Analysis

  • max time kernel
    146s
  • max time network
    150s
  • platform
    windows10_x64
  • resource
    win10v20201028
  • submitted
    15-02-2021 10:17

General

  • Target

    FC33.exe

  • Size

    19KB

  • MD5

    5898d001eedb60a637f9334965e241a9

  • SHA1

    59d543084a8230ac387dee45b027c47282256d02

  • SHA256

    08eb269d6c3bfaf4d3cde53a987e0adc96a171235d3c34e3c6e9422920e793dd

  • SHA512

    d8be87bddd9f289597221d864370dfdd1ea94d2910837e211f34eec0fee56477672d98bd0565059389ff6d9ac79002f0ffa792feb84db02b18f432c6174e71e0

Malware Config

Signatures

  • RedLine

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

  • RedLine Payload 2 IoCs
  • Executes dropped EXE 1 IoCs
  • Reads user/profile data of web browsers 2 TTPs

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

  • Suspicious use of SetThreadContext 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 9 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\FC33.exe
    "C:\Users\Admin\AppData\Local\Temp\FC33.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:4764
    • C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Default\chrome.exe
      "C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Default\chrome.exe"
      2⤵
      • Executes dropped EXE
      • Suspicious use of AdjustPrivilegeToken
      PID:3084

Network

MITRE ATT&CK Matrix ATT&CK v6

Credential Access

Credentials in Files

1
T1081

Collection

Data from Local System

1
T1005

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Default\chrome.exe
    MD5

    6a673bfc3b67ae9782cb31af2f234c68

    SHA1

    7544e89566d91e84e3cd437b9a073e5f6b56566e

    SHA256

    978a4093058aa2ebf05dc353897d90d950324389879b57741b64160825b5ec0e

    SHA512

    72c302372ce87ceda2a3c70a6005d3f9c112f1641bc7fe6824c718971233e66c07e2996d2785fa358566c38714c25ea812c05c7cfd2f588284849d495fd24f39

  • memory/3084-13-0x0000000002D70000-0x0000000002D92000-memory.dmp
    Filesize

    136KB

  • memory/3084-21-0x0000000005320000-0x0000000005321000-memory.dmp
    Filesize

    4KB

  • memory/3084-6-0x0000000000400000-0x0000000000435000-memory.dmp
    Filesize

    212KB

  • memory/3084-7-0x000000000040CD2F-mapping.dmp
  • memory/3084-12-0x0000000005780000-0x0000000005781000-memory.dmp
    Filesize

    4KB

  • memory/3084-9-0x00000000029D0000-0x00000000029D1000-memory.dmp
    Filesize

    4KB

  • memory/3084-10-0x0000000073380000-0x0000000073A6E000-memory.dmp
    Filesize

    6.9MB

  • memory/3084-14-0x0000000006290000-0x0000000006291000-memory.dmp
    Filesize

    4KB

  • memory/3084-23-0x0000000002994000-0x0000000002996000-memory.dmp
    Filesize

    8KB

  • memory/3084-22-0x00000000055B0000-0x00000000055B1000-memory.dmp
    Filesize

    4KB

  • memory/3084-11-0x0000000002BD0000-0x0000000002BF4000-memory.dmp
    Filesize

    144KB

  • memory/3084-15-0x00000000052D0000-0x00000000052D1000-memory.dmp
    Filesize

    4KB

  • memory/3084-16-0x00000000052B0000-0x00000000052B1000-memory.dmp
    Filesize

    4KB

  • memory/3084-17-0x0000000000400000-0x0000000000435000-memory.dmp
    Filesize

    212KB

  • memory/3084-18-0x0000000002990000-0x0000000002991000-memory.dmp
    Filesize

    4KB

  • memory/3084-19-0x0000000002992000-0x0000000002993000-memory.dmp
    Filesize

    4KB

  • memory/3084-20-0x0000000002993000-0x0000000002994000-memory.dmp
    Filesize

    4KB

  • memory/4764-2-0x00000000732D0000-0x00000000739BE000-memory.dmp
    Filesize

    6.9MB

  • memory/4764-5-0x0000000004980000-0x0000000004981000-memory.dmp
    Filesize

    4KB

  • memory/4764-3-0x00000000000C0000-0x00000000000C1000-memory.dmp
    Filesize

    4KB