Malicious PDF — malware analysis report

Static analysis result for SHA-256 e480f4d984467544…

MALICIOUS

PDF

34.5 KB Created: 2021-07-05 23:03:36 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-14
MD5: ee02aa4b7f09b846f489cb38434c969c SHA-1: d7a243ce1e102e8a211b73fc113ecba7f5c60fb8 SHA-256: e480f4d984467544656da1f6251b1d6c5637e95e521f184e33acaf2f13c5b5bc
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

The PDF document contains links that redirect to known malicious infrastructure, specifically promoting 'game hacks' for platforms like Roblox. The heuristic 'PDF_GAME_HACK_REDIRECT_LURE' and 'PDF_MALICIOUS_REDIRECTOR_LINK' strongly indicate a phishing or scam attempt. The document body, though partially garbled, contains the malicious URL, reinforcing the lure. No scripts were extracted, but the presence of embedded URLs and the nature of the lure suggest an attempt to direct the user to a malicious site for potential exploitation or further 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.tw/app/431946152/roblox-hack-com-game-hack In PDF document text
    • http://library.unissula.ac.id/fk/repository/fake-hack-code-copy-and-paste-for-roblox_GM431946152.pdfIn PDF document text
    • http://library.unissula.ac.id/fe/repository/coin-coin-master-hack_GM406889139.pdfIn PDF document text
    • http://library.unissula.ac.id/fk/repository/coin-master-free-spin-ml_GM406889139.pdfIn PDF document text
    • http://library.unissula.ac.id/fe/repository/is-it-bad-to-hack-your-friend-roblox_GM431946152.pdfIn PDF document text
    • http://library.unissula.ac.id/fk/repository/com-roblox-hack_GM431946152.pdfIn PDF document text
    • http://library.unissula.ac.id/fe/repository/how-to-exploit-roblox_GM431946152.pdfIn PDF document text
    • http://library.unissula.ac.id/fk//repository/coin-master-hacker-club_GM406889139.pdfIn PDF document text
    • http://library.unissula.ac.id/fk/repository/como-hackear-coin-master-2021-espaol_GM406889139.pdfIn PDF document text
    • http://library.unissula.ac.id/fk/repository/adidas-in-roblox-free_GM431946152.pdfIn PDF document text
    • http://library.unissula.ac.id/fe/repository/coin-master-hack-apk-july-2021_GM406889139.pdfIn PDF document text
    • http://library.unissula.ac.id/fk/repository/coin-master-free-spins-2021-ios_GM406889139.pdfIn PDF document text
    • http://library.unissula.ac.id/fk/repository/how-to-hack-and-get-free-robux_GM431946152.pdfIn PDF document text
    • http://library.unissula.ac.id/fk/repository/how-to-hack-any-roblox-account-2021_GM431946152.pdfIn PDF document text
    • http://library.unissula.ac.id/fk/repository/free-minecraft-java-code_GM479516143.pdfIn PDF document text
    • http://library.unissula.ac.id/fk/repository/start-earning-free-robux-today_GM431946152.pdfIn PDF document text
    • http://library.unissula.ac.id/fe/repository/speed-hack-assassin-roblox-2021_GM431946152.pdfIn PDF document text
    • http://library.unissula.ac.id/fe/repository/roblox-scam_GM431946152.pdfIn PDF document text
    • http://library.unissula.ac.id/fk//repository/pubg-uc-generator-without-human-verification_GM1330123889.pdfIn PDF document text
    • http://library.unissula.ac.id/fk//repository/minecraft-ps4-free_GM479516143.pdfIn PDF document text
    • http://library.unissula.ac.id/fe/repository/coin-master-free-spins-link-quora_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_off00002ef7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2EF7 22812 bytes
SHA-256: 9eb0e778936baba9aa23f19f916005d5234932b053e9e48ae1b6245e21d3a6e2
font_01_sfnt_off0000621b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x621B 18916 bytes
SHA-256: 6d04b5b4db5b45e378875975e26f0e3af663697016fd07aaaf83c18ceb43a6ca

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