Analysis

  • max time kernel
    149s
  • max time network
    151s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    27-11-2024 05:43

General

  • Target

    ORDER-2411250089.PDF.js

  • Size

    1.7MB

  • MD5

    06bf8ca73f44aa2aec54c41c4c20d3d3

  • SHA1

    9862b9785b61b42dc8fef4e3ecb8319e2d7c7710

  • SHA256

    d0ecdf88e56cae4a5c2c759246b97163beb6f63023593a1aee00ee896efe6a16

  • SHA512

    84366dd9a5324d8fe98d31383dc13ae52c5a72600afafc1e396416f2b34c6a42db7b09e8571bab343fb894aa7e7b69afcb5542eb8f5f411b570d343288ddd6e8

  • SSDEEP

    24576:AuzJmDrkb8kjVaj3cWZUYUNa/US5ZZ2BsiH8pM0:1JmDrkAk9jk/UPd8B

Malware Config

Extracted

Credentials

  • Protocol:
    smtp
  • Host:
    smtp.gmail.com
  • Port:
    587
  • Username:
    [email protected]
  • Password:
    nbwz jvfz fmek ghid

Extracted

Family

snakekeylogger

Credentials

  • Protocol:
    smtp
  • Host:
    smtp.gmail.com
  • Port:
    587
  • Username:
    [email protected]
  • Password:
    nbwz jvfz fmek ghid

Extracted

Family

wshrat

C2

http://185.17.40.142:5086

Signatures

  • Snake Keylogger

    Keylogger and Infostealer first seen in November 2020.

  • Snake Keylogger payload 1 IoCs
  • Snakekeylogger family
  • WSHRAT

    WSHRAT is a variant of Houdini worm and has vbs and js variants.

  • Wshrat family
  • Blocklisted process makes network request 29 IoCs
  • Checks computer location settings 2 TTPs 3 IoCs

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

  • Drops startup file 2 IoCs
  • Executes dropped EXE 4 IoCs
  • 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 3 TTPs

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

  • Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs
  • Adds Run key to start application 2 TTPs 4 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
  • Command and Scripting Interpreter: JavaScript 1 TTPs
  • Enumerates physical storage devices 1 TTPs

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

  • System Location Discovery: System Language Discovery 1 TTPs 2 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

  • Modifies registry class 1 IoCs
  • Script User-Agent 29 IoCs

    Uses user-agent string associated with script host/environment.

  • Suspicious behavior: EnumeratesProcesses 12 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 23 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Windows\system32\wscript.exe
    wscript.exe C:\Users\Admin\AppData\Local\Temp\ORDER-2411250089.PDF.js
    1⤵
    • Checks computer location settings
    • Modifies registry class
    • Suspicious use of WriteProcessMemory
    PID:1520
    • C:\Windows\System32\WScript.exe
      "C:\Windows\System32\WScript.exe" "C:\Users\Admin\AppData\Local\Temp\word.js"
      2⤵
      • Checks computer location settings
      • Drops startup file
      • Adds Run key to start application
      • Suspicious use of WriteProcessMemory
      PID:2920
      • C:\Windows\System32\wscript.exe
        "C:\Windows\System32\wscript.exe" //B "C:\Users\Admin\AppData\Roaming\word.js"
        3⤵
        • Blocklisted process makes network request
        • Drops startup file
        • Adds Run key to start application
        PID:3208
    • C:\Windows\System32\WScript.exe
      "C:\Windows\System32\WScript.exe" "C:\Users\Admin\AppData\Local\Temp\svchost.js"
      2⤵
      • Checks computer location settings
      • Suspicious use of WriteProcessMemory
      PID:220
      • C:\Users\Admin\AppData\Local\Temp\Hvwjy.exe
        "C:\Users\Admin\AppData\Local\Temp\Hvwjy.exe"
        3⤵
        • Executes dropped EXE
        • Suspicious use of SetThreadContext
        • System Location Discovery: System Language Discovery
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of WriteProcessMemory
        PID:1608
        • C:\Users\Admin\AppData\Local\Temp\Hvwjy.exe
          "C:\Users\Admin\AppData\Local\Temp\Hvwjy.exe"
          4⤵
          • Executes dropped EXE
          PID:4704
        • C:\Users\Admin\AppData\Local\Temp\Hvwjy.exe
          "C:\Users\Admin\AppData\Local\Temp\Hvwjy.exe"
          4⤵
          • Executes dropped EXE
          PID:1824
        • C:\Users\Admin\AppData\Local\Temp\Hvwjy.exe
          "C:\Users\Admin\AppData\Local\Temp\Hvwjy.exe"
          4⤵
          • Executes dropped EXE
          • Accesses Microsoft Outlook profiles
          • System Location Discovery: System Language Discovery
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          • Suspicious use of SetWindowsHookEx
          • outlook_office_path
          • outlook_win_path
          PID:3988

