Analysis

  • max time kernel
    123s
  • max time network
    135s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20230703-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20230703-enlocale:en-usos:windows10-2004-x64system
  • submitted
    03/08/2023, 15:47

General

  • Target

    3399fc936d74594ca467f3e0224eba655e854ea064f0c11f311ce6c72f3dc009exe_JC.exe

  • Size

    563KB

  • MD5

    a3a0f7c65d064edfcb7e72361aacc6ab

  • SHA1

    ce1635ae1b2e9efb91030ed135069513d226c262

  • SHA256

    3399fc936d74594ca467f3e0224eba655e854ea064f0c11f311ce6c72f3dc009

  • SHA512

    9efd3fc52d4896247a2ba427bbcf156be6ab1ef68281d9af493a090d0ef01e2aa8d572d89028797fe3eeb99c5c367b1e69d0077039f471a69c36850c5195ad8a

  • SSDEEP

    6144:JEDeFkyh1E/65Q7nEbxFUPKpgr3UGwh1E/65Q7nEhe82wWMaYEYbxFUPKpgr3Ugs:WDeFSp0465c2Jc6Zeq91im6omxg

Malware Config

Extracted

Family

snakekeylogger

Credentials

Signatures

  • Snake Keylogger

    Keylogger and Infostealer first seen in November 2020.

  • Snake Keylogger payload 1 IoCs
  • Drops startup file 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.

  • 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
  • Suspicious behavior: EnumeratesProcesses 4 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 11 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\3399fc936d74594ca467f3e0224eba655e854ea064f0c11f311ce6c72f3dc009exe_JC.exe
    "C:\Users\Admin\AppData\Local\Temp\3399fc936d74594ca467f3e0224eba655e854ea064f0c11f311ce6c72f3dc009exe_JC.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:3384
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\Powershell.exe
      "Powershell.exe" -ExecutionPolicy Bypass -command Copy-Item 'C:\Users\Admin\AppData\Local\Temp\3399fc936d74594ca467f3e0224eba655e854ea064f0c11f311ce6c72f3dc009exe_JC.exe' 'C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\.exe'
      2⤵
      • Drops startup file
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:5012
    • C:\Users\Admin\AppData\Local\Temp\3399fc936d74594ca467f3e0224eba655e854ea064f0c11f311ce6c72f3dc009exe_JC.exe
      "C:\Users\Admin\AppData\Local\Temp\3399fc936d74594ca467f3e0224eba655e854ea064f0c11f311ce6c72f3dc009exe_JC.exe"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:4212

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

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        Downloads

        • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_k01ho5zj.jfo.ps1

          Filesize

          60B

          MD5

          d17fe0a3f47be24a6453e9ef58c94641

          SHA1

          6ab83620379fc69f80c0242105ddffd7d98d5d9d

          SHA256

          96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

          SHA512

          5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

        • memory/3384-133-0x0000000074550000-0x0000000074D00000-memory.dmp

          Filesize

          7.7MB

        • memory/3384-135-0x00000000051F0000-0x0000000005794000-memory.dmp

          Filesize

          5.6MB

        • memory/3384-136-0x0000000004C40000-0x0000000004CD2000-memory.dmp

          Filesize

          584KB

        • memory/3384-137-0x0000000004D80000-0x0000000004E1C000-memory.dmp

          Filesize

          624KB

        • memory/3384-138-0x0000000004EA0000-0x0000000004EB0000-memory.dmp

          Filesize

          64KB

        • memory/3384-134-0x0000000000130000-0x00000000001C4000-memory.dmp

          Filesize

          592KB

        • memory/3384-159-0x0000000074550000-0x0000000074D00000-memory.dmp

          Filesize

          7.7MB

        • memory/4212-171-0x0000000074550000-0x0000000074D00000-memory.dmp

          Filesize

          7.7MB

        • memory/4212-170-0x00000000063A0000-0x00000000063AA000-memory.dmp

          Filesize

          40KB

        • memory/4212-169-0x0000000006410000-0x00000000065D2000-memory.dmp

          Filesize

          1.8MB

        • memory/4212-160-0x0000000005450000-0x0000000005460000-memory.dmp

          Filesize

          64KB

        • memory/4212-158-0x0000000074550000-0x0000000074D00000-memory.dmp

          Filesize

          7.7MB

        • memory/4212-152-0x0000000000400000-0x0000000000424000-memory.dmp

          Filesize

          144KB

        • memory/5012-139-0x0000000004750000-0x0000000004786000-memory.dmp

          Filesize

          216KB

        • memory/5012-147-0x0000000005700000-0x0000000005766000-memory.dmp

          Filesize

          408KB

        • memory/5012-145-0x0000000005690000-0x00000000056F6000-memory.dmp

          Filesize

          408KB

        • memory/5012-144-0x0000000004E60000-0x0000000004E82000-memory.dmp

          Filesize

          136KB

        • memory/5012-143-0x0000000004EF0000-0x0000000005518000-memory.dmp

          Filesize

          6.2MB

        • memory/5012-161-0x0000000005CD0000-0x0000000005CEE000-memory.dmp

          Filesize

          120KB

        • memory/5012-162-0x0000000006F30000-0x0000000006FC6000-memory.dmp

          Filesize

          600KB

        • memory/5012-163-0x0000000006220000-0x000000000623A000-memory.dmp

          Filesize

          104KB

        • memory/5012-164-0x00000000062A0000-0x00000000062C2000-memory.dmp

          Filesize

          136KB

        • memory/5012-168-0x0000000074550000-0x0000000074D00000-memory.dmp

          Filesize

          7.7MB

        • memory/5012-142-0x00000000048B0000-0x00000000048C0000-memory.dmp

          Filesize

          64KB

        • memory/5012-141-0x00000000048B0000-0x00000000048C0000-memory.dmp

          Filesize

          64KB

        • memory/5012-140-0x0000000074550000-0x0000000074D00000-memory.dmp

          Filesize

          7.7MB