Loading ...

Play interactive tourEdit tour

Analysis Report 267f4280000.dll

Overview

General Information

Sample Name:267f4280000.dll
Analysis ID:403756
MD5:5e5f1596b33a674cfd76c6d2c05ad8a7
SHA1:4b2c6c39de4d362ef94e7fd306ce1b4e1eee1217
SHA256:cd2dd8bec4b30b7b7f69c1403c2fa19b1715e3e554c4fd595081e4f395c0d119
Infos:

Most interesting Screenshot:

Detection

Ursnif
Score:60
Range:0 - 100
Whitelisted:false
Confidence:100%

Signatures

Antivirus / Scanner detection for submitted sample
Yara detected Ursnif
Machine Learning detection for sample
Checks if the current process is being debugged
Creates a process in suspended mode (likely to inject code)
PE file does not import any functions
Program does not show much activity (idle)
Tries to load missing DLLs

Classification

Startup

  • System is w10x64
  • loaddll64.exe (PID: 7064 cmdline: loaddll64.exe 'C:\Users\user\Desktop\267f4280000.dll' MD5: A84133CCB118CF35D49A423CD836D0EF)
    • cmd.exe (PID: 7076 cmdline: cmd.exe /C rundll32.exe 'C:\Users\user\Desktop\267f4280000.dll',#1 MD5: 4E2ACF4F8A396486AB4268C94A6A245F)
      • rundll32.exe (PID: 7104 cmdline: rundll32.exe 'C:\Users\user\Desktop\267f4280000.dll',#1 MD5: 73C519F050C20580F8A62C849D49215A)
    • rundll32.exe (PID: 7092 cmdline: rundll32.exe C:\Users\user\Desktop\267f4280000.dll,#1 MD5: 73C519F050C20580F8A62C849D49215A)
  • cleanup

Malware Configuration

No configs have been found

Yara Overview

Initial Sample

SourceRuleDescriptionAuthorStrings
267f4280000.dllJoeSecurity_UrsnifYara detected UrsnifJoe Security

    Sigma Overview

    No Sigma rule has matched

    Signature Overview

    Click to jump to signature section

    Show All Signature Results

    AV Detection:

    barindex
    Antivirus / Scanner detection for submitted sampleShow sources
    Source: 267f4280000.dllAvira: detected
    Machine Learning detection for sampleShow sources
    Source: 267f4280000.dllJoe Sandbox ML: detected
    Source: 267f4280000.dllString found in binary or memory: http://constitution.org/usdeclar.txt
    Source: 267f4280000.dllString found in binary or memory: http://constitution.org/usdeclar.txtC:
    Source: 267f4280000.dllString found in binary or memory: http://https://file://USER.ID%lu.exe/upd

    Key, Mouse, Clipboard, Microphone and Screen Capturing:

    barindex
    Yara detected UrsnifShow sources
    Source: Yara matchFile source: 267f4280000.dll, type: SAMPLE

    E-Banking Fraud:

    barindex
    Yara detected UrsnifShow sources
    Source: Yara matchFile source: 267f4280000.dll, type: SAMPLE
    Source: 267f4280000.dllStatic PE information: No import functions for PE file found
    Source: C:\Windows\System32\loaddll64.exeSection loaded: .dllJump to behavior
    Source: C:\Windows\System32\loaddll64.exeSection loaded: .dllJump to behavior
    Source: classification engineClassification label: mal60.troj.winDLL@7/0@0/0
    Source: 267f4280000.dllStatic PE information: Section: .text IMAGE_SCN_MEM_EXECUTE, IMAGE_SCN_CNT_CODE, IMAGE_SCN_MEM_READ
    Source: C:\Windows\System32\loaddll64.exeKey opened: HKEY_LOCAL_MACHINE\Software\Policies\Microsoft\Windows\Safer\CodeIdentifiersJump to behavior
    Source: C:\Windows\System32\loaddll64.exeProcess created: C:\Windows\System32\rundll32.exe rundll32.exe C:\Users\user\Desktop\267f4280000.dll,#1
    Source: unknownProcess created: C:\Windows\System32\loaddll64.exe loaddll64.exe 'C:\Users\user\Desktop\267f4280000.dll'
    Source: C:\Windows\System32\loaddll64.exeProcess created: C:\Windows\System32\cmd.exe cmd.exe /C rundll32.exe 'C:\Users\user\Desktop\267f4280000.dll',#1
    Source: C:\Windows\System32\loaddll64.exeProcess created: C:\Windows\System32\rundll32.exe rundll32.exe C:\Users\user\Desktop\267f4280000.dll,#1
    Source: C:\Windows\System32\cmd.exeProcess created: C:\Windows\System32\rundll32.exe rundll32.exe 'C:\Users\user\Desktop\267f4280000.dll',#1
    Source: C:\Windows\System32\loaddll64.exeProcess created: C:\Windows\System32\cmd.exe cmd.exe /C rundll32.exe 'C:\Users\user\Desktop\267f4280000.dll',#1Jump to behavior
    Source: C:\Windows\System32\loaddll64.exeProcess created: C:\Windows\System32\rundll32.exe rundll32.exe C:\Users\user\Desktop\267f4280000.dll,#1Jump to behavior
    Source: C:\Windows\System32\cmd.exeProcess created: C:\Windows\System32\rundll32.exe rundll32.exe 'C:\Users\user\Desktop\267f4280000.dll',#1Jump to behavior
    Source: C:\Windows\System32\rundll32.exeAutomated click: OK
    Source: C:\Windows\System32\rundll32.exeAutomated click: OK
    Source: 267f4280000.dllStatic PE information: Image base 0x180000000 > 0x60000000

