Malicious PDF — malware analysis report

Static analysis result for SHA-256 d5231b40e2607783…

MALICIOUS

PDF

50.0 KB Created: 2020-08-13 08:07:45 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 060daaf0a540971e47c3c7e62c3d8731 SHA-1: 6c217e7efa2ddbf26dd36e119becc57e0b1959db SHA-256: d5231b40e26077831b5eeabda52061e578e8023d978c194aa430dd8aeb5c30db
194 Risk Score

Malware Insights

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

The PDF was flagged as malicious due to a high number of embedded links, a technique often used to distribute malware or conduct phishing attacks. One critical heuristic identified a link to a known malicious redirector infrastructure at 'https://ttraff.com/pify?keyword=atrahasis+epic+full+text+pdf'. The document body contains garbled text but includes this URL, suggesting it is the primary lure. The presence of numerous other PDF links, many pointing to potentially compromised or malicious domains, reinforces the assessment of a link farm attack pattern.

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=atrahasis+epic+full+text+pdf In PDF document text
    • http://nujigel.reavalleyfpd.org/uploads/1/3/0/9/130969060/zugasi_sojalenukijalod_vukifedixefedu.pdfIn PDF document text
    • http://kawalor.fightingillinibassclub.com/uploads/1/3/0/9/130969862/4238349.pdfIn PDF document text
    • http://files.rainsweptgame.com/uploads/1/3/1/0/131070762/e8912c2b91d1d.pdfIn PDF document text
    • http://files.rusticedenphotos.com/uploads/1/3/0/7/130739398/91bb7b561.pdfIn PDF document text
    • http://files.aquaattack.net/uploads/1/3/1/1/131163996/meduruwabujozawagute.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/1/0431/7796/7776/files/xosilezonuwarazep.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/1379/8050/files/crisis_addisoniana_tratamiento.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/7900/7398/files/mathematical_logic_a_course_with_exercises_part_ii.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8362/0757/files/86400220019.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/1186/5751/files/java_recursive_example.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/4815/7859/files/pikik.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9801/3845/files/43932219381.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8451/3434/files/prevailing_wage_washington_state.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3000/3358/files/61126677148.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0357/5447/files/rikexozi.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
🗂 Part of campaign: rusticedenphotos.com 3 samples

Related samples 7

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_off000086ba.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x86BA 5300 bytes
SHA-256: 594e16c4e2953c945aa0e8e9008b3e1411065759dca0d024a3c0fac7401c9813
font_01_sfnt_off000098bb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x98BB 10064 bytes
SHA-256: 123a4dcf0445fd0e5368daaf3c1921f2f511dd61ac5286b5441de43cddd8530f

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