatic PE information: LOCAL_SYMS_STRIPPED, 32BIT_MACHINE, EXECUTABLE_IMAGE, LINE_NUMS_STRIPPED, RELOCS_STRIPPED

    Networking:

    barindex
    C2 URLs / IPs found in malware configurationShow sources
    Source: Malware configuration extractorURLs: https://drive.google.com/uc?export=download&id=1rvzmbX5uh5o/
    Source: pago12_14299038859.exeStatic PE information: LOCAL_SYMS_STRIPPED, 32BIT_MACHINE, EXECUTABLE_IMAGE, LINE_NUMS_STRIPPED, RELOCS_STRIPPED
    Source: pago12_14299038859.exe, 00000000.00000002.1196818293.0000000002930000.00000004.00000001.sdmpBinary or memory string: OriginalFilenameFort.exeFE2X vs pago12_14299038859.exe
    Source: pago12_14299038859.exe, 00000000.00000000.669780195.000000000042B000.00000002.00020000.sdmpBinary or memory string: OriginalFilenameFort.exe vs pago12_14299038859.exe
    Source: pago12_14299038859.exeBinary or memory string: OriginalFilenameFort.exe vs pago12_14299038859.exe
    Source: pago12_14299038859.exeStatic PE information: Resource name: RT_ICON type: GLS_BINARY_LSB_FIRST
    Source: C:\Users\user\Desktop\pago12_14299038859.exeCode function: 0_2_04D2841D0_2_04D2841D
    Source: C:\Users\user\Desktop\pago12_14299038859.exeCode function: 0_2_04D2D38F0_2_04D2D38F
    Source: C:\Users\user\Desktop\pago12_14299038859.exeCode function: 0_2_04D204CA0_2_04D204CA
    Source: C:\Users\user\Desktop\pago12_14299038859.exeCode function: 0_2_04D284980_2_04D28498
    Source: C:\Users\user\Desktop\pago12_14299038859.exeCode function: 0_2_04D2749D0_2_04D2749D
    Source: C:\Users\user\Desktop\pago12_14299038859.exeCode function: 0_2_04D2C4BD0_2_04D2C4BD
    Source: C:\Users\user\Desktop\pago12_14299038859.exeCode function: 0_2_04D2C45D0_2_04D2C45D
    Source: C:\Users\user\Desktop\pago12_14299038859.exeCode function: 0_2_04D284410_2_04D28441
    Source: C:\Users\user\Desktop\pago12_14299038859.exeCode function: 0_2_04D205C30_2_04D205C3
    Source: C:\Users\user\Desktop\pago12_14299038859.exeCode function: 0_2_04D265C90_2_04D265C9
    Source: C:\Users\user\Desktop\pago12_14299038859.exeCode function: 0_2_04D265890_2_04D26589
    Source: C:\Users\user\Desktop\pago12_14299038859.exeCode function: 0_2_04D205490_2_04D20549
    Source: C:\Users\user\Desktop\pago12_14299038859.exeCode function: 0_2_04D2057D0_2_04D2057D
    Source: C:\Users\user\Desktop\pago12_14299038859.exeCode function: 0_2_04D205170_2_04D20517
    Source: C:\Users\user\Desktop\pago12_14299038859.exeCode function: 0_2_04D2C5090_2_04D2C509
    Source: C:\Users\user\Desktop\pago12_14299038859.exeCode function: 0_2_04D236F80_2_04D236F8
    Source: C:\Users\user\Desktop\pago12_14299038859.exeCode function: 0_2_04D2C66C0_2_04D2C66C
    Source: C:\Users\user\Desktop\pago12_14299038859.exeCode function: 0_2_04D2663D0_2_04D2663D
    Source: C:\Users\user\Desktop\pago12_14299038859.exeCode function: 0_2_04D267590_2_04D26759
    Source: C:\Users\user\Desktop\pago12_14299038859.exeCode function: 0_2_04D2C70E0_2_04D2C70E
    Source: C:\Users\user\Desktop\pago12_14299038859.exeCode function: 0_2_04D260CA0_2_04D260CA
