Malicious PDF — malware analysis report

Static analysis result for SHA-256 1abc5a641947255c…

MALICIOUS

PDF

55.0 KB Created: 2020-08-08 20:50:52 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 7a8729a03273915fd030aa7cdb59349c SHA-1: 208e1139679a1cab38af3a90e3203e317b00cc8a SHA-256: 1abc5a641947255c65270e13215d2f5064304c7524393fb45daed1d0d20d895e
120 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded links, many of which point to a link farm hosted on Shopify. One of the primary links, 'https://ttraff.com/pify?keyword=accounting+process+and+principles+pdf', is identified as a malicious redirector. This suggests the document is designed to lead users to malicious infrastructure, likely for phishing or malware distribution.

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=accounting+process+and+principles+pdf
    • http://files.lukaswolfacupuncture.com/uploads/1/3/1/8/131871720/2635b399.pdf
    • http://files.driggssnowscapes.org/uploads/1/3/1/4/131453252/287445.pdf
    • http://files.whatdowewantfilms.com/uploads/1/3/0/7/130739174/3856100.pdf
    • http://files.adelynsartcorner.com/uploads/1/3/0/7/130775033/5396177.pdf
    • https://cdn.shopify.com/s/files/1/0434/7818/8198/files/berliner_platz_3_neu_hrtexte.pdf
    • https://cdn.shopify.com/s/files/1/0427/3248/6823/files/puvibutivokajita.pdf
    • https://cdn.shopify.com/s/files/1/0434/4909/0200/files/github_how_to_create_a_branch.pdf
    • https://cdn.shopify.com/s/files/1/0432/6660/5219/files/zizizerupufesoni.pdf
    • https://cdn.shopify.com/s/files/1/0432/7538/7043/files/zerixixip.pdf
    • https://cdn.shopify.com/s/files/1/0431/8425/9231/files/como_hacer_un_ensayo_descriptivo.pdf
    • https://cdn.shopify.com/s/files/1/0434/4371/6262/files/kokufanolofele.pdf
    • https://cdn.shopify.com/s/files/1/0431/3487/7847/files/napubawolakumodisekutikig.pdf
    • https://cdn.shopify.com/s/files/1/0429/8457/1031/files/jixepigopamimow.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/14192803693.pdf
    • https://cdn.shopify.com/s/files/1/0432/5687/3128/files/xulesobakikikokoguxuvomim.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_off00009934.bin
8ca4c3a92ff6b4dd782b6af2c471000b32176f4d7c85a63def1f8f2c66703070		 pdf-font-stream PDF embedded font (sfnt) at offset 0x9934 5312 bytes
font_01_sfnt_off0000ab5a.bin
b875939b6f86aaa0f1e9315ab1af6c9b8a27665182214e1e615d758a518422b3		 pdf-font-stream PDF embedded font (sfnt) at offset 0xAB5A 10536 bytes

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