Malicious PDF — malware analysis report

Static analysis result for SHA-256 ab68a6ef5d6c7541…

MALICIOUS

PDF

33.8 KB Created: 2021-07-04 12:36:28 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: 2a7d3ab024c969314b5c4e1d528b66ad SHA-1: 36f21bcfbdc338b8d74cf3647e7349f2af2b9d28 SHA-256: ab68a6ef5d6c7541355591340b4218bd5e76edbf24d343839641556c933b227f
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links to known malicious redirectors and lures users with promises of free in-game items. The primary link directs to 'http://netcdn.tw/app/479516143/how-to-get-free-minecraft-coins-game-hack', which is flagged as a malicious redirector. The document's content and embedded links strongly suggest a phishing or scam attempt designed to lead users to potentially harmful websites.

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/479516143/how-to-get-free-minecraft-coins-game-hack In PDF document text
    • http://astdubai.co/userfiles/files/free-robux-without-human-verification_GM431946152.pdfIn PDF document text
    • http://astdubai.co/userfiles/files/how-to-get-free-clothes-on-roblox_GM431946152.pdfIn PDF document text
    • http://astdubai.co/userfiles/files/rbx-earn_GM431946152.pdfIn PDF document text
    • http://astdubai.co/userfiles/files/coin-master-free-spins-link-blogspot_GM406889139.pdfIn PDF document text
    • http://astdubai.co/userfiles/files/minecraft-auto-miner-hack_GM479516143.pdfIn PDF document text
    • http://astdubai.co/userfiles/files/apps-for-free-robux_GM431946152.pdfIn PDF document text
    • http://astdubai.co/userfiles/files/robux-codes_GM431946152.pdfIn PDF document text
    • http://astdubai.co/userfiles/files/coin-master-apk-hack-35-8_GM406889139.pdfIn PDF document text
    • http://astdubai.co/userfiles/files/minecraft-hacks-list_GM479516143.pdfIn PDF document text
    • http://astdubai.co/userfiles/files/roblox-tips-and-cheats_GM431946152.pdfIn PDF document text
    • http://astdubai.co/userfiles/files/free-card-link-coin-master_GM406889139.pdfIn PDF document text
    • http://astdubai.co/userfiles/files/how-to-get-free-comends-on-roblox_GM431946152.pdfIn PDF document text
    • http://astdubai.co/userfiles/files/how-to-hack-roblox-treasure-hunt-simulator-get-rebirth_GM431946152.pdfIn PDF document text
    • http://astdubai.co/userfiles/files/how-to-get-a-free-dominus-in-roblox_GM431946152.pdfIn PDF document text
    • http://astdubai.co/userfiles/files/coin-master-free-spins-2021-generator_GM406889139.pdfIn PDF document text
    • http://astdubai.co/userfiles/files/free-robux-promo-codes-2021_GM431946152.pdfIn PDF document text
    • http://astdubai.co/userfiles/files/how-to-get-free-packages-on-roblox_GM431946152.pdfIn PDF document text
    • http://astdubai.co/userfiles/files/roblox-robux-gratis-hack_GM431946152.pdfIn PDF document text
    • http://astdubai.co/userfiles/files/coin-master-daily-free-spins-link-today_GM406889139.pdfIn PDF document text
    • http://astdubai.co/userfiles/files/how-to-get-free-robux-no-scam_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_off00003175.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3175 21924 bytes
SHA-256: 20ca39150c9d9f006cbdba7651ee64264d6e068dbeae45095edc87151d78fc55
font_01_sfnt_off000061b9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x61B9 18164 bytes
SHA-256: beda6d2eeaedf06c4f9c71f25ee73c2930771b9967372e0e5b2633e02f8c4c40

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