Malicious PDF — malware analysis report

Static analysis result for SHA-256 c9d64238fa4611ab…

MALICIOUS

PDF

35.6 KB Created: 2021-07-01 12:20:32 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-15
MD5: b8dab092f12a9b241753b7d557300966 SHA-1: dfdd3564b281b932b383f2395059ca3204623f02 SHA-256: c9d64238fa4611ab0138240a83cf57d40fb891ff326258effed765a7bd9b6103
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links that redirect to malicious infrastructure, specifically designed to lure users with promises of game hacks and free in-game currency. The primary redirector URL is http://netcdn.co/app/431946152/how-to-god-yourself-in-roblox-not-hack-game-hack, which then leads to further PDF lures hosted on stiepariperpus.web.id. This indicates a phishing or scam campaign aiming to exploit user interest in popular games.

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/how-to-god-yourself-in-roblox-not-hack-game-hack In PDF document text
    • http://stiepariperpus.web.id/sarjana/repository/roblox-drunk-walk-cheat-engine_GM431946152.pdfIn PDF document text
    • http://stiepariperpus.web.id/sarjana/repository/hacks-piano-roblox_GM431946152.pdfIn PDF document text
    • http://stiepariperpus.web.id/sarjana/repository/legit-coin-master-hack-october-2021_GM406889139.pdfIn PDF document text
    • http://stiepariperpus.web.id/sarjana/repository/promo-codes-for-free-robux_GM431946152.pdfIn PDF document text
    • http://stiepariperpus.web.id/sarjana//repository/how-to-hack-coin-master-facebook_GM406889139.pdfIn PDF document text
    • http://stiepariperpus.web.id/sarjana/repository/free-coin-master-spins-daily_GM406889139.pdfIn PDF document text
    • http://stiepariperpus.web.id/sarjana/repository/800-robux-for-free-roblox_GM431946152.pdfIn PDF document text
    • http://stiepariperpus.web.id/sarjana//repository/how-to-hack-coin-master-android_GM406889139.pdfIn PDF document text
    • http://stiepariperpus.web.id/sarjana/repository/2021-roblox-accounts-for-free_GM431946152.pdfIn PDF document text
    • http://stiepariperpus.web.id/sarjana/repository/free-coins-app-for-coin-master_GM406889139.pdfIn PDF document text
    • http://stiepariperpus.web.id/sarjana/repository/youtube-roblox-hack-by-roexploits_GM431946152.pdfIn PDF document text
    • http://stiepariperpus.web.id/sarjana/repository/roblox-how-to-get-free-robux-no-hack-2021_GM431946152.pdfIn PDF document text
    • http://stiepariperpus.web.id/sarjana/repository/coin-master-mod-apk-hack_GM406889139.pdfIn PDF document text
    • http://stiepariperpus.web.id/sarjana/repository/roblox-escape-games-free_GM431946152.pdfIn PDF document text
    • http://stiepariperpus.web.id/sarjana/repository/roblox-work-at-pizza-place-cheats_GM431946152.pdfIn PDF document text
    • http://stiepariperpus.web.id/sarjana/repository/how-to-get-your-hacked-roblox-account-back-without-email_GM431946152.pdfIn PDF document text
    • http://stiepariperpus.web.id/sarjana//repository/coin-master-reward-link-2021_GM406889139.pdfIn PDF document text
    • http://stiepariperpus.web.id/sarjana/repository/coin-master-village-cost_GM406889139.pdfIn PDF document text
    • http://stiepariperpus.web.id/sarjana//repository/free-roblox-avatar-ideas_GM431946152.pdfIn PDF document text
    • http://stiepariperpus.web.id/sarjana/repository/minecraft-app-store-free_GM479516143.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_off000033ad.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x33AD 22288 bytes
SHA-256: 4c5d8aba216553bba981ae67fcf9907f05883d21447b43b1006ac2da611715de
font_01_sfnt_off00006506.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6506 19400 bytes
SHA-256: 5704eabac5eae41c52914e610f3ccf7e26d040ed0a02e75c61c72bc4ebbfd99c

Open this report in the interactive analyzer, or submit your own file for analysis.