Analysis

  • max time kernel
    148s
  • max time network
    157s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240226-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
  • submitted
    02/05/2024, 05:51

General

  • Target
    fb59f12f84d6bd8f5c7e6a77fe576528d6b4aec4f02eca6faef1ea33debf4563.exe
  • Size 409KB
  • Sample240502-gke2vacf62
  • SHA256 fb59f12f84d6bd8f5c7e6a77fe576528d6b4aec4f02eca6faef1ea33debf4563
  • MD5 SHA1 SHA512 SSDEEP

Malware Config

Extracted

Family
  • stealc

C2
  • http://185.172.128.150

Attributes
  • url_path

    /c698e1bc8a2f5e6d.php

Signatures

  • Detect ZGRat V1 3 IoCs
  • SectopRAT

    SectopRAT is a remote access trojan first seen in November 2019.

  • SectopRAT payload 1 IoCs
  • Stealc

    Stealc is an infostealer written in C++.

  • ZGRat

    ZGRat is remote access trojan written in C#.

  • Detect binaries embedding considerable number of MFA browser extension IDs. 3 IoCs
  • Detect binaries embedding considerable number of cryptocurrency wallet browser extension IDs. 3 IoCs
  • Detects binaries (Windows and macOS) referencing many web browsers. Observed in information stealers. 3 IoCs
  • Detects encrypted or obfuscated .NET executables 1 IoCs
  • Downloads MZ/PE file
  • Checks computer location settings 2 TTPs 2 IoCs

    Looks up country code configured in the registry, likely geofence.

  • Executes dropped EXE 3 IoCs
  • Loads dropped DLL 3 IoCs
  • Reads data files stored by FTP clients 2 TTPs

    Tries to access configuration files associated with programs like FileZilla.

  • Reads user/profile data of web browsers 2 TTPs

    Infostealers often target stored browser data, which can include saved credentials etc.

  • Accesses cryptocurrency files/wallets, possible credential harvesting 2 TTPs
  • Checks installed software on the system 1 TTPs

    Looks up Uninstall key entries in the registry to enumerate software on the system.

  • Suspicious use of SetThreadContext 2 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s).

  • Program crash 2 IoCs
  • Checks SCSI registry key(s) 3 TTPs 3 IoCs

    SCSI information is often read in order to detect sandboxing environments.

  • Checks processor information in registry 2 TTPs 2 IoCs

    Processor information is often read in order to detect sandboxing environments.

  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious behavior: MapViewOfSection 3 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of FindShellTrayWindow 7 IoCs
  • Suspicious use of SendNotifyMessage 7 IoCs
  • Suspicious use of SetWindowsHookEx 3 IoCs
  • Suspicious use of WriteProcessMemory 20 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\fb59f12f84d6bd8f5c7e6a77fe576528d6b4aec4f02eca6faef1ea33debf4563.exe
    "C:\Users\Admin\AppData\Local\Temp\fb59f12f84d6bd8f5c7e6a77fe576528d6b4aec4f02eca6faef1ea33debf4563.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of WriteProcessMemory
    PID:3604
    • C:\Users\Admin\AppData\Local\Temp\u2s4.0.exe
      "C:\Users\Admin\AppData\Local\Temp\u2s4.0.exe"
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Checks processor information in registry
      • Suspicious behavior: EnumeratesProcesses
      PID:2288
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 2288 -s 2328
        3⤵
        • Program crash
        PID:4316
    • C:\Users\Admin\AppData\Local\Temp\u2s4.2\run.exe
      "C:\Users\Admin\AppData\Local\Temp\u2s4.2\run.exe"
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Suspicious use of SetThreadContext
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious behavior: MapViewOfSection
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:4948
      • C:\Windows\SysWOW64\cmd.exe
        C:\Windows\SysWOW64\cmd.exe
        3⤵
        • Suspicious use of SetThreadContext
        • Suspicious behavior: MapViewOfSection
        • Suspicious use of WriteProcessMemory
        PID:4672
        • C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe
          C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe
          4⤵
          • Suspicious use of AdjustPrivilegeToken
          • Suspicious use of SetWindowsHookEx
          PID:2804
    • C:\Users\Admin\AppData\Local\Temp\u2s4.3.exe
      "C:\Users\Admin\AppData\Local\Temp\u2s4.3.exe"
      2⤵
      • Checks computer location settings
      • Executes dropped EXE
      • Checks SCSI registry key(s)
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of SendNotifyMessage
      • Suspicious use of WriteProcessMemory
      PID:3908
      • C:\Users\Admin\AppData\Local\Temp\iolo\dm\SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe
        "C:\Users\Admin\AppData\Local\Temp\iolo\dm\SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe" /eieci=11A12794-499E-4FA0-A281-A9A9AA8B2685 /eipi=5488CB36-BE62-4606-B07B-2EE938868BD1
        3⤵
        • Suspicious use of AdjustPrivilegeToken
        PID:3988
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 3604 -s 1188
      2⤵
      • Program crash
      PID:2744
  • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
    "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=network.mojom.NetworkService --lang=en-US --service-sandbox-type=none --no-appcompat-clear --mojo-platform-channel-handle=3248 --field-trial-handle=2304,i,6987730730348465820,3913273227385401271,262144 --variations-seed-version /prefetch:3
    1⤵
      PID:3748
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -pss -s 464 -p 3604 -ip 3604
      1⤵
        PID:1128
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -pss -s 552 -p 2288 -ip 2288
        1⤵
          PID:4312
        • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
          "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --no-appcompat-clear --mojo-platform-channel-handle=3996 --field-trial-handle=2304,i,6987730730348465820,3913273227385401271,262144 --variations-seed-version /prefetch:8
          1⤵
            PID:4064