    Hooking and other Techniques for Hiding and Protection:

    barindex
    Yara detected UrsnifShow sources
    Source: Yara matchFile source: 267f4280000.dll, type: SAMPLE
    Source: C:\Windows\System32\rundll32.exeProcess information set: NOOPENFILEERRORBOXJump to behavior
    Source: C:\Windows\System32\rundll32.exeProcess information set: NOOPENFILEERRORBOXJump to behavior
    Source: all processesThread injection, dropped files, key value created, disk infection and DNS query: no activity detected
    Source: rundll32.exe, 00000002.00000002.657377592.0000019FD1270000.00000002.00000001.sdmp, rundll32.exe, 00000003.00000002.650508722.000002C93CDB0000.00000002.00000001.sdmpBinary or memory string: A Virtual Machine could not be started because Hyper-V is not installed.
    Source: rundll32.exe, 00000002.00000002.657377592.0000019FD1270000.00000002.00000001.sdmp, rundll32.exe, 00000003.00000002.650508722.000002C93CDB0000.00000002.00000001.sdmpBinary or memory string: A communication protocol error has occurred between the Hyper-V Host and Guest Compute Service.
    Source: rundll32.exe, 00000002.00000002.657377592.0000019FD1270000.00000002.00000001.sdmp, rundll32.exe, 00000003.00000002.650508722.000002C93CDB0000.00000002.00000001.sdmpBinary or memory string: The communication protocol version between the Hyper-V Host and Guest Compute Services is not supported.
    Source: rundll32.exe, 00000002.00000002.657377592.0000019FD1270000.00000002.00000001.sdmp, rundll32.exe, 00000003.00000002.650508722.000002C93CDB0000.00000002.00000001.sdmpBinary or memory string: An unknown internal message was received by the Hyper-V Compute Service.
    Source: C:\Windows\System32\loaddll64.exeProcess queried: DebugPortJump to behavior
    Source: all processesThread injection, dropped files, key value created, disk infection and DNS query: no activity detected
    Source: C:\Windows\System32\cmd.exeProcess created: C:\Windows\System32\rundll32.exe rundll32.exe 'C:\Users\user\Desktop\267f4280000.dll',#1Jump to behavior

    Stealing of Sensitive Information:

    barindex
    Yara detected UrsnifShow sources
    Source: Yara matchFile source: 267f4280000.dll, type: SAMPLE

    Remote Access Functionality:

    barindex
    Yara detected UrsnifShow sources
    Source: Yara matchFile source: 267f4280000.dll, type: SAMPLE

    Mitre Att&ck Matrix

    Initial AccessExecutionPersistencePrivilege EscalationDefense EvasionCredential AccessDiscoveryLateral MovementCollectionExfiltrationCommand and ControlNetwork EffectsRemote Service EffectsImpact
    Valid AccountsWindows Management InstrumentationDLL Side-Loading1Process Injection11Virtualization/Sandbox Evasion1OS Credential DumpingSecurity Software Discovery11Remote 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 ScriptsDLL Side-Loading1Rundll321LSASS MemoryVirtualization/Sandbox Evasion1Remote 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)Process Injection11Security Account ManagerSystem Information 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)DLL Side-Loading1NTDSSystem Network Configuration DiscoveryDistributed Component Object ModelInput CaptureScheduled TransferProtocol ImpersonationSIM Card SwapCarrier Billing Fraud

