Malicious PDF — malware analysis report

Static analysis result for SHA-256 2af8d213f55fe7a4…

MALICIOUS

PDF

33.4 KB Created: 2021-06-18 05:53:40 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-15
MD5: 4fe63eed40cfe4de874a5a98e1285608 SHA-1: b26d656792fcb216bfd5a2b54a71df28023ef3e8 SHA-256: 2af8d213f55fe7a454d7c3ebec6e41d9092f963744591b6e90ad97fc8e370f2a
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

This PDF document contains multiple embedded links that redirect to malicious infrastructure, specifically promoting 'free game hacks' and 'robux generators'. The heuristic firings confirm these links lead to known malicious redirectors and a lure for free game-related items. The document's primary function appears to be directing users to potentially harmful websites through social engineering.

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/sonic-shirt-roblox-free-game-hack In PDF document text
    • http://lib.fisipumt.ac.id/repository/comapp-trekfree-coin-spindaily-link-master_GM406889139.pdfIn PDF document text
    • http://lib.fisipumt.ac.id/repository/minecraft-toolbox-premium-apk_GM479516143.pdfIn PDF document text
    • http://lib.fisipumt.ac.id//repository/free-robux-just-click_GM431946152.pdfIn PDF document text
    • http://lib.fisipumt.ac.id//repository/roblox-fun-robux_GM431946152.pdfIn PDF document text
    • http://lib.fisipumt.ac.id//repository/coin-master-free-spins-11-01-2021_GM406889139.pdfIn PDF document text
    • http://lib.fisipumt.ac.id//repository/how-can-i-get-robux_GM431946152.pdfIn PDF document text
    • http://lib.fisipumt.ac.id//repository/coin-master-hack-without-human-verification_GM406889139.pdfIn PDF document text
    • http://lib.fisipumt.ac.id/repository/vip-roblox-hack_GM431946152.pdfIn PDF document text
    • http://lib.fisipumt.ac.id/repository/can-you-give-me-robux_GM431946152.pdfIn PDF document text
    • http://lib.fisipumt.ac.id/repository/hacks-for-roblox-prison-life_GM431946152.pdfIn PDF document text
    • http://lib.fisipumt.ac.id/repository/pokemon-go-free-online-download_GM1094591345.pdfIn PDF document text
    • http://lib.fisipumt.ac.id//repository/blox-land-free-robux_GM431946152.pdfIn PDF document text
    • http://lib.fisipumt.ac.id//repository/free-spins-promo-code-for-coin-master_GM406889139.pdfIn PDF document text
    • http://lib.fisipumt.ac.id//repository/boku-no-roblox-hack_GM431946152.pdfIn PDF document text
    • http://lib.fisipumt.ac.id/repository/free-robux-com-real_GM431946152.pdfIn PDF document text
    • http://lib.fisipumt.ac.id/repository/coin-master-mod-apk-2021_GM406889139.pdfIn PDF document text
    • http://lib.fisipumt.ac.id/repository/free-star-codes-roblox_GM431946152.pdfIn PDF document text
    • http://lib.fisipumt.ac.id/repository/coin-master-pc-hack_GM406889139.pdfIn PDF document text
    • http://lib.fisipumt.ac.id/repository/jailbreak-roblox-free_GM431946152.pdfIn PDF document text
    • http://lib.fisipumt.ac.id//repository/free-minecraft-survival-server_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_off00002cc2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2CC2 22068 bytes
SHA-256: a8b81b61d3200d8f06bd846bc6079ddf3f32d9a68e821ba3869c35188301b050
font_01_sfnt_off00005d9a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5D9A 19040 bytes
SHA-256: 1d5b60ca6a73f8a818ac089d5c69ef9f68027a42ea6d81da869a817d9ddc6f56

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