Analysis

  • max time kernel
    122s
  • max time network
    123s
  • platform
    windows7_x64
  • resource
    win7v20201028
  • 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 13 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:1080
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\pTeknAxJ" /XML "C:\Users\Admin\AppData\Local\Temp\tmpBB63.tmp"
      2⤵
      • Creates scheduled task(s)
      PID:1744
    • C:\Users\Admin\AppData\Local\Temp\onYLLDPXswyCVZu.exe
      "{path}"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:756

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\tmpBB63.tmp

    MD5

    0f95123fa8163b80e715d1aa5a04a627

    SHA1

    675ddc09da53559313b401b98ec6fadbc6dc3968

    SHA256

    60e4555ec1dac31adf58c4f7a95edba993d10f513cc57231f2bd9e363375c848

    SHA512

    aea949c89686cb33fbba318efc5b054fda6eca1cb8dc8d0d3da5d20c312465585c1e40ce006d61d93e240b1757c436cfb639279f4a03cbbe4ceed7996ddfb83b

  • memory/756-9-0x0000000000400000-0x000000000046A000-memory.dmp

    Filesize

    424KB

  • memory/756-10-0x000000000046573E-mapping.dmp

  • memory/756-11-0x0000000000400000-0x000000000046A000-memory.dmp

    Filesize

    424KB

  • memory/756-12-0x0000000000400000-0x000000000046A000-memory.dmp

    Filesize

    424KB

  • memory/756-13-0x0000000074C70000-0x000000007535E000-memory.dmp

    Filesize

    6.9MB

  • memory/1080-2-0x0000000074CF0000-0x00000000753DE000-memory.dmp

    Filesize

    6.9MB

  • memory/1080-3-0x0000000000940000-0x0000000000941000-memory.dmp

    Filesize

    4KB

  • memory/1080-5-0x0000000000280000-0x000000000028E000-memory.dmp

    Filesize

    56KB

  • memory/1080-6-0x0000000000540000-0x00000000005F5000-memory.dmp

    Filesize

    724KB

  • memory/1744-7-0x0000000000000000-mapping.dmp