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Analysis Report a1pR5h7AYV

Overview

General Information

Joe Sandbox Version:28.0.0 Lapis Lazuli
Analysis ID:210248
Start date:23.02.2020
Start time:00:54:08
Joe Sandbox Product:CloudBasic
Overall analysis duration:0h 3m 1s
Hypervisor based Inspection enabled:false
Report type:full
Sample file name:a1pR5h7AYV (renamed file extension from none to dll)
Cookbook file name:default.jbs
Analysis system description:Windows 10 64 bit (version 1803) with Office 2016, Adobe Reader DC 19, Chrome 70, Firefox 63, Java 8.171, Flash 30.0.0.113
Number of analysed new started processes analysed:6
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 stop reason:Timeout
Detection:MAL
Classification:mal72.troj.winDLL@4/0@0/1
EGA Information:
  • Successful, ratio: 100%
HDC Information:
  • Successful, ratio: 100% (good quality ratio 91.5%)
  • Quality average: 78.8%
  • Quality standard deviation: 31%
HCA Information:Failed
Cookbook Comments:
  • Adjust boot time
  • Enable AMSI
Warnings:
Show All
  • Exclude process from analysis (whitelisted): dllhost.exe, conhost.exe, CompatTelRunner.exe
Errors:
  • Sigma syntax error: One detector has no map or list, Rule: Discovery of a System Time
  • Sigma syntax error: One detector has no map or list, Rule: File or Folder Permissions Modifications

Detection

StrategyScoreRangeReportingWhitelistedDetection
Threshold720 - 100falsemalicious

Confidence

StrategyScoreRangeFurther Analysis Required?Confidence
Threshold50 - 5false
ConfidenceConfidence


Classification

Mitre Att&ck Matrix

Initial AccessExecutionPersistencePrivilege EscalationDefense EvasionCredential AccessDiscoveryLateral MovementCollectionExfiltrationCommand and ControlNetwork EffectsRemote Service EffectsImpact
Valid AccountsCommand-Line Interface1Winlogon Helper DLLProcess Injection12Process Injection12Credential DumpingSystem Time Discovery1Remote File Copy1Data from Local SystemData Encrypted1Standard Cryptographic Protocol1Eavesdrop on Insecure Network CommunicationRemotely Track Device Without AuthorizationModify System Partition
Replication Through Removable MediaService ExecutionPort MonitorsAccessibility FeaturesDeobfuscate/Decode Files or Information1Network SniffingProcess Discovery1Remote ServicesData from Removable MediaExfiltration Over Other Network MediumUncommonly Used Port1Exploit SS7 to Redirect Phone Calls/SMSRemotely Wipe Data Without AuthorizationDevice Lockout
External Remote ServicesWindows Management InstrumentationAccessibility FeaturesPath InterceptionObfuscated Files or Information2Input CaptureSecurity Software Discovery2Windows Remote ManagementData from Network Shared DriveAutomated ExfiltrationRemote Access Tools1Exploit SS7 to Track Device LocationObtain Device Cloud BackupsDelete Device Data
Drive-by CompromiseScheduled TaskSystem FirmwareDLL Search Order HijackingObfuscated Files or InformationCredentials in FilesFile and Directory Discovery1Logon ScriptsInput CaptureData EncryptedRemote File Copy1SIM Card SwapPremium SMS Toll Fraud
Exploit Public-Facing ApplicationCommand-Line InterfaceShortcut ModificationFile System Permissions WeaknessMasqueradingAccount ManipulationSystem Information Discovery12Shared WebrootData StagedScheduled TransferStandard Cryptographic ProtocolManipulate Device CommunicationManipulate App Store Rankings or Ratings

Signature Overview

Click to jump to signature section


AV Detection:

barindex
Antivirus detection for sampleShow sources
Source: a1pR5h7AYV.dllAvira: detection malicious, Label: HEUR/AGEN.1015599
Multi AV Scanner detection for domain / URLShow sources
Source: http://s.jiancai008.com:88/xx.exeVirustotal: Detection: 7%Perma Link
Multi AV Scanner detection for submitted fileShow sources
Source: a1pR5h7AYV.dllVirustotal: Detection: 78%Perma Link
Source: a1pR5h7AYV.dllReversingLabs TitaniumCloud: Detection: 70%
Machine Learning detection for sampleShow sources
Source: a1pR5h7AYV.dllJoe Sandbox ML: detected

