Analysis

  • max time kernel
    147s
  • max time network
    141s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20231215-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
  • submitted
    29-12-2023 22:15

General

  • Target

    received PO Ref-28414779.exe

  • Size

    949KB

  • MD5

    e6548749208c5277f7484e157f907f6f

  • SHA1

    270a15384e0d9cc1c81153346f3662c7a4e758b5

  • SHA256

    80ebebc8221b876c5cfd1f93d9dd6685d0e6bae8238648fa529ab2e1644e3cd6

  • SHA512

    bb8b0770907b95d296382c4938e9a4ebec66e370ec002eb123d90ba78204f660649cc1e549779c8d8b232b96500f2e00361b7162c64faac12528d1638495ea42

  • SSDEEP

    12288:VxDc9F3nC0Py3gAheEJbjJEK/KpFTJWGwtNJkofEeo4Cb4+DffHRmeU2x8Czz5g/:tKpdEGwtNKo8ec5fvhBxZRMAL

Malware Config

Extracted

Family

snakekeylogger

Credentials

  • Protocol:
    smtp
  • Host:
    us2.smtp.mailhostbox.com
  • Port:
    587
  • Username:
    [email protected]
  • Password:
    BkKMmzZ1

Signatures

  • Snake Keylogger

    Keylogger and Infostealer first seen in November 2020.

  • 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
  • Looks up external IP address via web service 3 IoCs

    Uses a legitimate IP lookup service to find the infected system's external IP.

  • Suspicious use of SetThreadContext 1 IoCs
  • Program crash 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 6 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 14 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\received PO Ref-28414779.exe
    "C:\Users\Admin\AppData\Local\Temp\received PO Ref-28414779.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:208
    • C:\Users\Admin\AppData\Local\Temp\received PO Ref-28414779.exe
      "C:\Users\Admin\AppData\Local\Temp\received PO Ref-28414779.exe"
      2⤵
      • Accesses Microsoft Outlook profiles
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • outlook_office_path
      • outlook_win_path
      PID:2436
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 2436 -s 1148
        3⤵
        • Program crash
        PID:1396
    • C:\Users\Admin\AppData\Local\Temp\received PO Ref-28414779.exe
      "C:\Users\Admin\AppData\Local\Temp\received PO Ref-28414779.exe"
      2⤵
        PID:516
      • C:\Users\Admin\AppData\Local\Temp\received PO Ref-28414779.exe
        "C:\Users\Admin\AppData\Local\Temp\received PO Ref-28414779.exe"
        2⤵
          PID:1496
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -pss -s 452 -p 2436 -ip 2436
        1⤵
          PID:2588

        Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        • C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\received PO Ref-28414779.exe.log

          Filesize

          1KB

          MD5

          84e77a587d94307c0ac1357eb4d3d46f

          SHA1

          83cc900f9401f43d181207d64c5adba7a85edc1e

          SHA256

          e16024b092a026a9dc00df69d4b9bbcab7b2dc178dc5291fc308a1abc9304a99

          SHA512

          aefb5c62200b3ed97718d20a89990954d4d8acdc0a6a73c5a420f1bba619cb79e70c2cd0a579b9f52dc6b09e1de2cea6cd6cac4376cfee92d94e2c01d310f691

        • memory/208-5-0x00000000050B0000-0x00000000050C0000-memory.dmp

          Filesize

          64KB

        • memory/208-3-0x00000000050C0000-0x0000000005152000-memory.dmp

          Filesize

          584KB

        • memory/208-10-0x00000000069B0000-0x0000000006A4A000-memory.dmp

          Filesize

          616KB

        • memory/208-11-0x0000000009010000-0x0000000009078000-memory.dmp

          Filesize

          416KB

        • memory/208-4-0x0000000005270000-0x000000000530C000-memory.dmp

          Filesize

          624KB

        • memory/208-6-0x0000000005190000-0x000000000519A000-memory.dmp

          Filesize

          40KB

        • memory/208-7-0x0000000005720000-0x0000000005738000-memory.dmp

          Filesize

          96KB

        • memory/208-8-0x0000000075100000-0x00000000758B0000-memory.dmp

          Filesize

          7.7MB

        • memory/208-9-0x00000000050B0000-0x00000000050C0000-memory.dmp

          Filesize

          64KB

        • memory/208-2-0x0000000005780000-0x0000000005D24000-memory.dmp

          Filesize

          5.6MB

        • memory/208-0-0x0000000075100000-0x00000000758B0000-memory.dmp

          Filesize

          7.7MB

        • memory/208-1-0x00000000005F0000-0x00000000006E4000-memory.dmp

          Filesize

          976KB

        • memory/208-16-0x0000000075100000-0x00000000758B0000-memory.dmp

          Filesize

          7.7MB

        • memory/2436-15-0x0000000075100000-0x00000000758B0000-memory.dmp

          Filesize

          7.7MB

        • memory/2436-17-0x00000000052C0000-0x00000000052D0000-memory.dmp

          Filesize

          64KB

        • memory/2436-12-0x0000000000400000-0x000000000046A000-memory.dmp

          Filesize

          424KB

        • memory/2436-18-0x0000000006700000-0x00000000068C2000-memory.dmp

          Filesize

          1.8MB

        • memory/2436-19-0x0000000075100000-0x00000000758B0000-memory.dmp

          Filesize

          7.7MB