Malicious PDF — malware analysis report

Static analysis result for SHA-256 e9b92eb2bf8cc55a…

MALICIOUS

PDF

39.4 KB Created: 2021-05-30 13:17:14 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: ccad82dfc358ae90930ac1b2f6ac66fb SHA-1: db31b49a15a7fabf9a51737db4a7f4f64bd58e07 SHA-256: e9b92eb2bf8cc55a0dad368a95b88bfd2abd658a42d5b079bd7d375897b15c9a
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains a link that redirects to a 'free generator / game hack' lure, which is a common tactic for distributing malware. The presence of multiple links to similar scam-related content suggests a phishing or social engineering attempt to trick users into downloading a malicious payload. Although no scripts were explicitly extracted, the PDF structure and embedded links strongly indicate a malicious redirector workflow.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9978

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/free-robux-giveaway-game-hack In PDF document text
    • https://www.atuweawani.org/wp-content/uploads/fsqm-files/free-tiktok-likes-and-followers_GM835599320.pdfIn PDF document text
    • https://www.atuweawani.org/wp-content/uploads/fsqm-files/games-that-give-you-free-robux_GM431946152.pdfIn PDF document text
    • https://www.atuweawani.org/wp-content/uploads/fsqm-files/minecraft-for-free-on-phone_GM479516143.pdfIn PDF document text
    • https://www.atuweawani.org/wp-content/uploads/fsqm-files/how-to-get-free-robux-2021_GM431946152.pdfIn PDF document text
    • https://www.atuweawani.org/wp-content/uploads/fsqm-files/minecraft-on-computer-free_GM479516143.pdfIn PDF document text
    • https://www.atuweawani.org/wp-content/uploads/fsqm-files/how-do-u-get-free-robux_GM431946152.pdfIn PDF document text
    • https://www.atuweawani.org/wp-content/uploads/fsqm-files/how-to-get-free-minecraft-skins_GM479516143.pdfIn PDF document text
    • https://www.atuweawani.org/wp-content/uploads/fsqm-files/free-coins-coin-master-2021_GM406889139.pdfIn PDF document text
    • https://www.atuweawani.org/wp-content/uploads/fsqm-files/free-daily-spins-coin-master_GM406889139.pdfIn PDF document text
    • https://www.atuweawani.org/wp-content/uploads/fsqm-files/free-coin-master-spins-link_GM406889139.pdfIn PDF document text
    • https://www.atuweawani.org/wp-content/uploads/fsqm-files/rblx-gg-free-robux_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
stream_002_off00003986.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x3986 26680 bytes
SHA-256: bb1765d7ad3d2d9e98b111967b6398057ee172998c9153b6374f0e0b0ef8d653
font_01_sfnt_off000076e4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x76E4 18820 bytes
SHA-256: a907981f6338d23acda294c558170907db38f399f16fdb2ca0bc536a0b707f6d

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