Spreading:

barindex
Contains functionality to enumerate / list files inside a directoryShow sources
Source: C:\Windows\System32\loaddll32.exeCode function: 0_2_73ED64B1 FindFirstFileExA,0_2_73ED64B1

Networking:

barindex
Detected TCP or UDP traffic on non-standard portsShow sources
Source: global trafficTCP traffic: 192.168.2.5:49766 -> 195.111.12.17:9999
Connects to IPs without corresponding DNS lookupsShow sources
Source: unknownTCP traffic detected without corresponding DNS query: 195.111.12.17
Source: unknownTCP traffic detected without corresponding DNS query: 195.111.12.17
Source: unknownTCP traffic detected without corresponding DNS query: 195.111.12.17
Contains functionality to download additional files from the internetShow sources
Source: C:\Windows\System32\loaddll32.exeCode function: 0_2_73ED1120 InternetOpenA,InternetOpenUrlA,InternetReadFile,InternetCloseHandle,InternetCloseHandle,0_2_73ED1120
Urls found in memory or binary dataShow sources
Source: loaddll32.exe, a1pR5h7AYV.dllString found in binary or memory: http://s.jiancai008.com:88/xx.exe
Source: loaddll32.exe, 00000000.00000002.2164046413.0000000073EDE000.00000002.00020000.sdmp, a1pR5h7AYV.dllString found in binary or memory: http://s.jiancai008.com:88/xx.exe9999195.111.12.17cmd.exeRookIE/1.0wb

System Summary:

barindex
Detected potential crypto functionShow sources
Source: C:\Windows\System32\loaddll32.exeCode function: 0_2_73EDC67B0_2_73EDC67B
Found potential string decryption / allocating functionsShow sources
Source: C:\Windows\System32\loaddll32.exeCode function: String function: 73ED1BB0 appears 31 times
Classification labelShow sources
Source: classification engineClassification label: mal72.troj.winDLL@4/0@0/1
Creates mutexesShow sources
Source: C:\Windows\System32\conhost.exeMutant created: \Sessions\1\BaseNamedObjects\Local\SM0:4868:120:WilError_01
PE file has an executable .text section and no other executable sectionShow sources
Source: a1pR5h7AYV.dllStatic PE information: Section: .text IMAGE_SCN_MEM_EXECUTE, IMAGE_SCN_CNT_CODE, IMAGE_SCN_MEM_READ
Reads software policiesShow sources
Source: C:\Windows\System32\loaddll32.exeKey opened: HKEY_CURRENT_USER\Software\Policies\Microsoft\Windows\Safer\CodeIdentifiersJump to behavior
Sample is known by AntivirusShow sources
Source: a1pR5h7AYV.dllVirustotal: Detection: 78%
Source: a1pR5h7AYV.dllReversingLabs TitaniumCloud: Detection: 70%
Spawns processesShow sources
Source: unknownProcess created: C:\Windows\System32\loaddll32.exe loaddll32.exe 'C:\Users\user\Desktop\a1pR5h7AYV.dll'
Source: unknownProcess created: C:\Windows\SysWOW64\cmd.exe cmd.exe
Source: unknownProcess created: C:\Windows\System32\conhost.exe C:\Windows\system32\conhost.exe 0xffffffff -ForceV1
Source: C:\Windows\System32\loaddll32.exeProcess created: C:\Windows\SysWOW64\cmd.exe cmd.exeJump to behavior
PE file contains a mix of data directories often seen in goodwareShow sources
Source: a1pR5h7AYV.dllStatic PE information: data directory type: IMAGE_DIRECTORY_ENTRY_IMPORT
Source: a1pR5h7AYV.dllStatic PE information: data directory type: IMAGE_DIRECTORY_ENTRY_RESOURCE
Source: a1pR5h7AYV.dllStatic PE information: data directory type: IMAGE_DIRECTORY_ENTRY_BASERELOC
Source: a1pR5h7AYV.dllStatic PE information: data directory type: IMAGE_DIRECTORY_ENTRY_DEBUG
Source: a1pR5h7AYV.dllStatic PE information: data directory type: IMAGE_DIRECTORY_ENTRY_LOAD_CONFIG
Source: a1pR5h7AYV.dllStatic PE information: data directory type: IMAGE_DIRECTORY_ENTRY_IAT
Contains modern PE file flags such as dynamic base (ASLR) or NXShow sources
Source: a1pR5h7AYV.dllStatic PE information: DYNAMIC_BASE, NX_COMPAT
PE file contains a debug data directoryShow sources
Source: a1pR5h7AYV.dllStatic PE information: data directory type: IMAGE_DIRECTORY_ENTRY_DEBUG
Binary contains paths to debug symbolsShow sources
Source: Binary string: \Visual Studio 2017\Projects\jxk\Release\jxk.pdb source: loaddll32.exe, 00000000.00000002.2164046413.0000000073EDE000.00000002.00020000.sdmp, a1pR5h7AYV.dll
PE file contains a valid data directory to section mappingShow sources
Source: a1pR5h7AYV.dllStatic PE information: Data directory: IMAGE_DIRECTORY_ENTRY_IMPORT is in: .rdata
Source: a1pR5h7AYV.dllStatic PE information: Data directory: IMAGE_DIRECTORY_ENTRY_RESOURCE is in: .rsrc
Source: a1pR5h7AYV.dllStatic PE information: Data directory: IMAGE_DIRECTORY_ENTRY_BASERELOC is in: .reloc
Source: a1pR5h7AYV.dllStatic PE information: Data directory: IMAGE_DIRECTORY_ENTRY_LOAD_CONFIG is in: .rdata
Source: a1pR5h7AYV.dllStatic PE information: Data directory: IMAGE_DIRECTORY_ENTRY_IAT is in: .rdata

