Malicious PDF — malware analysis report

Static analysis result for SHA-256 e7363bd8e0ad643f…

MALICIOUS

PDF

49.1 KB Created: 2021-06-08 13:01:00 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-18
MD5: fe6a340a22837b9144fbedd7622d0a2c SHA-1: 6b6197baf3219b1b71a312d1837a5b1aad7921e6 SHA-256: e7363bd8e0ad643f541067f2f4ee520d07583f429886a881aaf068bc8ccfeca3
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document was flagged as malicious by an ML classifier. The file routes users through malicious redirector infrastructure and presents a deceptive download button. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9796

Heuristics 4

  • PDF links to a 'free generator / game hack' redirector high 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.
  • 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
  • External URI info PDF_URI
    PDF contains an external URL action
  • 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.tw/app/431946152/como-hackear-la-cuenta-de-tu-amigo-roblox-game-hack PDF link annotation
    • https://www.ati-gulf.com/uploaded_files/userfiles/files/free-robux-with-no-verification_GM431946152.pdfIn PDF document text
    • https://www.ati-gulf.com/uploaded_files/userfiles/files/how-to-get-free-robux_GM431946152.pdfIn PDF document text
    • https://www.ati-gulf.com/uploaded_files/userfiles/files/robux-2021_GM431946152.pdfIn PDF document text
    • https://www.ati-gulf.com/uploaded_files/userfiles/files/free-robux-gen_GM431946152.pdfIn PDF document text
    • https://www.ati-gulf.com/uploaded_files/userfiles/files/minecraft-online-free-no-download_GM479516143.pdfIn PDF document text
    • https://www.ati-gulf.com/uploaded_files/userfiles/files/how-do-you-get-roebucks-for-free_GM431946152.pdfIn PDF document text
    • https://www.ati-gulf.com/uploaded_files/userfiles/files/toolbox-for-minecraft-pe_GM479516143.pdfIn PDF document text
    • https://www.ati-gulf.com/uploaded_files/userfiles/files/coin-master-free-coins_GM406889139.pdfIn PDF document text
    • https://www.ati-gulf.com/uploaded_files/userfiles/files/roblox-redeem_GM431946152.pdfIn PDF document text
    • https://www.ati-gulf.com/uploaded_files/userfiles/files/roblox-jailbreak-hack_GM431946152.pdfIn PDF document text
    • https://www.ati-gulf.com/uploaded_files/userfiles/files/how-to-get-free-robux-hack-2021_GM431946152.pdfIn PDF document text
    • https://www.ati-gulf.com/uploaded_files/userfiles/files/free-roblox-clothes-boy_GM431946152.pdfIn PDF document text
    • https://www.ati-gulf.com/uploaded_files/userfiles/files/minecraft-java-edition-free-download_GM479516143.pdfIn PDF document text
    • https://www.ati-gulf.com/uploaded_files/userfiles/files/google-how-do-you-get-robux_GM431946152.pdfIn PDF document text
    • https://www.ati-gulf.com/uploaded_files/userfiles/files/how-to-earn-robux-by-playing-games_GM431946152.pdfIn PDF document text
    • https://www.ati-gulf.com/uploaded_files/userfiles/files/como-hackear-coin-master-2021_GM406889139.pdfIn PDF document text
    • https://www.ati-gulf.com/uploaded_files/userfiles/files/free-coins-and-spins-for-coin-master_GM406889139.pdfIn PDF document text
    • https://www.ati-gulf.com/uploaded_files/userfiles/files/free-robux-generator-no-human-verification-2021_GM431946152.pdfIn PDF document text
    • https://www.ati-gulf.com/uploaded_files/userfiles/files/how-to-get-free-tiktok-followers-without-human-verification_GM835599320.pdfIn PDF document text
    • https://www.ati-gulf.com/uploaded_files/userfiles/files/rbxcity-free-robux_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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_004_off00005499.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x5499 25720 bytes
SHA-256: 55d7f92e3b80100171f52303668cc477a99a02b9b667f35bd0f199ceb5c246bb
font_01_sfnt_off000090a5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x90A5 2828 bytes
SHA-256: db1860fd79a3f2cbe32e2bada3ba4c68a2d581b7a24294387cd777233cc9cef6
font_02_sfnt_off00009a5c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9A5C 19264 bytes
SHA-256: 3f8803aa514030256ef3f95c1be307d3aa8bc976f7e0246e629489c2b7ab765b

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