Malicious PDF — malware analysis report

Static analysis result for SHA-256 ddc054d287af41ec…

MALICIOUS

PDF

42.7 KB Created: 2020-08-28 00:46:06 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 3b7dc4c9eef9becdc6c363de570c1c1e SHA-1: 692d3fd4a8950e9ba15b3361c8c6db25fa5eadeb SHA-256: ddc054d287af41ecb069642955ddda9670a3ad17f7ae500f85eca83a0b4efa6a
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 a redirector service (ttraff.com) and other external PDF files hosted on various domains. This behavior is indicative of a link farm or a phishing lure designed to direct users to malicious content. The document body, though partially corrupted, contains the URL that triggered the malicious redirector heuristic.

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=aortic+stenosis+vs+mitral+regurgitation
    • http://pesoganez.citmamotorsports.com/uploads/1/3/1/1/131163908/9395040.pdf
    • http://files.whereinthewhirledisjon.com/uploads/1/3/0/9/130969800/18325.pdf
    • http://naset.srpconsultinggroup.org/uploads/1/3/1/4/131407668/6304355.pdf
    • http://lobulup.ukrsportsmuseumhof.org/uploads/1/3/1/4/131453540/8165013.pdf
    • https://cdn.shopify.com/s/files/1/0436/3078/8758/files/58779276648.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/ledoviz.pdf
    • https://cdn.shopify.com/s/files/1/0432/1984/5277/files/ketepapemoxabotov.pdf
    • https://cdn.shopify.com/s/files/1/0436/8944/3493/files/zozasabagoxafewutugizixep.pdf
    • https://cdn.shopify.com/s/files/1/0427/4746/1788/files/62362393723.pdf
    • https://cdn.shopify.com/s/files/1/0428/2885/7503/files/ficha_tecnica_avanza_2020.pdf
    • https://cdn.shopify.com/s/files/1/0428/5412/1635/files/61149659229.pdf
    • https://cdn.shopify.com/s/files/1/0429/7264/3491/files/activate_office_to_create_and_edit.pdf
    • https://cdn.shopify.com/s/files/1/0432/6785/0390/files/afsana_khan_song_mr_jatt.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_off00006a05.bin
6b90e31b624775c232e960762f1d4f8763f354de02a66aed74d7be2730c9b03c		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6A05 5168 bytes
font_01_sfnt_off00007b85.bin
b0d596e18867c21429aaa5ae36344f2ba56164705451ff11faf0c31aacba421e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7B85 10316 bytes

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