          Network

                MITRE ATT&CK Enterprise v15

                Replay Monitor

                Loading Replay Monitor...

                Downloads

                Are.docx

                • Path C:\ProgramData\Are.docx
                • Size 11KB
                • SHA256 5abf8e3d1f78de7b09d7f6fb87f9e80e60caacf13ef3c1289665653dacd7c454
                • MD5 SHA1 SHA512 SSDEEP

                mozglue.dll

                • Path C:\ProgramData\mozglue.dll
                • Size 593KB
                • SHA256 ba06a6ee0b15f5be5c4e67782eec8b521e36c107a329093ec400fe0404eb196a
                • MD5 SHA1 SHA512 SSDEEP

                nss3.dll

                • Path C:\ProgramData\nss3.dll
                • Size 2.0MB
                • SHA256 ac5c92fe6c51cfa742e475215b83b3e11a4379820043263bf50d4068686c6fa5
                • MD5 SHA1 SHA512 SSDEEP

                SCT Auditing Pending Reports

                • Path C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data\Default\Network\SCT Auditing Pending Reports
                • Size 2B
                • SHA256 4f53cda18c2baa0c0354bb5f9a3ecbe5ed12ab4d8e11ba873c2f11161202b945
                • MD5 SHA1 SHA512

                Sdch Dictionaries

                • Path C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data\Default\Network\Sdch Dictionaries
                • Size 40B
                • SHA256 6028bd681dbf11a0a58dde8a0cd884115c04caa59d080ba51bde1b086ce0079d
                • MD5 SHA1 SHA512

                3437f0c6

                • Path C:\Users\Admin\AppData\Local\Temp\3437f0c6
                • Size 1.4MB
                • SHA256 d2e1d39d6b6bd1d5a4e636ec1bcb1458872408216832fbecafa603b2aef3ade8
                • MD5 SHA1 SHA512 SSDEEP

                ioloDMLog.txt

                • Path C:\Users\Admin\AppData\Local\Temp\iolo\dm\ioloDMLog.txt
                • Size 2KB
                • SHA256 7b179ca7259a1f09fc39af67d20188b42379f5afec01d5a20d73c8e8fa8f2310
                • MD5 SHA1 SHA512

                tmp19C9.tmp

                • Path C:\Users\Admin\AppData\Local\Temp\tmp19C9.tmp
                • Size 20KB
                • SHA256 4d3f3194cb1133437aa69bb880c8cbb55ddf06ff61a88ca6c3f1bbfbfd35d988
                • MD5 SHA1 SHA512 SSDEEP

