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Windows Analysis Report 6d60000.dll

Overview

General Information

Sample Name:6d60000.dll
Analysis ID:482228
MD5:0c1e422f4711eb432c947fd069bf342f
SHA1:323cb3a64cc15a294fd4960474b50dd8e1aacaa6
SHA256:a60364f1d501bc92914c23b3d5dff0251741ef8816fdd55151decc2234b932de
Tags:exeGozi
Infos:

Most interesting Screenshot:

Detection

Ursnif
Score:72
Range:0 - 100
Whitelisted:false
Confidence:100%

Signatures

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

Classification

Process Tree

  • System is w10x64
  • loaddll64.exe (PID: 4896 cmdline: loaddll64.exe 'C:\Users\user\Desktop\6d60000.dll' MD5: A84133CCB118CF35D49A423CD836D0EF)
    • cmd.exe (PID: 5768 cmdline: cmd.exe /C rundll32.exe 'C:\Users\user\Desktop\6d60000.dll',#1 MD5: 4E2ACF4F8A396486AB4268C94A6A245F)
      • rundll32.exe (PID: 5852 cmdline: rundll32.exe 'C:\Users\user\Desktop\6d60000.dll',#1 MD5: 73C519F050C20580F8A62C849D49215A)
    • rundll32.exe (PID: 2988 cmdline: rundll32.exe C:\Users\user\Desktop\6d60000.dll,#1 MD5: 73C519F050C20580F8A62C849D49215A)
  • cleanup

Malware Configuration

Threatname: Ursnif

{"RSA Public Key": "u9HXwops1KELSmyI9sVCp0RUDHHIjNP4aHGxjzGFry6/imJ45GT8y0VXlGFRc9zyXRVxEXnkK1Sx9S4ULBgKJJV4JjLFFv36DzeAlKEfZ03m1CZU43a/yrQhoFsVYZaqv6diOGxlvmOO3XjBkVrYs6wDfM2BINw64g9oUILCNBiqNe4/ERHY1XF5A1zPxADFkrQNqYSK/9DBLbHAEeI+op4pIv5Nbgcrd9pFPuimjdkwKDHdtdXGfZgsyeNwUzAgLINLN/AE0qhFNbUuqwS1gIyOLDj5QhU6LQJa91ylwbxVtNKXJoOMS3y4dl28It/qrBuUy0ockllB1P88Onqys/92faYbUYzik2bIla+bg2o=", "c2_domain": ["art.microsoftsofymicrosoftsoft.at", "r23cirt55ysvtdvl.onion", "fop.langoonik.com", "fog.taginoka.at", "pop.biopiof.at", "l46t3vgvmtx5wxe6.onion", "v10.avyanok.com", "apr.intoolkom.at", "mas.nagonoman.at"], "ip_check_url": ["curlmyip.net", "ident.me", "l2.io/ip", "whatismyip.akamai.com"], "serpent_key": "kTOVYpceZWWByuJ0", "server": "580", "sleep_time": "5", "SetWaitableTimer_value(CRC_CONFIGTIMEOUT)": "600", "time_value": "600", "SetWaitableTimer_value(CRC_TASKTIMEOUT)": "240", "SetWaitableTimer_value(CRC_SENDTIMEOUT)": "300", "SetWaitableTimer_value(CRC_KNOCKERTIMEOUT)": "240", "not_use(CRC_BCTIMEOUT)": "10", "botnet": "3500", "SetWaitableTimer_value": "60"}

Yara Overview

Initial Sample

SourceRuleDescriptionAuthorStrings
6d60000.dllJoeSecurity_Ursnif_2Yara detected UrsnifJoe Security

    Sigma Overview

    No Sigma rule has matched

    Jbx Signature Overview

    Click to jump to signature section

    Show All Signature Results

    AV Detection:

