Malicious PDF — malware analysis report

Static analysis result for SHA-256 57409328663a938f…

MALICIOUS

PDF

102.8 KB Created: 2020-08-08 08:19:59 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 65f1df904c38992909d8326f60f66c45 SHA-1: 67fd40919aa19d1fc3854cdce17f1e507bec76f6 SHA-256: 57409328663a938fb21c85a5d1e53ba901ba9002e2168797d071353b5d936ad3
120 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF file contains a significant number of embedded links, with a critical heuristic firing indicating a link farm pointing to known malicious redirector infrastructure. The primary malicious URL identified is https://ttraff.com/pify?keyword=pseudo+denys+l+ar%25C3%25A9opagite+pdf. While the document body is heavily obfuscated, the presence of these links strongly suggests an attempt to lure users to malicious sites. No scripts were extracted from this sample.

Heuristics 3

  • 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.
  • 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=pseudo+denys+l+ar%25C3%25A9opagite+pdf
    • http://files.someoneelsemovie.com/uploads/1/3/0/7/130776826/7223251.pdf
    • http://files.communitycreditinc.com/uploads/1/3/1/4/131406751/gopugaka_besisurisero.pdf
    • http://files.tian-yi.co.uk/uploads/1/3/1/8/131871854/wikilebifotekosinek.pdf
    • https://cdn.shopify.com/s/files/1/0435/6577/7059/files/caves_of_qud_butchery.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/23063093424.pdf
    • https://cdn.shopify.com/s/files/1/0430/9703/0805/files/20794383595.pdf
    • https://cdn.shopify.com/s/files/1/0431/2917/6232/files/perbedaan_pteridophyta_bryophyta_dan_spermatophyta.pdf
    • https://cdn.shopify.com/s/files/1/0430/2258/1923/files/ruzijosovaj.pdf
    • https://cdn.shopify.com/s/files/1/0429/9925/1093/files/diloloviladareledazozap.pdf
    • https://cdn.shopify.com/s/files/1/0434/0105/2321/files/38600425206.pdf
    • https://cdn.shopify.com/s/files/1/0428/0100/4707/files/2716066315.pdf
    • https://cdn.shopify.com/s/files/1/0431/8189/9944/files/alternative_dispute_resolution_in_kenya.pdf
    • https://cdn.shopify.com/s/files/1/0435/5466/8705/files/medicinal_plants_images.pdf
    • https://cdn.shopify.com/s/files/1/0438/6599/7472/files/debate_topics_for_high_school.pdf
    • https://cdn.shopify.com/s/files/1/0430/6924/3549/files/sixumotup.pdf
    • https://cdn.shopify.com/s/files/1/0434/2241/7047/files/bajapojisidoviparori.pdf
    • https://cdn.shopify.com/s/files/1/0440/5706/7685/files/the_arrangers_of_marriage.pdf
    • https://cdn.shopify.com/s/files/1/0432/2571/0756/files/gufavirodipuv.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_off00015149.bin
a80339fa1e3189ca942651cac8dadae0c5f58b3d284331a766f346fc0aa5e37a
pdf-font-stream PDF embedded font (sfnt) at offset 0x15149 5456 bytes
font_01_sfnt_off000163af.bin
fd25f61748b62c3fd7ffc811f17cd80233dc22aaf0046355123357555dfb045d
pdf-font-stream PDF embedded font (sfnt) at offset 0x163AF 13104 bytes