Malicious PDF — malware analysis report

Static analysis result for SHA-256 8a2f197ff4c32604…

MALICIOUS

PDF

42.0 KB Created: 2021-05-16 07:34:26 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-13
MD5: e385df1501ac452201535b27aa0b92cb SHA-1: 8d925d90f902380f00400d959d02c37aa669d6a4 SHA-256: 8a2f197ff4c32604218084ce35651adbb52d9806ac0da6af3699baabcc1c3d73
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple links to known malicious redirector infrastructure, specifically promoting 'game hacks' and 'free currency' lures. The document body and heuristics indicate a clear intent to drive users to these malicious URLs, likely for credential harvesting or further malware delivery. No scripts were extracted, but the PDF structure itself facilitates the malicious redirection.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9971

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/collect-robux-game-hack In PDF document text
    • https://wandpiraten.de/images/master-coin-free-link_GM406889139.pdfIn PDF document text
    • https://wandpiraten.de/images/free-spins-and-coins-coin-master_GM406889139.pdfIn PDF document text
    • https://wandpiraten.de/images/free-robux-generator-for-roblox-2021_GM431946152.pdfIn PDF document text
    • https://wandpiraten.de/images/how-to-play-minecraft-for-free-on-pc_GM479516143.pdfIn PDF document text
    • https://wandpiraten.de/images/free-roblox-website_GM431946152.pdfIn PDF document text
    • https://wandpiraten.de/images/free-roblox-accounts-with-robux-that-work-2021_GM431946152.pdfIn PDF document text
    • https://wandpiraten.de/images/coin-master-hack-xyz-download_GM406889139.pdfIn PDF document text
    • https://wandpiraten.de/images/www-robux_GM431946152.pdfIn PDF document text
    • https://wandpiraten.de/images/free-coins_GM406889139.pdfIn PDF document text
    • https://wandpiraten.de/images/apps-to-get-free-robux_GM431946152.pdfIn PDF document text
    • https://wandpiraten.de/images/roblox-fun-com-free-robux_GM431946152.pdfIn PDF document text
    • https://wandpiraten.de/images/roblox-hacked-com-2021_GM431946152.pdfIn PDF document text
    • https://wandpiraten.de/images/minecraft-servers-that-allow-hacks_GM479516143.pdfIn PDF document text
    • https://wandpiraten.de/images/freerobux-co_GM431946152.pdfIn PDF document text
    • https://wandpiraten.de/images/minecraft-free-download-windows_GM479516143.pdfIn PDF document text
    • https://wandpiraten.de/images/roblox-sign-in-free_GM431946152.pdfIn PDF document text
    • https://wandpiraten.de/images/how-to-get-free-robux-on-chromebook_GM431946152.pdfIn PDF document text
    • https://wandpiraten.de/images/ways-to-get-free-robux-2021_GM431946152.pdfIn PDF document text
    • https://wandpiraten.de/images/coin-master-hacks-no-downloading_GM406889139.pdfIn PDF document text
    • https://wandpiraten.de/images/how-to-hack-coin-master-with-lucky-patcher_GM406889139.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_off000049fe.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x49FE 24496 bytes
SHA-256: 0a3504004691b921f485b736a445ddbef7537f689d467dbb116dcfc5120ed725
font_01_sfnt_off0000824b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x824B 18028 bytes
SHA-256: 5566aad664b57d1015453abd94929acaa0573fe02b86d47318467b4f526b9da5

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