    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
    behaviorgraph top1 signatures2 2 Behavior Graph ID: 403756 Sample: 267f4280000.dll Startdate: 04/05/2021 Architecture: WINDOWS Score: 60 15 Antivirus / Scanner detection for submitted sample 2->15 17 Yara detected  Ursnif 2->17 19 Machine Learning detection for sample 2->19 7 loaddll64.exe 1 2->7         started        process3 process4 9 cmd.exe 1 7->9         started        11 rundll32.exe 7->11         started        process5 13 rundll32.exe 9->13         started       

    Screenshots

    Thumbnails

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

    windows-stand

    Antivirus, Machine Learning and Genetic Malware Detection

    Initial Sample

    SourceDetectionScannerLabelLink
    267f4280000.dll100%AviraHEUR/AGEN.1108168
    267f4280000.dll100%Joe Sandbox ML

    Dropped Files

    No Antivirus matches

    Unpacked PE Files

    No Antivirus matches

    Domains

    No Antivirus matches

    URLs

    SourceDetectionScannerLabelLink
    http://https://file://USER.ID%lu.exe/upd0%Avira URL Cloudsafe
    http://constitution.org/usdeclar.txt0%URL Reputationsafe
    http://constitution.org/usdeclar.txt0%URL Reputationsafe
    http://constitution.org/usdeclar.txt0%URL Reputationsafe
    http://constitution.org/usdeclar.txt0%URL Reputationsafe
    http://constitution.org/usdeclar.txtC:0%URL Reputationsafe
    http://constitution.org/usdeclar.txtC:0%URL Reputationsafe
    http://constitution.org/usdeclar.txtC:0%URL Reputationsafe
    http://constitution.org/usdeclar.txtC:0%URL Reputationsafe

    Domains and IPs

    Contacted Domains

    No contacted domains info

    URLs from Memory and Binaries

    NameSourceMaliciousAntivirus DetectionReputation
    http://https://file://USER.ID%lu.exe/upd267f4280000.dllfalse
    • Avira URL Cloud: safe
    low
    http://constitution.org/usdeclar.txt267f4280000.dllfalse
    • URL Reputation: safe
    • URL Reputation: safe
    • URL Reputation: safe
    • URL Reputation: safe
    unknown
    http://constitution.org/usdeclar.txtC:267f4280000.dllfalse
    • URL Reputation: safe
    • URL Reputation: safe
    • URL Reputation: safe
    • URL Reputation: safe
    unknown

    Contacted IPs

    No contacted IP infos

    General Information

    Joe Sandbox Version:32.0.0 Black Diamond
    Analysis ID:403756
    Start date:04.05.2021
    Start time:11:40:38
    Joe Sandbox Product:CloudBasic
    Overall analysis duration:0h 3m 1s
    Hypervisor based Inspection enabled:false
    Report type:full
    Sample file name:267f4280000.dll
    Cookbook file name:default.jbs
    Analysis system description:Windows 10 64 bit v1803 with Office Professional Plus 2016, Chrome 85, IE 11, Adobe Reader DC 19, Java 8 Update 211
    Number of analysed new started processes analysed:8
    Number of new started drivers analysed:0
    Number of existing processes analysed:0
    Number of existing drivers analysed:0
    Number of injected processes analysed:0
    Technologies:
    • HCA enabled
    • EGA enabled
    • HDC enabled
    • AMSI enabled
    Analysis Mode:default
    Analysis stop reason:Timeout
    Detection:MAL
    Classification:mal60.troj.winDLL@7/0@0/0
    EGA Information:Failed
    HDC Information:Failed
    HCA Information:
    • Successful, ratio: 100%
    • Number of executed functions: 0
    • Number of non-executed functions: 0
    Cookbook Comments:
    • Adjust boot time
    • Enable AMSI
    • Found application associated with file extension: .dll
    • Stop behavior analysis, all processes terminated

