Malicious PDF — malware analysis report

Static analysis result for SHA-256 0cc135130acf75e9…

MALICIOUS

PDF

35.9 KB Created: 2021-06-20 06:43:38 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-13
MD5: 050476eec533e8c0478c8601cb047972 SHA-1: c849276e410258d154984beee627da4d7afb2ca4 SHA-256: 0cc135130acf75e9480cc173504da438cec2aa8b4b550a3a639e949412b963dc
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple links to a known malicious redirector, specifically advertising 'game hacks' and 'free generators' to lure victims. The document body and embedded URLs reinforce this theme, aiming to trick users into clicking through to potentially harmful content. The ML classifier also strongly indicated maliciousness.

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-look-like-a-wannabe-hacker-on-roblox-game-hack In PDF document text
    • https://elearning.mtsn2tala.sch.id/__statics/gudangsoal/files/roblox-freenet_GM431946152.pdfIn PDF document text
    • https://www.elearning.mtsn2tala.sch.id/__statics/gudangsoal/files/free-lvl7-full-lua-roblox_GM431946152.pdfIn PDF document text
    • https://www.elearning.mtsn2tala.sch.id/__statics/gudangsoal/files/how-to-get-free-clothes-on-roblox-using-codes_GM431946152.pdfIn PDF document text
    • https://www.elearning.mtsn2tala.sch.id/__statics/gudangsoal/files/free-minecraft-texture-packs_GM479516143.pdfIn PDF document text
    • https://www.elearning.mtsn2tala.sch.id/__statics/gudangsoal/files/how-to-labeled-cheater-in-roblox-parkour_GM431946152.pdfIn PDF document text
    • https://elearning.mtsn2tala.sch.id/__statics/gudangsoal/files/how-to-use-free-robux-codes_GM431946152.pdfIn PDF document text
    • https://www.elearning.mtsn2tala.sch.id/__statics/gudangsoal/files/roblox-prison-life-hack_GM431946152.pdfIn PDF document text
    • https://www.elearning.mtsn2tala.sch.id/__statics/gudangsoal/files/tons-of-robux-for-free_GM431946152.pdfIn PDF document text
    • https://www.elearning.mtsn2tala.sch.id/__statics/gudangsoal/files/free-robux-2021-hack-pc_GM431946152.pdfIn PDF document text
    • https://elearning.mtsn2tala.sch.id/__statics/gudangsoal/files/fre-robux-websites_GM431946152.pdfIn PDF document text
    • https://elearning.mtsn2tala.sch.id/__statics/gudangsoal/files/minecraft-dungeons-free-download_GM479516143.pdfIn PDF document text
    • https://www.elearning.mtsn2tala.sch.id/__statics/gudangsoal/files/roblox-registration-right-way-up-cheats_GM431946152.pdfIn PDF document text
    • https://elearning.mtsn2tala.sch.id/__statics/gudangsoal/files/erreur-277-roblox-free_GM431946152.pdfIn PDF document text
    • https://elearning.mtsn2tala.sch.id/__statics/gudangsoal/files/roblox-got-talent-piano-hacks_GM431946152.pdfIn PDF document text
    • https://elearning.mtsn2tala.sch.id/__statics/gudangsoal/files/free-roblox-generator-for-roblox_GM431946152.pdfIn PDF document text
    • https://elearning.mtsn2tala.sch.id/__statics/gudangsoal/files/hackear-roblox-sin-inspeccionar_GM431946152.pdfIn PDF document text
    • https://www.elearning.mtsn2tala.sch.id/__statics/gudangsoal/files/how-to-get-minecraft-for-free-on-android-device_GM479516143.pdfIn PDF document text
    • http://elearning.mtsn2tala.sch.id/__statics/gudangsoal/files/como-instalar-hacks-de-roblox-en-infinite-anime_GM431946152.pdfIn PDF document text
    • https://www.elearning.mtsn2tala.sch.id/__statics/gudangsoal/files/free-robux-no-human-verification-generator_GM431946152.pdfIn PDF document text
    • https://elearning.mtsn2tala.sch.id/__statics/gudangsoal/files/auto-cheat-roblox_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_off00003430.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3430 22660 bytes
SHA-256: 1cde9f03e155171806ab8e1a7cf546ad83142f907bd4f1a9d8db359a6e9dd69d
font_01_sfnt_off000066f5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x66F5 19136 bytes
SHA-256: 9be5b807d76e4222845c0ed879d3dd6914d395c0d33e9a56a4b21f5578b430b9

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