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Windows Analysis Report correction HAWB.exe

Overview

General Information

Sample Name:correction HAWB.exe
Analysis ID:502575
MD5:8a29580d47943a0f2c61ca552a63bc30
SHA1:e4cdec934b4bfc2e055216c03ac7056069100b05
SHA256:53c0cf2d25f350a579729af76c466b68b899586b620ffae8925fcb4d831dc2c8
Tags:exe
Infos:

Most interesting Screenshot:

Detection

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

Signatures

Found malware configuration
Potential malicious icon found
Yara detected GuLoader
Found potential dummy code loops (likely to delay analysis)
Machine Learning detection for sample
C2 URLs / IPs found in malware configuration
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
Program does not show much activity (idle)
Uses code obfuscation techniques (call, push, ret)
Abnormal high CPU Usage
Detected potential crypto function
Found potential string decryption / allocating functions

Classification

Process Tree

  • System is w10x64
  • correction HAWB.exe (PID: 4784 cmdline: 'C:\Users\user\Desktop\correction HAWB.exe' MD5: 8A29580D47943A0F2C61CA552A63BC30)
  • cleanup

Malware Configuration

Threatname: GuLoader

{"Payload URL": "https://drive.google.com/uc?export=d"}

Yara Overview

Memory Dumps

SourceRuleDescriptionAuthorStrings
00000000.00000002.758213767.0000000002110000.00000040.00000001.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: 00000000.00000002.758213767.0000000002110000.00000040.00000001.sdmpMalware Configuration Extractor: GuLoader {"Payload URL": "https://drive.google.com/uc?export=d"}
    Machine Learning detection for sampleShow sources
    Source: correction HAWB.exeJoe Sandbox ML: detected
    Source: correction HAWB.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=d

    System Summary:

    barindex
    Potential malicious icon foundShow sources
    Source: initial sampleIcon embedded in PE file: bad icon match: 20047c7c70f0e004
    Source: correction HAWB.exeStatic PE information: LOCAL_SYMS_STRIPPED, 32BIT_MACHINE, EXECUTABLE_IMAGE, LINE_NUMS_STRIPPED, RELOCS_STRIPPED
    Source: correction HAWB.exe, 00000000.00000002.758468268.0000000002890000.00000004.00000001.sdmpBinary or memory string: OriginalFilenameUnelega5.exeFE2X vs correction HAWB.exe
    Source: correction HAWB.exe, 00000000.00000000.230189845.000000000041C000.00000002.00020000.sdmpBinary or memory string: OriginalFilenameUnelega5.exe vs correction HAWB.exe
    Source: correction HAWB.exeBinary or memory string: OriginalFilenameUnelega5.exe vs correction HAWB.exe
    Source: correction HAWB.exeStatic PE information: Resource name: RT_ICON type: GLS_BINARY_LSB_FIRST
    Source: C:\Users\user\Desktop\correction HAWB.exeProcess Stats: CPU usage > 98%
    Source: C:\Users\user\Desktop\correction HAWB.exeCode function: 0_2_004022BB
    Source: C:\Users\user\Desktop\correction HAWB.exeCode function: 0_2_00403444
    Source: C:\Users\user\Desktop\correction HAWB.exeCode function: 0_2_0040322C
    Source: C:\Users\user\Desktop\correction HAWB.exeCode function: 0_2_004034DC
    Source: C:\Users\user\Desktop\correction HAWB.exeCode function: 0_2_004032B6
    Source: C:\Users\user\Desktop\correction HAWB.exeCode function: 0_2_0040333F
    Source: C:\Users\user\Desktop\correction HAWB.exeCode function: 0_2_004033CA
    Source: C:\Users\user\Desktop\correction HAWB.exeCode function: 0_2_004031AB
    Source: C:\Users\user\Desktop\correction HAWB.exeCode function: String function: 0040177E appears 94 times
    Source: correction HAWB.exeStatic PE information: Section: .text IMAGE_SCN_MEM_EXECUTE, IMAGE_SCN_CNT_CODE, IMAGE_SCN_MEM_READ
    Source: C:\Users\user\Desktop\correction HAWB.exeKey opened: HKEY_CURRENT_USER\Software\Policies\Microsoft\Windows\Safer\CodeIdentifiers
    Source: C:\Users\user\Desktop\correction HAWB.exeSection loaded: C:\Windows\SysWOW64\msvbvm60.dll
    Source: classification engineClassification label: mal76.rans.troj.evad.winEXE@1/0@0/0

