Malicious PDF — malware analysis report

Static analysis result for SHA-256 036af7209713a738…

MALICIOUS

PDF

42.3 KB Created: 2021-05-12 18:05:30 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-27
MD5: efb15455c085036ed1870f230b53a2cb SHA-1: 4f39effd280d42b897c6b826240b3bff30571896 SHA-256: 036af7209713a738d43e7f9c7ede2accfe060553d9e8f9594022654469df0d90
102 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

The PDF document contains numerous embedded links to external websites, many of which are structured as SEO-optimized PDF files offering cheats or hacks for popular games. The presence of a 'download button' heuristic and the ML classifier's high confidence score indicate a malicious intent to redirect users to potentially harmful content. The primary lure appears to be fake offers for in-game currency and items.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9971

Heuristics 4

  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • 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.xyz/app/479516143/minecraft-free-minecoins-game-hack PDF link annotation
    • https://www.alarqam.ae/userfiles/files/coin-master-free-spins-ios-app_GM406889139.pdfIn PDF document text
    • https://www.alarqam.ae/userfiles/files/roblox-promo-code-to-get-free-robux_GM431946152.pdfIn PDF document text
    • https://www.alarqam.ae/userfiles/files/coin-master-hack-2021-free_GM406889139.pdfIn PDF document text
    • https://www.alarqam.ae/userfiles/files/coin-master-mod-apk-unlimited-spin-download-free-full-version_GM406889139.pdfIn PDF document text
    • https://www.alarqam.ae/userfiles/files/free-roblox-shirt-templates_GM431946152.pdfIn PDF document text
    • https://www.alarqam.ae/userfiles/files/coin-master-hacks-for-cards_GM406889139.pdfIn PDF document text
    • https://www.alarqam.ae/userfiles/files/free-robux-2021-no-human-verification_GM431946152.pdfIn PDF document text
    • https://www.alarqam.ae/userfiles/files/coin-master-free-spin-link-list_GM406889139.pdfIn PDF document text
    • https://www.alarqam.ae/userfiles/files/free-spins-coin-master-links-2021_GM406889139.pdfIn PDF document text
    • https://www.alarqam.ae/userfiles/files/minecraft-java-edition-key-free_GM479516143.pdfIn PDF document text
    • https://www.alarqam.ae/userfiles/files/coin-master-free-spins-save_GM406889139.pdfIn PDF document text
    • https://www.alarqam.ae/userfiles/files/how-to-get-free-robux-inspect_GM431946152.pdfIn PDF document text
    • https://www.alarqam.ae/userfiles/files/roblox-free-robux-no-verification_GM431946152.pdfIn PDF document text
    • https://www.alarqam.ae/userfiles/files/free-robux-hack-2021_GM431946152.pdfIn PDF document text
    • https://www.alarqam.ae/userfiles/files/roblox-people-girl_GM431946152.pdfIn PDF document text
    • https://www.alarqam.ae/userfiles/files/mine-minecraft-games-for-free_GM479516143.pdfIn PDF document text
    • https://www.alarqam.ae/userfiles/files/get-free-spins-coin-master-october-2021_GM406889139.pdfIn PDF document text
    • https://www.alarqam.ae/userfiles/files/a-lot-of-robux_GM431946152.pdfIn PDF document text
    • https://www.alarqam.ae/userfiles/files/how-to-get-free-robux-codes-2021_GM431946152.pdfIn PDF document text
    • https://www.alarqam.ae/userfiles/files/coin-master-links-2021_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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off00004ab6.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4AB6 25640 bytes
SHA-256: e2463ed57781e662b1c1c6b02eabda080c99c26d4ed14fefce20d4cb8283542b
font_01_sfnt_off000084f5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x84F5 17712 bytes
SHA-256: 84922fa40070066ef4f1a201e85f9de45244526ee00faa1dc92053ed0f889265

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