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

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

    Filesize

    1KB

    MD5

    8ec831f3e3a3f77e4a7b9cd32b48384c

    SHA1

    d83f09fd87c5bd86e045873c231c14836e76a05c

    SHA256

    7667e538030e3f8ce2886e47a01af24cb0ea70528b1e821c5d8832c5076cb982

    SHA512

    26bffa2406b66368bd412bf25869a792631455645992cdcade2dbc13a2e56fb546414a6a9223b94c96c38d89187add6678d4779a88b38b0c9e36be8527b213c3

  • C:\Users\Admin\AppData\Local\Temp\Hvwjy.exe

    Filesize

    706KB

    MD5

    e1500a569b0f034f24d558f661d129c9

    SHA1

    6f2448b29980d1121df22d7699d2cd68cc88f736

    SHA256

    580ca5b59e248df91a65a54560d314869dd38b9858628a1a3ebac29863f06674

    SHA512

    f80f13fbb632fc21f0008082fe886a12c7409d9ac5a9b9fcfea61bd18b1a9044450e96ee8cd029f1145e687e74088a84df1e80e29648f13a698680f97e366f66

  • C:\Users\Admin\AppData\Local\Temp\svchost.js

    Filesize

    962KB

    MD5

    0fb453466a45c5ed5a9de568d786d5a6

    SHA1

    c12835633e6ade4133c855b2ed2468588771f0e2

    SHA256

    dd448c5bfacedd7d7e25b35a5802ed6aebf5ac07676dc47178b11b831119bb7a

    SHA512

    2c11139c2343adff8a985d4268dc4ac367848140548ca4730e3064897e4eda92a6f4787747686d5da20b50ffdf9928e3da0107da8af7035c4a4e7b18c666866e

  • C:\Users\Admin\AppData\Local\Temp\word.js

    Filesize

    283KB

    MD5

    c4951435e2094fc38024666feecf15c5

    SHA1

    72f5d95a873daaabbc3a71e363aca9394b017a70

    SHA256

    68af64912a0e81ab0576ec5e5e5317a345e2cd692312a3e31262058ecfcfaa66

    SHA512

    d8ed79f874661d4ad085cf8e3721c002755fb2cc0a14cb726f9edd9a7e00cf8308cc89676f61b4165c6ddf25368582403744cef8a646a6981f5a8c8682af0e4b

  • memory/1608-29-0x0000000005AD0000-0x0000000005B6C000-memory.dmp

    Filesize

    624KB

  • memory/1608-27-0x0000000005820000-0x00000000058B2000-memory.dmp

    Filesize

    584KB

  • memory/1608-26-0x0000000005CF0000-0x0000000006294000-memory.dmp

    Filesize

    5.6MB

  • memory/1608-28-0x00000000059E0000-0x00000000059EA000-memory.dmp

    Filesize

    40KB

  • memory/1608-30-0x0000000005C20000-0x0000000005C3C000-memory.dmp

    Filesize

    112KB

  • memory/1608-33-0x0000000007240000-0x00000000072AC000-memory.dmp

    Filesize

    432KB

  • memory/1608-25-0x0000000000D80000-0x0000000000E32000-memory.dmp

    Filesize

    712KB

  • memory/3988-38-0x0000000000400000-0x0000000000426000-memory.dmp

    Filesize

    152KB

  • memory/3988-44-0x00000000065C0000-0x0000000006610000-memory.dmp

    Filesize

    320KB

  • memory/3988-45-0x00000000067E0000-0x00000000069A2000-memory.dmp

    Filesize

    1.8MB