    Data Obfuscation:

    barindex
    Yara detected GuLoaderShow sources
    Source: Yara matchFile source: 00000000.00000002.758213767.0000000002110000.00000040.00000001.sdmp, type: MEMORY
    Source: C:\Users\user\Desktop\correction HAWB.exeCode function: 0_2_00403C72 push eax; iretd
    Source: C:\Users\user\Desktop\correction HAWB.exeCode function: 0_2_0040440B pushad ; iretd
    Source: C:\Users\user\Desktop\correction HAWB.exeCode function: 0_2_00405ADE push esi; ret
    Source: C:\Users\user\Desktop\correction HAWB.exeCode function: 0_2_00406AE7 push ss; iretd
    Source: C:\Users\user\Desktop\correction HAWB.exeCode function: 0_2_0040695C push eax; ret
    Source: C:\Users\user\Desktop\correction HAWB.exeCode function: 0_2_00406F76 push 0000002Ch; iretd
    Source: C:\Users\user\Desktop\correction HAWB.exeCode function: 0_2_004057DC push ecx; ret
    Source: C:\Users\user\Desktop\correction HAWB.exeCode function: 0_2_00407BBE push eax; retf
    Source: initial sampleStatic PE information: section name: .text entropy: 6.82320580255
    Source: C:\Users\user\Desktop\correction HAWB.exeProcess information set: NOOPENFILEERRORBOX
    Source: C:\Users\user\Desktop\correction HAWB.exeProcess information set: NOOPENFILEERRORBOX
    Source: C:\Users\user\Desktop\correction HAWB.exeProcess information set: NOOPENFILEERRORBOX
    Source: C:\Users\user\Desktop\correction HAWB.exeProcess information set: NOOPENFILEERRORBOX
    Source: C:\Users\user\Desktop\correction HAWB.exeProcess information set: NOOPENFILEERRORBOX
    Source: C:\Users\user\Desktop\correction HAWB.exeProcess information set: NOOPENFILEERRORBOX
    Source: C:\Users\user\Desktop\correction HAWB.exeProcess information set: NOOPENFILEERRORBOX
    Source: C:\Users\user\Desktop\correction HAWB.exeProcess information set: NOOPENFILEERRORBOX
    Source: C:\Users\user\Desktop\correction HAWB.exeProcess information set: NOOPENFILEERRORBOX
    Source: C:\Users\user\Desktop\correction HAWB.exeProcess information set: NOOPENFILEERRORBOX
    Source: all processesThread injection, dropped files, key value created, disk infection and DNS query: no activity detected

    Anti Debugging:

