Malicious PDF — malware analysis report

Static analysis result for SHA-256 11a36e4727060e21…

MALICIOUS

PDF

47.4 KB Created: 2020-08-07 06:43:59 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: c63aed298748d863d70b167f3b58e0b9 SHA-1: da0108e378f4153ccf9f73aeef9e759bc30d29b4 SHA-256: 11a36e4727060e21ebe58e20c0fe328c1286136895f1fb070982eaaa75cc8502
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a deceptive lure related to a popular game, "Descent into Avernus," to trick users into clicking embedded links. These links, particularly the one to `ttraff.com`, are identified as malicious redirectors designed to lead users to further malicious content. The sample also hosts a large number of links to other PDFs, suggesting a link farm or SEO manipulation tactic to increase visibility and traffic to malicious sites.

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.com/pify?keyword=d+d+5e+descent+into+avernus+pdf+download In PDF document text
    • http://wikis.streetwareaffiliated.com/uploads/1/3/0/7/130775918/2119181.pdfIn PDF document text
    • http://files.santasacksbyreno.com/uploads/1/3/2/8/132815050/04c2e4fbba.pdfIn PDF document text
    • http://files.mercymedicalarts.com/uploads/1/3/1/4/131406717/lilow-mufuwofenoser-sasilozifugam-pegewozalotar.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://cdn.shopify.com/s/files/1/0429/4891/9450/files/93145037484.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/1024/5279/files/slim_fit_180.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/2887/2359/files/redetoni.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6740/8535/files/nobuselepolug.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0521/3847/files/92135109049.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/4361/7959/files/weliragezawewapaxizunir.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/nulanevu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3631/9645/files/robidavetarufugitotezaz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/2131/0880/files/monolithic_dome.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/5249/1159/files/82891078863.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/8506/8456/files/rosom.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/48054684450.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 3

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

Full JSON: related samples API

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006cf0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6CF0 5308 bytes
SHA-256: a61a0470e0ecc7ef899458c10d13c85746e1db2903b6492d35451e1765e7ab4c
font_01_sfnt_off00007f21.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7F21 10384 bytes
SHA-256: c6484a98d725fcb82783aecb96922fc0c4b52bdb82a6d11595f71fde2b060637
font_02_sfnt_off0000a2a2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA2A2 4324 bytes
SHA-256: 9f355172d696dda274cac500966718f112ce76951f19577ac4888987ea6471b2

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