Analysis

  • max time kernel
    152s
  • max time network
    165s
  • platform
    windows10_x64
  • resource
    win10-en
  • submitted
    07/09/2021, 06:26

General

  • Target
    yes11.exe
  • Size 816KB
  • Sample210907-g68w2sfcfl
  • SHA256 284fa9b7685ebc3e71cf5d9956abe26103c8d9bafc29d3d417d4924dadfec00e
  • MD5 SHA1 SHA512

Malware Config

Extracted

Family
  • redline

Botnet
  • 0815

C2
  • 185.206.212.37:1134

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.

  • Looks up external IP address via web service 1 IoCs

    Uses a legitimate IP lookup service to find the infected system's external IP.

  • Suspicious use of SetThreadContext 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 6 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 12 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\yes11.exe
    "C:\Users\Admin\AppData\Local\Temp\yes11.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:3936
    • C:\Users\Admin\AppData\Local\Temp\yes11.exe
      "{path}"
      2⤵
        PID:3740
      • C:\Users\Admin\AppData\Local\Temp\yes11.exe
        "{path}"
        2⤵
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        PID:3148

    Network

          MITRE ATT&CK Enterprise v6

          Replay Monitor

          Loading Replay Monitor...

          Downloads

          memory/3148-136-0x00000000051E2000-0x00000000051E3000-memory.dmp

          memory/3148-137-0x00000000051E3000-0x00000000051E4000-memory.dmp

          memory/3148-144-0x0000000006AB0000-0x0000000006AB1000-memory.dmp

          memory/3148-142-0x00000000053E0000-0x00000000053E1000-memory.dmp

          memory/3148-141-0x0000000005180000-0x0000000005181000-memory.dmp

          memory/3148-130-0x00000000027E0000-0x0000000002810000-memory.dmp

          memory/3148-139-0x00000000050E0000-0x00000000050E1000-memory.dmp

          memory/3148-138-0x00000000051E4000-0x00000000051E6000-memory.dmp

          memory/3148-132-0x0000000002870000-0x000000000289E000-memory.dmp

          memory/3148-134-0x0000000000400000-0x0000000000440000-memory.dmp

          memory/3148-127-0x0000000000400000-0x0000000000440000-memory.dmp

          memory/3148-133-0x0000000006200000-0x0000000006201000-memory.dmp

          memory/3148-140-0x0000000005140000-0x0000000005141000-memory.dmp

          memory/3148-135-0x00000000051E0000-0x00000000051E1000-memory.dmp

          memory/3936-118-0x0000000005740000-0x0000000005741000-memory.dmp

          memory/3936-126-0x0000000001670000-0x00000000016AD000-memory.dmp

          memory/3936-115-0x0000000000DD0000-0x0000000000DD1000-memory.dmp

          memory/3936-125-0x00000000072C0000-0x0000000007316000-memory.dmp

          memory/3936-117-0x0000000005D80000-0x0000000005D81000-memory.dmp

          memory/3936-124-0x0000000005900000-0x0000000005904000-memory.dmp

          memory/3936-123-0x0000000007320000-0x0000000007321000-memory.dmp

          memory/3936-122-0x0000000005880000-0x00000000058E0000-memory.dmp

          memory/3936-121-0x0000000005730000-0x0000000005731000-memory.dmp

          memory/3936-120-0x00000000016F0000-0x00000000016F1000-memory.dmp

          memory/3936-119-0x0000000005870000-0x0000000005871000-memory.dmp