    barindex
    Found potential dummy code loops (likely to delay analysis)Show sources
    Source: C:\Users\user\Desktop\correction HAWB.exeProcess Stats: CPU usage > 90% for more than 60s
    Source: C:\Users\user\Desktop\correction HAWB.exeCode function: 0_2_004022BB mov ebx, dword ptr fs:[00000030h]
    Source: C:\Users\user\Desktop\correction HAWB.exeCode function: 0_2_004031AB mov ebx, dword ptr fs:[00000030h]
    Source: all processesThread injection, dropped files, key value created, disk infection and DNS query: no activity detected
    Source: correction HAWB.exe, 00000000.00000002.757533942.0000000000C60000.00000002.00020000.sdmpBinary or memory string: Shell_TrayWnd
    Source: correction HAWB.exe, 00000000.00000002.757533942.0000000000C60000.00000002.00020000.sdmpBinary or memory string: Progman
    Source: correction HAWB.exe, 00000000.00000002.757533942.0000000000C60000.00000002.00020000.sdmpBinary or memory string: SProgram Managerl
    Source: correction HAWB.exe, 00000000.00000002.757533942.0000000000C60000.00000002.00020000.sdmpBinary or memory string: Shell_TrayWnd,
    Source: correction HAWB.exe, 00000000.00000002.757533942.0000000000C60000.00000002.00020000.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 Injection1Virtualization/Sandbox Evasion11OS Credential DumpingSecurity Software Discovery1Remote 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 ScriptsSoftware Packing1LSASS MemoryVirtualization/Sandbox Evasion11Remote 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)Process Injection1Security Account ManagerProcess 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)Deobfuscate/Decode Files or Information1NTDSSystem Information Discovery1Distributed Component Object ModelInput CaptureScheduled TransferProtocol ImpersonationSIM Card SwapCarrier Billing Fraud
    Cloud AccountsCronNetwork Logon ScriptNetwork Logon ScriptObfuscated Files or Information3LSA SecretsRemote System DiscoverySSHKeyloggingData Transfer Size LimitsFallback ChannelsManipulate Device CommunicationManipulate App Store Rankings or Ratings

    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.

    windows-stand

    Antivirus, Machine Learning and Genetic Malware Detection

    Initial Sample

    SourceDetectionScannerLabelLink
    correction HAWB.exe100%Joe Sandbox ML

    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:502575
    Start date:14.10.2021
    Start time:04:25:07
    Joe Sandbox Product:CloudBasic
    Overall analysis duration:0h 7m 9s
    Hypervisor based Inspection enabled:false
    Report type:light
    Sample file name:correction HAWB.exe
    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:32
    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:mal76.rans.troj.evad.winEXE@1/0@0/0
    EGA Information:Failed
    HDC Information:
    • Successful, ratio: 3.7% (good quality ratio 3%)
    • Quality average: 37.6%
    • Quality standard deviation: 20.2%
    HCA Information:Failed
    Cookbook Comments:
    • Adjust boot time
    • Enable AMSI
    • Found application associated with file extension: .exe
    • Override analysis time to 240s for sample files taking high CPU consumption
    Warnings:
    Show All
    • Exclude process from analysis (whitelisted): MpCmdRun.exe, audiodg.exe, BackgroundTransferHost.exe, WMIADAP.exe, backgroundTaskHost.exe, SgrmBroker.exe, conhost.exe, svchost.exe, wuapihost.exe
    • Excluded IPs from analysis (whitelisted): 204.79.197.200, 13.107.21.200, 20.50.102.62, 23.203.141.148, 95.100.216.89, 20.82.210.154, 40.112.88.60, 2.20.178.24, 2.20.178.33, 20.82.209.183, 20.54.110.249
    • Excluded domains from analysis (whitelisted): store-images.s-microsoft.com-c.edgekey.net, iris-de-prod-azsc-neu-b.northeurope.cloudapp.azure.com, fs-wildcard.microsoft.com.edgekey.net, fs-wildcard.microsoft.com.edgekey.net.globalredir.akadns.net, a1449.dscg2.akamai.net, arc.msn.com, e12564.dspb.akamaiedge.net, consumer-displaycatalogrp-aks2aks-europe.md.mp.microsoft.com.akadns.net, www-bing-com.dual-a-0001.a-msedge.net, arc.trafficmanager.net, displaycatalog.mp.microsoft.com, img-prod-cms-rt-microsoft-com.akamaized.net, prod.fs.microsoft.com.akadns.net, www.bing.com, iris-de-prod-azsc-neu.northeurope.cloudapp.azure.com, fs.microsoft.com, dual-a-0001.a-msedge.net, displaycatalog-rp-europe.md.mp.microsoft.com.akadns.net, ris-prod.trafficmanager.net, neu-displaycatalogrp.frontdoor.bigcatalog.commerce.microsoft.com, asf-ris-prod-neu.northeurope.cloudapp.azure.com, e1723.g.akamaiedge.net, iris-de-prod-azsc-uks.uksouth.cloudapp.azure.com, ris.api.iris.microsoft.com, a-0001.a-afdentry.net.trafficmanager.net, store-images.s-microsoft.com, displaycatalog-rp.md.mp.microsoft.com.akadns.net
    • Not all processes where analyzed, report is missing behavior information

