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Analysis Report ACS route, aircraft cond. req information & doc00710020210501154406 PDF.exe

Overview

General Information

Sample Name:ACS route, aircraft cond. req information & doc00710020210501154406 PDF.exe
Analysis ID:403997
MD5:5777362ea00ed2dd6c40121450291e7d
SHA1:4cbdfa68ef829f9709ee74bb883985d8a18c4048
SHA256:f6f23db6c1ecdf6b5766a22434e7a9c24585ecf94cf8a784f1a15640d0f0ba45
Infos:

Most interesting Screenshot:

Detection

GuLoader
Score:80
Range:0 - 100
Whitelisted:false
Confidence:100%

Signatures

DLL reload attack detected
Found malware configuration
Malicious sample detected (through community Yara rule)
Yara detected GuLoader
C2 URLs / IPs found in malware configuration
Tries to detect virtualization through RDTSC time measurements
Contains functionality for execution timing, often used to detect debuggers
Contains functionality to call native functions
Contains functionality to read the PEB
PE file contains executable resources (Code or Archives)
Program does not show much activity (idle)
Queries the volume information (name, serial number etc) of a device
Sample file is different than original file name gathered from version info
Uses 32bit PE files
Yara signature match

Classification

Startup

  • System is w10x64
  • cleanup

Malware Configuration

Threatname: GuLoader

{"Payload URL": "https://drive.google.com/uc?export=download&id=1hJRfPD7mATt1zd_Z0FIM8Q9qnryDNQsL"}

Yara Overview

Memory Dumps

SourceRuleDescriptionAuthorStrings
00000000.00000002.1290771999.0000000002B50000.00000040.00000001.sdmpJoeSecurity_GuLoader_2Yara detected GuLoaderJoe Security
    00000000.00000000.204937287.000000000040C000.00000020.00020000.sdmpLokiBot_Dropper_Packed_R11_Feb18Auto-generated rule - file scan copy.pdf.r11Florian Roth
    • 0x110c:$s1: C:\Program Files (x86)\Microsoft Visual Studio\VB98\VB6.OLB
    00000000.00000002.1285251776.000000000040C000.00000020.00020000.sdmpLokiBot_Dropper_Packed_R11_Feb18Auto-generated rule - file scan copy.pdf.r11Florian Roth
    • 0x110c:$s1: C:\Program Files (x86)\Microsoft Visual Studio\VB98\VB6.OLB

    Sigma Overview

    No Sigma rule has matched

    Signature Overview

    Click to jump to signature section

    Show All Signature Results

    AV Detection:

    barindex
    Found malware configurationShow sources
    Source: 00000000.00000002.1290771999.0000000002B50000.00000040.00000001.sdmpMalware Configuration Extractor: GuLoader {"Payload URL": "https://drive.google.com/uc?export=download&id=1hJRfPD7mATt1zd_Z0FIM8Q9qnryDNQsL"}
    Source: ACS route, aircraft cond. req information & doc00710020210501154406 PDF.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=1hJRfPD7mATt1zd_Z0FIM8Q9qnryDNQsL

    System Summary:

