Malicious PDF — malware analysis report

Static analysis result for SHA-256 93bc2597295734c6…

MALICIOUS

PDF

31.4 KB Created: 2021-07-19 09:44:25 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 32fb9fa647a84b59090808e456b876ce SHA-1: e1c732ab14b538aed92dc046bce186e991965576 SHA-256: 93bc2597295734c6ce39ffce1bc1c43e489fdf7cf5ae866206c64bbc3cacdf8a
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links, including one identified as a malicious redirector pointing to a 'free Robux generator' lure. The document body explicitly mentions 'Hacks To Get Free Robux' and 'CLICK HERE TO ACCESS ROBUX GENERATOR', reinforcing the phishing pretext. While no scripts were directly extracted, the PDF structure and embedded links strongly suggest a social engineering attack aimed at redirecting users to potentially malicious content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9474

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/hacks-to-get-free-robux-game-hack In PDF document text
    • https://www.rawathandicrafts.com/uploaded_files/userfiles/files/how-to-get-minecraft-for-free-on-iphone_GM479516143.pdfIn PDF document text
    • https://www.rawathandicrafts.com/uploaded_files/userfiles/files/coin-master-daily-free-spin-app_GM406889139.pdfIn PDF document text
    • https://www.rawathandicrafts.com/uploaded_files/userfiles/files/free-minecraft-skin-packs_GM479516143.pdfIn PDF document text
    • https://www.rawathandicrafts.com/uploaded_files/userfiles/files/how-to-play-minecraft-for-free-on-pc_GM479516143.pdfIn PDF document text
    • https://www.rawathandicrafts.com/uploaded_files/userfiles/files/how-to-get-minecraft-pe-for-free_GM479516143.pdfIn PDF document text
    • https://www.rawathandicrafts.com/uploaded_files/userfiles/files/coin-master-daily-free-spins-and-coins_GM406889139.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_off00002541.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2541 22512 bytes
SHA-256: 61345ed944771ef3d7f5f0cf6e72ae9da5d7aeabcc670bdb780f2b82fc5c45e5
font_01_sfnt_off00005761.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5761 18700 bytes
SHA-256: bdc8e99d9ea86ba376637a879a21a019c14cea55b1de89ae0d751e78f755b63e

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