    Source: C:\Users\user\Desktop\pago12_14299038859.exeCode function: 0_2_04D260F60_2_04D260F6
    Source: C:\Users\user\Desktop\pago12_14299038859.exeCode function: 0_2_04D290850_2_04D29085
    Source: C:\Users\user\Desktop\pago12_14299038859.exeCode function: 0_2_04D2C0520_2_04D2C052
    Source: C:\Users\user\Desktop\pago12_14299038859.exeCode function: 0_2_04D2706B0_2_04D2706B
    Source: C:\Users\user\Desktop\pago12_14299038859.exeCode function: 0_2_04D260050_2_04D26005
    Source: C:\Users\user\Desktop\pago12_14299038859.exeCode function: 0_2_04D281800_2_04D28180
    Source: C:\Users\user\Desktop\pago12_14299038859.exeCode function: 0_2_04D2C2E90_2_04D2C2E9
    Source: C:\Users\user\Desktop\pago12_14299038859.exeCode function: 0_2_04D282550_2_04D28255
    Source: C:\Users\user\Desktop\pago12_14299038859.exeCode function: 0_2_04D2C2590_2_04D2C259
    Source: C:\Users\user\Desktop\pago12_14299038859.exeCode function: 0_2_04D262140_2_04D26214
    Source: C:\Users\user\Desktop\pago12_14299038859.exeCode function: 0_2_04D2C2260_2_04D2C226
    Source: C:\Users\user\Desktop\pago12_14299038859.exeCode function: 0_2_04D2C3D10_2_04D2C3D1
    Source: C:\Users\user\Desktop\pago12_14299038859.exeCode function: 0_2_04D263ED0_2_04D263ED
    Source: C:\Users\user\Desktop\pago12_14299038859.exeCode function: 0_2_04D2838C0_2_04D2838C
    Source: C:\Users\user\Desktop\pago12_14299038859.exeCode function: 0_2_04D2C37D0_2_04D2C37D
    Source: C:\Users\user\Desktop\pago12_14299038859.exeCode function: 0_2_04D2632E0_2_04D2632E
    Source: C:\Users\user\Desktop\pago12_14299038859.exeCode function: 0_2_04D26C930_2_04D26C93
    Source: C:\Users\user\Desktop\pago12_14299038859.exeCode function: 0_2_04D27C390_2_04D27C39
    Source: C:\Users\user\Desktop\pago12_14299038859.exeCode function: 0_2_04D26DC90_2_04D26DC9
    Source: C:\Users\user\Desktop\pago12_14299038859.exeCode function: 0_2_04D26EE90_2_04D26EE9
    Source: C:\Users\user\Desktop\pago12_14299038859.exeCode function: 0_2_04D25F920_2_04D25F92
    Source: C:\Users\user\Desktop\pago12_14299038859.exeCode function: 0_2_04D26F8D0_2_04D26F8D
    Source: C:\Users\user\Desktop\pago12_14299038859.exeCode function: 0_2_04D268D10_2_04D268D1
    Source: C:\Users\user\Desktop\pago12_14299038859.exeCode function: 0_2_04D269B10_2_04D269B1
    Source: C:\Users\user\Desktop\pago12_14299038859.exeCode function: 0_2_04D259A70_2_04D259A7
    Source: C:\Users\user\Desktop\pago12_14299038859.exeCode function: 0_2_04D289A80_2_04D289A8
    Source: C:\Users\user\Desktop\pago12_14299038859.exeCode function: 0_2_04D269510_2_04D26951
    Source: C:\Users\user\Desktop\pago12_14299038859.exeCode function: 0_2_04D2595B0_2_04D2595B
    Source: C:\Users\user\Desktop\pago12_14299038859.exeCode function: 0_2_04D28A900_2_04D28A90
    Source: C:\Users\user\Desktop\pago12_14299038859.exeCode function: 0_2_04D26A750_2_04D26A75
    Source: C:\Users\user\Desktop\pago12_14299038859.exeCode function: 0_2_04D28A150_2_04D28A15
