Malicious PDF — malware analysis report

Static analysis result for SHA-256 ab4162ee44a28aa3…

MALICIOUS

PDF

34.2 KB Created: 2021-07-04 06:26:52 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-14
MD5: 223d65e7a1a8fe7a1b826e97a99c40d6 SHA-1: 694142d162c4bad78736244004e812d615d092ae SHA-256: ab4162ee44a28aa3fb99057b021ee1b4c025718b99224929751e60fe11b45aed
160 Risk Score

Malware Insights

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

This PDF document employs a lure of free game hacks and generators to trick users into clicking malicious links. The primary link redirects to infrastructure known for hosting malicious content, suggesting a phishing or malware distribution attempt. While no scripts were explicitly extracted, the PDF structure and embedded URLs strongly indicate a malicious redirector chain designed to deliver a payload or lead to further phishing attempts.

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.tw/app/406889139/freecoins-game-hack In PDF document text
    • https://creationegyptco.com/userfiles/files/roblox-island-royale-cheats_GM431946152.pdfIn PDF document text
    • https://creationegyptco.com/userfiles/files/coin-master-free-spin-today_GM406889139.pdfIn PDF document text
    • https://creationegyptco.com/userfiles/files/roblox-egg-hunt-2021-hack-script_GM431946152.pdfIn PDF document text
    • https://creationegyptco.com/userfiles/files/get-robux-for-free-2021_GM431946152.pdfIn PDF document text
    • https://creationegyptco.com/userfiles/files/free-robux-generator-no-human-verification-or-survey-2021_GM431946152.pdfIn PDF document text
    • https://creationegyptco.com/userfiles/files/roblox-dungeon-quest-noob-vs-pro-vs-hacker_GM431946152.pdfIn PDF document text
    • https://creationegyptco.com/userfiles/files/free-roblox-outfits_GM431946152.pdfIn PDF document text
    • https://creationegyptco.com/userfiles/files/free-coin-master-links_GM406889139.pdfIn PDF document text
    • https://creationegyptco.com/userfiles/files/free-prizes-roblox_GM431946152.pdfIn PDF document text
    • https://creationegyptco.com/userfiles/files/how-to-get-free-robux-hack-2021_GM431946152.pdfIn PDF document text
    • https://creationegyptco.com/userfiles/files/free-tiktok-fans-and-likes_GM835599320.pdfIn PDF document text
    • https://creationegyptco.com/userfiles/files/minecraft-hacks-115-2_GM479516143.pdfIn PDF document text
    • https://creationegyptco.com/userfiles/files/how-do-you-get-roebucks_GM431946152.pdfIn PDF document text
    • https://creationegyptco.com/userfiles/files/roblox-heroes-online_GM431946152.pdfIn PDF document text
    • https://creationegyptco.com/userfiles/files/free-robux-instantly_GM431946152.pdfIn PDF document text
    • https://creationegyptco.com/userfiles/files/i-got-hacked-on-roblox_GM431946152.pdfIn PDF document text
    • https://creationegyptco.com/userfiles/files/how-to-get-free-robux-no-waiting_GM431946152.pdfIn PDF document text
    • https://creationegyptco.com/userfiles/files/cheat-codes-to-get-robux-on-roblox_GM431946152.pdfIn PDF document text
    • https://creationegyptco.com/userfiles/files/john-doe-roblox-hacker_GM431946152.pdfIn PDF document text
    • https://creationegyptco.com/userfiles/files/roblox-redeem_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_off000030ba.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x30BA 22972 bytes
SHA-256: d4646536cb96b024ec15ba67660b71a4f8e79e66fc7e25abfe86b1e6b7493646
font_01_sfnt_off0000646a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x646A 17896 bytes
SHA-256: 95b27e0fe0f8d09f21308dfe7f1e0da3cbc5e6d7e802a0f52430e90404511a42

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