    barindex
    Antivirus / Scanner detection for submitted sampleShow sources
    Source: 6d60000.dllAvira: detected
    Found malware configurationShow sources
    Source: 6d60000.dllMalware Configuration Extractor: Ursnif {"RSA Public Key": "u9HXwops1KELSmyI9sVCp0RUDHHIjNP4aHGxjzGFry6/imJ45GT8y0VXlGFRc9zyXRVxEXnkK1Sx9S4ULBgKJJV4JjLFFv36DzeAlKEfZ03m1CZU43a/yrQhoFsVYZaqv6diOGxlvmOO3XjBkVrYs6wDfM2BINw64g9oUILCNBiqNe4/ERHY1XF5A1zPxADFkrQNqYSK/9DBLbHAEeI+op4pIv5Nbgcrd9pFPuimjdkwKDHdtdXGfZgsyeNwUzAgLINLN/AE0qhFNbUuqwS1gIyOLDj5QhU6LQJa91ylwbxVtNKXJoOMS3y4dl28It/qrBuUy0ockllB1P88Onqys/92faYbUYzik2bIla+bg2o=", "c2_domain": ["art.microsoftsofymicrosoftsoft.at", "r23cirt55ysvtdvl.onion", "fop.langoonik.com", "fog.taginoka.at", "pop.biopiof.at", "l46t3vgvmtx5wxe6.onion", "v10.avyanok.com", "apr.intoolkom.at", "mas.nagonoman.at"], "ip_check_url": ["curlmyip.net", "ident.me", "l2.io/ip", "whatismyip.akamai.com"], "serpent_key": "kTOVYpceZWWByuJ0", "server": "580", "sleep_time": "5", "SetWaitableTimer_value(CRC_CONFIGTIMEOUT)": "600", "time_value": "600", "SetWaitableTimer_value(CRC_TASKTIMEOUT)": "240", "SetWaitableTimer_value(CRC_SENDTIMEOUT)": "300", "SetWaitableTimer_value(CRC_KNOCKERTIMEOUT)": "240", "not_use(CRC_BCTIMEOUT)": "10", "botnet": "3500", "SetWaitableTimer_value": "60"}
    Multi AV Scanner detection for submitted fileShow sources
    Source: 6d60000.dllReversingLabs: Detection: 46%

    Key, Mouse, Clipboard, Microphone and Screen Capturing:

    barindex
    Yara detected UrsnifShow sources
    Source: Yara matchFile source: 6d60000.dll, type: SAMPLE

    E-Banking Fraud:

    barindex
    Yara detected UrsnifShow sources
    Source: Yara matchFile source: 6d60000.dll, type: SAMPLE
    Source: 6d60000.dllStatic PE information: No import functions for PE file found
    Source: C:\Windows\System32\loaddll64.exeSection loaded: .dll
    Source: C:\Windows\System32\loaddll64.exeSection loaded: .dll
    Source: 6d60000.dllReversingLabs: Detection: 46%
    Source: 6d60000.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\CodeIdentifiers
    Source: classification engineClassification label: mal72.troj.winDLL@7/0@0/0
    Source: C:\Windows\System32\loaddll64.exeProcess created: C:\Windows\System32\rundll32.exe rundll32.exe C:\Users\user\Desktop\6d60000.dll,#1
    Source: unknownProcess created: C:\Windows\System32\loaddll64.exe loaddll64.exe 'C:\Users\user\Desktop\6d60000.dll'
    Source: C:\Windows\System32\loaddll64.exeProcess created: C:\Windows\System32\cmd.exe cmd.exe /C rundll32.exe 'C:\Users\user\Desktop\6d60000.dll',#1
    Source: C:\Windows\System32\loaddll64.exeProcess created: C:\Windows\System32\rundll32.exe rundll32.exe C:\Users\user\Desktop\6d60000.dll,#1
    Source: C:\Windows\System32\cmd.exeProcess created: C:\Windows\System32\rundll32.exe rundll32.exe 'C:\Users\user\Desktop\6d60000.dll',#1
    Source: C:\Windows\System32\loaddll64.exeProcess created: C:\Windows\System32\cmd.exe cmd.exe /C rundll32.exe 'C:\Users\user\Desktop\6d60000.dll',#1
    Source: C:\Windows\System32\loaddll64.exeProcess created: C:\Windows\System32\rundll32.exe rundll32.exe C:\Users\user\Desktop\6d60000.dll,#1
    Source: C:\Windows\System32\cmd.exeProcess created: C:\Windows\System32\rundll32.exe rundll32.exe 'C:\Users\user\Desktop\6d60000.dll',#1
    Source: C:\Windows\System32\rundll32.exeAutomated click: OK
    Source: C:\Windows\System32\rundll32.exeAutomated click: OK
    Source: 6d60000.dllStatic PE information: Image base 0x180000000 > 0x60000000

    Hooking and other Techniques for Hiding and Protection:

    barindex
    Yara detected UrsnifShow sources
    Source: Yara matchFile source: 6d60000.dll, type: SAMPLE
    Source: C:\Windows\System32\rundll32.exeProcess information set: NOOPENFILEERRORBOX
    Source: C:\Windows\System32\rundll32.exeProcess information set: NOOPENFILEERRORBOX
    Source: all processesThread injection, dropped files, key value created, disk infection and DNS query: no activity detected
    Source: all processesThread injection, dropped files, key value created, disk infection and DNS query: no activity detected
    Source: C:\Windows\System32\loaddll64.exeProcess queried: DebugPort
    Source: C:\Windows\System32\cmd.exeProcess created: C:\Windows\System32\rundll32.exe rundll32.exe 'C:\Users\user\Desktop\6d60000.dll',#1