    Source: C:\Users\user\Desktop\pago12_14299038859.exeCode function: 0_2_04D28BD10_2_04D28BD1
    Source: C:\Users\user\Desktop\pago12_14299038859.exeCode function: 0_2_04D25BF00_2_04D25BF0
    Source: C:\Users\user\Desktop\pago12_14299038859.exeCode function: 0_2_04D25BB10_2_04D25BB1
    Source: C:\Users\user\Desktop\pago12_14299038859.exeCode function: 0_2_04D28B590_2_04D28B59
    Source: C:\Users\user\Desktop\pago12_14299038859.exeCode function: 0_2_04D26B4E0_2_04D26B4E
    Source: C:\Users\user\Desktop\pago12_14299038859.exeCode function: 0_2_04D2841D NtAllocateVirtualMemory,0_2_04D2841D
    Source: C:\Users\user\Desktop\pago12_14299038859.exeCode function: 0_2_04D284D9 NtAllocateVirtualMemory,0_2_04D284D9
    Source: C:\Users\user\Desktop\pago12_14299038859.exeCode function: 0_2_04D28498 NtAllocateVirtualMemory,0_2_04D28498
    Source: C:\Users\user\Desktop\pago12_14299038859.exeCode function: 0_2_04D28441 NtAllocateVirtualMemory,0_2_04D28441
    Source: C:\Users\user\Desktop\pago12_14299038859.exeCode function: 0_2_04D28551 NtAllocateVirtualMemory,0_2_04D28551
    Source: C:\Users\user\Desktop\pago12_14299038859.exeCode function: 0_2_04D28663 NtAllocateVirtualMemory,0_2_04D28663
    Source: C:\Users\user\Desktop\pago12_14299038859.exeCode function: 0_2_04D28621 NtAllocateVirtualMemory,0_2_04D28621
    Source: C:\Users\user\Desktop\pago12_14299038859.exeCode function: 0_2_04D28255 NtAllocateVirtualMemory,0_2_04D28255
    Source: C:\Users\user\Desktop\pago12_14299038859.exeCode function: 0_2_04D2838C NtAllocateVirtualMemory,0_2_04D2838C
    Source: C:\Users\user\Desktop\pago12_14299038859.exeProcess Stats: CPU usage > 98%
    Source: pago12_14299038859.exeReversingLabs: Detection: 15%
    Source: pago12_14299038859.exeStatic PE information: Section: .text IMAGE_SCN_MEM_EXECUTE, IMAGE_SCN_CNT_CODE, IMAGE_SCN_MEM_READ
    Source: C:\Users\user\Desktop\pago12_14299038859.exeKey opened: HKEY_CURRENT_USER\Software\Policies\Microsoft\Windows\Safer\CodeIdentifiersJump to behavior
    Source: C:\Users\user\Desktop\pago12_14299038859.exeSection loaded: C:\Windows\SysWOW64\msvbvm60.dllJump to behavior
    Source: C:\Users\user\Desktop\pago12_14299038859.exeKey value queried: HKEY_LOCAL_MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{0D43FE01-F093-11CF-8940-00A0C9054228}\InprocServer32Jump to behavior
    Source: C:\Users\user\Desktop\pago12_14299038859.exeFile created: C:\Users\user\AppData\Local\Temp\~DF56158A8C389C0AF7.TMPJump to behavior
    Source: classification engineClassification label: mal76.troj.evad.winEXE@1/1@0/0

    Data Obfuscation:

    barindex
    Yara detected GuLoaderShow sources
    Source: Yara matchFile source: 00000000.00000002.1196997646.0000000004D20000.00000040.00000001.sdmp, type: MEMORY
    Source: C:\Users\user\Desktop\pago12_14299038859.exeCode function: 0_2_00406471 push edi; iretd 0_2_00406472
    Source: C:\Users\user\Desktop\pago12_14299038859.exeCode function: 0_2_00409011 push esp; retf 0_2_00409013
    Source: C:\Users\user\Desktop\pago12_14299038859.exeCode function: 0_2_0040682F push esi; retf 0_2_00406830
