Malicious PDF — malware analysis report

Static analysis result for SHA-256 26dc8932b47df1b2…

MALICIOUS

PDF

42.5 KB Created: 2021-05-20 07:44:43 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: ecd02b7203e962513e45dc8e8d019d3a SHA-1: 66ac58959248a782867e288024429fd3baebab96 SHA-256: 26dc8932b47df1b277251c46b63eae6ccb5d33eb182c134276fdd5ca60d801b2
110 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains a malicious redirector link pointing to an application download disguised as a game cheat. It also employs social engineering by presenting a download button and a lure to install a browser extension or update, common tactics for malware distribution. The embedded URL is the primary indicator of malicious intent.

Machine Learning

  • Nyx PDF Classifier clean score 0.0128

Heuristics 4

  • 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.
  • Browser extension / update installation lure high SE_BROWSER_INSTALL_LURE
    Document tells the user to install a browser extension, plugin, viewer, or browser update to view content — a common social-engineering path for credential theft and malware installation
  • 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-free-spin_v1-0_apkpure-com-apk-game-hack In 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_002_off00002f96.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x2F96 26092 bytes
SHA-256: 43373b2f4ca44f2ed2e98522a98916ee765fa43e413d2cced18712a81aa66502
font_01_sfnt_off00006b53.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6B53 4028 bytes
SHA-256: a17c2a746d49ac23b23e38a371e32fddecfcd91b10cf42ff6155bff6b8a07e91
font_02_sfnt_off000078f4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x78F4 2788 bytes
SHA-256: 6fd7c7f447d66842f81aa8cf197935b17f22157d0c7e9f95622df1b5b4ddf530
font_03_sfnt_off000082e4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x82E4 18880 bytes
SHA-256: 88a3145118814f1ca56a49fdaa42276f83279c0cb4877069a643bb49da92f11f

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