Malicious PDF — malware analysis report

Static analysis result for SHA-256 0581e1566479659b…

MALICIOUS

PDF

37.3 KB Created: 2021-05-21 04:08:22 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 015d704bf77f691faba3de6bb11297bb SHA-1: 6a89629fe0f6bdb9bc22059c95492a6016952248 SHA-256: 0581e1566479659bf5c610596400622fdee7ebdadca3db20bd5455dfecc61ae0
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple links to known malicious redirectors and lures users with 'free generator' or 'game hack' themes. The document body and embedded artifacts suggest an attempt to disguise the malicious links. The primary malicious URL identified is https://netcdn.xyz/app/835599320/is-tiktok-free-game-hack, which is likely used to deliver a second-stage payload.

Machine Learning

  • Nyx PDF Classifier malicious score 0.7010

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/835599320/is-tiktok-free-game-hack In PDF document text
    • http://agritrade-ukraine.com/images/coin-master-free-spins_GM406889139.pdfIn PDF document text
    • http://agritrade-ukraine.com/images/websites-to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://agritrade-ukraine.com/images/where-can-i-get-free-spins-for-coin-master_GM406889139.pdfIn PDF document text
    • http://agritrade-ukraine.com/images/client-minecraft_GM479516143.pdfIn PDF document text
    • http://agritrade-ukraine.com/images/www-bandicam-com-free-robux_GM431946152.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_002_off00002fdd.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x2FDD 24488 bytes
SHA-256: 58fd7994d827a2a58dd5fc71cc050ec37ff9fe9192aa9b319e57a50c7ec43bc3
font_01_sfnt_off0000684c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x684C 3000 bytes
SHA-256: 56ee3cf210babcab1d595ec3cc7d666f7a646b8ea00ab1e6563ebd84f84582f8
font_02_sfnt_off000072ac.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x72AC 17456 bytes
SHA-256: 9ac98d03116b0178d2440c8519b51994e916559904e102c6f95e7069a9c516c8

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