Malicious PDF — malware analysis report

Static analysis result for SHA-256 ceed365e905062f6…

MALICIOUS

PDF

29.9 KB Created: 2021-07-19 11:45:01 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-14
MD5: dc041aa9ca4178803a382d5125b4ab27 SHA-1: da82543276b56d35d6b7dc241c6dfbaba6695c31 SHA-256: ceed365e905062f666038a89ee49f1877aa5142e4663d49e19759590d4be8529
130 Risk Score

Malware Insights

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

The PDF file contains embedded links that redirect to known malicious infrastructure, specifically advertising a 'free generator / game hack'. The document body also contains a call-to-action phrase 'CLICK HERE TO ACCESS MINECRAFT GENERATOR', reinforcing the lure. The primary IOC is the malicious redirector URL, which is likely used to deliver a secondary payload or phish for credentials.

Machine Learning

  • Nyx PDF Classifier clean score 0.0794

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/479516143/classic-minecraft-net-hacks-game-hack In PDF document text
    • https://mansurabaya-elearning.usmart.id/__statics/gudangsoal/files/how-to-get-robux-for-free-2021_GM431946152.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_off00002385.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2385 22344 bytes
SHA-256: 96f150eed55f57238150851a153ff280775170cb62b0f1e538db8b0d332b6bde
font_01_sfnt_off000054eb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x54EB 17812 bytes
SHA-256: 06eb0692cb0ff670c8084f221f19fc536b6b0c4a84b00058b05a05adc7fae17c

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