Malicious PDF — malware analysis report

Static analysis result for SHA-256 553130b95683cb38…

MALICIOUS

PDF

55.4 KB Created: 2021-05-11 02:04:14 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-13
MD5: dea5f6e6339e848c8e2b0c055fa128f8 SHA-1: 069f1cf9e383b4c4ccff53e6eda67fafdc53de53 SHA-256: 553130b95683cb3846389e3d86e72e83a3c3e6c86d1ccf7e3789dc7813cda556
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document contains multiple links to known malicious redirectors, specifically advertising 'Coin Master' game hacks and free generators. The document body and embedded URLs suggest a lure designed to entice users to click through to potentially malicious websites. No scripts were extracted, but the presence of multiple malicious links indicates a high likelihood of a phishing or redirection attack.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8531

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/coin-master-gold-cards-free-link-game-hack In PDF document text
    • http://www.dolciariavarone.com/images/coin-master-400-spin-link_GM406889139.pdfIn PDF document text
    • http://www.dolciariavarone.com/images/how-to-get-free-robux-app_GM431946152.pdfIn PDF document text
    • http://www.dolciariavarone.com/images/hack-master-coin-pc_GM406889139.pdfIn PDF document text
    • http://www.dolciariavarone.com/images/master-free-spin-and-coin-link_GM406889139.pdfIn PDF document text
    • http://www.dolciariavarone.com/images/huskybuscom-free-robux_GM431946152.pdfIn PDF document text
    • http://www.dolciariavarone.com/images/roblox-group-free-robux_GM431946152.pdfIn PDF document text
    • http://www.dolciariavarone.com/images/gamehunters-club-coin-master_GM406889139.pdfIn PDF document text
    • http://www.dolciariavarone.com/images/coin-master-heaven-free-spins-today_GM406889139.pdfIn PDF document text
    • http://www.dolciariavarone.com/images/free-robux-no-verify-2021_GM431946152.pdfIn PDF document text
    • http://www.dolciariavarone.com/images/wurst-hacked-client_GM479516143.pdfIn PDF document text
    • http://www.dolciariavarone.com/images/coin-master-daily-free-spins-link-2021_GM406889139.pdfIn PDF document text
    • http://www.dolciariavarone.com/images/free-robux-no-verification-2021-android_GM431946152.pdfIn PDF document text
    • http://www.dolciariavarone.com/images/free-spin-coin-master-hacktoman_GM406889139.pdfIn PDF document text
    • http://www.dolciariavarone.com/images/hackear-coin-master_GM406889139.pdfIn PDF document text
    • http://www.dolciariavarone.com/images/best-free-robux-sites_GM431946152.pdfIn PDF document text
    • http://www.dolciariavarone.com/images/roblox-zone-free-robux_GM431946152.pdfIn PDF document text
    • http://www.dolciariavarone.com/images/coin-master-card-collection-link_GM406889139.pdfIn PDF document text
    • http://www.dolciariavarone.com/images/how-to-get-free-robux-no-human-verification_GM431946152.pdfIn PDF document text
    • http://www.dolciariavarone.com/images/free-robux-stream_GM431946152.pdfIn PDF document text
    • http://www.dolciariavarone.com/images/twitter-coin-master-free-spins_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 5

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off000049c7.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x49C7 25836 bytes
SHA-256: 366529840e26c9b6d60a2e48e5865085660f8930cc0942b6f684b0143f2d3ee9
font_01_sfnt_off00008649.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8649 4332 bytes
SHA-256: bd3bffbf11b71367daf8e579304f3f6d2694ec7b91a9aebd62884f702513af34
font_02_sfnt_off0000950e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x950E 7960 bytes
SHA-256: cf7ae5cf6bef3222f5a26bec705b492fed0278aec6b16ec101aeda46e0edd2b2
font_03_sfnt_off0000a833.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA833 18128 bytes
SHA-256: 3c7d889e052bb081026c5a88f6ee2afe5bc892e32bf973502febc93f4313d009
font_04_sfnt_off0000c9ac.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC9AC 4272 bytes
SHA-256: fac9a06ceb5574feb8580c075df3ef69dfbd0efa4947186cfe90f11b68eaafb0

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