Malicious PDF — malware analysis report

Static analysis result for SHA-256 82f85cd0938c8f87…

MALICIOUS

PDF

51.0 KB Created: 2020-07-27 11:59:00 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 74b3574cef058694d92edcaec32b104f SHA-1: 5fc5e09cb494b8c878ba1b68bded8fd99b940eb0 SHA-256: 82f85cd0938c8f87f3ee4745f4513156235e613ea61360daae49b9e899e27c3f
120 Risk Score

Malware Insights

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

The PDF file contains a critical heuristic firing for a malicious redirector link, pointing to 'ttraff.com'. This indicates an attempt to lure the user to a potentially harmful site. Additionally, the PDF hosts a large number of external links, many hosted on Shopify, suggesting a link farm or SEO poisoning tactic to distribute malicious content. No scripts were extracted, but the embedded URL and the nature of the heuristics strongly suggest a phishing or redirection attack.

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=aparato+reproductor+femenino+y+masculino+pdf
    • http://files.fostercarecoalition.com/uploads/1/3/0/9/130969300/a7a22948ee4b4.pdf
    • http://files.lewesunleashed.org/uploads/1/3/2/6/132681501/laliku.pdf
    • http://files.gracecommunitycarshow.com/uploads/1/3/2/6/132681969/boditepazam-vedixanexe-kivaxot-niropu.pdf
    • http://files.devikafernando.com/uploads/1/3/0/7/130739037/bisototefezi.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/11147191401.pdf
    • https://cdn.shopify.com/s/files/1/0433/5943/6968/files/sudazarezepux.pdf
    • https://cdn.shopify.com/s/files/1/0438/1864/7709/files/mekiwuzikaxedexejajuniso.pdf
    • https://cdn.shopify.com/s/files/1/0433/3273/1038/files/51223452111.pdf
    • https://cdn.shopify.com/s/files/1/0432/3436/1503/files/38510897200.pdf
    • https://cdn.shopify.com/s/files/1/0430/5554/6517/files/64326253488.pdf
    • https://cdn.shopify.com/s/files/1/0430/8166/2628/files/92783908916.pdf
    • https://cdn.shopify.com/s/files/1/0435/2252/3288/files/79332496073.pdf
    • https://cdn.shopify.com/s/files/1/0431/7901/6360/files/pivolusawu.pdf
    • https://cdn.shopify.com/s/files/1/0437/6359/7466/files/xenulekamerugosurevuluro.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/
    • https://cdn.shopify.com/s/files/1/0438/1

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00008890.bin
fef8aa48e695899d8aae50498840fb65b996d07e47c4eaad120cc350a9bbc903		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8890 5272 bytes
font_01_sfnt_off00009a69.bin
f28aa6ffaa971538a34d83142008e80281ce5aa3021737f9d19e42106d182fb9		 pdf-font-stream PDF embedded font (sfnt) at offset 0x9A69 11232 bytes

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