Analysis

  • max time kernel
    131s
  • max time network
    137s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-en-20220113
  • submitted
    15-03-2022 16:36

General

  • Target

    0a63a636528473bd9ae6170a601ebf535de5eb0d4700dd653345bad8833c4bc9.exe

  • Size

    1.3MB

  • MD5

    9706ff18ad84be5c698f4ab7a8281bff

  • SHA1

    4185e6bc2543925d96babb928a15f8dfd84027d8

  • SHA256

    0a63a636528473bd9ae6170a601ebf535de5eb0d4700dd653345bad8833c4bc9

  • SHA512

    fef75d0c0852e5ae5f8160f711b0c0d7d2c45529fbb863be9d3aee429e8f736477d353f7ae1541101e125658c2a9534596bfbef8e917a6a438df61ae98d1d711

Malware Config

Signatures

  • Echelon

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

  • Echelon log file 1 IoCs

    Detects a log file produced by Echelon.

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

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

  • Drops startup file 2 IoCs
  • Reads user/profile data of web browsers 2 TTPs

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

  • Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs
  • 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 3 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.

  • Creates scheduled task(s) 1 TTPs 1 IoCs

    Schtasks is often used by malware for persistence or to perform post-infection execution.

  • Delays execution with timeout.exe 2 IoCs
  • Suspicious behavior: EnumeratesProcesses 3 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 12 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\0a63a636528473bd9ae6170a601ebf535de5eb0d4700dd653345bad8833c4bc9.exe
    "C:\Users\Admin\AppData\Local\Temp\0a63a636528473bd9ae6170a601ebf535de5eb0d4700dd653345bad8833c4bc9.exe"
    1⤵
    • Checks computer location settings
    • Accesses Microsoft Outlook profiles
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    • outlook_office_path
    • outlook_win_path
    PID:1440
    • C:\Windows\system32\cmd.exe
      C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\tmp6937.tmp.cmd""
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:3384
      • C:\Windows\system32\timeout.exe
        timeout 4
        3⤵
        • Delays execution with timeout.exe
        PID:2580
    • C:\Windows\system32\cmd.exe
      C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\.cmd""
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:4708
      • C:\Windows\system32\timeout.exe
        timeout 4
        3⤵
        • Delays execution with timeout.exe
        PID:4584
    • C:\ProgramData\Decoder.exe
      "C:\ProgramData\Decoder.exe"
      2⤵
      • Executes dropped EXE
      • Checks computer location settings
      • Drops startup file
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:4532
      • C:\Windows\System32\schtasks.exe
        "C:\Windows\System32\schtasks.exe" /create /sc MINUTE /mo 1 /tn "Windows Services" /tr "\systems32_bit\systems32.exe" /f
        3⤵
        • Creates scheduled task(s)
        PID:1016

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • C:\ProgramData\Decoder.exe

    MD5

    e753a9a4c3a393d9eccc31e5c6aded66

    SHA1

    5501ae71598925711dbee54f6ee1c827dd01d845

    SHA256

    52773fccbe6883ca7465ffe857c3fe7193521f0807bd8462f95bd4ad73be9867

    SHA512

    ee03d79cd24db07c3466cc602a657c9eb33119267b591a64a0d9215e3a80a24e3c435275ccfb5ffd7356def5bf717c5f2d8bc9a5b2daf1950ecf951b5e614c2e

  • C:\ProgramData\Decoder.exe

    MD5

    e753a9a4c3a393d9eccc31e5c6aded66

    SHA1

    5501ae71598925711dbee54f6ee1c827dd01d845

    SHA256

    52773fccbe6883ca7465ffe857c3fe7193521f0807bd8462f95bd4ad73be9867

    SHA512

    ee03d79cd24db07c3466cc602a657c9eb33119267b591a64a0d9215e3a80a24e3c435275ccfb5ffd7356def5bf717c5f2d8bc9a5b2daf1950ecf951b5e614c2e

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

    MD5

    73712247036b6a24d16502c57a3e5679

    SHA1

    65ca9edadb0773fc34db7dfefe9e6416f1ac17fa

    SHA256

    8bd49d7e7e6b2c2dc16a4cb0eebb8f28892775fad56c9e4aaa22d59f01883cd0

    SHA512

    548eef10b0118f7d907fa19c12de68b47278afffb3eb9460621efb2b711ebcf6b90d0ea1c077fc480e032bf241fb3f8cc995ec1373e301446f89f1a74a6309de

  • C:\Users\Admin\AppData\Local\Temp\tmp6937.tmp.cmd

    MD5

    0c75761cd5029fbbf1e07c38cf0e52ae

    SHA1

    fedfd770ddf5c809d5e6b6f16ff012781805f47d

    SHA256

    28b1d7e93951a5838b9dbf55832e5baff5566502f899062b5584f34562d8480e

    SHA512

    14d992fe0d4f71b4fd9948a2c739df3fc4fcd16beb33bb11eeba0651dc9af0d7859fc01e09bd9b54ba4eec510b19393dd549c3f93f11321388e9a0e01954c3ae

  • memory/1440-130-0x0000000000F60000-0x00000000010B4000-memory.dmp

    Filesize

    1.3MB

  • memory/1440-132-0x000000001BE80000-0x000000001BE82000-memory.dmp

    Filesize

    8KB

  • memory/1440-131-0x00007FFE82B80000-0x00007FFE83641000-memory.dmp

    Filesize

    10.8MB

  • memory/4532-135-0x00000000007A0000-0x00000000007B0000-memory.dmp

    Filesize

    64KB

  • memory/4532-138-0x00007FFE82B80000-0x00007FFE83641000-memory.dmp

    Filesize

    10.8MB

  • memory/4532-139-0x000000001C620000-0x000000001C622000-memory.dmp

    Filesize

    8KB