Malicious PDF — malware analysis report

Static analysis result for SHA-256 12b60dac91573347…

MALICIOUS

PDF

32.3 KB Created: 2021-07-01 19:04:40 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-17
MD5: 6e265c9676bf1d320cef955d53fa3e68 SHA-1: 593b401a2d69101794745e7576ce616d5055350a SHA-256: 12b60dac91573347b3c52fe8186f42a78f7a8db1d09ba242799d8d988dfe54c1
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document contains a prominent link disguised as a 'free generator / game hack' lure. The link, http://netcdn.co/app/431946152/free-roblox-intros-game-hack, redirects to a suspicious domain, indicating a phishing or malware distribution attempt. The ML classifier also flagged this PDF as malicious.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9824

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.co/app/431946152/free-roblox-intros-game-hack PDF link annotation
    • https://tnupacktour.com.tw/image/data/files/how-to-get-free-robux-easy_GM431946152.pdfIn PDF document text
    • https://tnupacktour.com.tw/image/data/files/master-coins-free_GM406889139.pdfIn PDF document text
    • https://tnupacktour.com.tw/image/data/files/pokemon-go-free-100-iv-cp-list_GM1094591345.pdfIn PDF document text
    • https://tnupacktour.com.tw/image/data/files/coin-master-daily-rewards_GM406889139.pdfIn PDF document text
    • https://tnupacktour.com.tw/image/data/files/how-to-walk-through-walls-in-roblox-hack_GM431946152.pdfIn PDF document text
    • https://tnupacktour.com.tw/image/data/files/roblox-com-cheats-for-money_GM431946152.pdfIn PDF document text
    • https://tnupacktour.com.tw/image/data/files/free-coins-and-spins-coin-master-2021_GM406889139.pdfIn PDF document text
    • https://tnupacktour.com.tw/image/data/files/free-minecraft-texture-packs-java_GM479516143.pdfIn PDF document text
    • https://tnupacktour.com.tw/image/data/files/www-roblox-com-robux-free_GM431946152.pdfIn PDF document text
    • https://tnupacktour.com.tw/image/data/files/is-roblox-free-to-download_GM431946152.pdfIn PDF document text
    • https://tnupacktour.com.tw/image/data/files/www-free-robux-com_GM431946152.pdfIn PDF document text
    • https://tnupacktour.com.tw/image/data/files/free-robux-no-email_GM431946152.pdfIn PDF document text
    • https://tnupacktour.com.tw/image/data/files/easiest-coin-master-hack_GM406889139.pdfIn PDF document text
    • https://tnupacktour.com.tw/image/data/files/roblox-free-stone-shirt_GM431946152.pdfIn PDF document text
    • https://tnupacktour.com.tw/image/data/files/coin-master-hacks-for-android_GM406889139.pdfIn PDF document text
    • https://tnupacktour.com.tw/image/data/files/lina-roblox-me-hackean-la-cuenta_GM431946152.pdfIn PDF document text
    • https://tnupacktour.com.tw/image/data/files/roblox-tix-factory-tycoon-hack_GM431946152.pdfIn PDF document text
    • https://tnupacktour.com.tw/image/data/files/com-hackear-roblox_GM431946152.pdfIn PDF document text
    • https://tnupacktour.com.tw/image/data/files/coin-master-hack-cydia_GM406889139.pdfIn PDF document text
    • https://tnupacktour.com.tw/image/data/files/free-roblox-accounts-with-robux-2021-august_GM431946152.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000029ab.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x29AB 22004 bytes
SHA-256: b591ec94b448c1ed0c9a456595ded630ed21e2fb5b3d91fc100e448cec367e2b
font_01_sfnt_off00005a44.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5A44 18752 bytes
SHA-256: 6bf376b09816765e402d515af924a62be3fa0c3e098cc2a2b1f733bb65ab6f85

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