Malicious PDF — malware analysis report

Static analysis result for SHA-256 333e7ccc0161e835…

MALICIOUS

PDF

37.8 KB Created: 2020-08-29 14:18:03 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 7e8da6819e36b41de6b9ebd0ee0edd11 SHA-1: c070b9cd87009f30e5944e9c6db80217bc39d02c SHA-256: 333e7ccc0161e8355bc2e97f84070efdc0d83d169ccd238d1b4796e98aa65ada
120 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded links, identified as a PDF SEO link farm. One of these links, 'https://ttraff.cc/wix?keyword=f%25C3%25BCtuhat+%25C4%25B1+mekkiyye+ka%25C3%25A7+cilt', is flagged as a malicious redirector. This suggests the document's primary purpose is to lure users to malicious websites, likely for phishing or to download further malware.

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.cc/wix?keyword=f%25C3%25BCtuhat+%25C4%25B1+mekkiyye+ka%25C3%25A7+cilt
    • https://cdn.shopify.com/s/files/1/0431/5512/8480/files/65725919304.pdf
    • https://cdn.shopify.com/s/files/1/0427/9762/9596/files/79235469893.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/36149341097.pdf
    • https://cdn.shopify.com/s/files/1/0433/9440/0414/files/vapelujekezewiz.pdf
    • https://cdn.shopify.com/s/files/1/0430/0200/3609/files/traditional_cinderella_story.pdf
    • https://cdn.shopify.com/s/files/1/0445/4537/6420/files/crate_bx-_15.pdf
    • https://cdn.shopify.com/s/files/1/0433/0881/0398/files/tukonupibusazad.pdf
    • https://cdn.shopify.com/s/files/1/0435/2435/8308/files/kenmore_sewing_machine_repair_manual_free.pdf
    • https://cdn.shopify.com/s/files/1/0440/1886/0190/files/56755019331.pdf
    • https://cdn.shopify.com/s/files/1/0431/6902/2109/files/18079832486.pdf
    • https://cdn.shopify.com/s/files/1/0431/2635/8173/files/bolt_tightening_sequence.pdf
    • https://cdn.shopify.com/s/files/1/0433/9141/8526/files/sakeru.pdf
    • https://cdn.shopify.com/s/files/1/0433/5039/2984/files/86371770396.pdf
    • https://cdn.shopify.com/s/files/1/0427/9199/3500/files/75618603702.pdf
    • https://cdn.shopify.com/s/files/1/0437/0163/3177/files/artaud_anthology.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_off00005289.bin
056d0e029664a970edb3c8f7d0c4b5b35b6a6d0a466d4ce321e170e2c179c48d		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5289 5220 bytes
font_01_sfnt_off000063bc.bin
a67e27640a754742297505f97bb748f2a11b91de39e7be15a64120be97d1f9c8		 pdf-font-stream PDF embedded font (sfnt) at offset 0x63BC 11660 bytes

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