Malicious PDF — malware analysis report

Static analysis result for SHA-256 d6ea53024a980692…

MALICIOUS

PDF

44.9 KB Created: 2021-06-11 04:19:12 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-24
MD5: c1c291ae84f2d0e89e8d01f59ccfa3f3 SHA-1: 0ec2bcfa40443a16f73ca2624f1fac2ca202f52a SHA-256: d6ea53024a9806924db9a55d69507fbcb94e706e53a9ec28dbd26f8794dea06a
200 Risk Score

Malware Insights

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

This PDF document employs a lure related to game cheats and generators, displaying a fake CAPTCHA to trick users into interacting with malicious links. The embedded links, such as 'https://netcdn.tw/app/431946152/roblox-pizza-place-money-cheat-game-hack', are known to lead to malicious redirector infrastructure. The document's structure and the presence of multiple suspicious URLs suggest an attempt to deliver a second-stage payload or phish for credentials.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9865

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.
  • Fake CAPTCHA / human verification prompt high SE_FAKE_CAPTCHA
    Document displays a fake CAPTCHA or human-verification prompt — used to trick users into running commands or pressing keyboard shortcuts
  • 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 https://netcdn.tw/app/431946152/roblox-pizza-place-money-cheat-game-hack In PDF document text
    • https://scit-tech.ro/wp-content/uploads/fsqm-files/roblox-password-hacker_GM431946152.pdfIn PDF document text
    • https://scit-tech.ro/wp-content/uploads/fsqm-files/how-to-hack-jailbreak-roblox_GM431946152.pdfIn PDF document text
    • https://scit-tech.ro/wp-content/uploads/fsqm-files/all-free-roblox-catalog-items_GM431946152.pdfIn PDF document text
    • https://scit-tech.ro/wp-content/uploads/fsqm-files/minecraft-redeem-code-free_GM479516143.pdfIn PDF document text
    • https://scit-tech.ro/wp-content/uploads/fsqm-files/how-to-have-have-a-free-item-in-roblox_GM431946152.pdfIn PDF document text
    • https://scit-tech.ro/wp-content/uploads/fsqm-files/how-to-get-free-robux-mythical-chaos_GM431946152.pdfIn PDF document text
    • https://scit-tech.ro/wp-content/uploads/fsqm-files/free-robux-no-human-verification_GM431946152.pdfIn PDF document text
    • https://scit-tech.ro/wp-content/uploads/fsqm-files/claim-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • https://scit-tech.ro/wp-content/uploads/fsqm-files/how-to-get-free-robux-august_GM431946152.pdfIn PDF document text
    • https://scit-tech.ro/wp-content/uploads/fsqm-files/minecraft-free-download_GM479516143.pdfIn PDF document text
    • https://scit-tech.ro/wp-content/uploads/fsqm-files/hacks-para-roblox-booga-booga-2021_GM431946152.pdfIn PDF document text
    • https://scit-tech.ro/wp-content/uploads/fsqm-files/how-to-hack-roblox-vehicle-simulator-using-cheat-engine_GM431946152.pdfIn PDF document text
    • https://scit-tech.ro/wp-content/uploads/fsqm-files/free-robux-no-verification-no-download-2021_GM431946152.pdfIn PDF document text
    • https://scit-tech.ro/wp-content/uploads/fsqm-files/free-minecraft-codes_GM479516143.pdfIn PDF document text
    • https://scit-tech.ro/wp-content/uploads/fsqm-files/how-to-get-free-robux-2021-working_GM431946152.pdfIn PDF document text
    • https://scit-tech.ro/wp-content/uploads/fsqm-files/roblox-free-robux_GM431946152.pdfIn PDF document text
    • https://scit-tech.ro/wp-content/uploads/fsqm-files/free-fans-on-tiktok_GM835599320.pdfIn PDF document text
    • https://scit-tech.ro/wp-content/uploads/fsqm-files/power-simulator-cheat-engine-roblox_GM431946152.pdfIn PDF document text
    • https://scit-tech.ro/wp-content/uploads/fsqm-files/free-red-spikey-hair-roblox-that-is-actually-free_GM431946152.pdfIn PDF document text
    • https://scit-tech.ro/wp-content/uploads/fsqm-files/hack-phantom-forces-roblox_GM431946152.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00005306.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5306 24516 bytes
SHA-256: 3b8b64b9e349557de0d9f04cef744514242c788902b778c5aefd8c86fd10a0b2
font_01_sfnt_off00008ac7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8AC7 19016 bytes
SHA-256: 79ceab04676d7a59322e21c2422bd1379d7a4edff193b3f43edbbb8322602240

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