Analysis

  • max time kernel
    120s
  • max time network
    174s
  • platform
    windows7_x64
  • resource
    win7-20240220-en
  • resource tags

    arch:x64arch:x86image:win7-20240220-enlocale:en-usos:windows7-x64system
  • submitted
    07/05/2024, 22:28

General

  • Target

    1a078c4545a861c6f42aa9920d0265ca0d63dd000a6f4251c30419604b7e867d.exe

  • Size

    1.9MB

  • MD5

    541f79ee2c7c41e06f7b72a487f15ecc

  • SHA1

    c56b4e10d9f2e8594b3ef5dabbdf657258cdaee2

  • SHA256

    1a078c4545a861c6f42aa9920d0265ca0d63dd000a6f4251c30419604b7e867d

  • SHA512

    d773db82942dc6e0e7051a4b1c4724fc958ef671f5001927c5066dd19e50d5a55976e919ab91879a8f64ccf7d69ec789e75d64a87a7ee819b1a8c4d2099a3775

  • SSDEEP

    3072:sOnyTGV1tijmRBE9ZOrBdcp6zXybbEcmbnIqHt1UX9I3S+vGIVXKxV+y09uSNTus:sOyK3ESrddcTbFmdpSgzNK+FcS3VT

Malware Config

Extracted

Family

stealc

C2

http://45.11.92.124

Attributes
  • url_path

    /982c183d8a9835c6.php

Signatures

  • Stealc

    Stealc is an infostealer written in C++.

  • Downloads MZ/PE file
  • Loads dropped DLL 2 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.

  • Legitimate hosting services abused for malware hosting/C2 1 TTPs 2 IoCs
  • Checks processor information in registry 2 TTPs 2 IoCs

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

  • Modifies system certificate store 2 TTPs 3 IoCs
  • Suspicious behavior: EnumeratesProcesses 2 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\1a078c4545a861c6f42aa9920d0265ca0d63dd000a6f4251c30419604b7e867d.exe
    "C:\Users\Admin\AppData\Local\Temp\1a078c4545a861c6f42aa9920d0265ca0d63dd000a6f4251c30419604b7e867d.exe"
    1⤵
    • Loads dropped DLL
    • Checks processor information in registry
    • Modifies system certificate store
    • Suspicious behavior: EnumeratesProcesses
    PID:3036

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        • C:\ProgramData\OutCompress.vsdm

          Filesize

          186KB

          MD5

          8a15f8d1414f6681ba97cce42e6c9d5d

          SHA1

          631245e9b602f72ab1f1a4c4aab589f7db99e434

          SHA256

          431aea7481981913bdb2562ecb7cdd2df72891cc50f2aa6ab5cac141fd64c600

          SHA512

          3f3def9c595a6a2e24cfe1c077518a99ff010aa1b04c46176ec84fdef7b0fba7d811d7666451b6a29bf4ddd1fbe98147ef3c0d7bafe17ec2b739ad297f990fb0

        • C:\ProgramData\OutConvert.vsx

          Filesize

          159KB

          MD5

          bab7ad0d4d563e8359fedb03ffa8893d

          SHA1

          780383900deaaec886d1a610d0db667b7ec958a1

          SHA256

          e5dcbaeee04cc32a0484bad6ed06ee3f7f7e1c1a5b198e218c108c3c89c67b22

          SHA512

          0d16d4e395fa3a59fd59060cc2763addbe8272718cdd4d6a0682564ab1b5f6bde28634c3e69ae8d9d92e69a27eac5efa6e048f33671359948a31abab756c6466

        • C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\94308059B57B3142E455B38A6EB92015

          Filesize

          68KB

          MD5

          29f65ba8e88c063813cc50a4ea544e93

          SHA1

          05a7040d5c127e68c25d81cc51271ffb8bef3568

          SHA256

          1ed81fa8dfb6999a9fedc6e779138ffd99568992e22d300acd181a6d2c8de184

          SHA512

          e29b2e92c496245bed3372578074407e8ef8882906ce10c35b3c8deebfefe01b5fd7f3030acaa693e175f4b7aca6cd7d8d10ae1c731b09c5fa19035e005de3aa

        • C:\Users\Admin\AppData\Local\Temp\Tar7833.tmp

          Filesize

          177KB

          MD5

          435a9ac180383f9fa094131b173a2f7b

          SHA1

          76944ea657a9db94f9a4bef38f88c46ed4166983

          SHA256

          67dc37ed50b8e63272b49a254a6039ee225974f1d767bb83eb1fd80e759a7c34

          SHA512

          1a6b277611959720a9c71114957620517ad94541302f164eb872bd322292a952409bafb8bc2ac793b16ad5f25d83f8594ccff2b7834e3c2b2b941e6fc84c009a

        • \ProgramData\mozglue.dll

          Filesize

          593KB

          MD5

          c8fd9be83bc728cc04beffafc2907fe9

          SHA1

          95ab9f701e0024cedfbd312bcfe4e726744c4f2e

          SHA256

          ba06a6ee0b15f5be5c4e67782eec8b521e36c107a329093ec400fe0404eb196a

          SHA512

          fbb446f4a27ef510e616caad52945d6c9cc1fd063812c41947e579ec2b54df57c6dc46237ded80fca5847f38cbe1747a6c66a13e2c8c19c664a72be35eb8b040

        • \ProgramData\nss3.dll

          Filesize

          2.0MB

          MD5

          1cc453cdf74f31e4d913ff9c10acdde2

          SHA1

          6e85eae544d6e965f15fa5c39700fa7202f3aafe

          SHA256

          ac5c92fe6c51cfa742e475215b83b3e11a4379820043263bf50d4068686c6fa5

          SHA512

          dd9ff4e06b00dc831439bab11c10e9b2ae864ea6e780d3835ea7468818f35439f352ef137da111efcdf2bb6465f6ca486719451bf6cf32c6a4420a56b1d64571

        • memory/3036-51-0x0000000003E50000-0x000000000408B000-memory.dmp

          Filesize

          2.2MB

        • memory/3036-94-0x0000000003E50000-0x000000000408B000-memory.dmp

          Filesize

          2.2MB

        • memory/3036-56-0x0000000061E00000-0x0000000061EF3000-memory.dmp

          Filesize

          972KB

        • memory/3036-55-0x0000000000E62000-0x0000000000E63000-memory.dmp

          Filesize

          4KB

        • memory/3036-54-0x0000000003E50000-0x000000000408B000-memory.dmp

          Filesize

          2.2MB

        • memory/3036-52-0x0000000003E50000-0x000000000408B000-memory.dmp

          Filesize

          2.2MB

        • memory/3036-133-0x0000000003E50000-0x000000000408B000-memory.dmp

          Filesize

          2.2MB