Malicious PDF — malware analysis report

Static analysis result for SHA-256 d4f355ccbac2fd4f…

MALICIOUS

PDF

47.5 KB Created: 2020-08-11 12:48:27 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 44594b6b4002c7f4ec51a3512d615db5 SHA-1: ca2ec5ea4d38901f7a471f3869ac22e6b8315e0e SHA-256: d4f355ccbac2fd4fcb2e3e690a960337377b3922bca67954f004fdeed810278c
120 Risk Score

Malware Insights

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

The PDF contains a mass of external links, many pointing to Shopify domains, but one critical link directs to a known malicious redirector. The document body, though heavily garbled, contains the same URL as the malicious redirector, suggesting it's the intended lure. This indicates a likely phishing or scam attempt designed to redirect users to malicious infrastructure.

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=the+iliad+characters+pdf
    • http://files.tophcpa.com/uploads/1/3/1/4/131437029/4747248.pdf
    • http://basib.kellycurtisphoto.com/uploads/1/3/1/4/131454024/pezolosaxebobe-pudojuwogozo.pdf
    • http://files.smafarms.com/uploads/1/3/2/3/132303118/7071631.pdf
    • http://wusutivu.blublissbotanicals.com/uploads/1/3/1/0/131069839/a7f899.pdf
    • http://files.the-wandering-eye.com/uploads/1/3/2/6/132682731/d3dbe3.pdf
    • https://cdn.shopify.com/s/files/1/0428/4776/4636/files/rotork_pneumatic_actuator_catalogue.pdf
    • https://cdn.shopify.com/s/files/1/0438/1910/6466/files/dizirujupilasazu.pdf
    • https://cdn.shopify.com/s/files/1/0434/1386/4604/files/gugoboruzesiniwodedilabup.pdf
    • https://cdn.shopify.com/s/files/1/0433/3764/6245/files/damifutofufitumu.pdf
    • https://cdn.shopify.com/s/files/1/0432/7401/0782/files/anorexia_nerviosa_y_bulimia_amenazas_a_la_autonoma.pdf
    • https://cdn.shopify.com/s/files/1/0440/9583/2216/files/30523095160.pdf
    • https://cdn.shopify.com/s/files/1/0428/2528/5798/files/jukemuv.pdf
    • https://cdn.shopify.com/s/files/1/0431/2930/7293/files/7419552919.pdf
    • https://cdn.shopify.com/s/files/1/0435/1744/4264/files/rugolipegun.pdf
    • https://cdn.shopify.com/s/files/1/0435/9651/3448/files/autismo_que_es.pdf
    • https://cdn.shopify.com/s/files/1/0440/6745/5128/files/td_ameritrade_application.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_off00006f82.bin
8992137d2c71fb4949c3819151eaf870b2144e5091dfedaf4385452c03af3fce		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6F82 5192 bytes
font_01_sfnt_off0000811e.bin
a9bd7eec030ff2383f4e437c00684a3885c7ea0336b24f6aae4401cf10f53505		 pdf-font-stream PDF embedded font (sfnt) at offset 0x811E 15820 bytes

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