Analysis

  • max time kernel
    151s
  • max time network
    169s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220414-en
  • submitted
    12/07/2022, 08:12

General

  • Target
    4bb3b44e6bdf5dcb41162b241449ab01.exe
  • Size 793KB
  • Sample220712-j3tztscce8
  • SHA256 64ef1f3617be869ae5492ff2fb24a461ffef5000cb22a081d85e767ff6ff7f5f
  • MD5 SHA1 SHA512

Malware Config

Extracted

Family
  • snakekeylogger

Credentials
C2
  • https://api.telegram.org/bot5321688653:AAEI2yqGrOA_-sRZ3xaqutrexraSgFa0AnA/sendMessage?chat_id=5048077662

Signatures

  • Snake Keylogger

    Keylogger and Infostealer first seen in November 2020.

  • Snake Keylogger payload 1 IoCs
  • 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
  • Program crash 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 8 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\4bb3b44e6bdf5dcb41162b241449ab01.exe
    "C:\Users\Admin\AppData\Local\Temp\4bb3b44e6bdf5dcb41162b241449ab01.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:4876
    • C:\Users\Admin\AppData\Local\Temp\4bb3b44e6bdf5dcb41162b241449ab01.exe
      "C:\Users\Admin\AppData\Local\Temp\4bb3b44e6bdf5dcb41162b241449ab01.exe"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2232
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 4876 -s 1456
      2⤵
      • Program crash
      PID:2620
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 412 -p 4876 -ip 4876
    1⤵
      PID:4512

    Network

          MITRE ATT&CK Matrix

          Replay Monitor

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          Downloads

          4bb3b44e6bdf5dcb41162b241449ab01.exe.log

          • Path C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\4bb3b44e6bdf5dcb41162b241449ab01.exe.log
          • Size 1KB
          • SHA256 a75686eed807c36b056311dddc898582fd4063135fc5728d2bdd3c6e1f5ab688
          • MD5 SHA1 SHA512

          memory/2232-137-0x0000000000400000-0x0000000000426000-memory.dmp

          memory/4876-130-0x0000000000050000-0x000000000011C000-memory.dmp

          memory/4876-131-0x0000000005100000-0x00000000056A4000-memory.dmp

          memory/4876-132-0x0000000004B50000-0x0000000004BE2000-memory.dmp

          memory/4876-133-0x0000000004AD0000-0x0000000004ADA000-memory.dmp

          memory/4876-134-0x0000000008440000-0x00000000084DC000-memory.dmp

          memory/4876-135-0x0000000000AF0000-0x0000000000B56000-memory.dmp