Malicious PDF — malware analysis report

Static analysis result for SHA-256 573efe5b7e6c50e8…

MALICIOUS

PDF

49.3 KB Created: 2020-07-30 05:33:16 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 7915b74d113683d0218cb05c7ed0e64a SHA-1: 3b205cb37f43d2d07c4982d29d961d880b43b09f SHA-256: 573efe5b7e6c50e88f41ecdd82116f38a61b8f46fd5d9cb602bae40d86534aee
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1200 Hardware Addends T1059.001 PowerShell

The PDF contains a mass external link farm, with one critical link pointing to a known malicious redirector. The document body, though heavily obfuscated, appears to be a lure related to 'theory of social media addiction pdf'. The primary attack vector is likely social engineering via a malicious link embedded within the PDF.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 5

  • 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.
  • Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINK
    PDF embeds an image with little or no body text and a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the 'free ebook / solution-manual / document download' phishing family that ranks for natural-language search queries and routes the user into a payload/redirect chain. The PDF carries no exploit; the risk is the linked destination. Flagged structurally (image lure + SEO redirector) so it does not depend on a ClamAV/ML signature, and regardless of how many filler text pages the lure carries.
  • Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL
    The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
  • 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.cc/pify?keyword=theory+of+social+media+addiction+pdf In PDF document text
    • http://files.sadhanayama.com/uploads/1/3/0/7/130776016/xuruwanuli-sepajujowij-mufeg-gebubizunesipel.pdfIn PDF document text
    • http://files.ettinstitute.com/uploads/1/3/0/7/130739063/13129fd2ad2a.pdfIn PDF document text
    • http://files.bradschmidtdesigns.com/uploads/1/3/1/8/131857041/zevamimode.pdfIn PDF document text
    • http://files.barnontheweb.com/uploads/1/3/0/7/130775151/senidojiwovodemo.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8833/9361/files/56969403934.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/1994/3579/files/moxizefumavemupex.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/0940/1254/files/67002928433.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/2378/5370/files/lakapalatuxawivurosino.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/1523/3948/files/lutajegiwoloxijip.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/7628/7648/files/31046482753.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6528/6566/files/14431074869.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0563/9836/files/nexit.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/0487/9267/files/86284077034.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/5658/5111/files/rijivoxugovilex.pdfIn PDF document text
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
    • http://purl.org/dc/elements/1.1/In PDF document text
    • http://ns.adobe.com/pdf/1.3/In PDF document text
    • http://ns.adobe.com/xap/1.0/In PDF document text
    • http://ns.adobe.com/xap/1.0/mm/In PDF document text
    • http://ns.adobe.com/xap/1.0/rights/In PDF document text
    • http://scripts.sil.org/OFLIn PDF document text

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000084d3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x84D3 5232 bytes
SHA-256: 93d3282356f21c0ac07340f70d7c9eaa5c6fdddd820a35b8b189181e5b907861
font_01_sfnt_off00009680.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9680 9920 bytes
SHA-256: 48a11fe4552c445d2278cc9b0620e49152ed2ba77c895905947c15187b1ec545

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