    Simulations

    Behavior and APIs

    No simulations

    Joe Sandbox View / Context

    IPs

    No context

    Domains

    No context

    ASN

    No context

    JA3 Fingerprints

    No context

    Dropped Files

    No context

    Created / dropped Files

    No created / dropped files found

    Static File Info

    General

    File type:MS-DOS executable
    Entropy (8bit):6.331124664018959
    TrID:
    • Win64 Dynamic Link Library (generic) (102004/3) 84.88%
    • Win64 Executable (generic) (12005/4) 9.99%
    • DOS Executable Borland Pascal 7.0x (2037/25) 1.69%
    • Generic Win/DOS Executable (2004/3) 1.67%
    • DOS Executable Generic (2002/1) 1.67%
    File name:267f4280000.dll
    File size:223744
    MD5:5e5f1596b33a674cfd76c6d2c05ad8a7
    SHA1:4b2c6c39de4d362ef94e7fd306ce1b4e1eee1217
    SHA256:cd2dd8bec4b30b7b7f69c1403c2fa19b1715e3e554c4fd595081e4f395c0d119
    SHA512:32b91ab50260bc8e516ab9600345b0c8a4ba1545f58dad39e954c28fdb5ee2ffdd6512ff86c3854b9f700434e91f0ad7290bba09058a413d239d2ca68f9f75ec
    SSDEEP:3072:fWLHqJ4VtWYQUVpsPHQqdPFQ6l7Bz9DHzcUvNfxYPr9fGWg+Bm5kf+DLm:4qO/rsPHN7Q6l7Bz9zhvNJYPrg1nL
    File Content Preview:MZ......................................................................................................................................................................................................................................................PE..d..

    File Icon

    Icon Hash:74f0e4ecccdce0e4

    Static PE Info

    General

    Entrypoint:0x1800080e4
    Entrypoint Section:.text
    Digitally signed:false
    Imagebase:0x180000000
    Subsystem:windows gui
    Image File Characteristics:EXECUTABLE_IMAGE, DLL, LARGE_ADDRESS_AWARE
    DLL Characteristics:
    Time Stamp:0x60804A27 [Wed Apr 21 15:52:07 2021 UTC]
    TLS Callbacks:
    CLR (.Net) Version:
    OS Version Major:4
    OS Version Minor:0
    File Version Major:4
    File Version Minor:0
    Subsystem Version Major:4
    Subsystem Version Minor:0
    Import Hash:

    Entrypoint Preview

    Instruction
    inc eax
    push ebx
    dec eax
    sub esp, 20h
    test edx, edx
    mov ebx, 00000001h
    je 00007FFBD4D2CD96h
    cmp edx, ebx
    jne 00007FFBD4D2CDA1h
    mov eax, ebx
    lock xadd dword ptr [0002B8AFh], eax
    add eax, ebx
    cmp eax, ebx
    jne 00007FFBD4D2CD91h
    dec ecx
    mov edx, eax
    call 00007FFBD4D3FB42h
    test eax, eax
    je 00007FFBD4D2CD85h
    xor ebx, ebx
    jmp 00007FFBD4D2CD81h
    lock add dword ptr [0002B891h], FFFFFFFFh
    jne 00007FFBD4D2CD77h
    call 00007FFBD4D3EC03h
    mov eax, ebx
    dec eax
    add esp, 20h
    pop ebx
    ret
    int3
    int3
    dec eax
    mov dword ptr [esp+08h], ebx
    dec eax
    mov dword ptr [esp+10h], ebp
    dec eax
    mov dword ptr [esp+18h], esi
    push edi
    dec eax
    sub esp, 20h
    cmp dword ptr [0002BE31h], 00000000h
    inc ecx
    mov ebx, ecx
    dec ecx
    mov esi, eax
    dec eax
    mov eax, edx
    je 00007FFBD4D2CE13h
    xor edx, edx
    dec eax
    mov ecx, eax
    call 00007FFBD4D27395h
    dec eax
    mov ecx, dword ptr [0002B83Dh]
    dec esp
    lea eax, dword ptr [ebx+01h]
    xor edx, edx
    dec eax
    mov ebp, eax
    call dword ptr [00024F26h]
    dec eax
    test eax, eax
    dec eax
    mov edi, eax
    je 00007FFBD4D2CDE7h
    dec esp
    mov eax, ebx
    dec eax
    mov edx, esi
    dec eax
    mov ecx, eax
    call 00007FFBD4D4428Bh
    dec eax
    lea ecx, dword ptr [0002BDB9h]
    mov byte ptr [ebx+edi], 00000000h
    call dword ptr [0002504Fh]
    lock add dword ptr [0002BDCFh], 01h
    dec eax
    lea ecx, dword ptr [00000000h]

