Malicious PDF — malware analysis report

Static analysis result for SHA-256 0ab3e0e07fe3fe49…

MALICIOUS

PDF

41.9 KB Created: 2021-06-09 17:03:13 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-13
MD5: ab31b6c8f620dbd622e7ff8facb835f6 SHA-1: f2a2ef431141c4cdb12d5579a56216ab6218ffed SHA-256: 0ab3e0e07fe3fe49562bfa46b1556b8876b2df73040fe2d1b15a71e9ec62453f
152 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains embedded links that redirect to known malicious infrastructure, specifically promoting a 'Roblox Jailbreak Hack'. The document body and heuristics indicate a lure designed to trick users into visiting a site that likely hosts further malicious content or exploits. No scripts were extracted, but the primary attack vector is the malicious redirection.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

Heuristics 3

  • 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.
  • 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.tw/app/431946152/best-roblox-jailbreak-hack-2021-mod-menu-level-5-game-hack In PDF document text
    • http://elib-s2.ubl.ac.id/repository/how-to-get-free-robux-no-survey-no-sam_GM431946152.pdfIn PDF document text
    • http://elib-s2.ubl.ac.id/repository/how-to-get-free-robux-in-roblox-without-a-generator_GM431946152.pdfIn PDF document text
    • http://elib-s2.ubl.ac.id/repository/alfheim-online-roblox-hack_GM431946152.pdfIn PDF document text
    • http://elib-s2.ubl.ac.id/repository/how-do-i-get-free-spins-in-coin-master_GM406889139.pdfIn PDF document text
    • http://elib-s2.ubl.ac.id/repository/how-to-get-minecraft-for-free-on-ps4_GM479516143.pdfIn PDF document text
    • http://elib-s2.ubl.ac.id/repository/dessert-simulator-hack-roblox_GM431946152.pdfIn PDF document text
    • http://elib-s2.ubl.ac.id/repository/minecraft-java-edition-free-download-for-android_GM479516143.pdfIn PDF document text
    • http://elib-s2.ubl.ac.id/repository/free-promo-codes-roblox-2021_GM431946152.pdfIn PDF document text
    • http://elib-s2.ubl.ac.id/repository/only-working-way-to-get-free-robux-in-roblox_GM431946152.pdfIn PDF document text
    • http://elib-s2.ubl.ac.id/repository/get-roblox-hacks-mac_GM431946152.pdfIn PDF document text
    • http://elib-s2.ubl.ac.id/repository/how-to-get-free-robux-2021_GM431946152.pdfIn PDF document text
    • http://elib-s2.ubl.ac.id/repository/free-rs-roblox_GM431946152.pdfIn PDF document text
    • http://elib-s2.ubl.ac.id/repository/tiktok-likes-for-free_GM835599320.pdfIn PDF document text
    • http://elib-s2.ubl.ac.id/repository/theme-park-tycoon-2-hack-roblox_GM431946152.pdfIn PDF document text
    • http://elib-s2.ubl.ac.id/repository/hack-executor-roblox_GM431946152.pdfIn PDF document text
    • http://elib-s2.ubl.ac.id/repository/free-spins-coin-master-2021_GM406889139.pdfIn PDF document text
    • http://elib-s2.ubl.ac.id/repository/roblox-is-being-hacked-9-21-2021_GM431946152.pdfIn PDF document text
    • http://elib-s2.ubl.ac.id/repository/free-tiktok-likes-trial_GM835599320.pdfIn PDF document text
    • http://elib-s2.ubl.ac.id/repository/how-to-download-minecraft-for-free-on-pc_GM479516143.pdfIn PDF document text
    • http://elib-s2.ubl.ac.id/repository/is-using-a-auto-clicker-on-simulators-roblox-cheating_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 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_004_off00005473.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x5473 27672 bytes
SHA-256: 4b226e8d0e08b498d6a6cd29a1915141e1ecf1d2033a95f11280a66a3163c71c

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