Resubmissions

12/01/2022, 09:43

220112-lqbc3acah66

24/06/2021, 08:43

210624-ftmswej82x10

Analysis

  • max time kernel
    146s
  • max time network
    191s
  • platform
    windows7_x64
  • resource
    win7v20210408
  • submitted
    24/06/2021, 08:43

General

  • Target
    a1898e4ebec6f43b6448701b7cd456c5.exe
  • Size 682KB
  • Sample210624-ftmswej82x
  • SHA256 393aac4cba99e10526596a762318a76c8380e1283ccf01aad2b10f5e5b0cbb90
  • MD5 SHA1 SHA512

Malware Config

Extracted

Family
  • redline

Botnet
  • HCwIKyY0PFw4GQlL

C2
  • BS0DQyMaPBQ6IHwBKSYiBTg4F0UFLQNDICQWUQ==

Signatures

  • RedLine

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

  • RedLine Payload 2 IoCs
  • Downloads MZ/PE file
  • Executes dropped EXE 1 IoCs
  • Loads dropped DLL 2 IoCs
  • Reads user/profile data of web browsers 2 TTPs

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

  • Accesses cryptocurrency files/wallets, possible credential harvesting 2 TTPs
  • Checks installed software on the system 1 TTPs

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

  • Legitimate hosting services abused for malware hosting/C2 1 TTPs
  • Checks processor information in registry 2 TTPs 2 IoCs

    Processor information is often read in order to detect sandboxing environments.

  • Modifies system certificate store 2 TTPs 3 IoCs
  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 4 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\a1898e4ebec6f43b6448701b7cd456c5.exe
    "C:\Users\Admin\AppData\Local\Temp\a1898e4ebec6f43b6448701b7cd456c5.exe"
    1⤵
    • Loads dropped DLL
    • Checks processor information in registry
    • Suspicious use of WriteProcessMemory
    PID:1240
    • C:\Users\Admin\AppData\Roaming\nailedp\edspolishpp.exe
      edspolishpp.exe
      2⤵
      • Executes dropped EXE
      • Modifies system certificate store
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:928

Network

        MITRE ATT&CK Enterprise v6

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        memory/928-66-0x0000000000220000-0x000000000024F000-memory.dmp

        memory/928-67-0x0000000000400000-0x0000000000908000-memory.dmp

        memory/928-68-0x0000000000990000-0x00000000009AB000-memory.dmp

        memory/928-69-0x0000000002211000-0x0000000002212000-memory.dmp

        memory/928-70-0x0000000002212000-0x0000000002213000-memory.dmp

        memory/928-71-0x0000000002213000-0x0000000002214000-memory.dmp

        memory/928-72-0x0000000002580000-0x0000000002599000-memory.dmp

        memory/928-73-0x0000000002214000-0x0000000002216000-memory.dmp

        memory/1240-61-0x0000000000400000-0x00000000004D5000-memory.dmp

        memory/1240-60-0x0000000001E60000-0x0000000001F2E000-memory.dmp

        memory/1240-59-0x0000000075B31000-0x0000000075B33000-memory.dmp