Malicious PDF — malware analysis report

Static analysis result for SHA-256 d44aedac61ed3e73…

MALICIOUS

PDF

41.6 KB Created: 2020-08-19 09:11:11 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: ed8da754d27722a2310e6c79ebaf7f1a SHA-1: d143bbc720fae6ec1e8bacd3aeec6312afd9a66c SHA-256: d44aedac61ed3e734b1666c60efb844094eeb0a72d814a2e0eedab3357ca1184
194 Risk Score

Malware Insights

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

The PDF contains a high density of external links, many pointing to what appears to be a link farm designed for SEO manipulation. One critical heuristic identified a link to a known malicious redirector, 'ttraff.cc', which is likely used to funnel victims to a phishing or malware distribution site. The document body, though partially corrupted, includes the same URL, reinforcing the malicious intent. The ML classifier also strongly indicated maliciousness.

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=magus+pathfinder+guide+kensai In PDF document text
    • http://files.xiaoluliuart.com/uploads/1/3/0/8/130813777/winiwujememegup.pdfIn PDF document text
    • http://judex.mathiascompanies.com/uploads/1/3/0/8/130813765/d19fe53c5fe346e.pdfIn PDF document text
    • http://files.relianceservicesllc.com/uploads/1/3/2/6/132696104/5a0f0d3688bd0a.pdfIn PDF document text
    • http://viraje.thewoolworkshop.com/uploads/1/3/0/7/130775320/zowipa-rudum-liruwawif.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/1/0437/2201/4870/files/lavamotilub.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4642/8062/files/11098838688.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/1509/3924/files/boot_camp_music_free.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/2641/4748/files/nifemaliwezosobojeluxod.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/3810/5000/files/worak.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/6249/2310/files/sample_business_case_template_ppt.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/2340/8032/files/81759442968.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/5167/9898/files/afficheur_lcd_i2c.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/7287/8747/files/govireturen.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/6681/7689/files/givelurakisixojom.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/4982/9023/files/biodata_format_for_marriage_for_boy_in_marathi.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 2

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_off000064d5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x64D5 5340 bytes
SHA-256: fc5669dd9cd4865ed4315abb77c5286a3d2a81110efa8ffe673406c357be3a57
font_01_sfnt_off00007700.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7700 10192 bytes
SHA-256: 2ac075fcfd246a5d665976089756c0c28598cfd293db85b59c39f8fac711a8e3

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