Malicious PDF — malware analysis report

Static analysis result for SHA-256 2a82a5002fe977da…

MALICIOUS

PDF

35.0 KB Created: 2021-06-29 08:31:13 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-16
MD5: 9a0f60e55b163d19984c233397b64b42 SHA-1: d395a24c933818dc98cf4a6ffb99deb874788644 SHA-256: 2a82a5002fe977da2842afc7194a35691303949aabfb1e8214490bed8419d703
200 Risk Score

Malware Insights

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

The PDF document contains multiple embedded URLs, including one identified as a malicious redirector infrastructure. The document body and heuristics indicate a lure for game-related cheats or accounts, likely leading to a malicious download or phishing page. The presence of a visual download button and instructions for a password-protected archive suggest a multi-stage attack designed to bypass security controls.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

Heuristics 5

  • 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.
  • Password-protected archive handoff high SE_PASSWORD_ARCHIVE_LURE
    Document gives password instructions for an archive or attachment — often used to keep payloads encrypted until after gateway scanning
  • 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/479516143/free-minecraft-alt-accounts-game-hack In PDF document text
    • http://library.fk.upnvj.ac.id/repository/free-free-robux_GM431946152.pdfIn PDF document text
    • http://library.fk.upnvj.ac.id/repository/minecraft-windows-10-edition-free_GM479516143.pdfIn PDF document text
    • http://library.fk.upnvj.ac.id/repository/free-tiktok-likes_GM835599320.pdfIn PDF document text
    • http://library.fk.upnvj.ac.id/repository/roblox-free-bomb-jacket_GM431946152.pdfIn PDF document text
    • http://library.fk.upnvj.ac.id/repository/hello-neighbor-roblox-free-download_GM431946152.pdfIn PDF document text
    • http://library.fk.upnvj.ac.id/repository/how-to-get-free-robux-out-of-the-consule_GM431946152.pdfIn PDF document text
    • http://library.fk.upnvj.ac.id/repository/rainbow-path-roblox-hack_GM431946152.pdfIn PDF document text
    • http://library.fk.upnvj.ac.id/repository/get-unlimted-robux-for-free-new-hack-2021-roblox-working_GM431946152.pdfIn PDF document text
    • http://library.fk.upnvj.ac.id/repository/roblox-avatar-com_GM431946152.pdfIn PDF document text
    • http://library.fk.upnvj.ac.id/repository/lazyblocks-com-robux_GM431946152.pdfIn PDF document text
    • http://library.fk.upnvj.ac.id/repository/how-to-hack-into-your-roblox-account-without-the-password_GM431946152.pdfIn PDF document text
    • http://library.fk.upnvj.ac.id/repository/indidojoe-robux-hack_GM431946152.pdfIn PDF document text
    • http://library.fk.upnvj.ac.id/repository/free-robux-groupe_GM431946152.pdfIn PDF document text
    • http://library.fk.upnvj.ac.id/repository/how-to-hack-into-any-roblox-account-no-waiting_GM431946152.pdfIn PDF document text
    • http://library.fk.upnvj.ac.id/repository/coin-master-free-spins-and-coins-today-gift-reward_GM406889139.pdfIn PDF document text
    • http://library.fk.upnvj.ac.id/repository/free-minecraft-codes_GM479516143.pdfIn PDF document text
    • http://library.fk.upnvj.ac.id/repository/coin-master-apk-hack_GM406889139.pdfIn PDF document text
    • http://library.fk.upnvj.ac.id/repository/village-4-coin-master_GM406889139.pdfIn PDF document text
    • http://library.fk.upnvj.ac.id/repository/roblox-cheat-engine-2021-jailbreak_GM431946152.pdfIn PDF document text
    • http://library.fk.upnvj.ac.id/repository/roblox-murder-mystery-2-modded-free-admin_GM431946152.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_off00003450.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3450 22736 bytes
SHA-256: 8609be5bc86ea92986305217764967c6291186d2cdeaeb1c78705a56a642b7e4
font_01_sfnt_off0000669f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x669F 18212 bytes
SHA-256: a587ad5d7ccc78e3894402c93b871667a6b3b423df15bdaf3724955d5b668927

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