Analysis

  • max time kernel
    150s
  • max time network
    150s
  • platform
    windows10_x64
  • resource
    win10v20201028
  • submitted
    18-01-2021 21:51

General

  • Target

    SecuriteInfo.com.Generic.mg.fb5363e0cae04979.19519.exe

  • Size

    1.5MB

  • MD5

    fb5363e0cae049792ad0705042daaaa4

  • SHA1

    ecac4b6890de7ce53acdd794bf42cfb2019ad76e

  • SHA256

    e0568a1b9f5de82ff98e314fcd590ee101e0189c2b62052a38f512c5d50e5920

  • SHA512

    753ea44b69b17e03ae7e6b3ec5f2e304472c5a80da855b5ff8592d9fa0466aa590c6ba1eedf9ffe62560c6324e22f527d6e0ac810991d3df0c4a255bc5fdcaec

Malware Config

Signatures

  • Snake Keylogger

    Keylogger and Infostealer first seen in November 2020.

  • Snake Keylogger Payload 2 IoCs
  • Executes dropped EXE 2 IoCs
  • Reads data files stored by FTP clients 2 TTPs

    Tries to access configuration files associated with programs like FileZilla.

  • Reads user/profile data of local email clients 2 TTPs

    Email clients store some user data on disk where infostealers will often target it.

  • Reads user/profile data of web browsers 2 TTPs

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

  • Adds Run key to start application 2 TTPs 2 IoCs
  • Looks up external IP address via web service 3 IoCs

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

  • Suspicious use of SetThreadContext 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 24 IoCs
  • Suspicious use of AdjustPrivilegeToken 3 IoCs
  • Suspicious use of WriteProcessMemory 17 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.Generic.mg.fb5363e0cae04979.19519.exe
    "C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.Generic.mg.fb5363e0cae04979.19519.exe"
    1⤵
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:4692
    • C:\Windows\SysWOW64\cmd.exe
      "cmd.exe" /c REG ADD "HKCU\Software\Microsoft\Windows\CurrentVersion\Run" /f /v "fxyt" /t REG_SZ /d "C:\Users\Admin\jra.exe"
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:3096
      • C:\Windows\SysWOW64\reg.exe
        REG ADD "HKCU\Software\Microsoft\Windows\CurrentVersion\Run" /f /v "fxyt" /t REG_SZ /d "C:\Users\Admin\jra.exe"
        3⤵
        • Adds Run key to start application
        PID:508
    • C:\Users\Admin\jra.exe
      "C:\Users\Admin\jra.exe"
      2⤵
      • Executes dropped EXE
      • Suspicious use of SetThreadContext
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:368
      • C:\Users\Admin\AppData\Local\Temp\InstallUtil.exe
        "C:\Users\Admin\AppData\Local\Temp\InstallUtil.exe"
        3⤵
        • Executes dropped EXE
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        PID:1688

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\InstallUtil.exe

    MD5

    91c9ae9c9a17a9db5e08b120e668c74c

    SHA1

    50770954c1ceb0bb6f1d5d3f2de2a0a065773723

    SHA256

    e56a7e5d3ab9675555e2897fc3faa2dd9265008a4967a7d54030ab8184d2d38f

    SHA512

    ca504af192e3318359d4742a2ef26ae1b5d040a4f9942782e02549a310158d5d5dbf919b4c748c31ee609d2046bd23ee0c22712891c86ae4a1e3a58c6e67647e

  • C:\Users\Admin\AppData\Local\Temp\InstallUtil.exe

    MD5

    91c9ae9c9a17a9db5e08b120e668c74c

    SHA1

    50770954c1ceb0bb6f1d5d3f2de2a0a065773723

    SHA256

    e56a7e5d3ab9675555e2897fc3faa2dd9265008a4967a7d54030ab8184d2d38f

    SHA512

    ca504af192e3318359d4742a2ef26ae1b5d040a4f9942782e02549a310158d5d5dbf919b4c748c31ee609d2046bd23ee0c22712891c86ae4a1e3a58c6e67647e

  • C:\Users\Admin\jra.exe

    MD5

    fb5363e0cae049792ad0705042daaaa4

    SHA1

    ecac4b6890de7ce53acdd794bf42cfb2019ad76e

    SHA256

    e0568a1b9f5de82ff98e314fcd590ee101e0189c2b62052a38f512c5d50e5920

    SHA512

    753ea44b69b17e03ae7e6b3ec5f2e304472c5a80da855b5ff8592d9fa0466aa590c6ba1eedf9ffe62560c6324e22f527d6e0ac810991d3df0c4a255bc5fdcaec

  • C:\Users\Admin\jra.exe

    MD5

    fb5363e0cae049792ad0705042daaaa4

    SHA1

    ecac4b6890de7ce53acdd794bf42cfb2019ad76e

    SHA256

    e0568a1b9f5de82ff98e314fcd590ee101e0189c2b62052a38f512c5d50e5920

    SHA512

    753ea44b69b17e03ae7e6b3ec5f2e304472c5a80da855b5ff8592d9fa0466aa590c6ba1eedf9ffe62560c6324e22f527d6e0ac810991d3df0c4a255bc5fdcaec

  • memory/368-26-0x00000000053A1000-0x00000000053A2000-memory.dmp

    Filesize

    4KB

  • memory/368-25-0x000000000BCC0000-0x000000000BCC1000-memory.dmp

    Filesize

    4KB

  • memory/368-24-0x0000000007EC0000-0x0000000007ECB000-memory.dmp

    Filesize

    44KB

  • memory/368-23-0x00000000053A0000-0x00000000053A1000-memory.dmp

    Filesize

    4KB

  • memory/368-16-0x0000000073430000-0x0000000073B1E000-memory.dmp

    Filesize

    6.9MB

  • memory/368-13-0x0000000000000000-mapping.dmp

  • memory/508-11-0x0000000000000000-mapping.dmp

  • memory/1688-27-0x0000000000400000-0x0000000000468000-memory.dmp

    Filesize

    416KB

  • memory/1688-28-0x00000000004638FE-mapping.dmp

  • memory/1688-39-0x00000000065D0000-0x00000000065D1000-memory.dmp

    Filesize

    4KB

  • memory/1688-37-0x0000000006650000-0x0000000006651000-memory.dmp

    Filesize

    4KB

  • memory/1688-36-0x0000000005610000-0x0000000005611000-memory.dmp

    Filesize

    4KB

  • memory/1688-34-0x0000000005B40000-0x0000000005B41000-memory.dmp

    Filesize

    4KB

  • memory/1688-31-0x0000000073430000-0x0000000073B1E000-memory.dmp

    Filesize

    6.9MB

  • memory/3096-10-0x0000000000000000-mapping.dmp

  • memory/4692-2-0x0000000073430000-0x0000000073B1E000-memory.dmp

    Filesize

    6.9MB

  • memory/4692-5-0x0000000005640000-0x0000000005641000-memory.dmp

    Filesize

    4KB

  • memory/4692-3-0x0000000000CB0000-0x0000000000CB1000-memory.dmp

    Filesize

    4KB

  • memory/4692-12-0x0000000005861000-0x0000000005862000-memory.dmp

    Filesize

    4KB

  • memory/4692-6-0x0000000005860000-0x0000000005861000-memory.dmp

    Filesize

    4KB

  • memory/4692-7-0x0000000002FF0000-0x000000000300E000-memory.dmp

    Filesize

    120KB

  • memory/4692-8-0x0000000005610000-0x0000000005611000-memory.dmp

    Filesize

    4KB

  • memory/4692-9-0x0000000008010000-0x0000000008011000-memory.dmp

    Filesize

    4KB