Analysis

  • max time kernel
    43s
  • max time network
    116s
  • platform
    windows7_x64
  • resource
    win7-20220812-en
  • resource tags

    arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
  • submitted
    07-02-2023 12:46

General

  • Target

    INQUIRY_.exe

  • Size

    336KB

  • MD5

    a2ab7106ec15430a26a4cc51b8652e90

  • SHA1

    568921c051e70728e3bda88be84229b39eb25101

  • SHA256

    a4d3f3fee4515751a055d909feb13caa9b57b004451a7593cae493865b480e70

  • SHA512

    a35d60cd0798142430f6d418d7f920850a05f881b38118cb586393510e29e6c14a14faca1f126c0db5e9646d21317b3368857bc68a672a966ad0040f9c14ca94

  • SSDEEP

    6144:yYa6xrR2TNg4m+y2qUJBBMVZ8vy1cK9tU1A15sW4FKo9wxGPM3F5v:yY3Lnt2qGBe8vy1zUO15sW4FKoqxGPMr

Malware Config

Extracted

Credentials

  • Protocol:
    smtp
  • Host:
    mail.bonsa.lt
  • Port:
    587
  • Username:
    [email protected]
  • Password:
    201Bon@21

Extracted

Family

agenttesla

Credentials

Signatures

  • AgentTesla

    Agent Tesla is a remote access tool (RAT) written in visual basic.

  • Executes dropped EXE 2 IoCs
  • 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 local email clients 2 TTPs

    Email clients store some user data on disk where infostealers will often target it.

  • Reads user/profile data of web browsers 2 TTPs

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

  • Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs
  • Suspicious use of SetThreadContext 1 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Suspicious behavior: MapViewOfSection 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 9 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\INQUIRY_.exe
    "C:\Users\Admin\AppData\Local\Temp\INQUIRY_.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of WriteProcessMemory
    PID:2040
    • C:\Users\Admin\AppData\Local\Temp\rankmtnsam.exe
      "C:\Users\Admin\AppData\Local\Temp\rankmtnsam.exe" C:\Users\Admin\AppData\Local\Temp\ythdluvvbpt.m
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Suspicious use of SetThreadContext
      • Suspicious behavior: MapViewOfSection
      • Suspicious use of WriteProcessMemory
      PID:992
      • C:\Users\Admin\AppData\Local\Temp\rankmtnsam.exe
        "C:\Users\Admin\AppData\Local\Temp\rankmtnsam.exe"
        3⤵
        • Executes dropped EXE
        • Accesses Microsoft Outlook profiles
        • Suspicious use of AdjustPrivilegeToken
        • outlook_office_path
        • outlook_win_path
        PID:1676

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Local\Temp\rankmtnsam.exe

    Filesize

    130KB

    MD5

    0da965d99c25571a8b067ecbf779b338

    SHA1

    d4439fadf4160a2238cbe60e1787a41d76f593bc

    SHA256

    605b20ccba6d4f9c5f6af2b9dc781b57ab1bc5ba9c459cdd9bcff90dde547e51

    SHA512

    6efa299e835ec22c872b5601c1cd2d38fef0a09f9ac5387b00b92d0404dd20bdf20b96479159734b8107165ab6e08c767c852c741c80eafa43579f9bfb5a7fe2

  • C:\Users\Admin\AppData\Local\Temp\rankmtnsam.exe

    Filesize

    130KB

    MD5

    0da965d99c25571a8b067ecbf779b338

    SHA1

    d4439fadf4160a2238cbe60e1787a41d76f593bc

    SHA256

    605b20ccba6d4f9c5f6af2b9dc781b57ab1bc5ba9c459cdd9bcff90dde547e51

    SHA512

    6efa299e835ec22c872b5601c1cd2d38fef0a09f9ac5387b00b92d0404dd20bdf20b96479159734b8107165ab6e08c767c852c741c80eafa43579f9bfb5a7fe2

  • C:\Users\Admin\AppData\Local\Temp\rankmtnsam.exe

    Filesize

    130KB

    MD5

    0da965d99c25571a8b067ecbf779b338

    SHA1

    d4439fadf4160a2238cbe60e1787a41d76f593bc

    SHA256

    605b20ccba6d4f9c5f6af2b9dc781b57ab1bc5ba9c459cdd9bcff90dde547e51

    SHA512

    6efa299e835ec22c872b5601c1cd2d38fef0a09f9ac5387b00b92d0404dd20bdf20b96479159734b8107165ab6e08c767c852c741c80eafa43579f9bfb5a7fe2

  • C:\Users\Admin\AppData\Local\Temp\uqnvalxzx.sl

    Filesize

    265KB

    MD5

    02571d716b019d0bab7801022f4cc46e

    SHA1

    8c163e913e5b75de564ad601456542dbbced3d8d

    SHA256

    06bf006af30bdc6585b65542fc2925639141b0cc4aba7cecbab2d4a6b06dc371

    SHA512

    06eb94abe49d4cba3e838bd55a124f1c3864dd378b138a2fcb02cc1f0fc53d7dd8afe5a727431d5c4a469063f8fdcc8125547e627b1036274bf2ece4dc3b5078

  • C:\Users\Admin\AppData\Local\Temp\ythdluvvbpt.m

    Filesize

    5KB

    MD5

    3e5e2196089eb03260b88778bda5982b

    SHA1

    25538aad7da47bf8c300feb6637f65f1476ddd30

    SHA256

    43098e2984e7e7df3d29235e21ec1bc225cd5f5d33e41d2cee8fb16e59bd8697

    SHA512

    8ba644124c6eb69d4e35a8ef1c5b7ec69d4d979a0e2ea1f67eaf781035bd501abb6e2252ef09648e8862ca5000016993e35d8e27780968f61f6048daaf737172

  • \Users\Admin\AppData\Local\Temp\rankmtnsam.exe

    Filesize

    130KB

    MD5

    0da965d99c25571a8b067ecbf779b338

    SHA1

    d4439fadf4160a2238cbe60e1787a41d76f593bc

    SHA256

    605b20ccba6d4f9c5f6af2b9dc781b57ab1bc5ba9c459cdd9bcff90dde547e51

    SHA512

    6efa299e835ec22c872b5601c1cd2d38fef0a09f9ac5387b00b92d0404dd20bdf20b96479159734b8107165ab6e08c767c852c741c80eafa43579f9bfb5a7fe2

  • \Users\Admin\AppData\Local\Temp\rankmtnsam.exe

    Filesize

    130KB

    MD5

    0da965d99c25571a8b067ecbf779b338

    SHA1

    d4439fadf4160a2238cbe60e1787a41d76f593bc

    SHA256

    605b20ccba6d4f9c5f6af2b9dc781b57ab1bc5ba9c459cdd9bcff90dde547e51

    SHA512

    6efa299e835ec22c872b5601c1cd2d38fef0a09f9ac5387b00b92d0404dd20bdf20b96479159734b8107165ab6e08c767c852c741c80eafa43579f9bfb5a7fe2

  • memory/1676-66-0x0000000000340000-0x0000000000370000-memory.dmp

    Filesize

    192KB

  • memory/1676-67-0x0000000000400000-0x0000000000441000-memory.dmp

    Filesize

    260KB

  • memory/2040-54-0x0000000076041000-0x0000000076043000-memory.dmp

    Filesize

    8KB