                tmp1A1A.tmp

                • Path C:\Users\Admin\AppData\Local\Temp\tmp1A1A.tmp
                • Size 20KB
                • SHA256 0628922305d2478ba75a48efadf932d439616eaf1ff908be334793f7bde28107
                • MD5 SHA1 SHA512 SSDEEP

                u2s4.0.exe

                • Path C:\Users\Admin\AppData\Local\Temp\u2s4.0.exe
                • Size 263KB
                • SHA256 f6cfab64e70bb19c8523db5068f2a4c94af09f1eb73076e93cf57bd26c3f1f10
                • MD5 SHA1 SHA512 SSDEEP

                u2s4.1.zip

                • Path C:\Users\Admin\AppData\Local\Temp\u2s4.1.zip
                • Size 3.7MB
                • SHA256 a1dd547a63b256aa6a16871ed03f8b025226f7617e67b8817a08444df077b001
                • MD5 SHA1 SHA512 SSDEEP

                UIxMarketPlugin.dll

                • Path C:\Users\Admin\AppData\Local\Temp\u2s4.2\UIxMarketPlugin.dll
                • Size 1.6MB
                • SHA256 cbcea8f28d8916219d1e8b0a8ca2db17e338eb812431bc4ad0cb36c06fd67f15
                • MD5 SHA1 SHA512 SSDEEP

                bunch.dat

                • Path C:\Users\Admin\AppData\Local\Temp\u2s4.2\bunch.dat
                • Size 1.3MB
                • SHA256 9387488f9d338e211be2cb45109bf590a5070180bc0d4a703f70d3cb3c4e1742
                • MD5 SHA1 SHA512 SSDEEP

                relay.dll

                • Path C:\Users\Admin\AppData\Local\Temp\u2s4.2\relay.dll
                • Size 1.5MB
                • SHA256 7b2db9c88f60ed6dd24b1dec321a304564780fdb191a96ec35c051856128f1ed
                • MD5 SHA1 SHA512 SSDEEP

                run.exe

                • Path C:\Users\Admin\AppData\Local\Temp\u2s4.2\run.exe
                • Size 2.4MB
                • SHA256 a05b592a971fe5011554013bcfe9a4aaf9cfc633bdd1fe3a8197f213d557b8d3
                • MD5 SHA1 SHA512 SSDEEP

                whale.dbf

                • Path C:\Users\Admin\AppData\Local\Temp\u2s4.2\whale.dbf
                • Size 85KB
                • SHA256 b440170853bdb43b66497f701aee2901080326975140b095a1669cb9dee13422
                • MD5 SHA1 SHA512 SSDEEP

                u2s4.3.exe

                • Path C:\Users\Admin\AppData\Local\Temp\u2s4.3.exe
                • Size 4.6MB
                • SHA256 4f07e1095cc915b2d46eb149d1c3be14f3f4b4bd2742517265947fd23bdca5a7
                • MD5 SHA1 SHA512 SSDEEP