    Stealing of Sensitive Information:

    barindex
    Yara detected UrsnifShow sources
    Source: Yara matchFile source: 6d60000.dll, type: SAMPLE

    Remote Access Functionality:

    barindex
    Yara detected UrsnifShow sources
    Source: Yara matchFile source: 6d60000.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 Discovery1Remote 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: 482228 Sample: 6d60000.dll Startdate: 13/09/2021 Architecture: WINDOWS Score: 72 15 Found malware configuration 2->15 17 Antivirus / Scanner detection for submitted sample 2->17 19 Multi AV Scanner detection for submitted file 2->19 21 Yara detected  Ursnif 2->21 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
    6d60000.dll47%ReversingLabsWin64.Trojan.Ursnif
    6d60000.dll100%AviraHEUR/AGEN.1108168

    Dropped Files

    No Antivirus matches

    Unpacked PE Files

    No Antivirus matches

    Domains

    No Antivirus matches

    URLs

    No Antivirus matches

    Domains and IPs

    Contacted Domains

    No contacted domains info

    Contacted IPs

    No contacted IP infos

    General Information

    Joe Sandbox Version:33.0.0 White Diamond
    Analysis ID:482228
    Start date:13.09.2021
    Start time:15:07:27
    Joe Sandbox Product:CloudBasic
    Overall analysis duration:0h 4m 59s
    Hypervisor based Inspection enabled:false
    Report type:light
    Sample file name:6d60000.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:28
    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:mal72.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
    Warnings:
    Show All
    • Exclude process from analysis (whitelisted): MpCmdRun.exe, BackgroundTransferHost.exe, backgroundTaskHost.exe, SgrmBroker.exe, conhost.exe, svchost.exe, UsoClient.exe
    • Not all processes where analyzed, report is missing behavior information
    • VT rate limit hit for: /opt/package/joesandbox/database/analysis/482228/sample/6d60000.dll

    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):6.444512390574505
    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:6d60000.dll
    File size:247808
    MD5:0c1e422f4711eb432c947fd069bf342f
    SHA1:323cb3a64cc15a294fd4960474b50dd8e1aacaa6
    SHA256:a60364f1d501bc92914c23b3d5dff0251741ef8816fdd55151decc2234b932de
    SHA512:3b8e1bb9218a3ebcc2e34cc0a8c33287390a9bb9775e190a002d5fb24777ed604d72aaa10056ed3bce8dc5db283d0bdc3797301ea025be46812e97d96cce47ba
    SSDEEP:6144:1mnZO0GDlypHAT/cxkDyPFXkfh+3m33c56Wjak4S9IS83x:1MZOrEpHAT/cLPF0Im3s56WjaC9J8
    File Content Preview:MZ......................................................................................................................................................................................................................................................PE..d..

    File Icon

    Icon Hash:74f0e4ecccdce0e4

    Static PE Info

    General

    Entrypoint:0x18002acf4
    Entrypoint Section:.text
    Digitally signed:false
    Imagebase:0x180000000
    Subsystem:windows gui
    Image File Characteristics:EXECUTABLE_IMAGE, DLL, LARGE_ADDRESS_AWARE
    DLL Characteristics:
    Time Stamp:0x61126E40 [Tue Aug 10 12:17:04 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 00007F08F4AB4B16h
    cmp edx, ebx
    jne 00007F08F4AB4B21h
    mov eax, ebx
    lock xadd dword ptr [0000EC9Fh], eax
    add eax, ebx
    cmp eax, ebx
    jne 00007F08F4AB4B11h
    dec ecx
    mov edx, eax
    call 00007F08F4AB5006h
    test eax, eax
    je 00007F08F4AB4B05h
    xor ebx, ebx
    jmp 00007F08F4AB4B01h
    lock add dword ptr [0000EC81h], FFFFFFFFh
    jne 00007F08F4AB4AF7h
    call 00007F08F4A9B6C7h
    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
    inc ecx
    push esp
    inc ecx
    push ebp
    dec eax
    sub esp, 20h
    inc ecx
    mov eax, eax
    dec eax
    mov esi, ecx
    dec ecx
    mov edi, ecx
    dec eax
    lea ebp, dword ptr [edx+eax*2]
    dec esp
    mov esp, edx
    xor ebx, ebx
    dec eax
    mov ecx, ebp
    call dword ptr [0000644Dh]
    dec eax
    test edi, edi
    inc esp
    mov ebp, eax
    je 00007F08F4AB4AFDh
    dec eax
    mov ecx, edi
    call dword ptr [0000643Ch]
    mov ebx, eax
    dec eax
    mov ecx, esi
    call dword ptr [00006431h]
    dec eax
    mov ecx, dword ptr [0000EC12h]
    xor edx, edx
    inc ecx
    add eax, ebp
    inc esp
    lea eax, dword ptr [eax+ebx+03h]
    dec ebp
    add eax, eax
    call dword ptr [000062C7h]
    dec eax
    test eax, eax
    dec eax
    mov ebx, eax
    je 00007F08F4AB4BA0h
    dec eax
    mov edx, esi
    dec eax
    mov ecx, eax