    barindex
    Malicious sample detected (through community Yara rule)Show sources
    Source: 00000000.00000000.204937287.000000000040C000.00000020.00020000.sdmp, type: MEMORYMatched rule: Auto-generated rule - file scan copy.pdf.r11 Author: Florian Roth
    Source: 00000000.00000002.1285251776.000000000040C000.00000020.00020000.sdmp, type: MEMORYMatched rule: Auto-generated rule - file scan copy.pdf.r11 Author: Florian Roth
    Source: C:\Users\user\Desktop\ACS route, aircraft cond. req information & doc00710020210501154406 PDF.exeCode function: 0_2_02B54FB9 NtProtectVirtualMemory,0_2_02B54FB9
    Source: C:\Users\user\Desktop\ACS route, aircraft cond. req information & doc00710020210501154406 PDF.exeCode function: 0_2_02B525DA NtAllocateVirtualMemory,0_2_02B525DA
    Source: C:\Users\user\Desktop\ACS route, aircraft cond. req information & doc00710020210501154406 PDF.exeCode function: 0_2_02B52786 NtAllocateVirtualMemory,0_2_02B52786
    Source: C:\Users\user\Desktop\ACS route, aircraft cond. req information & doc00710020210501154406 PDF.exeCode function: 0_2_02B52781 NtAllocateVirtualMemory,0_2_02B52781
    Source: ACS route, aircraft cond. req information & doc00710020210501154406 PDF.exeStatic PE information: Resource name: RT_VERSION type: COM executable for DOS
    Source: ACS route, aircraft cond. req information & doc00710020210501154406 PDF.exeBinary or memory string: OriginalFilenamePHILAD.exe vs ACS route, aircraft cond. req information & doc00710020210501154406 PDF.exe
    Source: ACS route, aircraft cond. req information & doc00710020210501154406 PDF.exeStatic PE information: LOCAL_SYMS_STRIPPED, 32BIT_MACHINE, EXECUTABLE_IMAGE, LINE_NUMS_STRIPPED, RELOCS_STRIPPED
    Source: 00000000.00000000.204937287.000000000040C000.00000020.00020000.sdmp, type: MEMORYMatched rule: LokiBot_Dropper_Packed_R11_Feb18 date = 2018-02-14, hash1 = 3b248d40fd7acb839cc592def1ed7652734e0e5ef93368be3c36c042883a3029, author = Florian Roth, description = Auto-generated rule - file scan copy.pdf.r11, reference = https://app.any.run/tasks/401df4d9-098b-4fd0-86e0-7a52ce6ddbf5, license = https://creativecommons.org/licenses/by-nc/4.0/
    Source: 00000000.00000002.1285251776.000000000040C000.00000020.00020000.sdmp, type: MEMORYMatched rule: LokiBot_Dropper_Packed_R11_Feb18 date = 2018-02-14, hash1 = 3b248d40fd7acb839cc592def1ed7652734e0e5ef93368be3c36c042883a3029, author = Florian Roth, description = Auto-generated rule - file scan copy.pdf.r11, reference = https://app.any.run/tasks/401df4d9-098b-4fd0-86e0-7a52ce6ddbf5, license = https://creativecommons.org/licenses/by-nc/4.0/
    Source: classification engineClassification label: mal80.troj.evad.winEXE@1/0@0/0
    Source: C:\Users\user\Desktop\ACS route, aircraft cond. req information & doc00710020210501154406 PDF.exeFile created: C:\Users\user\AppData\Local\Temp\~DF6274FC7E47975599.TMPJump to behavior
    Source: ACS route, aircraft cond. req information & doc00710020210501154406 PDF.exeStatic PE information: Section: .text IMAGE_SCN_MEM_EXECUTE, IMAGE_SCN_CNT_CODE, IMAGE_SCN_MEM_READ
    Source: C:\Users\user\Desktop\ACS route, aircraft cond. req information & doc00710020210501154406 PDF.exeSection loaded: C:\Windows\SysWOW64\msvbvm60.dllJump to behavior
    Source: C:\Users\user\Desktop\ACS route, aircraft cond. req information & doc00710020210501154406 PDF.exeKey opened: HKEY_CURRENT_USER\Software\Policies\Microsoft\Windows\Safer\CodeIdentifiersJump to behavior

    Data Obfuscation:

    barindex
    Yara detected GuLoaderShow sources
    Source: Yara matchFile source: 00000000.00000002.1290771999.0000000002B50000.00000040.00000001.sdmp, type: MEMORY

