Malicious PDF — malware analysis report

Static analysis result for SHA-256 c8c09baabf53dea1…

MALICIOUS

PDF

36.4 KB Created: 2021-05-22 23:09:46 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 4d95b8510fac215b4593903fdf2ab066 SHA-1: a183a111ab388804d1e4ebacebcd49d34669aa75 SHA-256: c8c09baabf53dea1e3e47537757d941006df1d225e323ca7a25e7a8644c1e9e9
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

The PDF contains multiple links to malicious redirector infrastructure, disguised as 'game hacks' or 'free currency generators'. The document body explicitly mentions 'How To Hack Peoples Roblox Accounts' and includes a call to action to access a 'ROBLOX GENERATOR'. The primary malicious URL identified is https://netcdn.xyz/app/431946152/how-to-hack-peoples-roblox-accounts-game-hack, which is part of a known malicious redirector chain. While no scripts were explicitly extracted, the PDF structure and embedded links suggest an attempt to exploit vulnerabilities or trick the user into downloading further malicious content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9492

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/how-to-hack-peoples-roblox-accounts-game-hack In PDF document text
    • http://zarinnameh.ir/images/coin-master-links-to-free-spins_GM406889139.pdfIn PDF document text
    • http://zarinnameh.ir/images/free-spins-and-coins-on-coin-master_GM406889139.pdfIn PDF document text
    • http://zarinnameh.ir/images/minecraft-pe-015-0-apk-free-download_GM479516143.pdfIn PDF document text
    • http://zarinnameh.ir/images/free-robux-games-that-actually-work-2021_GM431946152.pdfIn PDF document text
    • http://zarinnameh.ir/images/free-minecraft-mods_GM479516143.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_off0000330b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x330B 25080 bytes
SHA-256: 096ce03e150a5f6b671877c0f97a1f661ec49089c7b6d9770f403aed334ab895
font_01_sfnt_off00006ac2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6AC2 18920 bytes
SHA-256: cd7407ef9aef6c4c50b1fdf01e763fd2e22944ade267215dee183f168e7b87f5

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