                memory/2288-74-0x0000000061E00000-0x0000000061EF3000-memory.dmp

                memory/2288-19-0x0000000000400000-0x0000000001A0D000-memory.dmp

                memory/2288-171-0x0000000000400000-0x0000000001A0D000-memory.dmp

                memory/2288-18-0x0000000000400000-0x0000000001A0D000-memory.dmp

                memory/2288-210-0x0000000000400000-0x0000000001A0D000-memory.dmp

                memory/2288-17-0x0000000000400000-0x0000000001A0D000-memory.dmp

                memory/2288-252-0x0000000000400000-0x0000000001A0D000-memory.dmp

                memory/2804-293-0x00000000058B0000-0x0000000005926000-memory.dmp

                memory/2804-307-0x0000000005DC0000-0x0000000005DDE000-memory.dmp

                memory/2804-330-0x0000000007F70000-0x0000000007F7A000-memory.dmp

                memory/2804-278-0x0000000005730000-0x00000000057C2000-memory.dmp

                memory/2804-276-0x0000000001100000-0x00000000011C6000-memory.dmp

                memory/2804-292-0x0000000005B30000-0x0000000005CF2000-memory.dmp

                memory/2804-279-0x0000000005DE0000-0x0000000006384000-memory.dmp

                memory/2804-294-0x0000000005850000-0x00000000058A0000-memory.dmp

                memory/2804-295-0x00000000057E0000-0x00000000057EA000-memory.dmp

                memory/2804-308-0x0000000006550000-0x00000000065B6000-memory.dmp

                memory/2804-269-0x0000000073D20000-0x0000000074F74000-memory.dmp

                memory/2804-302-0x00000000069C0000-0x0000000006EEC000-memory.dmp

                memory/3604-184-0x0000000001B40000-0x0000000001C40000-memory.dmp

                memory/3604-16-0x0000000000400000-0x0000000001A32000-memory.dmp

                memory/3604-3-0x0000000000400000-0x0000000000470000-memory.dmp

                memory/3604-2-0x00000000037B0000-0x000000000381D000-memory.dmp

                memory/3604-1-0x0000000001B40000-0x0000000001C40000-memory.dmp

                memory/3604-212-0x0000000000400000-0x0000000000470000-memory.dmp

                memory/3604-201-0x00000000037B0000-0x000000000381D000-memory.dmp

                memory/3604-183-0x0000000000400000-0x0000000001A32000-memory.dmp

                memory/3908-265-0x0000000000400000-0x00000000008AD000-memory.dmp

                memory/3908-264-0x0000000000400000-0x00000000008AD000-memory.dmp

                memory/3908-211-0x0000000000400000-0x00000000008AD000-memory.dmp

                memory/3988-282-0x000002EEE8860000-0x000002EEE888A000-memory.dmp

                memory/3988-298-0x000002EEED190000-0x000002EEED19E000-memory.dmp

                memory/3988-277-0x000002EEE8830000-0x000002EEE8854000-memory.dmp

                memory/3988-281-0x000002EEE8C40000-0x000002EEE8CF2000-memory.dmp

                memory/3988-283-0x000002EEE8CF0000-0x000002EEE8D6A000-memory.dmp

                memory/3988-284-0x000002EEE8D70000-0x000002EEE8DD2000-memory.dmp

                memory/3988-285-0x000002EEE8E50000-0x000002EEE8EC6000-memory.dmp

                memory/3988-286-0x000002EECE6A0000-0x000002EECE6AA000-memory.dmp

                memory/3988-290-0x000002EEE8ED0000-0x000002EEE91D0000-memory.dmp

                memory/3988-275-0x000002EECFEE0000-0x000002EECFEF4000-memory.dmp

                memory/3988-274-0x000002EED0000000-0x000002EED000C000-memory.dmp

                memory/3988-273-0x000002EECE650000-0x000002EECE660000-memory.dmp

                memory/3988-272-0x000002EEE89F0000-0x000002EEE8B00000-memory.dmp

                memory/3988-296-0x000002EEED880000-0x000002EEED888000-memory.dmp

                memory/3988-297-0x000002EEED1C0000-0x000002EEED1F8000-memory.dmp

                memory/3988-280-0x000002EEE8850000-0x000002EEE885A000-memory.dmp

                memory/3988-299-0x000002EEEE320000-0x000002EEEE32A000-memory.dmp

                memory/3988-300-0x000002EEEE330000-0x000002EEEE352000-memory.dmp

                memory/3988-301-0x000002EEEE880000-0x000002EEEEDA8000-memory.dmp

                memory/3988-267-0x000002EECA850000-0x000002EECE148000-memory.dmp

                memory/3988-306-0x000002EEEE0A0000-0x000002EEEE0AC000-memory.dmp

                memory/3988-305-0x000002EEEE0F0000-0x000002EEEE140000-memory.dmp

                memory/3988-328-0x000002EEEE170000-0x000002EEEE18E000-memory.dmp

                memory/3988-309-0x000002EEEE140000-0x000002EEEE162000-memory.dmp

                memory/4672-266-0x0000000073250000-0x00000000733CB000-memory.dmp

                memory/4672-191-0x00007FFC5D0F0000-0x00007FFC5D2E5000-memory.dmp

                memory/4948-134-0x0000000073250000-0x00000000733CB000-memory.dmp

                memory/4948-135-0x00007FFC5D0F0000-0x00007FFC5D2E5000-memory.dmp

                memory/4948-177-0x0000000073250000-0x00000000733CB000-memory.dmp