Malicious PDF — malware analysis report

Static analysis result for SHA-256 384204374dfebb56…

MALICIOUS

PDF

35.6 KB Created: 2021-06-29 03:54:34 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-15
MD5: 01248dc00e911c9c0e0fd38f3a355d2d SHA-1: 00a9a967347452f2f089bbcd14d9216ca7275a8c SHA-256: 384204374dfebb56fc69e33c394e151a0eb77fb04ebaa78ef6b41fabbe51c6a6
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple links to a known malicious redirector infrastructure, specifically promoting 'game hacks' and 'free generators' for popular games like Roblox. The document body and heuristics confirm the presence of these lures, indicating an attempt to trick users into visiting malicious sites. While no scripts were explicitly extracted, the nature of the links suggests a potential for further malicious activity, such as downloading additional payloads or leading to phishing pages.

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-to-hack-roblox-jailbreak-on-ios-game-hack In PDF document text
    • http://digilibfisip.uwks.ac.id/repository/free-outfits-for-roblox_GM431946152.pdfIn PDF document text
    • http://digilibfisip.uwks.ac.id/repository/admin-roblox-free-admin-commands_GM431946152.pdfIn PDF document text
    • http://digilibfisip.uwks.ac.id/repository/brown-hair-roblox-free_GM431946152.pdfIn PDF document text
    • http://digilibfisip.uwks.ac.id/repository/free-robux-games-on-roblox_GM431946152.pdfIn PDF document text
    • http://digilibfisip.uwks.ac.id/repository/hack-followers-roblox_GM431946152.pdfIn PDF document text
    • http://digilibfisip.uwks.ac.id/repository/how-to-cheat-roblox-money_GM431946152.pdfIn PDF document text
    • http://digilibfisip.uwks.ac.id/repository/free-shoulder-pets-roblox_GM431946152.pdfIn PDF document text
    • http://digilibfisip.uwks.ac.id/repository/robux-hack-codes-2021_GM431946152.pdfIn PDF document text
    • http://digilibfisip.uwks.ac.id/repository/how-to-change-roblox-name-free_GM431946152.pdfIn PDF document text
    • http://digilibfisip.uwks.ac.id/repository/roblox-cheat-engine-table-08-2021_GM431946152.pdfIn PDF document text
    • http://digilibfisip.uwks.ac.id/repository/bypass-roblox-chat-filter-hack_GM431946152.pdfIn PDF document text
    • http://digilibfisip.uwks.ac.id/repository/free-robux-khaos_GM431946152.pdfIn PDF document text
    • http://digilibfisip.uwks.ac.id/repository/minecraft-redeem-code-free_GM479516143.pdfIn PDF document text
    • http://digilibfisip.uwks.ac.id/repository/hack-para-trials-simon-says-roblox_GM431946152.pdfIn PDF document text
    • http://digilibfisip.uwks.ac.id/repository/how-to-get-minecraft-bedrock-for-free-with-java_GM479516143.pdfIn PDF document text
    • http://digilibfisip.uwks.ac.id/repository/hack-for-assasin-roblox_GM431946152.pdfIn PDF document text
    • http://digilibfisip.uwks.ac.id/repository/dumptruck-simulator-hack-roblox_GM431946152.pdfIn PDF document text
    • http://digilibfisip.uwks.ac.id/repository/hack-shrek-roblox_GM431946152.pdfIn PDF document text
    • http://digilibfisip.uwks.ac.id/repository/does-roblox-detect-cheat-engine_GM431946152.pdfIn PDF document text
    • http://digilibfisip.uwks.ac.id/repository/pastebin-com-for-free-robux_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_off000031da.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x31DA 23176 bytes
SHA-256: 1401e3cd199b7c01d4113d975ea90e7677394ddb3d4b4cf6d07226f0626a5f03
font_01_sfnt_off00006612.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6612 19104 bytes
SHA-256: e0f45a4be607e464ebf9a3c77fdd8e46c1b4b728411021fd90f3b2942ed9d94b

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