    Hooking and other Techniques for Hiding and Protection:

    barindex
    DLL reload attack detectedShow sources
    Source: C:\Users\user\Desktop\ACS route, aircraft cond. req information & doc00710020210501154406 PDF.exeModule Loaded: Original DLL: "C:\USERS\user\DESKTOP\ACS ROUTE reload: AIRCRAFT COND. REQ INFORMATION & DOC00710020210501154406 PDF.EXE"
    Source: C:\Users\user\Desktop\ACS route, aircraft cond. req information & doc00710020210501154406 PDF.exeProcess information set: NOOPENFILEERRORBOXJump to behavior
    Source: C:\Users\user\Desktop\ACS route, aircraft cond. req information & doc00710020210501154406 PDF.exeProcess information set: NOOPENFILEERRORBOXJump to behavior
    Source: C:\Users\user\Desktop\ACS route, aircraft cond. req information & doc00710020210501154406 PDF.exeProcess information set: NOOPENFILEERRORBOXJump to behavior
    Source: C:\Users\user\Desktop\ACS route, aircraft cond. req information & doc00710020210501154406 PDF.exeProcess information set: NOOPENFILEERRORBOXJump to behavior
    Source: C:\Users\user\Desktop\ACS route, aircraft cond. req information & doc00710020210501154406 PDF.exeProcess information set: NOOPENFILEERRORBOXJump to behavior
    Source: C:\Users\user\Desktop\ACS route, aircraft cond. req information & doc00710020210501154406 PDF.exeProcess information set: NOOPENFILEERRORBOXJump to behavior
    Source: C:\Users\user\Desktop\ACS route, aircraft cond. req information & doc00710020210501154406 PDF.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\ACS route, aircraft cond. req information & doc00710020210501154406 PDF.exeRDTSC instruction interceptor: First address: 0000000002B54D0E second address: 0000000002B54D0E instructions: 0x00000000 rdtsc 0x00000002 lfence 0x00000005 shl edx, 20h 0x00000008 or edx, eax 0x0000000a popad 0x0000000b inc ecx 0x0000000c inc ebx 0x0000000d cmp bh, bh 0x0000000f cmp dword ptr [ebx], 9090C350h 0x00000015 jne 00007F0481024659h 0x00000017 cmp edx, dword ptr [ebx] 0x00000019 jne 00007F048102464Bh 0x0000001b cmp byte ptr [ebx], FFFFFFE8h 0x0000001e jne 00007F04810246B3h 0x00000020 fnop 0x00000022 cmp byte ptr [ebx], FFFFFFB8h 0x00000025 jne 00007F0481024664h 0x00000027 cmp ecx, 00002000h 0x0000002d jne 00007F048102455Ch 0x00000033 pushad 0x00000034 lfence 0x00000037 rdtsc
    Source: C:\Users\user\Desktop\ACS route, aircraft cond. req information & doc00710020210501154406 PDF.exeRDTSC instruction interceptor: First address: 0000000002B5243D second address: 0000000002B5243D instructions: 0x00000000 rdtsc 0x00000002 xor eax, eax 0x00000004 inc eax 0x00000005 cpuid 0x00000007 popad 0x00000008 call 00007F04803CB82Ah 0x0000000d lfence 0x00000010 mov edx, dword ptr [7FFE0014h] 0x00000016 lfence 0x00000019 ret 0x0000001a sub edx, esi 0x0000001c ret 0x0000001d pop ecx 0x0000001e add edi, edx 0x00000020 dec ecx 0x00000021 cmp ax, cx 0x00000024 cmp ecx, 00000000h 0x00000027 jne 00007F04803CB80Bh 0x00000029 push ecx 0x0000002a test ebx, edx 0x0000002c cmp dx, cx 0x0000002f call 00007F04803CB84Bh 0x00000034 call 00007F04803CB83Ah 0x00000039 lfence 0x0000003c mov edx, dword ptr [7FFE0014h] 0x00000042 lfence 0x00000045 ret 0x00000046 mov esi, edx 0x00000048 pushad 0x00000049 rdtsc
    Source: C:\Users\user\Desktop\ACS route, aircraft cond. req information & doc00710020210501154406 PDF.exeCode function: 0_2_02B514AA rdtsc 0_2_02B514AA
    Source: all processesThread injection, dropped files, key value created, disk infection and DNS query: no activity detected
    Source: C:\Users\user\Desktop\ACS route, aircraft cond. req information & doc00710020210501154406 PDF.exeCode function: 0_2_02B514AA rdtsc 0_2_02B514AA
