Malicious PDF — malware analysis report

Static analysis result for SHA-256 6413d0696515a15c…

MALICIOUS

PDF

35.4 KB Created: 2021-06-26 04:27:14 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-13
MD5: 7d5a02be3eb00313bd4cfb7b4f37a5b7 SHA-1: 6cb6e720b9234cc466be61a08722d720ecbe310b SHA-256: 6413d0696515a15c6acc569540aa6595a6b79541c54d96a52cc840d8c89e55a5
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple embedded URLs that redirect to known malicious infrastructure, masquerading as game hacks and generators. The document body and heuristics indicate a lure to download or access further malicious content, likely a second-stage payload. No scripts were extracted, but the PDF structure and URL analysis strongly suggest a phishing or redirection campaign.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

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.co/app/431946152/how-hack-roblox-accounts-2021-game-hack In PDF document text
    • http://perpus.polimarim.online/repository/roblox-mobile-hack_GM431946152.pdfIn PDF document text
    • http://perpus.polimarim.online/repository/roblox-gamepass-e-free_GM431946152.pdfIn PDF document text
    • http://perpus.polimarim.online/repository/free-robux-no-offers_GM431946152.pdfIn PDF document text
    • http://perpus.polimarim.online/repository/how-to-get-free-robux-without-verification-or-surveys_GM431946152.pdfIn PDF document text
    • http://perpus.polimarim.online/repository/roblox-hacks-and-cheats_GM431946152.pdfIn PDF document text
    • http://perpus.polimarim.online/repository/how-to-get-free-lua-executor-roblox_GM431946152.pdfIn PDF document text
    • http://perpus.polimarim.online/repository/free-coin-master-hacks-no-verification_GM406889139.pdfIn PDF document text
    • http://perpus.polimarim.online/repository/if-i-uninstall-minecraft-can-i-reinstall-it-for-free_GM479516143.pdfIn PDF document text
    • http://perpus.polimarim.online/repository/robuxy-com-free-robux_GM431946152.pdfIn PDF document text
    • http://perpus.polimarim.online/repository/coin-master-free-generator_GM406889139.pdfIn PDF document text
    • http://perpus.polimarim.online/repository/games-to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://perpus.polimarim.online/repository/free-h-robux-aniversery-giveaway_GM431946152.pdfIn PDF document text
    • http://perpus.polimarim.online/repository/get-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • http://perpus.polimarim.online/repository/obby-free-robux-2021_GM431946152.pdfIn PDF document text
    • http://perpus.polimarim.online/repository/roblox-admin-hacks-name_GM431946152.pdfIn PDF document text
    • http://perpus.polimarim.online/repository/roblox-promo-codes-free-robux_GM431946152.pdfIn PDF document text
    • http://perpus.polimarim.online/repository/free-robux-codes-2021-no-verification_GM431946152.pdfIn PDF document text
    • http://perpus.polimarim.online/repository/how-to-change-your-name-for-free-on-roblox_GM431946152.pdfIn PDF document text
    • http://perpus.polimarim.online/repository/how-to-evite-ban-roblox-hack_GM431946152.pdfIn PDF document text
    • http://perpus.polimarim.online/repository/minecraft-pe-free-download-ios-no-jailbreak_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_off00003185.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3185 22564 bytes
SHA-256: 56165e5f3923cda8d7c6c9d3da7b4eb4b05ffb434d460fededf1815a290a9231
font_01_sfnt_off000063f1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x63F1 19468 bytes
SHA-256: 9f065fbbb87ec77648ab6382ae6ec3096cd0b64684ec548caa3c183ea1ad9680

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