Malicious PDF — malware analysis report

Static analysis result for SHA-256 7ba70408e3ba6dc2…

MALICIOUS

PDF

35.4 KB Created: 2021-07-08 23:53:17 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-18
MD5: 895a472522c738502cab6503e6a141e8 SHA-1: c31efdbeaa15aa1c62f526ebced7fd360238012f SHA-256: 7ba70408e3ba6dc295b27c93160f85c19ea238a7516dfa0b5118f085cdca8e3c
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document was flagged as malicious by an ML classifier. The file routes users through malicious redirector infrastructure and presents a deceptive download button. Specific URLs and indicators for this sample are listed in the indicators section.

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/479516143/minecraft-hack-client-18-9-game-hack PDF link annotation
    • https://elearning.ma-malnupusatmenes.sch.id/__statics/gudangsoal/files/how-do-you-get-free-roblox-money_GM431946152.pdfIn PDF document text
    • https://elearning.ma-malnupusatmenes.sch.id/__statics/gudangsoal/files/free-executors-for-roblox_GM431946152.pdfIn PDF document text
    • https://elearning.ma-malnupusatmenes.sch.id/__statics/gudangsoal/files/free-robux-today_GM431946152.pdfIn PDF document text
    • https://elearning.ma-malnupusatmenes.sch.id/__statics/gudangsoal/files/coin-master-daily-free-spins_GM406889139.pdfIn PDF document text
    • https://elearning.ma-malnupusatmenes.sch.id/__statics/gudangsoal/files/how-to-hack-coin-master-with-root_GM406889139.pdfIn PDF document text
    • https://elearning.ma-malnupusatmenes.sch.id/__statics/gudangsoal/files/download-coin-master-apk-hack_GM406889139.pdfIn PDF document text
    • https://elearning.ma-malnupusatmenes.sch.id/__statics/gudangsoal/files/coin-master-free-coins-2021_GM406889139.pdfIn PDF document text
    • https://elearning.ma-malnupusatmenes.sch.id/__statics/gudangsoal/files/free-spins-coin-master-links-app_GM406889139.pdfIn PDF document text
    • https://elearning.ma-malnupusatmenes.sch.id/__statics/gudangsoal/files/free-group-roblox_GM431946152.pdfIn PDF document text
    • https://elearning.ma-malnupusatmenes.sch.id/__statics/gudangsoal/files/i-got-hacked-on-roblox_GM431946152.pdfIn PDF document text
    • https://elearning.ma-malnupusatmenes.sch.id/__statics/gudangsoal/files/free-minecraft-server_GM479516143.pdfIn PDF document text
    • https://elearning.ma-malnupusatmenes.sch.id/__statics/gudangsoal/files/minecraft-pe-hack-client-2021_GM479516143.pdfIn PDF document text
    • https://elearning.ma-malnupusatmenes.sch.id/__statics/gudangsoal/files/hacks-for-roblox-jailbreak_GM431946152.pdfIn PDF document text
    • https://elearning.ma-malnupusatmenes.sch.id/__statics/gudangsoal/files/best-hack-for-coin-master-2021_GM406889139.pdfIn PDF document text
    • https://elearning.ma-malnupusatmenes.sch.id/__statics/gudangsoal/files/roblox-free-roblox_GM431946152.pdfIn PDF document text
    • https://elearning.ma-malnupusatmenes.sch.id/__statics/gudangsoal/files/claim-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • https://elearning.ma-malnupusatmenes.sch.id/__statics/gudangsoal/files/how-do-u-get-robux_GM431946152.pdfIn PDF document text
    • https://elearning.ma-malnupusatmenes.sch.id/__statics/gudangsoal/files/who-to-get-free-robux_GM431946152.pdfIn PDF document text
    • https://elearning.ma-malnupusatmenes.sch.id/__statics/gudangsoal/files/free-roblox-scripts_GM431946152.pdfIn PDF document text
    • https://elearning.ma-malnupusatmenes.sch.id/__statics/gudangsoal/files/minecraft-java-edition-code-free_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
font_00_sfnt_off000033b2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x33B2 22800 bytes
SHA-256: 958b8e1422da0d620006300af5fd04b84aeebd2660975f629904418644c86f7f
font_01_sfnt_off000066ce.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x66CE 18580 bytes
SHA-256: 0f0b7e9792ce03a46f62115315cf89ce6201b0b871525563214e7880f5cc0e45

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