    Source: C:\Users\user\Desktop\ACS route, aircraft cond. req information & doc00710020210501154406 PDF.exeCode function: 0_2_02B51240 mov eax, dword ptr fs:[00000030h]0_2_02B51240
    Source: C:\Users\user\Desktop\ACS route, aircraft cond. req information & doc00710020210501154406 PDF.exeCode function: 0_2_02B5424A mov eax, dword ptr fs:[00000030h]0_2_02B5424A
    Source: C:\Users\user\Desktop\ACS route, aircraft cond. req information & doc00710020210501154406 PDF.exeCode function: 0_2_02B523A3 mov eax, dword ptr fs:[00000030h]0_2_02B523A3
    Source: C:\Users\user\Desktop\ACS route, aircraft cond. req information & doc00710020210501154406 PDF.exeCode function: 0_2_02B545A8 mov eax, dword ptr fs:[00000030h]0_2_02B545A8
    Source: C:\Users\user\Desktop\ACS route, aircraft cond. req information & doc00710020210501154406 PDF.exeCode function: 0_2_02B54B81 mov eax, dword ptr fs:[00000030h]0_2_02B54B81
    Source: C:\Users\user\Desktop\ACS route, aircraft cond. req information & doc00710020210501154406 PDF.exeCode function: 0_2_02B5171E mov eax, dword ptr fs:[00000030h]0_2_02B5171E
    Source: C:\Users\user\Desktop\ACS route, aircraft cond. req information & doc00710020210501154406 PDF.exeCode function: 0_2_02B51718 mov eax, dword ptr fs:[00000030h]0_2_02B51718
    Source: C:\Users\user\Desktop\ACS route, aircraft cond. req information & doc00710020210501154406 PDF.exeCode function: 0_2_02B54B5D mov eax, dword ptr fs:[00000030h]0_2_02B54B5D
    Source: all processesThread injection, dropped files, key value created, disk infection and DNS query: no activity detected
    Source: ACS route, aircraft cond. req information & doc00710020210501154406 PDF.exe, 00000000.00000002.1286359625.0000000000D70000.00000002.00000001.sdmpBinary or memory string: Program Manager
    Source: ACS route, aircraft cond. req information & doc00710020210501154406 PDF.exe, 00000000.00000002.1286359625.0000000000D70000.00000002.00000001.sdmpBinary or memory string: Shell_TrayWnd
    Source: ACS route, aircraft cond. req information & doc00710020210501154406 PDF.exe, 00000000.00000002.1286359625.0000000000D70000.00000002.00000001.sdmpBinary or memory string: Progman
    Source: ACS route, aircraft cond. req information & doc00710020210501154406 PDF.exe, 00000000.00000002.1286359625.0000000000D70000.00000002.00000001.sdmpBinary or memory string: Progmanlock
    Source: C:\Users\user\Desktop\ACS route, aircraft cond. req information & doc00710020210501154406 PDF.exeQueries volume information: C:\ VolumeInformationJump to behavior
    Source: C:\Users\user\Desktop\ACS route, aircraft cond. req information & doc00710020210501154406 PDF.exeQueries volume information: C:\ VolumeInformationJump to behavior
    Source: C:\Users\user\Desktop\ACS route, aircraft cond. req information & doc00710020210501154406 PDF.exeQueries volume information: C:\ VolumeInformationJump to behavior

    Mitre Att&ck Matrix

    Initial AccessExecutionPersistencePrivilege EscalationDefense EvasionCredential AccessDiscoveryLateral MovementCollectionExfiltrationCommand and ControlNetwork EffectsRemote Service EffectsImpact
    Valid AccountsWindows Management InstrumentationDLL Side-Loading1Process Injection1Process Injection1OS Credential DumpingSecurity Software Discovery11Remote ServicesData from Local SystemExfiltration Over Other Network MediumApplication Layer Protocol1Eavesdrop on Insecure Network CommunicationRemotely Track Device Without AuthorizationModify System Partition
    Default AccountsScheduled Task/JobBoot or Logon Initialization ScriptsDLL Side-Loading1DLL Side-Loading1LSASS 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 Discovery111SMB/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.