    Data Directories

    NameVirtual AddressVirtual Size Is in Section
    IMAGE_DIRECTORY_ENTRY_EXPORT0x31b100x38.rdata
    IMAGE_DIRECTORY_ENTRY_IMPORT0x30a200x3c.rdata
    IMAGE_DIRECTORY_ENTRY_RESOURCE0x00x0
    IMAGE_DIRECTORY_ENTRY_EXCEPTION0x340000x17ac.pdata
    IMAGE_DIRECTORY_ENTRY_SECURITY0x00x0
    IMAGE_DIRECTORY_ENTRY_BASERELOC0x390000x344.reloc
    IMAGE_DIRECTORY_ENTRY_DEBUG0x00x0
    IMAGE_DIRECTORY_ENTRY_COPYRIGHT0x00x0
    IMAGE_DIRECTORY_ENTRY_GLOBALPTR0x00x0
    IMAGE_DIRECTORY_ENTRY_TLS0x00x0
    IMAGE_DIRECTORY_ENTRY_LOAD_CONFIG0x00x0
    IMAGE_DIRECTORY_ENTRY_BOUND_IMPORT0x00x0
    IMAGE_DIRECTORY_ENTRY_IAT0x2d0000x530.rdata
    IMAGE_DIRECTORY_ENTRY_DELAY_IMPORT0x2eda40x1e0.rdata
    IMAGE_DIRECTORY_ENTRY_COM_DESCRIPTOR0x00x0
    IMAGE_DIRECTORY_ENTRY_RESERVED0x00x0

    Sections

    NameVirtual AddressVirtual SizeRaw SizeXored PEZLIB ComplexityFile TypeEntropyCharacteristics
    .text0x10000x2ba460x2bc00False0.568303571429data6.33861296477IMAGE_SCN_MEM_EXECUTE, IMAGE_SCN_CNT_CODE, IMAGE_SCN_MEM_READ
    .rdata0x2d0000x4b480x4c00False0.403114720395data5.25264814147IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_MEM_READ
    .data0x320000x1f880x1a00False0.308293269231lif file3.73537560796IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_MEM_WRITE, IMAGE_SCN_MEM_READ
    .pdata0x340000x17ac0x1800False0.53857421875data5.30366145469IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_MEM_READ
    .bss0x360000x21480x2200False0.427504595588data4.96451183531IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_MEM_WRITE, IMAGE_SCN_MEM_READ
    .reloc0x390000x10000xa00False0.458984375data4.2959680462IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_MEM_READ

    Network Behavior

    No network behavior found

    Code Manipulations

    Statistics

    CPU Usage

    Click to jump to process

    Memory Usage

    Click to jump to process

    Behavior

    Click to jump to process

    System Behavior

    General

    Start time:11:41:22
    Start date:04/05/2021
    Path:C:\Windows\System32\loaddll64.exe
    Wow64 process (32bit):false
    Commandline:loaddll64.exe 'C:\Users\user\Desktop\267f4280000.dll'
    Imagebase:0x7ff6829a0000
    File size:140288 bytes
    MD5 hash:A84133CCB118CF35D49A423CD836D0EF
    Has elevated privileges:true
    Has administrator privileges:true
    Programmed in:C, C++ or other language
    Reputation:moderate

    General

    Start time:11:41:23
    Start date:04/05/2021
    Path:C:\Windows\System32\cmd.exe
    Wow64 process (32bit):false
    Commandline:cmd.exe /C rundll32.exe 'C:\Users\user\Desktop\267f4280000.dll',#1
    Imagebase:0x7ff622070000
    File size:273920 bytes
    MD5 hash:4E2ACF4F8A396486AB4268C94A6A245F
    Has elevated privileges:true
    Has administrator privileges:true
    Programmed in:C, C++ or other language
    Reputation:high

    General

    Start time:11:41:23
    Start date:04/05/2021
    Path:C:\Windows\System32\rundll32.exe
    Wow64 process (32bit):false
    Commandline:rundll32.exe C:\Users\user\Desktop\267f4280000.dll,#1
    Imagebase:0x7ff603d60000
    File size:69632 bytes
    MD5 hash:73C519F050C20580F8A62C849D49215A
    Has elevated privileges:true
    Has administrator privileges:true
    Programmed in:C, C++ or other language
    Reputation:high

    General

    Start time:11:41:23
    Start date:04/05/2021
    Path:C:\Windows\System32\rundll32.exe
    Wow64 process (32bit):false
    Commandline:rundll32.exe 'C:\Users\user\Desktop\267f4280000.dll',#1
    Imagebase:0x7ff603d60000
    File size:69632 bytes
    MD5 hash:73C519F050C20580F8A62C849D49215A
    Has elevated privileges:true
    Has administrator privileges:true
    Programmed in:C, C++ or other language
    Reputation:high

    Disassembly

    Code Analysis

    Reset < >