    Data Directories

    NameVirtual AddressVirtual Size Is in Section
    IMAGE_DIRECTORY_ENTRY_EXPORT0x378000x37.rdata
    IMAGE_DIRECTORY_ENTRY_IMPORT0x367f80x3c.rdata
    IMAGE_DIRECTORY_ENTRY_RESOURCE0x00x0
    IMAGE_DIRECTORY_ENTRY_EXCEPTION0x3a0000x1908.pdata
    IMAGE_DIRECTORY_ENTRY_SECURITY0x00x0
    IMAGE_DIRECTORY_ENTRY_BASERELOC0x3e0000x32c.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_IAT0x310000x4f0.rdata
    IMAGE_DIRECTORY_ENTRY_DELAY_IMPORT0x34e9c0x1e0.rdata
    IMAGE_DIRECTORY_ENTRY_COM_DESCRIPTOR0x00x0
    IMAGE_DIRECTORY_ENTRY_RESERVED0x00x0

    Sections

    NameVirtual AddressVirtual SizeRaw SizeXored PEZLIB ComplexityFile TypeEntropyCharacteristics
    .text0x10000x2fbbc0x2fc00False0.579500368128zlib compressed data6.39419710487IMAGE_SCN_MEM_EXECUTE, IMAGE_SCN_CNT_CODE, IMAGE_SCN_MEM_READ
    .rdata0x310000x68370x6a00False0.372383549528data5.24608685685IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_MEM_READ
    .data0x380000x1e400x1800False0.3369140625lif file3.9828011407IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_MEM_WRITE, IMAGE_SCN_MEM_READ
    .pdata0x3a0000x19080x1a00False0.527644230769data5.34903211258IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_MEM_READ
    .bss0x3c0000x1f500x2000False0.964111328125data7.89630830869IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_MEM_WRITE, IMAGE_SCN_MEM_READ
    .reloc0x3e0000x10000xc00False0.53125data4.88453922321IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_MEM_READ

    Network Behavior

    No network behavior found

    Code Manipulations

    Statistics

    Behavior

    Click to jump to process

    System Behavior

    General

    Start time:15:08:26
    Start date:13/09/2021
    Path:C:\Windows\System32\loaddll64.exe
    Wow64 process (32bit):false
    Commandline:loaddll64.exe 'C:\Users\user\Desktop\6d60000.dll'
    Imagebase:0x7ff6e9180000
    File size:140288 bytes
    MD5 hash:A84133CCB118CF35D49A423CD836D0EF
    Has elevated privileges:true
    Has administrator privileges:true
    Programmed in:C, C++ or other language
    Reputation:high

    General

    Start time:15:08:27
    Start date:13/09/2021
    Path:C:\Windows\System32\cmd.exe
    Wow64 process (32bit):false
    Commandline:cmd.exe /C rundll32.exe 'C:\Users\user\Desktop\6d60000.dll',#1
    Imagebase:0x7ff77d8b0000
    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:15:08:27
    Start date:13/09/2021
    Path:C:\Windows\System32\rundll32.exe
    Wow64 process (32bit):false
    Commandline:rundll32.exe C:\Users\user\Desktop\6d60000.dll,#1
    Imagebase:0x7ff6ca6e0000
    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:15:08:27
    Start date:13/09/2021
    Path:C:\Windows\System32\rundll32.exe
    Wow64 process (32bit):false
    Commandline:rundll32.exe 'C:\Users\user\Desktop\6d60000.dll',#1
    Imagebase:0x7ff6ca6e0000
    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

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