    Source: C:\Users\user\Desktop\pago12_14299038859.exeCode function: 0_2_0040A490 push ds; iretd 0_2_0040A491
    Source: C:\Users\user\Desktop\pago12_14299038859.exeCode function: 0_2_004079F6 push eax; retf 0_2_00407A10
    Source: C:\Users\user\Desktop\pago12_14299038859.exeCode function: 0_2_004055BF push ds; ret 0_2_004055D9
    Source: C:\Users\user\Desktop\pago12_14299038859.exeCode function: 0_2_00405ECC push ebp; ret 0_2_00405ED8
    Source: C:\Users\user\Desktop\pago12_14299038859.exeCode function: 0_2_00407F27 push edi; ret 0_2_00407F28
    Source: C:\Users\user\Desktop\pago12_14299038859.exeCode function: 0_2_00407FBA push eax; iretd 0_2_00407FBB
    Source: C:\Users\user\Desktop\pago12_14299038859.exeCode function: 0_2_04D2747D pushfd ; iretd 0_2_04D29C58
    Source: C:\Users\user\Desktop\pago12_14299038859.exeCode function: 0_2_04D27404 pushfd ; iretd 0_2_04D29C58
    Source: C:\Users\user\Desktop\pago12_14299038859.exeCode function: 0_2_04D200CA push 5D54C3DCh; ret 0_2_04D20116
    Source: C:\Users\user\Desktop\pago12_14299038859.exeCode function: 0_2_04D29157 push E8BBB633h; retf 001Bh0_2_04D2915F
    Source: C:\Users\user\Desktop\pago12_14299038859.exeCode function: 0_2_04D24344 push 8122E3ECh; ret 0_2_04D24349
    Source: C:\Users\user\Desktop\pago12_14299038859.exeCode function: 0_2_04D27371 pushfd ; iretd 0_2_04D29C58
    Source: C:\Users\user\Desktop\pago12_14299038859.exeCode function: 0_2_04D27368 pushfd ; iretd 0_2_04D29C58
    Source: C:\Users\user\Desktop\pago12_14299038859.exeCode function: 0_2_04D21F01 push esi; ret 0_2_04D21F02
    Source: C:\Users\user\Desktop\pago12_14299038859.exeCode function: 0_2_04D29B93 pushfd ; iretd 0_2_04D29C58
    Source: initial sampleStatic PE information: section name: .text entropy: 7.15645216813
    Source: C:\Users\user\Desktop\pago12_14299038859.exeProcess information set: NOOPENFILEERRORBOXJump to behavior
    Source: C:\Users\user\Desktop\pago12_14299038859.exeProcess information set: NOOPENFILEERRORBOXJump to behavior
    Source: C:\Users\user\Desktop\pago12_14299038859.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\pago12_14299038859.exeRDTSC instruction interceptor: First address: 0000000004D27C16 second address: 0000000004D27C16 instructions: 0x00000000 rdtsc 0x00000002 mov eax, B4901491h 0x00000007 sub eax, 05E3F0C7h 0x0000000c xor eax, 8F9A272Fh 0x00000011 sub eax, 213604E4h 0x00000016 cpuid 0x00000018 popad 0x00000019 call 00007F6BBC38AE6Dh 0x0000001e lfence 0x00000021 mov edx, 238EE826h 0x00000026 sub edx, 0388C43Eh 0x0000002c xor edx, E448541Bh 0x00000032 xor edx, BBB077E7h 0x00000038 mov edx, dword ptr [edx] 0x0000003a lfence 0x0000003d ret 0x0000003e sub edx, esi 0x00000040 ret 0x00000041 pop ecx 0x00000042 add edi, edx 0x00000044 dec ecx 0x00000045 mov dword ptr [ebp+00000229h], AD8B339Ah 0x0000004f xor dword ptr [ebp+00000229h], 22419229h 0x00000059 xor dword ptr [ebp+00000229h], 3996C157h 0x00000063 sub dword ptr [ebp+00000229h], B65C60E4h 