Analysis

  • max time kernel
    117s
  • max time network
    131s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220414-en
  • submitted
    11-07-2022 12:25

General

  • Target

    Lucky Fixed.exe

  • Size

    1.5MB

  • MD5

    02346b31c94a650a16dea1a262db5153

  • SHA1

    a301b0d05d01a35b6e893d3d2ebe9bf8985ae434

  • SHA256

    2da5d10cdba79d8a8153eaf7ab3d4aad3afaf14c6d9098f7720858c61910948c

  • SHA512

    1b6bd5adc407829ffbfadea6e4d37b0b21baaac926fd909ed9fe0c7084a2f432df11a2640dd6423cff9a8beb0b4e11b272c2a02f48f75b64dc25f8b109838c9a

Score
10/10

Malware Config

Signatures

  • Echelon

    Echelon is a .NET stealer that targets passwords from browsers, email and cryptocurrency clients.

  • Executes dropped EXE 1 IoCs
  • Checks computer location settings 2 TTPs 1 IoCs

    Looks up country code configured in the registry, likely geofence.

  • 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 5 IoCs

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

  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

  • Checks processor information in registry 2 TTPs 2 IoCs

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

  • Delays execution with timeout.exe 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 5 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 7 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\Lucky Fixed.exe
    "C:\Users\Admin\AppData\Local\Temp\Lucky Fixed.exe"
    1⤵
    • Checks computer location settings
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:484
    • C:\ProgramData\Decoder.exe
      "C:\ProgramData\Decoder.exe"
      2⤵
      • Executes dropped EXE
      • Checks processor information in registry
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:4484
    • C:\Windows\system32\cmd.exe
      C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\.cmd""
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:2480
      • C:\Windows\system32\timeout.exe
        timeout 4
        3⤵
        • Delays execution with timeout.exe
        PID:2968

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\ProgramData\Decoder.exe

    Filesize

    490KB

    MD5

    c29c0d495ed13e703f433d53bdffdab8

    SHA1

    74ed36e6b6027b61abcfe2956670ffd9de7fd71a

    SHA256

    20309707aa6fc678963aace7685a37839d439c850b1ba399bdbfbbeddc10ed4b

    SHA512

    fea4c1066ee6df3ebb29a354678a3d0f1398cd216b92b261296fcff580b00e19cefe24d975beebcc41854cceef3df2702d569811358dae4203a924fb52cf5426

  • C:\ProgramData\Decoder.exe

    Filesize

    490KB

    MD5

    c29c0d495ed13e703f433d53bdffdab8

    SHA1

    74ed36e6b6027b61abcfe2956670ffd9de7fd71a

    SHA256

    20309707aa6fc678963aace7685a37839d439c850b1ba399bdbfbbeddc10ed4b

    SHA512

    fea4c1066ee6df3ebb29a354678a3d0f1398cd216b92b261296fcff580b00e19cefe24d975beebcc41854cceef3df2702d569811358dae4203a924fb52cf5426

  • C:\Users\Admin\AppData\Local\Temp\.cmd

    Filesize

    85B

    MD5

    73712247036b6a24d16502c57a3e5679

    SHA1

    65ca9edadb0773fc34db7dfefe9e6416f1ac17fa

    SHA256

    8bd49d7e7e6b2c2dc16a4cb0eebb8f28892775fad56c9e4aaa22d59f01883cd0

    SHA512

    548eef10b0118f7d907fa19c12de68b47278afffb3eb9460621efb2b711ebcf6b90d0ea1c077fc480e032bf241fb3f8cc995ec1373e301446f89f1a74a6309de

  • memory/484-139-0x00007FFAFC2D0000-0x00007FFAFCD91000-memory.dmp

    Filesize

    10.8MB

  • memory/484-132-0x00007FFAFC2D0000-0x00007FFAFCD91000-memory.dmp

    Filesize

    10.8MB

  • memory/484-131-0x00007FFAFC2D0000-0x00007FFAFCD91000-memory.dmp

    Filesize

    10.8MB

  • memory/484-130-0x0000000000630000-0x00000000007B4000-memory.dmp

    Filesize

    1.5MB

  • memory/2480-135-0x0000000000000000-mapping.dmp

  • memory/2968-137-0x0000000000000000-mapping.dmp

  • memory/4484-133-0x0000000000000000-mapping.dmp

  • memory/4484-140-0x0000000004C50000-0x00000000051F4000-memory.dmp

    Filesize

    5.6MB

  • memory/4484-141-0x0000000006460000-0x00000000064F2000-memory.dmp

    Filesize

    584KB

  • memory/4484-142-0x0000000007390000-0x00000000073F6000-memory.dmp

    Filesize

    408KB