Malicious PDF — malware analysis report

Static analysis result for SHA-256 ef136c2301565ffa…

MALICIOUS

PDF

37.6 KB Created: 2020-08-19 15:17:09 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: d1acb72cba64b0c277689d50d8cb5af1 SHA-1: 6565bbfc02afeec1983502af4e1fca08cd7b29b0 SHA-256: ef136c2301565ffa052b156262088efeb9e4fc22306d022fe1b9fb0b16f5b03e
128 Risk Score

Malware Insights

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

The PDF contains a lure for a movie download, which is a common social engineering tactic. It embeds a link to `ttraff.com`, identified as a malicious redirector, likely to serve a secondary payload or phish credentials. The document also contains a large number of links to Shopify domains, forming a link farm, with one specifically identified as a redirector.

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.
  • 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
  • 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://ttraff.com/pify?keyword=barsaat+1995+full+movie+720p
    • http://files.claireannagarand.com/uploads/1/3/1/3/131379014/vofilejik.pdf
    • https://cdn.shopify.com/s/files/1/0437/1690/3080/files/47965569203.pdf
    • https://cdn.shopify.com/s/files/1/0433/1061/2644/files/48282068452.pdf
    • https://cdn.shopify.com/s/files/1/0432/2423/6199/files/mikujiwebamijavuputigu.pdf
    • https://cdn.shopify.com/s/files/1/0433/2018/0894/files/suzivite.pdf
    • https://cdn.shopify.com/s/files/1/0448/8429/5847/files/tanglewood_2020_schedule.pdf
    • https://cdn.shopify.com/s/files/1/0431/5018/0503/files/73406013606.pdf
    • https://cdn.shopify.com/s/files/1/0434/7317/4680/files/watabuvibivaned.pdf
    • https://cdn.shopify.com/s/files/1/0437/6687/4269/files/zomotumelumetidasugek.pdf
    • https://cdn.shopify.com/s/files/1/0435/1708/3803/files/18912731306.pdf
    • https://cdn.shopify.com/s/files/1/0432/8154/7424/files/fedotinasomitibib.pdf
    • https://cdn.shopify.com/s/files/1/0433/2358/8773/files/sosolabogunejipifufide.pdf
    • https://cdn.shopify.com/s/files/1/0447/0875/7657/files/31412945523.pdf
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://purl.org/dc/elements/1.1/
    • http://ns.adobe.com/pdf/1.3/
    • http://ns.adobe.com/xap/1.0/
    • http://ns.adobe.com/xap/1.0/mm/
    • http://ns.adobe.com/xap/1.0/rights/

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000533f.bin
04f168eb9fe3d1191471c928699d92b3c14f135b76ccdb421b95fc502b24f766		 pdf-font-stream PDF embedded font (sfnt) at offset 0x533F 5844 bytes
font_01_sfnt_off00006725.bin
e7967073ddef3897898380ec1316cd2959e81e6cfda69ba9cec15fb7dcd8efa4		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6725 10112 bytes

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