Analysis

  • max time kernel
    51s
  • max time network
    121s
  • platform
    windows10_x64
  • resource
    win10v20201028
  • submitted
    13-01-2021 07:19

General

  • Target

    onYLLDPXswyCVZu.exe

  • Size

    1.0MB

  • MD5

    1266b6b357e6126fcb5f8f2c509e668e

  • SHA1

    e0404662e7cd00b331dd70bac3f14b38c60e7a68

  • SHA256

    64fa23f22cfa820eb89b80e1db1502fcaebcb66c1731e92f550c12ca940e8075

  • SHA512

    22883fa31c31e093bdc6d697815abe661d558403a53bceab14408129954251ff2cbee21ffec1a67924c94f57a86f104dbb5f2ed240117ba737d111ff97b2301b

Score
7/10

Malware Config

Signatures

  • 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.

  • 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
  • Creates scheduled task(s) 1 TTPs 1 IoCs

    Schtasks is often used by malware for persistence or to perform post-infection execution.

  • Suspicious behavior: EnumeratesProcesses 8 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 11 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\onYLLDPXswyCVZu.exe
    "C:\Users\Admin\AppData\Local\Temp\onYLLDPXswyCVZu.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:508
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\pTeknAxJ" /XML "C:\Users\Admin\AppData\Local\Temp\tmpEB6.tmp"
      2⤵
      • Creates scheduled task(s)
      PID:204
    • C:\Users\Admin\AppData\Local\Temp\onYLLDPXswyCVZu.exe
      "{path}"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:416

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\onYLLDPXswyCVZu.exe.log

    MD5

    0c2899d7c6746f42d5bbe088c777f94c

    SHA1

    622f66c5f7a3c91b28a9f43ce7c6cabadbf514f1

    SHA256

    5b0b99740cadaeff7b9891136644b396941547e20cc7eea646560d0dad5a5458

    SHA512

    ab7a3409ed4b6ca00358330a3aa4ef6de7d81eb21a5e24bb629ef6a7c7c4e2a70ca3accfbc989ed6e495fdb8eb6203a26d6f2a37b2a5809af4276af375b49078

  • C:\Users\Admin\AppData\Local\Temp\tmpEB6.tmp

    MD5

    f01bea082cb939659f0ea6bbfc6dd794

    SHA1

    c3e9394e95e4e4b6ff997b908de99bb7d1112621

    SHA256

    0f2c10b67782552b52148b7dfafe52fd5c574ba735a7ca848788f364c3312d77

    SHA512

    840f0748cd1f00c7ddab9d30cb3bd1c21fd5348ea0d2525dba7fdb23b2c00510be1f1315d50bd5778947ebc14afa928063b2f181fab743210f8f2de36bdf3e7b

  • memory/204-11-0x0000000000000000-mapping.dmp

  • memory/416-21-0x0000000006C90000-0x0000000006C91000-memory.dmp

    Filesize

    4KB

  • memory/416-16-0x0000000073520000-0x0000000073C0E000-memory.dmp

    Filesize

    6.9MB

  • memory/416-14-0x000000000046573E-mapping.dmp

  • memory/416-13-0x0000000000400000-0x000000000046A000-memory.dmp

    Filesize

    424KB

  • memory/508-6-0x0000000007540000-0x0000000007541000-memory.dmp

    Filesize

    4KB

  • memory/508-10-0x0000000009B70000-0x0000000009B71000-memory.dmp

    Filesize

    4KB

  • memory/508-9-0x0000000009A10000-0x0000000009AC5000-memory.dmp

    Filesize

    724KB

  • memory/508-8-0x0000000007740000-0x000000000774E000-memory.dmp

    Filesize

    56KB

  • memory/508-7-0x00000000074F0000-0x00000000074F1000-memory.dmp

    Filesize

    4KB

  • memory/508-2-0x0000000073520000-0x0000000073C0E000-memory.dmp

    Filesize

    6.9MB

  • memory/508-5-0x00000000079A0000-0x00000000079A1000-memory.dmp

    Filesize

    4KB

  • memory/508-3-0x00000000006D0000-0x00000000006D1000-memory.dmp

    Filesize

    4KB