Malicious PDF — malware analysis report

Static analysis result for SHA-256 60ce91164469074f…

MALICIOUS

PDF

42.2 KB Created: 2021-05-19 13:39:58 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-27
MD5: 0ba93d3af85aba0ca3c61ea9112c1dca SHA-1: dda7b943d7f8ed666481fab28e6cb102f7a98787 SHA-256: 60ce91164469074ff2c0234ce745a94242b4c316ec7857ad95b535a2564247b7
102 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The PDF document contains numerous links to external websites, many of which are presented as PDF files related to game hacks and free in-game currency. The ML classifier strongly indicated maliciousness, and the presence of a link farm suggests an attempt to distribute malware or lead users to phishing sites. The document body, though heavily obfuscated, contains references to game hacks and URLs, reinforcing the lure.

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/1330123889/pubg-uc-2021-game-hack PDF link annotation
    • https://cosmosocean.com.tw/upload/files/coin-master-hack-tool-apk-download_GM406889139.pdfIn PDF document text
    • https://cosmosocean.com.tw/upload/files/coin-master-free-spins-link-today-ios_GM406889139.pdfIn PDF document text
    • https://cosmosocean.com.tw/upload/files/coin-master-free-spins-apk_GM406889139.pdfIn PDF document text
    • https://cosmosocean.com.tw/upload/files/coin-master-free-spins-generator-no-human-verification_GM406889139.pdfIn PDF document text
    • https://cosmosocean.com.tw/upload/files/how-to-get-free-roebucks-without-verification_GM431946152.pdfIn PDF document text
    • https://cosmosocean.com.tw/upload/files/hackear-juego-coin-master-espaol_GM406889139.pdfIn PDF document text
    • https://cosmosocean.com.tw/upload/files/how-to-get-free-robux-on-roblox-2021_GM431946152.pdfIn PDF document text
    • https://cosmosocean.com.tw/upload/files/easiest-coin-master-hack_GM406889139.pdfIn PDF document text
    • https://cosmosocean.com.tw/upload/files/free-robux-co_GM431946152.pdfIn PDF document text
    • https://cosmosocean.com.tw/upload/files/coin-master-free-spin-27_GM406889139.pdfIn PDF document text
    • https://cosmosocean.com.tw/upload/files/free-robux-today_GM431946152.pdfIn PDF document text
    • https://cosmosocean.com.tw/upload/files/minecraft-pe-apk-free-download_GM479516143.pdfIn PDF document text
    • https://cosmosocean.com.tw/upload/files/coin-master-free-spins-and-coins-2021_GM406889139.pdfIn PDF document text
    • https://cosmosocean.com.tw/upload/files/coin-master-links-2021_GM406889139.pdfIn PDF document text
    • https://cosmosocean.com.tw/upload/files/coin-master-game-2021-free-spin-link_GM406889139.pdfIn PDF document text
    • https://cosmosocean.com.tw/upload/files/legit-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • https://cosmosocean.com.tw/upload/files/hacker-coin-master_GM406889139.pdfIn PDF document text
    • https://cosmosocean.com.tw/upload/files/how-to-get-minecraft-windows-10-for-free-with-java_GM479516143.pdfIn PDF document text
    • https://cosmosocean.com.tw/upload/files/roblox-free-clothes-hack_GM431946152.pdfIn PDF document text
    • https://cosmosocean.com.tw/upload/files/how-to-get-free-robux-without-download-apps-or-survey_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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off00004833.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4833 27208 bytes
SHA-256: 1c234ad01016ce9f00eebed88606afab4fbde3be277d1d64420791f8c69c8912
font_01_sfnt_off000082a7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x82A7 18300 bytes
SHA-256: 792744c9184ca8e67024c25d81bb790eba3106c699a66d4813878fab3c321418

Open this report in the interactive analyzer, or submit your own file for analysis.