Data Obfuscation:

barindex
Uses code obfuscation techniques (call, push, ret)Show sources
Source: C:\Windows\System32\loaddll32.exeCode function: 0_2_73ED1BF6 push ecx; ret 0_2_73ED1C09

Malware Analysis System Evasion:

barindex
Program does not show much activity (idle)Show sources
Source: all processesThread injection, dropped files, key value created, disk infection and DNS query: no activity detected
Contains functionality to enumerate / list files inside a directoryShow sources
Source: C:\Windows\System32\loaddll32.exeCode function: 0_2_73ED64B1 FindFirstFileExA,0_2_73ED64B1

Anti Debugging:

barindex
Contains functionality to check if a debugger is running (IsDebuggerPresent)Show sources
Source: C:\Windows\System32\loaddll32.exeCode function: 0_2_73ED1A2A IsProcessorFeaturePresent,IsDebuggerPresent,SetUnhandledExceptionFilter,UnhandledExceptionFilter,0_2_73ED1A2A
Contains functionality to read the PEBShow sources
Source: C:\Windows\System32\loaddll32.exeCode function: 0_2_73ED350C mov eax, dword ptr fs:[00000030h]0_2_73ED350C
Contains functionality which may be used to detect a debugger (GetProcessHeap)Show sources
Source: C:\Windows\System32\loaddll32.exeCode function: 0_2_73ED7637 GetProcessHeap,0_2_73ED7637
Program does not show much activity (idle)Show sources
Source: all processesThread injection, dropped files, key value created, disk infection and DNS query: no activity detected
Contains functionality to register its own exception handlerShow sources
Source: C:\Windows\System32\loaddll32.exeCode function: 0_2_73ED1A2A IsProcessorFeaturePresent,IsDebuggerPresent,SetUnhandledExceptionFilter,UnhandledExceptionFilter,0_2_73ED1A2A
Source: C:\Windows\System32\loaddll32.exeCode function: 0_2_73ED1531 SetUnhandledExceptionFilter,UnhandledExceptionFilter,GetCurrentProcess,TerminateProcess,0_2_73ED1531
Source: C:\Windows\System32\loaddll32.exeCode function: 0_2_73ED40BE IsDebuggerPresent,SetUnhandledExceptionFilter,UnhandledExceptionFilter,0_2_73ED40BE

