Malicious PDF — malware analysis report

Static analysis result for SHA-256 902b1528c207870b…

MALICIOUS

PDF

41.9 KB Created: 2021-05-11 23:13:11 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-11-22
MD5: 0abf1350c6980cafbf71546d3cad35dc SHA-1: 2a0fbfa0303854e0bf8e1f8f18ead5913e4053bd SHA-256: 902b1528c207870b315e998d90433a1136a229b255e99e06c9c1edf30a7146b0
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains embedded links that redirect to malicious infrastructure, specifically promoting 'game hacks' and 'generators'. The presence of a download button lure and ML classification further supports its malicious nature. Although no scripts were explicitly extracted, the PDF structure and embedded URLs indicate a phishing or scam attempt, likely leading to further malware download or credential harvesting.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9971

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 https://netcdn.xyz/app/431946152/roblox-cheat-game-hack In PDF document text
    • http://library.apsidoarjo.ac.id/repository/free-mods-for-coin-master_GM406889139.pdfIn PDF document text
    • http://library.apsidoarjo.ac.id//repository/get-free-robux-no-verification_GM431946152.pdfIn PDF document text
    • http://library.apsidoarjo.ac.id//repository/free-coin-master-spins_GM406889139.pdfIn PDF document text
    • http://library.apsidoarjo.ac.id/repository/free-minecraft-server-hosting_GM479516143.pdfIn PDF document text
    • http://library.apsidoarjo.ac.id//repository/master-coin-hack_GM406889139.pdfIn PDF document text
    • http://library.apsidoarjo.ac.id//repository/how-to-get-free-robux-without-human-verification_GM431946152.pdfIn PDF document text
    • http://library.apsidoarjo.ac.id//repository/roblox-robux-hack-generator_GM431946152.pdfIn PDF document text
    • http://library.apsidoarjo.ac.id/repository/roblox-game-free-download_GM431946152.pdfIn PDF document text
    • http://library.apsidoarjo.ac.id//repository/free-robux-generator-com-roblox-hack_GM431946152.pdfIn PDF document text
    • http://library.apsidoarjo.ac.id//repository/wahoogaming-co-free-robux_GM431946152.pdfIn PDF document text
    • http://library.apsidoarjo.ac.id//repository/roblox-place-rewards_GM431946152.pdfIn PDF document text
    • http://library.apsidoarjo.ac.id//repository/legit-coin-master-hack-site-zyngaplayerforumscom_GM406889139.pdfIn PDF document text
    • http://library.apsidoarjo.ac.id//repository/can-you-get-minecraft-for-free-on-pc_GM479516143.pdfIn PDF document text
    • http://library.apsidoarjo.ac.id/repository/free-minecraft-client_GM479516143.pdfIn PDF document text
    • http://library.apsidoarjo.ac.id/repository/hack-to-get-free-spins-on-coin-master_GM406889139.pdfIn PDF document text
    • http://library.apsidoarjo.ac.id/repository/wizard-hacks_GM479516143.pdfIn PDF document text
    • http://library.apsidoarjo.ac.id//repository/free-minecraft-java-code_GM479516143.pdfIn PDF document text
    • http://library.apsidoarjo.ac.id//repository/legitimate-coin-master-free-spins-apk_GM406889139.pdfIn PDF document text
    • http://library.apsidoarjo.ac.id//repository/free-robux-no-human-verification-or-survey-or-download-2021_GM431946152.pdfIn PDF document text
    • http://library.apsidoarjo.ac.id//repository/free-robux-no-verification-or-survey-2021_GM431946152.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000047f1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x47F1 24876 bytes
SHA-256: a882bef98c62325c01b0bcb81c3d2554ebed03c0c9a429f969006705400ff310
font_01_sfnt_off00008123.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8123 18280 bytes
SHA-256: 98eeb43752f52f60f387912f8d519d04d2eb9110f2a162fc7878abe7cd109578

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