Malicious PDF — malware analysis report

Static analysis result for SHA-256 a6ecaff4041201b0…

MALICIOUS

PDF

34.7 KB Created: 2021-07-08 08:21:01 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: ddc1da5bc72038b7754541665d261fc0 SHA-1: 463eea4c165e6d07311cfb56b76bd8d53fc810d4 SHA-256: a6ecaff4041201b022c5ff40b9dc530d201697195aa7548f2d0ae80dcbfc90b4
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains a lure for game hacks and free in-game currency, directing users to a malicious URL. The ML classifier also flagged this PDF as malicious. The embedded link likely leads to a second-stage download or phishing page.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

Heuristics 4

  • PDF links to a 'free generator / game hack' redirector high PDF_GAME_HACK_REDIRECT_LURE
    PDF's clickable action targets a redirector of the form /app/<id>/<slug>-game-hack — the landing-page shape of a large SEO 'free spins / generator / game hack' lure family that funnels victims through rotating disposable hosts to a malware/scam payload. The multi-link variants also trip ML/link-farm rules; this catches the single-link variants that otherwise score clean.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • External URI info PDF_URI
    PDF contains an external URL action
  • Embedded URL info EMBEDDED_URL
    One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
    URL http://netcdn.tw/app/406889139/free-coins-and-spins-in-coin-master-game-hack PDF link annotation
    • http://www.ma-plast.hr/files/minecraft-java-code-free_GM479516143.pdfIn PDF document text
    • http://www.ma-plast.hr/files/coin-master-heaven-free-spins-link_GM406889139.pdfIn PDF document text
    • https://www.ma-plast.hr/files/minecraft-apk-download-v1-144-2-free_GM479516143.pdfIn PDF document text
    • http://www.ma-plast.hr/files/roblox-free-hat-pastebin_GM431946152.pdfIn PDF document text
    • http://www.ma-plast.hr/files/roblox-hack-robux-for-free_GM431946152.pdfIn PDF document text
    • https://www.ma-plast.hr/files/how-to-bypass-roblox-anti-cheat-engine_GM431946152.pdfIn PDF document text
    • http://www.ma-plast.hr/files/free-roblox-wings_GM431946152.pdfIn PDF document text
    • https://www.ma-plast.hr/files/minecraft-hack-2021_GM479516143.pdfIn PDF document text
    • http://www.ma-plast.hr/files/coin-master-tool-hack_GM406889139.pdfIn PDF document text
    • https://www.ma-plast.hr/files/roblox-stands-online-item-cheat_GM431946152.pdfIn PDF document text
    • http://www.ma-plast.hr/files/fev-10-roblox-hack_GM431946152.pdfIn PDF document text
    • https://www.ma-plast.hr/files/free-robux-no-scams-2021_GM431946152.pdfIn PDF document text
    • https://www.ma-plast.hr/files/best-roblox-shirt-software-for-free_GM431946152.pdfIn PDF document text
    • https://www.ma-plast.hr/files/minecraft-pe-free_GM479516143.pdfIn PDF document text
    • http://www.ma-plast.hr/files/wurst-client_GM479516143.pdfIn PDF document text
    • http://www.ma-plast.hr/files/roblox-its-free_GM431946152.pdfIn PDF document text
    • http://www.ma-plast.hr/files/free-roblox-card-codes-no-survey_GM431946152.pdfIn PDF document text
    • https://www.ma-plast.hr/files/how-to-hack-roblox-jailbreak-on-ipad_GM431946152.pdfIn PDF document text
    • http://www.ma-plast.hr/files/free-dominus-userscriptorg-roblox_GM431946152.pdfIn PDF document text
    • https://www.ma-plast.hr/files/minecraft-modded-client_GM479516143.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_002_off000031db.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x31DB 22812 bytes
SHA-256: 6188da71b6bf243eb7468b5061d09612dc52d811b9615ffae6cbc1cae29b1b24
font_01_sfnt_off000064db.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x64DB 18348 bytes
SHA-256: 3394dff2a2236ff5ebd01f8571ec2988f1167f0416feeddb65e6ed7fa563ded8