Analysis

  • max time kernel
    106s
  • max time network
    112s
  • platform
    windows10_x64
  • resource
    win10v20201028
  • submitted
    18-01-2021 07:05

General

  • Target

    259828bb5f45d915f7b9b28867e46724.exe

  • Size

    447KB

  • MD5

    259828bb5f45d915f7b9b28867e46724

  • SHA1

    e53f6dcc0e057a6d3f871bfcaea3046caf514bbe

  • SHA256

    9a654036705d1183d6d86f20b3124a1c3e03034286391311b66034130f7ed645

  • SHA512

    aaff6a93d9ca0921b6c4e35bde83e8a0b55f34b2b8552a950a508ab7291d0adf403f4af8c9dbb3fc02ef5aa70ffac9630ca703291c780eaaaff00065949b511e

Malware Config

Signatures

  • Snake Keylogger

    Keylogger and Infostealer first seen in November 2020.

  • Snake Keylogger Payload 1 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
  • Creates scheduled task(s) 1 TTPs 1 IoCs

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

  • Suspicious behavior: EnumeratesProcesses 8 IoCs
  • Suspicious behavior: MapViewOfSection 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 10 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\259828bb5f45d915f7b9b28867e46724.exe
    "C:\Users\Admin\AppData\Local\Temp\259828bb5f45d915f7b9b28867e46724.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious behavior: MapViewOfSection
    • Suspicious use of WriteProcessMemory
    PID:1052
    • C:\Windows\SysWOW64\cmd.exe
      cmd /c schtasks /Create /TN name /XML "C:\Users\Admin\AppData\Local\Temp\64a93f59b5894fd5b0d60f9f52db3822.xml"
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:2672
      • C:\Windows\SysWOW64\schtasks.exe
        schtasks /Create /TN name /XML "C:\Users\Admin\AppData\Local\Temp\64a93f59b5894fd5b0d60f9f52db3822.xml"
        3⤵
        • Creates scheduled task(s)
        PID:3052
    • C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe
      "C:\Users\Admin\AppData\Local\Temp\259828bb5f45d915f7b9b28867e46724.exe"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2748

Network

MITRE ATT&CK Matrix ATT&CK v6

Execution

Scheduled Task

1
T1053

Persistence

Scheduled Task

1
T1053

Privilege Escalation

Scheduled Task

1
T1053

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\64a93f59b5894fd5b0d60f9f52db3822.xml
    MD5

    a36564afc14b3eb0849c01a3afdb9944

    SHA1

    4dcee9fae3fde4e46b08529bc0ba067150686f07

    SHA256

    9d4342f763c5d62a06f69aa6fdcb1caa376ff2f2c0972f36b487f73b4d221996

    SHA512

    782082aa36ae056734e90fc079c813dfef59420571a1b70cde4cf15eb6c870f85b2bfe0748ef4db9df3d010c08671bff744d78178ba75bf2ba02b665f044ae89

  • memory/2672-2-0x0000000000000000-mapping.dmp
  • memory/2748-3-0x000000000046555E-mapping.dmp
  • memory/2748-6-0x0000000073A30000-0x000000007411E000-memory.dmp
    Filesize

    6.9MB

  • memory/2748-7-0x0000000000400000-0x000000000046A000-memory.dmp
    Filesize

    424KB

  • memory/2748-9-0x0000000004DB0000-0x0000000004DB1000-memory.dmp
    Filesize

    4KB

  • memory/2748-10-0x0000000005350000-0x0000000005351000-memory.dmp
    Filesize

    4KB

  • memory/2748-11-0x0000000005030000-0x0000000005031000-memory.dmp
    Filesize

    4KB

  • memory/2748-12-0x0000000005FA0000-0x0000000005FA1000-memory.dmp
    Filesize

    4KB

  • memory/2748-13-0x0000000006210000-0x0000000006211000-memory.dmp
    Filesize

    4KB

  • memory/2748-14-0x0000000005F90000-0x0000000005F91000-memory.dmp
    Filesize

    4KB

  • memory/3052-4-0x0000000000000000-mapping.dmp