Malicious PDF — malware analysis report

Static analysis result for SHA-256 9887d26795a9c424…

MALICIOUS

PDF

44.7 KB Created: 2020-08-24 21:52:31 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 6c879fd7e6856bde2eead765b3cbf5ee SHA-1: 047215056e7421614fd4633e5e922b515d591188 SHA-256: 9887d26795a9c424bd2f0580e19b5350dff9aafe0eb481ad34b2bd5760d98593
120 Risk Score

Malware Insights

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

The PDF contains a mass of external links, many hosted on Shopify, designed to appear as legitimate documents. One primary link, 'https://ttraff.ru/pify?keyword=bluestacks+2018+windows+10', is identified as a malicious redirector. This suggests the document's purpose is to redirect users to malicious content, likely for phishing or malware distribution. No scripts were extracted, limiting the analysis of direct execution capabilities.

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.ru/pify?keyword=bluestacks+2018+windows+10
    • http://dukofevip.avayogabodywear.com/uploads/1/3/2/8/132816202/buvepuwupav-wusalaredelafe-bufegakizasov.pdf
    • https://cdn.shopify.com/s/files/1/0431/2154/1271/files/xinezararuratilupil.pdf
    • https://cdn.shopify.com/s/files/1/0431/8307/9584/files/canciones_faciles_para_guitarra.pdf
    • https://cdn.shopify.com/s/files/1/0433/9610/4348/files/xofabuwajedegiveli.pdf
    • https://cdn.shopify.com/s/files/1/0430/6649/1041/files/59895345696.pdf
    • https://cdn.shopify.com/s/files/1/0429/7365/9290/files/masofibefakovotaxugawaj.pdf
    • https://cdn.shopify.com/s/files/1/0430/4843/5861/files/isokinetic_sampling.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/46391305542.pdf
    • https://cdn.shopify.com/s/files/1/0438/6249/1286/files/7415711434.pdf
    • https://cdn.shopify.com/s/files/1/0437/6887/3112/files/logical_reasoning_test_with_answers.pdf
    • https://cdn.shopify.com/s/files/1/0432/5618/4992/files/vipunasavidezidofukutegu.pdf
    • https://cdn.shopify.com/s/files/1/0434/0868/7269/files/buvidemujazepelexebo.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_off00007021.bin
08b31fd812e9627dba023508644532e58adbadc8defc8dd47947b36958f82181		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7021 5560 bytes
font_01_sfnt_off0000833e.bin
68b85a714caf8e1e98c4233f09f798fce704bb77c8fc02e339ead10d0e3bb8e3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x833E 10208 bytes

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