Malicious PDF — malware analysis report

Static analysis result for SHA-256 d57afef7222bebdf…

MALICIOUS

PDF

45.6 KB Created: 2020-08-23 23:01:59 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 3398f97ac12cd30983b9f923fb939a84 SHA-1: 61e44247d04450d425de8876250879293b713040 SHA-256: d57afef7222bebdf4f657211c2f62fdd880ce520df9073b4bae54d708a4d1a26
194 Risk Score

Malware Insights

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

The PDF contains numerous embedded links, with one identified as a malicious redirector (ttraff.cc). The document body, though heavily obfuscated, contains references to 'boomslang snake information' and the malicious URL, suggesting a lure to entice users to click through the link farm. The ML classifier strongly indicated maliciousness, and the presence of a malicious redirector confirms a high likelihood of a phishing or redirection attack.

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=boomslang+snake+information In PDF document text
    • http://files.culbertsonandcompany.com/uploads/1/3/0/8/130874295/zasufadatalaz_jipakewanoz_monax_gelisi.pdfIn PDF document text
    • http://files.professional-tourguides.com/uploads/1/3/2/6/132682802/e1a034c803.pdfIn PDF document text
    • http://paguli.heartoftheprovider.ca/uploads/1/3/2/7/132710779/1450411.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/1/0437/2289/9608/files/78042548763.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/6127/9896/files/webolelabolilasuregemo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/2763/5096/files/baobab_tree_information.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/7985/0398/files/wodejizisi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/9040/1687/files/20683023547.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/0696/6430/files/vupenapo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0447/1613/0457/files/rujuto.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8124/4577/files/71232924025.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6211/6008/files/58475268385.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9702/2871/files/86937272137.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/4371/7274/files/basic_life_support_2020_guidelines.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 4

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_off00007621.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7621 5200 bytes
SHA-256: 50678edcb6525fe457fabbd0769cebbc8c18d877059b60d725d867b3ce081e5a
font_01_sfnt_off000087be.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x87BE 10128 bytes
SHA-256: dd1eeccb114dd4c3a182c48232630a270c3ee35c8eece46bda71c3506a277112

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