Overview

overview

10

Static

static

1

RFQ 071.23 020.23.exe

windows7-x64

10

RFQ 071.23 020.23.exe

windows10-2004-x64

10

Analysis

  • max time kernel
    77s
  • max time network
    141s
  • platform
    windows7_x64
  • resource
    win7-20230220-en
  • resource tags

    arch:x64arch:x86image:win7-20230220-enlocale:en-usos:windows7-x64system
  • submitted
    30-03-2023 07:52

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General

  • Target

    RFQ 071.23 020.23.exe

  • Size

    672KB

  • MD5

    482763510b94fcba0f140baf71913c52

  • SHA1

    0b80a3603e6a919232fb2ef003e56baa15f52f75

  • SHA256

    536a5d0e0a0283a2037d9a01efaf92c4e119647ad3b8aa4d644461de984399f8

  • SHA512

    c0a81e3898082ca3e416162b6a4a17779f16479025af51702c3e7c158a16cc24f9f9d7cbcce10e3b51d214e5f3297be2586d78284ba02d37800578018501f181

  • SSDEEP

    12288:vMw4EAPcLqbFLPc3eBxnt8pxlZT3yZrn0aHDyq9DSXALFW+JGcaLUn:vMwtAPcLqbFPseBxyB3yBDyq0GlBn

Score
10/10
agentteslaguloaderdownloaderkeyloggerspywarestealertrojan

Malware Config

Extracted

Family

agenttesla

Credentials

  • Protocol:     smtp
  • Host:
    us2.smtp.mailhostbox.com
  • Port:
    587
  • Username:
    [email protected]
  • Password:
    N!hfzy$8

Signatures

  • AgentTesla

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

    keyloggertrojanstealerspywareagenttesla
  • Guloader,Cloudeye

    A shellcode based downloader first seen in 2020.

    downloaderguloader
  • Checks QEMU agent file 2 TTPs 2 IoCs

    Checks presence of QEMU agent, possibly to detect virtualization.

  • Loads dropped DLL 2 IoCs
  • Legitimate hosting services abused for malware hosting/C2 1 TTPs
  • Suspicious use of NtCreateThreadExHideFromDebugger 1 IoCs
  • Suspicious use of NtSetInformationThreadHideFromDebugger 2 IoCs
  • Suspicious use of SetThreadContext 1 IoCs
  • Drops file in Windows directory 1 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious behavior: MapViewOfSection 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 9 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\RFQ 071.23 020.23.exe
    "C:\Users\Admin\AppData\Local\Temp\RFQ 071.23 020.23.exe"
    1⤵
    • Checks QEMU agent file
    • Loads dropped DLL
    • Suspicious use of NtSetInformationThreadHideFromDebugger
    • Suspicious use of SetThreadContext
    • Drops file in Windows directory
    • Suspicious behavior: MapViewOfSection
    • Suspicious use of WriteProcessMemory
    PID:1732
    • C:\Windows\Microsoft.NET\Framework\v4.0.30319\caspol.exe
      "C:\Users\Admin\AppData\Local\Temp\RFQ 071.23 020.23.exe"
      2⤵
        PID:904
      • C:\Windows\Microsoft.NET\Framework\v4.0.30319\caspol.exe
        "C:\Users\Admin\AppData\Local\Temp\RFQ 071.23 020.23.exe"
        2⤵
        • Checks QEMU agent file
        • Suspicious use of NtCreateThreadExHideFromDebugger
        • Suspicious use of NtSetInformationThreadHideFromDebugger
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        PID:1740

    Network

    MITRE ATT&CK Enterprise v6

    Replay Monitor

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    Downloads

    • \Users\Admin\AppData\Local\Temp\nsd12.tmp\AdvSplash.dll
      Filesize

      6KB

      MD5

      1871af84805057b5ebc05ee46b56625d

      SHA1

      50e1c315ad30f5f3f300c7cd9dd0d5d626fe0167

      SHA256

      62b3db0446750ca9fd693733eec927acc1f50012a47785343286e63b650b7621

      SHA512

      c1979ee98dfdb807776c439218528d80b4b244a87e692f1538e40f9c2c82db8b77485eb1429325b6f44419bf1f4cd454e43ff381eff077a8b4f4d9eb0d7e54d4

      Download Submit

    • \Users\Admin\AppData\Local\Temp\nsd12.tmp\System.dll
      Filesize

      12KB

      MD5

      564bb0373067e1785cba7e4c24aab4bf

      SHA1

      7c9416a01d821b10b2eef97b80899d24014d6fc1

      SHA256

      7a9ddee34562cd3703f1502b5c70e99cd5bba15de2b6845a3555033d7f6cb2a5

      SHA512

      22c61a323cb9293d7ec5c7e7e60674d0e2f7b29d55be25eb3c128ea2cd7440a1400cee17c43896b996278007c0d247f331a9b8964e3a40a0eb1404a9596c4472

      Download Submit

    • memory/1732-73-0x0000000005630000-0x0000000006015000-memory.dmp

      Filesize

      9.9MB

      Download

    • memory/1732-74-0x0000000005630000-0x0000000006015000-memory.dmp

      Filesize

      9.9MB

      Download

    • memory/1740-75-0x0000000000620000-0x0000000001005000-memory.dmp

      Filesize

      9.9MB

      Download

    • memory/1740-76-0x0000000000400000-0x0000000000615000-memory.dmp

      Filesize

      2.1MB

      Download

    • memory/1740-98-0x0000000000400000-0x0000000000615000-memory.dmp

      Filesize

      2.1MB

      Download

    • memory/1740-99-0x0000000000620000-0x0000000001005000-memory.dmp

      Filesize

      9.9MB

      Download

    • memory/1740-100-0x0000000000400000-0x000000000042E000-memory.dmp

      Filesize

      184KB

      Download

    • memory/1740-101-0x0000000034A20000-0x0000000034A60000-memory.dmp

      Filesize

      256KB

      Download

    • memory/1740-102-0x0000000000620000-0x0000000001005000-memory.dmp

      Filesize

      9.9MB

      Download