Malicious PDF — malware analysis report

Static analysis result for SHA-256 72f09790e3f302e3…

MALICIOUS

PDF

34.5 KB Created: 2021-07-03 20:14:10 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: fba387784c44851e7eaaed001180c728 SHA-1: 2d46fc7d62ff14377f5f8567ebf4b2ff1b7de6af SHA-256: 72f09790e3f302e37f1da62835f15d892fda16618396a3445a8de5487d3d7484
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document employs a lure related to game hacks and generators, specifically for 'Robux'. It contains a prominent link to a suspicious URL that likely hosts malicious content or further redirects. The ML classifier strongly indicated maliciousness, and the presence of external URIs and game hack lures supports this assessment. No scripts were extracted, but the document's structure and embedded links suggest a phishing or redirection attempt.

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/431946152/robux-generator-without-verification-game-hack PDF link annotation
    • https://ibelive.com.tw/image/data/files/hacking-apps-roblox_GM431946152.pdfIn PDF document text
    • https://ibelive.com.tw/image/data/files/roblox-hack-2021-no-verification_GM431946152.pdfIn PDF document text
    • https://ibelive.com.tw/image/data/files/how-to-get-anything-for-free-on-roblox-2021_GM431946152.pdfIn PDF document text
    • https://ibelive.com.tw/image/data/files/smart-lodhi-coin-master-hack_GM406889139.pdfIn PDF document text
    • https://ibelive.com.tw/image/data/files/free-robux-giveaway-no-human-verification_GM431946152.pdfIn PDF document text
    • https://ibelive.com.tw/image/data/files/unlimited-spin-coin-master-hack_GM406889139.pdfIn PDF document text
    • https://ibelive.com.tw/image/data/files/how-to-sell-clothes-for-free-on-roblox-place_GM431946152.pdfIn PDF document text
    • https://ibelive.com.tw/image/data/files/bloxawards-com-earn-free-robux_GM431946152.pdfIn PDF document text
    • https://ibelive.com.tw/image/data/files/claim-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • https://ibelive.com.tw/image/data/files/free-face-roblox-youtube_GM431946152.pdfIn PDF document text
    • https://ibelive.com.tw/image/data/files/fbchampion-com_GM406889139.pdfIn PDF document text
    • https://ibelive.com.tw/image/data/files/free-robux-without-verification-2021_GM431946152.pdfIn PDF document text
    • https://ibelive.com.tw/image/data/files/blogspot-coin-master_GM406889139.pdfIn PDF document text
    • https://ibelive.com.tw/image/data/files/orewards-com-free-robux_GM431946152.pdfIn PDF document text
    • https://ibelive.com.tw/image/data/files/coin-master-hack-ios-without-verification_GM406889139.pdfIn PDF document text
    • https://ibelive.com.tw/image/data/files/coin-master-free-spins-hack_GM406889139.pdfIn PDF document text
    • https://ibelive.com.tw/image/data/files/hack-coin-master-online-without-human-verification_GM406889139.pdfIn PDF document text
    • https://ibelive.com.tw/image/data/files/how-to-find-out-who-hacked-you-on-roblox_GM431946152.pdfIn PDF document text
    • https://ibelive.com.tw/image/data/files/roblox-galaxy-hack_GM431946152.pdfIn PDF document text
    • https://ibelive.com.tw/image/data/files/free-girl-roblox-accounts-2021_GM431946152.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_off00002ebf.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2EBF 22656 bytes
SHA-256: 1b913677d1cedab929caecc557f7f0fa1c9e37f6fd7d072eca907ffbe4539e44
font_01_sfnt_off00006129.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6129 19276 bytes
SHA-256: 128dc781028791df6bef372b82492d53ee10555b1aa15fee5127b4d2acfdd3f4