Analysis

  • max time kernel
    127s
  • max time network
    127s
  • platform
    windows10_x64
  • resource
    win10v20201028
  • submitted
    24-02-2021 07:43

General

  • Target

    OneTapV4.exe

  • Size

    831KB

  • MD5

    51e9c5a0bcf4e9e1e9f33bd91b3e50f2

  • SHA1

    f6fd583d071cf8167fc065fbddbb89c92d18f4cf

  • SHA256

    75ae1751515b48d24859c91fd08bd0595d84decb06566c1d3eec6363b0be9d82

  • SHA512

    4ace76f28cdd99eded87003fe7d3d2a89f1e0f0862f8fb00fd7132c4092c7813ba154a726736881b36e8911b9957f50c9f35f8305970d956e4529092394163e9

Malware Config

Signatures

  • RedLine

    RedLine Stealer is a malware family written in C#, first appearing in early 2020.

  • RedLine Payload 2 IoCs
  • Reads user/profile data of web browsers 2 TTPs

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

  • Checks installed software on the system 1 TTPs

    Looks up Uninstall key entries in the registry to enumerate software on the system.

  • Suspicious use of SetThreadContext 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 7 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 11 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\OneTapV4.exe
    "C:\Users\Admin\AppData\Local\Temp\OneTapV4.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:496
    • C:\Users\Admin\AppData\Local\Temp\OneTapV4.exe
      "C:\Users\Admin\AppData\Local\Temp\OneTapV4.exe"
      2⤵
        PID:1992
      • C:\Users\Admin\AppData\Local\Temp\OneTapV4.exe
        "C:\Users\Admin\AppData\Local\Temp\OneTapV4.exe"
        2⤵
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        PID:1460

    Network

    MITRE ATT&CK Matrix ATT&CK v6

    Credential Access

    Credentials in Files

    1
    T1081

    Discovery

    Query Registry

    1
    T1012

    Collection

    Data from Local System

    1
    T1005

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\OneTapV4.exe.log
      MD5

      5b50852bf977f644bcd5997b7b5883c1

      SHA1

      8b53694b796620422b366dc5b8dbb3ce3060473c

      SHA256

      667bc8c8d53eddf6355877344b669db4fb9762e6320afc7316c3786213a254a9

      SHA512

      7e794fa7de5eca585000ef840ca821f36205d25b389747339d8b8d58b1ef3cd16306e62288f86027cbe6a76eeccc9dc7634a11c94ba551f3ce42ee874fac712d

    • memory/496-9-0x00000000076F0000-0x00000000076F1000-memory.dmp
      Filesize

      4KB

    • memory/496-3-0x00000000004D0000-0x00000000004D1000-memory.dmp
      Filesize

      4KB

    • memory/496-11-0x00000000078E0000-0x00000000078E4000-memory.dmp
      Filesize

      16KB

    • memory/496-7-0x0000000007770000-0x0000000007771000-memory.dmp
      Filesize

      4KB

    • memory/496-8-0x0000000007480000-0x0000000007481000-memory.dmp
      Filesize

      4KB

    • memory/496-2-0x0000000073B70000-0x000000007425E000-memory.dmp
      Filesize

      6.9MB

    • memory/496-10-0x0000000007810000-0x0000000007811000-memory.dmp
      Filesize

      4KB

    • memory/496-5-0x0000000007630000-0x0000000007631000-memory.dmp
      Filesize

      4KB

    • memory/496-12-0x0000000000CE0000-0x0000000000D27000-memory.dmp
      Filesize

      284KB

    • memory/496-6-0x0000000007CD0000-0x0000000007CD1000-memory.dmp
      Filesize

      4KB

    • memory/1460-20-0x0000000004FD0000-0x0000000004FD1000-memory.dmp
      Filesize

      4KB

    • memory/1460-23-0x0000000004FE0000-0x0000000004FE1000-memory.dmp
      Filesize

      4KB

    • memory/1460-13-0x0000000000400000-0x0000000000426000-memory.dmp
      Filesize

      152KB

    • memory/1460-19-0x0000000004EC0000-0x0000000004EC1000-memory.dmp
      Filesize

      4KB

    • memory/1460-16-0x0000000073B70000-0x000000007425E000-memory.dmp
      Filesize

      6.9MB

    • memory/1460-21-0x0000000004E40000-0x0000000004E41000-memory.dmp
      Filesize

      4KB

    • memory/1460-22-0x00000000055F0000-0x00000000055F1000-memory.dmp
      Filesize

      4KB

    • memory/1460-14-0x000000000041EFE2-mapping.dmp
    • memory/1460-24-0x0000000005040000-0x0000000005041000-memory.dmp
      Filesize

      4KB

    • memory/1460-25-0x0000000005080000-0x0000000005081000-memory.dmp
      Filesize

      4KB

    • memory/1460-26-0x00000000052D0000-0x00000000052D1000-memory.dmp
      Filesize

      4KB

    • memory/1460-27-0x00000000061D0000-0x00000000061D1000-memory.dmp
      Filesize

      4KB

    • memory/1460-28-0x00000000068D0000-0x00000000068D1000-memory.dmp
      Filesize

      4KB

    • memory/1460-31-0x0000000006590000-0x0000000006591000-memory.dmp
      Filesize

      4KB

    • memory/1460-32-0x0000000007090000-0x0000000007091000-memory.dmp
      Filesize

      4KB