Malicious PDF — malware analysis report

Static analysis result for SHA-256 8f0963a77740d116…

MALICIOUS

PDF

35.3 KB Created: 2021-06-27 08:25:36 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-15
MD5: b8ada5a700b72560856828374eb9ed77 SHA-1: e1766b51c8f93484f31f0c1d5c572493cbb15f80 SHA-256: 8f0963a77740d116e8d209595157698a91fbea9cd4cbb2d56eca0dcb9be435f9
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.001 User Execution: Malicious Link

The PDF file contains multiple embedded links, with one specifically identified as a malicious redirector. The document body and heuristic firings indicate a lure for 'free game hacks' or generators, directing users to the malicious URL http://netcdn.co/app/431946152/adidas-roblox-free-game-hack. This suggests an attempt to trick users into visiting a potentially harmful site, likely for further exploitation or malware delivery.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

Heuristics 4

  • PDF links to a 'free generator / game hack' redirector critical 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. CRITICAL on its own: the /app/<id>/<slug>-game-hack path shape is unambiguous scam infra, and the host rotates so a host-list match can't be relied on.
  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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
  • 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/adidas-roblox-free-game-hack In PDF document text
    • https://elearning.ma-miftahussaadah.sch.id/__statics/gudangsoal/files/coin-master-free-spins-and-coins-for-today_GM406889139.pdfIn PDF document text
    • https://elearning.ma-miftahussaadah.sch.id/__statics/gudangsoal/files/youtube-how-to-hack-into-builders-club-on-roblox_GM431946152.pdfIn PDF document text
    • https://elearning.ma-miftahussaadah.sch.id/__statics/gudangsoal/files/roblox-fun-robux_GM431946152.pdfIn PDF document text
    • https://elearning.ma-miftahussaadah.sch.id/__statics/gudangsoal/files/hacking-apps-for-roblox_GM431946152.pdfIn PDF document text
    • https://elearning.ma-miftahussaadah.sch.id/__statics/gudangsoal/files/how-to-get-free-robux-without-verification-2021_GM431946152.pdfIn PDF document text
    • https://elearning.ma-miftahussaadah.sch.id/__statics/gudangsoal/files/admin-hacks-for-roblox-2021_GM431946152.pdfIn PDF document text
    • https://elearning.ma-miftahussaadah.sch.id/__statics/gudangsoal/files/coin-master-fan-hack_GM406889139.pdfIn PDF document text
    • https://elearning.ma-miftahussaadah.sch.id/__statics/gudangsoal/files/free-minecraft-realm-codes_GM479516143.pdfIn PDF document text
    • https://elearning.ma-miftahussaadah.sch.id/__statics/gudangsoal/files/roblox-free-sword-gear_GM431946152.pdfIn PDF document text
    • https://elearning.ma-miftahussaadah.sch.id/__statics/gudangsoal/files/coin-master-heaven-free-spins_GM406889139.pdfIn PDF document text
    • https://elearning.ma-miftahussaadah.sch.id/__statics/gudangsoal/files/free-spins-coin-master-facebook_GM406889139.pdfIn PDF document text
    • https://elearning.ma-miftahussaadah.sch.id/__statics/gudangsoal/files/coin-master-free-coins-and-spins_GM406889139.pdfIn PDF document text
    • https://elearning.ma-miftahussaadah.sch.id/__statics/gudangsoal/files/husky-1-million-free-robux_GM431946152.pdfIn PDF document text
    • https://elearning.ma-miftahussaadah.sch.id/__statics/gudangsoal/files/roblox-fashion-frenzy-free_GM431946152.pdfIn PDF document text
    • https://elearning.ma-miftahussaadah.sch.id/__statics/gudangsoal/files/free-robux-hack-promo-codes_GM431946152.pdfIn PDF document text
    • https://elearning.ma-miftahussaadah.sch.id/__statics/gudangsoal/files/how-to-get-minecraft-for-free-on-ipad_GM479516143.pdfIn PDF document text
    • https://elearning.ma-miftahussaadah.sch.id/__statics/gudangsoal/files/coin-master-free-spins-link-today-new-2021_GM406889139.pdfIn PDF document text
    • https://elearning.ma-miftahussaadah.sch.id/__statics/gudangsoal/files/minecraft-free-no-download_GM479516143.pdfIn PDF document text
    • https://elearning.ma-miftahussaadah.sch.id/__statics/gudangsoal/files/how-to-get-free-robux-hack-2021_GM431946152.pdfIn PDF document text
    • https://elearning.ma-miftahussaadah.sch.id/__statics/gudangsoal/files/how-to-generate-free-coin-master-spin_GM406889139.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_off0000319d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x319D 22828 bytes
SHA-256: 399ef370afb68e07522c4bb20020395d9034f400ce222ef800e6b88038d204ee
font_01_sfnt_off00006517.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6517 18944 bytes
SHA-256: 7da054de7d619b44f755318c7ce244148887c414f20e37570880f1e680ff32fa

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