0x0000006d cmp ecx, dword ptr [ebp+00000229h] 0x00000073 jne 00007F6BBC38AD87h 0x00000075 cmp cx, ax 0x00000078 mov dword ptr [ebp+0000020Bh], ebx 0x0000007e mov ebx, ecx 0x00000080 push ebx 0x00000081 mov ebx, dword ptr [ebp+0000020Bh] 0x00000087 jmp 00007F6BBC38AE2Eh 0x00000089 cmp dl, bl 0x0000008b call 00007F6BBC38AE71h 0x00000090 call 00007F6BBC38AE8Eh 0x00000095 lfence 0x00000098 mov edx, 238EE826h 0x0000009d sub edx, 0388C43Eh 0x000000a3 xor edx, E448541Bh 0x000000a9 xor edx, BBB077E7h 0x000000af mov edx, dword ptr [edx] 0x000000b1 lfence 0x000000b4 ret 0x000000b5 mov esi, edx 0x000000b7 pushad 0x000000b8 rdtsc
    Source: C:\Users\user\Desktop\pago12_14299038859.exeCode function: 0_2_04D27C0E rdtsc 0_2_04D27C0E
    Source: C:\Users\user\Desktop\pago12_14299038859.exeCode function: 0_2_04D2B2F5 mov eax, dword ptr fs:[00000030h]0_2_04D2B2F5
    Source: C:\Users\user\Desktop\pago12_14299038859.exeCode function: 0_2_04D2C259 mov eax, dword ptr fs:[00000030h]0_2_04D2C259
    Source: C:\Users\user\Desktop\pago12_14299038859.exeCode function: 0_2_04D2C226 mov eax, dword ptr fs:[00000030h]0_2_04D2C226
    Source: C:\Users\user\Desktop\pago12_14299038859.exeCode function: 0_2_04D2ACF0 mov eax, dword ptr fs:[00000030h]0_2_04D2ACF0
    Source: C:\Users\user\Desktop\pago12_14299038859.exeCode function: 0_2_04D27A41 mov eax, dword ptr fs:[00000030h]0_2_04D27A41
    Source: C:\Users\user\Desktop\pago12_14299038859.exeCode function: 0_2_04D27C0E rdtsc 0_2_04D27C0E
    Source: C:\Users\user\Desktop\pago12_14299038859.exeCode function: 0_2_04D2D38F RtlAddVectoredExceptionHandler,0_2_04D2D38F
    Source: pago12_14299038859.exe, 00000000.00000002.1196704342.0000000000C40000.00000002.00020000.sdmpBinary or memory string: Program Manager
    Source: pago12_14299038859.exe, 00000000.00000002.1196704342.0000000000C40000.00000002.00020000.sdmpBinary or memory string: Shell_TrayWnd
    Source: pago12_14299038859.exe, 00000000.00000002.1196704342.0000000000C40000.00000002.00020000.sdmpBinary or memory string: Progman
    Source: pago12_14299038859.exe, 00000000.00000002.1196704342.0000000000C40000.00000002.00020000.sdmpBinary or memory string: Progmanlock

    Mitre Att&ck Matrix

    Initial AccessExecutionPersistencePrivilege EscalationDefense EvasionCredential AccessDiscoveryLateral MovementCollectionExfiltrationCommand and ControlNetwork EffectsRemote Service EffectsImpact
    Valid AccountsWindows Management InstrumentationPath InterceptionProcess Injection1Software Packing1OS Credential DumpingSecurity Software Discovery11Remote 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 ScriptsProcess Injection1LSASS MemoryProcess Discovery1Remote Desktop ProtocolData from Removable MediaExfiltration Over BluetoothApplication Layer Protocol1Exploit SS7 to Redirect Phone Calls/SMSRemotely Wipe Data Without AuthorizationDevice Lockout
    Domain AccountsAt (Linux)Logon Script (Windows)Logon Script (Windows)Obfuscated Files or Information2Security 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.