Analysis

  • max time kernel
    149s
  • max time network
    153s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240226-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
  • submitted
    25-03-2024 04:25

General

  • Target

    dd3a52585c2603476b5fb647d3b6bbce.exe

  • Size

    1.1MB

  • MD5

    dd3a52585c2603476b5fb647d3b6bbce

  • SHA1

    fa151caa6c0f905c046dd94512807bb29fdb3fb9

  • SHA256

    64c9a9351771d678aa64e80453e7310b25b48458d64f7e34d98a36a2084bfe0e

  • SHA512

    8c91de0a2e6faf47cca410337015123fddc9909c28cfc760ad998faefc822bd7cf0cca43633017faabe0921a6205d3a1ef86eed0630d887a5c911f728d90ad22

  • SSDEEP

    24576:/kwOsBgo0q4wMMBmCmTOUd+L6k5XWuZB6gQ0AnQK7cKRe:8xoHMUmCm6Ud+z5XhZCQKfRe

Malware Config

Extracted

Family

snakekeylogger

Credentials

Signatures

  • Snake Keylogger

    Keylogger and Infostealer first seen in November 2020.

  • Snake Keylogger payload 1 IoCs
  • CustAttr .NET packer 1 IoCs

    Detects CustAttr .NET packer in memory.

  • Checks computer location settings 2 TTPs 1 IoCs

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

  • 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
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s).

  • Program crash 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 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 11 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\dd3a52585c2603476b5fb647d3b6bbce.exe
    "C:\Users\Admin\AppData\Local\Temp\dd3a52585c2603476b5fb647d3b6bbce.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:4352
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\ktcwlvfGb" /XML "C:\Users\Admin\AppData\Local\Temp\tmp2507.tmp"
      2⤵
      • Creates scheduled task(s)
      PID:4708
    • C:\Users\Admin\AppData\Local\Temp\dd3a52585c2603476b5fb647d3b6bbce.exe
      "C:\Users\Admin\AppData\Local\Temp\dd3a52585c2603476b5fb647d3b6bbce.exe"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2200
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 2200 -s 1780
        3⤵
        • Program crash
        PID:1680
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 2200 -ip 2200
    1⤵
      PID:1836

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\dd3a52585c2603476b5fb647d3b6bbce.exe.log

      Filesize

      1KB

      MD5

      17573558c4e714f606f997e5157afaac

      SHA1

      13e16e9415ceef429aaf124139671ebeca09ed23

      SHA256

      c18db6aecad2436da4a63ff26af4e3a337cca48f01c21b8db494fe5ccc60e553

      SHA512

      f4edf13f05a0d142e4dd42802098c8c44988ee8869621a62c2b565a77c9a95857f636583ff8d6d9baa366603d98b9bfbf1fc75bc6f9f8f83c80cb1215b2941cc

    • C:\Users\Admin\AppData\Local\Temp\tmp2507.tmp

      Filesize

      1KB

      MD5

      f7356cf7f84a3bc777778af3b007776d

      SHA1

      c5a2ca2cfdd7735ede9c899b0ee6588f3d5b0b9e

      SHA256

      dbea9af92552835cbe03c826c634c45f64bce7ee4faee7d35acc391be9209649

      SHA512

      c3ed5e8fdd9faef86edc58389ab13a3cbcbf06ffa08661717fcf2ef01e473a0f47577a211d983ac58d35a0f35a33333e4c3de94d2300045a491278ce373e0c0e

    • memory/2200-24-0x0000000074FC0000-0x0000000075770000-memory.dmp

      Filesize

      7.7MB

    • memory/2200-23-0x0000000005850000-0x0000000005860000-memory.dmp

      Filesize

      64KB

    • memory/2200-22-0x0000000074FC0000-0x0000000075770000-memory.dmp

      Filesize

      7.7MB

    • memory/2200-18-0x0000000000400000-0x0000000000424000-memory.dmp

      Filesize

      144KB

    • memory/4352-5-0x0000000005AA0000-0x0000000005AB0000-memory.dmp

      Filesize

      64KB

    • memory/4352-6-0x0000000005810000-0x000000000581A000-memory.dmp

      Filesize

      40KB

    • memory/4352-8-0x0000000005860000-0x0000000005872000-memory.dmp

      Filesize

      72KB

    • memory/4352-9-0x0000000074FC0000-0x0000000075770000-memory.dmp

      Filesize

      7.7MB

    • memory/4352-10-0x0000000005AA0000-0x0000000005AB0000-memory.dmp

      Filesize

      64KB

    • memory/4352-11-0x0000000006690000-0x00000000066FE000-memory.dmp

      Filesize

      440KB

    • memory/4352-12-0x0000000007140000-0x000000000716A000-memory.dmp

      Filesize

      168KB

    • memory/4352-7-0x0000000005AB0000-0x0000000005B06000-memory.dmp

      Filesize

      344KB

    • memory/4352-0-0x0000000000C50000-0x0000000000D72000-memory.dmp

      Filesize

      1.1MB

    • memory/4352-4-0x00000000058E0000-0x0000000005972000-memory.dmp

      Filesize

      584KB

    • memory/4352-21-0x0000000074FC0000-0x0000000075770000-memory.dmp

      Filesize

      7.7MB

    • memory/4352-3-0x0000000005DF0000-0x0000000006394000-memory.dmp

      Filesize

      5.6MB

    • memory/4352-2-0x0000000005730000-0x00000000057CC000-memory.dmp

      Filesize

      624KB

    • memory/4352-1-0x0000000074FC0000-0x0000000075770000-memory.dmp

      Filesize

      7.7MB