Malicious PDF — malware analysis report

Static analysis result for SHA-256 e485f67c33f030bb…

MALICIOUS

PDF

34.0 KB Created: 2021-06-19 06:18:37 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-16
MD5: 2ad45578ecc2e18dc7804e4c4cee8507 SHA-1: fe0f781365aad701adea1798e655cf7b165c50d0 SHA-256: e485f67c33f030bb8f4b91a0e9bc3644148f4cb73691ffed874f8f25791a1029
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains embedded links that lead to a known malicious redirector, disguised as a 'game hack' generator. The document body and extracted URLs reinforce this lure, 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-become-a-hacker-in-roblox-jailbreak-game-hack In PDF document text
    • https://digilib.stieama.ac.id/repository/roblox-com-free-online_GM431946152.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/coin-master-free-coins-2021_GM406889139.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/how-to-get-minecraft-for-free-on-ipad_GM479516143.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/coin-master-hack-tool-without-verification_GM406889139.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/coin-master-heaven-free-spins-link-2021_GM406889139.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/grow-simulator-hack-roblox_GM431946152.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/roblox-aimbot-hack-v3rmillion-phantom-2021_GM431946152.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/join-roblox-builders-club-free_GM431946152.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/free-spin-generator-for-coin-master_GM406889139.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/exploit-hack-roblox-free-download-mod-menu_GM431946152.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/free-shirt-and-pants-roblox_GM431946152.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/get-free-robux-today_GM431946152.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/roblox-fashion-frenzy-game-free-online_GM431946152.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/how-to-watch-ads-for-free-spins-in-coin-master_GM406889139.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/what-games-give-you-robux_GM431946152.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/build-battle-roblox-hacks_GM431946152.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/minecraft-rtx-download-free_GM479516143.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/how-to-get-free-tix-on-roblox-ipad_GM431946152.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/2021-roblox-hacks-mac_GM431946152.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/free-roblox-characters_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_off00002e54.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2E54 22400 bytes
SHA-256: 8e8fe48c40b72a9a48dd3ef4ff2b9da314992e2ac5d8668638eedce7bc46d261
font_01_sfnt_off00005f08.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5F08 19368 bytes
SHA-256: 0229fee73e3af33650ec35b9eb96ed34fefca3d2c8768a4b157441df4d7e8c2c

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