    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:PE32 executable (GUI) Intel 80386, for MS Windows
    Entropy (8bit):6.349869263832848
    TrID:
    • Win32 Executable (generic) a (10002005/4) 99.15%
    • Win32 Executable Microsoft Visual Basic 6 (82127/2) 0.81%
    • Generic Win/DOS Executable (2004/3) 0.02%
    • DOS Executable Generic (2002/1) 0.02%
    • Autodesk FLIC Image File (extensions: flc, fli, cel) (7/3) 0.00%
    File name:correction HAWB.exe
    File size:135168
    MD5:8a29580d47943a0f2c61ca552a63bc30
    SHA1:e4cdec934b4bfc2e055216c03ac7056069100b05
    SHA256:53c0cf2d25f350a579729af76c466b68b899586b620ffae8925fcb4d831dc2c8
    SHA512:358c751d102753fd81e1d527a438ca7aed36dec3d605e870a4bf3f3232027ae1d66db2c8c70771c6e781f3a52317ddec0e483b4dce501c5ef30cc1189f217177
    SSDEEP:1536:VTbVTmIJnm6UC/HuomaUi0gAC6/lHzDc7uWWDNvtKyUrWBeSVpynmKTGYFZnymht:V/VTVnbHJ/Tkl/eS3ybzH
    File Content Preview:MZ......................@...............................................!..L.!This program cannot be run in DOS mode....$........#...B...B...B..L^...B...`...B...d...B..Rich.B..........PE..L......Y.....................`......h.............@.............B..

    File Icon

    Icon Hash:20047c7c70f0e004

    Static PE Info

    General

    Entrypoint:0x401868
    Entrypoint Section:.text
    Digitally signed:false
    Imagebase:0x400000
    Subsystem:windows gui
    Image File Characteristics:LOCAL_SYMS_STRIPPED, 32BIT_MACHINE, EXECUTABLE_IMAGE, LINE_NUMS_STRIPPED, RELOCS_STRIPPED
    DLL Characteristics:
    Time Stamp:0x59B6E088 [Mon Sep 11 19:14:16 2017 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:c727a98e677fb7bd25bb06d2a2d956f1

    Entrypoint Preview

    Instruction
    push 00410420h
    call 00007F054CD2BED5h
    add byte ptr [eax], al
    add byte ptr [eax], al
    add byte ptr [eax], al
    xor byte ptr [eax], al
    add byte ptr [eax], al
    cmp byte ptr [eax], al
    add byte ptr [eax], al
    add byte ptr [eax], al
    add byte ptr [eax], al
    jecxz 00007F054CD2BE87h
    out dx, eax
    pushad

    Data Directories

    NameVirtual AddressVirtual Size Is in Section
    IMAGE_DIRECTORY_ENTRY_EXPORT0x00x0
    IMAGE_DIRECTORY_ENTRY_IMPORT0x1a9a40x28.text
    IMAGE_DIRECTORY_ENTRY_RESOURCE0x1c0000x456a.rsrc
    IMAGE_DIRECTORY_ENTRY_EXCEPTION0x00x0
    IMAGE_DIRECTORY_ENTRY_SECURITY0x00x0
    IMAGE_DIRECTORY_ENTRY_BASERELOC0x00x0
    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_IMPORT0x2280x20
    IMAGE_DIRECTORY_ENTRY_IAT0x10000x154.text
    IMAGE_DIRECTORY_ENTRY_DELAY_IMPORT0x00x0
    IMAGE_DIRECTORY_ENTRY_COM_DESCRIPTOR0x00x0
    IMAGE_DIRECTORY_ENTRY_RESERVED0x00x0

