Malicious PDF — malware analysis report

Static analysis result for SHA-256 14644172bae5abe3…

MALICIOUS

PDF

33.5 KB Created: 2021-06-28 22:12:53 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-15
MD5: 1c527e19061cfd09523e478f5359f0e3 SHA-1: 88e30d820e079676acb483633f6ec6e5f5cf79cb SHA-256: 14644172bae5abe3aa840f17a48a42a25ca8baecc25826f470cfaf870cf62d6a
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links to redirector domains, masquerading as free game hacks and currency generators. These links, such as http://netcdn.co/app/431946152/dominus-rex-roblox-free-game-hack, are flagged as malicious and likely lead to further malicious content or phishing pages. The ML classifier also strongly indicated maliciousness.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9824

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/dominus-rex-roblox-free-game-hack In PDF document text
    • http://poltekkesbanten.ac.id/e-lib/repository/roblox-free-robux-no-verification_GM431946152.pdfIn PDF document text
    • http://poltekkesbanten.ac.id/e-lib/repository/fast-run-hack-roblox_GM431946152.pdfIn PDF document text
    • http://poltekkesbanten.ac.id/e-lib/repository/free-robux-by-robuxian_GM431946152.pdfIn PDF document text
    • http://poltekkesbanten.ac.id/e-lib/repository/god-mode-roblox-cheat-engine_GM431946152.pdfIn PDF document text
    • http://poltekkesbanten.ac.id/e-lib/repository/chisel-and-bits-mod-minecraft-pe_GM479516143.pdfIn PDF document text
    • http://poltekkesbanten.ac.id/e-lib/repository/how-to-get-robux-without-paying_GM431946152.pdfIn PDF document text
    • http://poltekkesbanten.ac.id/e-lib/repository/coin-master-free-spins-link-2021-march_GM406889139.pdfIn PDF document text
    • http://poltekkesbanten.ac.id/e-lib/repository/anti-speed-hack-script-undetected-roblox_GM431946152.pdfIn PDF document text
    • http://poltekkesbanten.ac.id/e-lib/repository/free-coin-master-account_GM406889139.pdfIn PDF document text
    • http://poltekkesbanten.ac.id/e-lib/repository/coin-master-free-spins-activegamer_GM406889139.pdfIn PDF document text
    • http://poltekkesbanten.ac.id/e-lib/repository/how-to-hack-roblox-accounts-2021_GM431946152.pdfIn PDF document text
    • http://poltekkesbanten.ac.id/e-lib/repository/free-megavore-roblox-dinsaure_GM431946152.pdfIn PDF document text
    • http://poltekkesbanten.ac.id/e-lib/repository/roblox-treasure-hunt-simulator-202120219-cheat_GM431946152.pdfIn PDF document text
    • http://poltekkesbanten.ac.id/e-lib/repository/free-ways-to-get-robux_GM431946152.pdfIn PDF document text
    • http://poltekkesbanten.ac.id/e-lib/repository/2021-free-robux-daily-website_GM431946152.pdfIn PDF document text
    • http://poltekkesbanten.ac.id/e-lib/repository/free-camera-roblox-studio_GM431946152.pdfIn PDF document text
    • http://poltekkesbanten.ac.id/e-lib/repository/free-robux-apk_GM431946152.pdfIn PDF document text
    • http://poltekkesbanten.ac.id/e-lib/repository/free-robux-generator-no-survey-no-download-no-password_GM431946152.pdfIn PDF document text
    • http://poltekkesbanten.ac.id/e-lib/repository/coin-master-free-spin-link-app_GM406889139.pdfIn PDF document text
    • http://poltekkesbanten.ac.id/e-lib/repository/roblox-headless-head-free_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_off00002bac.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2BAC 22656 bytes
SHA-256: dcd16085755ccaa86d1b0287c138d26a65ccf4fbffbc8b6a9f441279f2c67804
font_01_sfnt_off00005d7d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5D7D 19340 bytes
SHA-256: 2de7d0054f159faaf02d845652e70ea542bed0c81da97f597995103bd41c29c4

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