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Analysis

  • max time kernel
    157s
  • max time network
    162s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20230220-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20230220-enlocale:en-usos:windows10-2004-x64system
  • submitted
    05/05/2023, 20:44

General

  • Target

    Inquiry65621.exe

  • Size

    535KB

  • MD5

    24f71f1a4b23df2ec4a3b397c787f46b

  • SHA1

    e6bd139200d4514c9769cbd91bceace8b120d5c7

  • SHA256

    69e2e592529984388953e4cc8f782b96ff622fd05c29e455864408f8f6d1d275

  • SHA512

    4bd5f694bd180fb243ca985c9dd470095dd0bec004e6eb43ca9780600eebeab42736e03fe46e6f4029f09e985e5e04d35bec0c5d62b333ccfb7821e392c3b561

  • SSDEEP

    12288:oSnRKqnAok2N2THEWkbIyYvJ3F7Kwm5BVqy1V:rnPnhWHyYvJ3F7Kwi6o

Malware Config

Extracted

Family

snakekeylogger

Credentials

  • Protocol:
    smtp
  • Host:
    mail.thanhphuong.com.vn
  • Port:
    587
  • Username:
    [email protected]
  • Password:
    87IRKR4d

Signatures

  • Snake Keylogger

    Keylogger and Infostealer first seen in November 2020.

  • Snake Keylogger payload 1 IoCs
  • StormKitty

    StormKitty is an open source info stealer written in C#.

  • StormKitty payload 1 IoCs
  • Checks computer location settings 2 TTPs 1 IoCs

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

  • Reads user/profile data of web browsers 2 TTPs

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

  • Accesses Microsoft Outlook profiles 1 TTPs 3 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
  • Enumerates physical storage devices 1 TTPs

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

  • 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 3 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 11 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\Inquiry65621.exe
    "C:\Users\Admin\AppData\Local\Temp\Inquiry65621.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2068
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\BRwSVjIH" /XML "C:\Users\Admin\AppData\Local\Temp\tmpD3AB.tmp"
      2⤵
      • Creates scheduled task(s)
      PID:2232
    • C:\Users\Admin\AppData\Local\Temp\Inquiry65621.exe
      "{path}"
      2⤵
      • Accesses Microsoft Outlook profiles
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • outlook_office_path
      • outlook_win_path
      PID:1428

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\Inquiry65621.exe.log

    Filesize

    1KB

    MD5

    17573558c4e714f606f997e5157afaac

    SHA1

    13e16e9415ceef429aaf124139671ebeca09ed23

    SHA256

    c18db6aecad2436da4a63ff26af4e3a337cca48f01c21b8db494fe5ccc60e553

    SHA512

    f4edf13f05a0d142e4dd42802098c8c44988ee8869621a62c2b565a77c9a95857f636583ff8d6d9baa366603d98b9bfbf1fc75bc6f9f8f83c80cb1215b2941cc

  • C:\Users\Admin\AppData\Local\Temp\tmpD3AB.tmp

    Filesize

    1KB

    MD5

    2ba37946bcddfd6f243566cb67236ec8

    SHA1

    71e121a2b7c5b91207561630e8efbc603a808910

    SHA256

    2eae6d372cb285064d88fc87345759be2c18236924cc1ccb830dd0f2dd02ec8b

    SHA512

    58e1acc7e59ff195448dcc0d444189328e38e107de684278239acd79d1d14290c522bbf4b8e7e939a571c86fa65010068ffc11bbef74085f588e3840a2685f8c

  • memory/1428-150-0x0000000005360000-0x0000000005370000-memory.dmp

    Filesize

    64KB

  • memory/1428-149-0x0000000005360000-0x0000000005370000-memory.dmp

    Filesize

    64KB

  • memory/1428-146-0x0000000000400000-0x0000000000426000-memory.dmp

    Filesize

    152KB

  • memory/2068-139-0x0000000005440000-0x0000000005496000-memory.dmp

    Filesize

    344KB

  • memory/2068-133-0x00000000006E0000-0x000000000076C000-memory.dmp

    Filesize

    560KB

  • memory/2068-140-0x000000007EF00000-0x000000007EF10000-memory.dmp

    Filesize

    64KB

  • memory/2068-141-0x00000000053D0000-0x00000000053E0000-memory.dmp

    Filesize

    64KB

  • memory/2068-142-0x000000007EF00000-0x000000007EF10000-memory.dmp

    Filesize

    64KB

  • memory/2068-138-0x00000000051A0000-0x00000000051AA000-memory.dmp

    Filesize

    40KB

  • memory/2068-137-0x00000000053D0000-0x00000000053E0000-memory.dmp

    Filesize

    64KB

  • memory/2068-136-0x0000000005200000-0x0000000005292000-memory.dmp

    Filesize

    584KB

  • memory/2068-135-0x0000000005710000-0x0000000005CB4000-memory.dmp

    Filesize

    5.6MB

  • memory/2068-134-0x00000000050C0000-0x000000000515C000-memory.dmp

    Filesize

    624KB