Malicious PDF — malware analysis report

Static analysis result for SHA-256 ce04feaa5ee11913…

MALICIOUS

PDF

40.3 KB Created: 2020-08-26 02:54:29 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 5fc0865b59d8214aaaaa81320024c984 SHA-1: 1fcef966d17c4cafb6bba8f121ff3d1b848bb872 SHA-256: ce04feaa5ee119131fa924c54dbbd07ff10660427bfdc6657fd7b37e322beab4
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, many of which point to benign Shopify domains, but one critical link directs to a known malicious redirector. This suggests a link farm or SEO poisoning tactic designed to lure users to malicious infrastructure. The primary malicious URL identified is https://ttraff.com/pify?keyword=mosaic+hop+substitute, which is likely used to redirect users to a further malicious destination.

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=mosaic+hop+substitute
    • http://files.prodanpianostudio.com/uploads/1/3/1/3/131398332/wegap.pdf
    • http://widevow.alaalohagirlsstate.org/uploads/1/3/1/3/131379179/cfbd7d0b09d1932.pdf
    • https://cdn.shopify.com/s/files/1/0440/2606/9157/files/relays_used_for_transformer_protection.pdf
    • https://cdn.shopify.com/s/files/1/0434/7500/9686/files/18243997319.pdf
    • https://cdn.shopify.com/s/files/1/0433/1307/0238/files/seredebitibinazebixikip.pdf
    • https://cdn.shopify.com/s/files/1/0434/3195/2536/files/394440026.pdf
    • https://cdn.shopify.com/s/files/1/0431/6574/5312/files/wededibugolegux.pdf
    • https://cdn.shopify.com/s/files/1/0430/7006/2754/files/tomidotexurilabilujedulol.pdf
    • https://cdn.shopify.com/s/files/1/0432/2846/3271/files/maraluguvagarovol.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_off00005fc2.bin
c6ee1244d9400d5c8f05bda89dcf8c023ae752c8185126c3b18534ab630b1490		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5FC2 5040 bytes
font_01_sfnt_off000070e5.bin
5ce2ae209d2403868e87d8fcdc58e98e25446764680d5b7e3cf70df3f24937d7		 pdf-font-stream PDF embedded font (sfnt) at offset 0x70E5 10584 bytes

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