Malicious PDF — malware analysis report

Static analysis result for SHA-256 756730fdeb250fd7…

MALICIOUS

PDF

37.9 KB Created: 2021-05-21 18:10:15 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: df346d78edbe5992016f0065d643b306 SHA-1: d5f7634baf78cda1b83eeda3725fc053ddad86c1 SHA-256: 756730fdeb250fd7a74c9d375455c8c45c56306fd98cbed7e742b4d476cd4d7d
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 promises of free game hacks. The embedded URL 'https://netcdn.xyz/app/431946152/free-roblox-scripts-game-hack' is directly associated with a lure for game hacks. The presence of a visual download button further supports the deceptive nature of the document.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9407

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-roblox-scripts-game-hack In PDF document text
    • https://www.mrsz.ir/images/free-robux-only-username-no-human-verification_GM431946152.pdfIn PDF document text
    • https://www.mrsz.ir/images/synapse-roblox-free_GM431946152.pdfIn PDF document text
    • https://www.mrsz.ir/images/coin-master-free-spins-link-ios_GM406889139.pdfIn PDF document text
    • https://www.mrsz.ir/images/how-to-hack-roblox-for-robux_GM431946152.pdfIn PDF document text
    • https://www.mrsz.ir/images/free-outfits-roblox_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_off00002e60.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2E60 31016 bytes
SHA-256: 28280bfb1af9480093b7c58d53eac626e0c4e5552682ac2094213476514a847a
font_01_sfnt_off000072cd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x72CD 18348 bytes
SHA-256: a05e51cd539dd6b301b45f7fb58cd288955602bf3cc953f1dc3d411cb11e51a1

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