Malicious PDF — malware analysis report

Static analysis result for SHA-256 62eb571005b4a01f…

MALICIOUS

PDF

49.3 KB Created: 2021-05-13 20:08:28 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-13
MD5: 169cd29f1bc484bff5fbe4fd7bc80139 SHA-1: 70a505c4a95e12ae48e5c1f555a24c465b9f5f3f SHA-256: 62eb571005b4a01fcdad9ef5178d13e12ea3b9bed0df6c3b18121986cbf9503f
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple links to redirectors and known malicious infrastructure, disguised as game hacks or generators. The document body and heuristics indicate a lure to download a file, likely a second-stage payload. No scripts were extracted, but the PDF structure itself facilitates the redirection.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8642

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/406889139/hack-version-of-coin-master-apk-download-game-hack In PDF document text
    • https://photographygroupofbunbury.com/images/how-to-get-free-robux-on-computer_GM431946152.pdfIn PDF document text
    • https://photographygroupofbunbury.com/images/how-to-get-free-robux-easy-2021_GM431946152.pdfIn PDF document text
    • https://photographygroupofbunbury.com/images/how-to-get-free-robux-no-verification-2021_GM431946152.pdfIn PDF document text
    • https://photographygroupofbunbury.com/images/free-robux-generator-no-verification_GM431946152.pdfIn PDF document text
    • https://photographygroupofbunbury.com/images/free-coin-master-spins-daily_GM406889139.pdfIn PDF document text
    • https://photographygroupofbunbury.com/images/minecraft-account-hacked_GM479516143.pdfIn PDF document text
    • https://photographygroupofbunbury.com/images/coin-master-daily-link_GM406889139.pdfIn PDF document text
    • https://photographygroupofbunbury.com/images/coin-master-hack-version-ios_GM406889139.pdfIn PDF document text
    • https://photographygroupofbunbury.com/images/coin-master-heaven-links_GM406889139.pdfIn PDF document text
    • https://photographygroupofbunbury.com/images/get-free-coins-for-coin-master_GM406889139.pdfIn PDF document text
    • https://photographygroupofbunbury.com/images/roblox-promo-codes-for-free-robux_GM431946152.pdfIn PDF document text
    • https://photographygroupofbunbury.com/images/free-stuff-on-roblox_GM431946152.pdfIn PDF document text
    • https://photographygroupofbunbury.com/images/spin-free-coin-master_GM406889139.pdfIn PDF document text
    • https://photographygroupofbunbury.com/images/what-do-points-do-in-roblox_GM431946152.pdfIn PDF document text
    • https://photographygroupofbunbury.com/images/roblox-www-com_GM431946152.pdfIn PDF document text
    • https://photographygroupofbunbury.com/images/how-to-get-free-robux-for-free_GM431946152.pdfIn PDF document text
    • https://photographygroupofbunbury.com/images/how-to-get-free-spins-on-coin-master_GM406889139.pdfIn PDF document text
    • https://photographygroupofbunbury.com/images/coin-master-hack-app_GM406889139.pdfIn PDF document text
    • https://photographygroupofbunbury.com/images/how-do-you-get-free-daily-spins-on-coin-master_GM406889139.pdfIn PDF document text
    • https://photographygroupofbunbury.com/images/free-robux-hack-2021_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 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off000049ec.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x49EC 25440 bytes
SHA-256: 37b3ef5b2bdafba0cd7953b04a6b5e225dcd6ed9ff48e2a1d7a5faf5a97c3089
font_01_sfnt_off0000840e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x840E 4376 bytes
SHA-256: 73dd7e554d2362c8a4657ca7404fa46afefe77e8dae0806d8d64496a2a98836e
font_02_sfnt_off00009309.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9309 2788 bytes
SHA-256: 6fd7c7f447d66842f81aa8cf197935b17f22157d0c7e9f95622df1b5b4ddf530
font_03_sfnt_off00009cf9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9CF9 18608 bytes
SHA-256: 5b95fa97962658a3e629e8357bf81639977ca58617958822feb21fc523d607ab

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