Malicious PDF — malware analysis report

Static analysis result for SHA-256 5ed66dbe81daffe5…

MALICIOUS

PDF

34.1 KB Created: 2021-07-01 06:27:06 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-27
MD5: bd9027026804d3e8a36368977c9c27a2 SHA-1: 561949c8cd7f14a867c195f6854ea35fe0e6a373 SHA-256: 5ed66dbe81daffe58de0b6028a6986d92d315c50981e5c6fc73b12377854ea48
160 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 hacks and free generators to trick users into clicking embedded links. The primary link, http://netcdn.co/app/431946152/roblox-snippet-hack-game-hack, redirects to known malicious infrastructure. While no scripts were explicitly extracted, the PDF structure and embedded links suggest a potential for exploitation or further payload delivery, aligning with common phishing and redirection tactics.

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/roblox-snippet-hack-game-hack In PDF document text
    • http://artistaone.co/userfiles/files/coin-master-free-spins-link-2021-blogger_GM406889139.pdfIn PDF document text
    • http://artistaone.co/userfiles/files/coin-master-free-coins_GM406889139.pdfIn PDF document text
    • http://artistaone.co/userfiles/files/can-you-hack-coin-master_GM406889139.pdfIn PDF document text
    • http://artistaone.co/userfiles/files/free-stuff-in-roblox-2021_GM431946152.pdfIn PDF document text
    • http://artistaone.co/userfiles/files/80-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • http://artistaone.co/userfiles/files/ccv3-roblox-hack-tutorial_GM431946152.pdfIn PDF document text
    • http://artistaone.co/userfiles/files/how-to-get-free-robux-without-getting-any-apps_GM431946152.pdfIn PDF document text
    • http://artistaone.co/userfiles/files/cheat-engine-admin-hack-roblox_GM431946152.pdfIn PDF document text
    • http://artistaone.co/userfiles/files/roblox-land-free-robux_GM431946152.pdfIn PDF document text
    • http://artistaone.co/userfiles/files/master-free-spin_GM406889139.pdfIn PDF document text
    • http://artistaone.co/userfiles/files/free-spins-for-coin-master-game_GM406889139.pdfIn PDF document text
    • http://artistaone.co/userfiles/files/roblox-free-robux-no-human-verification_GM431946152.pdfIn PDF document text
    • http://artistaone.co/userfiles/files/hackear-cuenta-de-roblox-2021_GM431946152.pdfIn PDF document text
    • http://artistaone.co/userfiles/files/coin-master-free-spins-hack-but-no-surveys_GM406889139.pdfIn PDF document text
    • http://artistaone.co/userfiles/files/how-to-get-free-robux-inspect_GM431946152.pdfIn PDF document text
    • http://artistaone.co/userfiles/files/robux-today_GM431946152.pdfIn PDF document text
    • http://artistaone.co/userfiles/files/hacked-roblox-game_GM431946152.pdfIn PDF document text
    • http://artistaone.co/userfiles/files/aimbot-hack-roblox-rb-world-2_GM431946152.pdfIn PDF document text
    • http://artistaone.co/userfiles/files/how-to-hack-and-steal-pepoles-robux_GM431946152.pdfIn PDF document text
    • http://artistaone.co/userfiles/files/how-can-i-get-free-coinsn-coin-master_GM406889139.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_off00002f3a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2F3A 21992 bytes
SHA-256: d3b43cf5cf6141c404e5311a26026beb2089e377c96d74dfc90322c517e86c71
font_01_sfnt_off00005ff6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5FF6 19056 bytes
SHA-256: 148a8110e4c3d7e0814106c716ae57661f7c3012b08f3f9436fa9fb6261bd78b

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