HIPS / PFW / Operating System Protection Evasion:

barindex
Creates a process in suspended mode (likely to inject code)Show sources
Source: C:\Windows\System32\loaddll32.exeProcess created: C:\Windows\SysWOW64\cmd.exe cmd.exeJump to behavior
May try to detect the Windows Explorer process (often used for injection)Show sources
Source: loaddll32.exe, 00000000.00000002.2163954096.0000000001770000.00000002.00000001.sdmpBinary or memory string: Program Manager
Source: loaddll32.exe, 00000000.00000002.2163954096.0000000001770000.00000002.00000001.sdmpBinary or memory string: Shell_TrayWnd
Source: loaddll32.exe, 00000000.00000002.2163954096.0000000001770000.00000002.00000001.sdmpBinary or memory string: Progman
Source: loaddll32.exe, 00000000.00000002.2163954096.0000000001770000.00000002.00000001.sdmpBinary or memory string: Progmanlock

Language, Device and Operating System Detection:

barindex
Contains functionality to query CPU information (cpuid)Show sources
Source: C:\Windows\System32\loaddll32.exeCode function: 0_2_73ED1C0B cpuid 0_2_73ED1C0B
Contains functionality to query local / system timeShow sources
Source: C:\Windows\System32\loaddll32.exeCode function: 0_2_73ED1654 GetSystemTimeAsFileTime,GetCurrentThreadId,GetCurrentProcessId,QueryPerformanceCounter,0_2_73ED1654

Remote Access Functionality:

barindex
Contains functionality to start reverse TCP shell (cmd.exe)Show sources
Source: C:\Windows\System32\loaddll32.exeCode function: 0_2_73ED1030 WSAStartup,WSASocketA,htons,inet_addr,WSAConnect,CreateProcessA, string: cmd.exe0_2_73ED1030

Malware Configuration

No configs have been found

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

Simulations

Behavior and APIs

No simulations

Antivirus, Machine Learning and Genetic Malware Detection

Initial Sample

SourceDetectionScannerLabelLink
a1pR5h7AYV.dll79%VirustotalBrowse
a1pR5h7AYV.dll71%ReversingLabs TitaniumCloud FileReputationWin32.Trojan.Ursu
a1pR5h7AYV.dll100%AviraHEUR/AGEN.1015599
a1pR5h7AYV.dll100%Joe Sandbox ML

Dropped Files

No Antivirus matches

Unpacked PE Files

SourceDetectionScannerLabelLinkDownload
0.2.loaddll32.exe.73ed0000.0.unpack100%AviraHEUR/AGEN.1015599Download File

Domains

No Antivirus matches

URLs

SourceDetectionScannerLabelLink
http://s.jiancai008.com:88/xx.exe7%VirustotalBrowse
http://s.jiancai008.com:88/xx.exe0%Avira URL Cloudsafe
http://s.jiancai008.com:88/xx.exe9999195.111.12.17cmd.exeRookIE/1.0wb0%Avira URL Cloudsafe

Yara Overview

Initial Sample

No yara matches

PCAP (Network Traffic)

No yara matches

Dropped Files

No yara matches

Memory Dumps

No yara matches

Unpacked PEs

No yara matches

Sigma Overview

No Sigma rule has matched

Joe Sandbox View / Context

IPs

No context

Domains

No context

ASN

MatchAssociated Sample Name / URLSHA 256DetectionLinkContext
HBONE-ASHUNGARNETHUdWryQQ81XkGet hashmaliciousBrowse
  • 193.7.113.5
9XUMj7v4Xy.exeGet hashmaliciousBrowse
  • 192.160.172.6
7Messag.exeGet hashmaliciousBrowse
  • 193.225.54.247
5FedEx_ID_00000857186.doc.wsfGet hashmaliciousBrowse
  • 195.111.42.214

JA3 Fingerprints

No context

Dropped Files

No context

Screenshots

Thumbnails

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