    Sections

    NameVirtual AddressVirtual SizeRaw SizeXored PEZLIB ComplexityFile TypeEntropyCharacteristics
    .text0x10000x19ee00x1a000False0.56938288762data6.82320580255IMAGE_SCN_MEM_EXECUTE, IMAGE_SCN_CNT_CODE, IMAGE_SCN_MEM_READ
    .data0x1b0000xaf00x1000False0.00634765625data0.0IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_MEM_WRITE, IMAGE_SCN_MEM_READ
    .rsrc0x1c0000x456a0x5000False0.396240234375data4.60844428158IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_MEM_READ

    Resources

    NameRVASizeTypeLanguageCountry
    DATA0x1ca7c0x3aeeMS Windows icon resource - 3 icons, 48x48, 32 bits/pixel, 32x32, 32 bits/pixelEnglishUnited States
    RT_ICON0x1c94c0x130data
    RT_ICON0x1c6640x2e8data
    RT_ICON0x1c53c0x128GLS_BINARY_LSB_FIRST
    RT_GROUP_ICON0x1c50c0x30data
    RT_VERSION0x1c1a00x36cdataEnglishUnited States

    Imports

    DLLImport
    MSVBVM60.DLL_CIcos, _adj_fptan, __vbaVarMove, __vbaFreeVar, __vbaStrVarMove, __vbaFreeVarList, _adj_fdiv_m64, _adj_fprem1, __vbaSetSystemError, __vbaHresultCheckObj, __vbaLenBstrB, _adj_fdiv_m32, __vbaAryDestruct, __vbaOnError, __vbaObjSet, _adj_fdiv_m16i, __vbaObjSetAddref, _adj_fdivr_m16i, __vbaFpR8, _CIsin, __vbaChkstk, EVENT_SINK_AddRef, __vbaGenerateBoundsError, __vbaStrCmp, __vbaAryConstruct2, __vbaObjVar, DllFunctionCall, _adj_fpatan, __vbaRedim, EVENT_SINK_Release, _CIsqrt, EVENT_SINK_QueryInterface, __vbaExceptHandler, _adj_fprem, _adj_fdivr_m64, __vbaI2Str, __vbaFPException, _CIlog, __vbaNew2, _adj_fdiv_m32i, _adj_fdivr_m32i, __vbaStrCopy, __vbaI4Str, __vbaDerefAry1, _adj_fdivr_m32, _adj_fdiv_r, __vbaStrToAnsi, __vbaVarDup, __vbaFpI4, __vbaLateMemCallLd, _CIatan, __vbaStrMove, _allmul, __vbaLateIdSt, _CItan, _CIexp, __vbaFreeObj, __vbaFreeStr

    Version Infos

    DescriptionData
    Translation0x0409 0x04b0
    LegalCopyrightRealNetworks, Inc.
    InternalNameUnelega5
    FileVersion66.00
    CompanyNameRealNetworks, Inc.
    LegalTrademarksRealNetworks, Inc.
    CommentsRealNetworks, Inc.
    ProductNameRealNetworks, Inc.
    ProductVersion66.00
    FileDescriptionRealNetworks, Inc.
    OriginalFilenameUnelega5.exe

    Possible Origin

    Language of compilation systemCountry where language is spokenMap
    EnglishUnited States

    Network Behavior

    No network behavior found

    Code Manipulations

    Statistics

    System Behavior

    General

    Start time:04:25:59
    Start date:14/10/2021
    Path:C:\Users\user\Desktop\correction HAWB.exe
    Wow64 process (32bit):true
    Commandline:'C:\Users\user\Desktop\correction HAWB.exe'
    Imagebase:0x400000
    File size:135168 bytes
    MD5 hash:8A29580D47943A0F2C61CA552A63BC30
    Has elevated privileges:true
    Has administrator privileges:true
    Programmed in:Visual Basic
    Yara matches:
    • Rule: JoeSecurity_GuLoader_2, Description: Yara detected GuLoader, Source: 00000000.00000002.758213767.0000000002110000.00000040.00000001.sdmp, Author: Joe Security
    Reputation:low

    Disassembly

    Code Analysis

    Reset < >