Malicious PDF — malware analysis report

Static analysis result for SHA-256 d29ac867462f298b…

MALICIOUS

PDF

41.7 KB Created: 2021-05-10 20:01:37 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-11-23
MD5: 505e96c5f1dc0b16e116c25512ca8a4e SHA-1: 55e1eca9db49820bf535bf6f513b0b7b25f62511 SHA-256: d29ac867462f298b8ee0824cad328974c68c707fcb7fd55efb5f1960ec603803
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links to known malicious redirectors and infrastructure, disguised as free game-related content. The primary URL, https://netcdn.xyz/app/479516143/free-minecraft-com-game-hack, is identified as a malicious redirector. The document body and embedded URLs suggest a lure for users seeking game cheats or in-game currency, which is a common social engineering tactic. No scripts were extracted, but the presence of multiple malicious links indicates a high likelihood of leading users to a malicious site for further exploitation.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9971

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 https://netcdn.xyz/app/479516143/free-minecraft-com-game-hack In PDF document text
    • http://ptts.pl/images/how-to-change-your-roblox-username-for-free-2021_GM431946152.pdfIn PDF document text
    • http://ptts.pl/images/roblox-hackers-list_GM431946152.pdfIn PDF document text
    • http://ptts.pl/images/minecraft-free-download-android-apk-014-0_GM479516143.pdfIn PDF document text
    • http://ptts.pl/images/gain-robux_GM431946152.pdfIn PDF document text
    • http://ptts.pl/images/roblox-hack-game_GM431946152.pdfIn PDF document text
    • http://ptts.pl/images/free-roblox-hack-us_GM431946152.pdfIn PDF document text
    • http://ptts.pl/images/claim-roblox_GM431946152.pdfIn PDF document text
    • http://ptts.pl/images/how-do-i-get-minecraft-for-free_GM479516143.pdfIn PDF document text
    • http://ptts.pl/images/free-spin-link-coin-master-app_GM406889139.pdfIn PDF document text
    • http://ptts.pl/images/coin-master-hack-ios-cydia_GM406889139.pdfIn PDF document text
    • http://ptts.pl/images/free-robux-giveaway-live_GM431946152.pdfIn PDF document text
    • http://ptts.pl/images/to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://ptts.pl/images/minecraft-116-1-download_GM479516143.pdfIn PDF document text
    • http://ptts.pl/images/robux-hack-generator_GM431946152.pdfIn PDF document text
    • http://ptts.pl/images/roblox-hack-me-robux_GM431946152.pdfIn PDF document text
    • http://ptts.pl/images/free-robux-no-anti-bot-verification_GM431946152.pdfIn PDF document text
    • http://ptts.pl/images/roblox-gang_GM431946152.pdfIn PDF document text
    • http://ptts.pl/images/coin-master-apk-hack-3527_GM406889139.pdfIn PDF document text
    • http://ptts.pl/images/free-roblox-clothes-templates_GM431946152.pdfIn PDF document text
    • http://ptts.pl/images/how-do-you-get-free-coins-in-coin-master_GM406889139.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
stream_003_off000048ce.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x48CE 25284 bytes
SHA-256: cf4a77af413b13bfc63e971b7a3b35ffd07ca5d81c98619328a3e32ba453b241
font_01_sfnt_off0000819a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x819A 17968 bytes
SHA-256: 1b4885c2af39899205e5d90bbae948db42423f4b52ef91d34878d66166ac5d9f

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