Malicious PDF — malware analysis report

Static analysis result for SHA-256 719860784add847f…

MALICIOUS

PDF

42.5 KB Created: 2020-08-18 21:17:41 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 0f57afc8173844dbc37add86ea5354c4 SHA-1: 1047371261f7b32c3cbf9f1788348c50d4811f4d SHA-256: 719860784add847f53d09d540379714d04160bf0f7d1ebde3abfa000330827f4
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

This PDF document contains numerous embedded links, many of which point to a redirector infrastructure. The primary lure appears to be a "Caravan stories leveling guide" which redirects to a malicious URL. The ML classifier strongly indicates maliciousness, and the presence of multiple SEO-optimized PDF links suggests a link farm or phishing campaign. No scripts were extracted, but the embedded links are the primary attack vector.

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.ru/pify?keyword=caravan+stories+leveling+guide In PDF document text
    • http://files.centerforwomenfaithandleadership.org/uploads/1/3/1/6/131637606/mumolizit.pdfIn PDF document text
    • http://files.gallionconsulting.com/uploads/1/3/0/9/130969548/juwokusemor_dawuvi_mapuvu.pdfIn PDF document text
    • http://gedonamu.speakinglifehealthcare.com/uploads/1/3/1/8/131856772/e1f6006.pdfIn PDF document text
    • http://files.mikesbrass.com/uploads/1/3/0/9/130970015/zegameluwona.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/1/0428/2816/9383/files/84748891007.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/4286/4289/files/preos_de_drenagem_linftica_manual.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/1312/7844/files/naruto_shippuden_episode_336_english_dubbed.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/8346/3832/files/82926312277.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/4981/8024/files/maxegumobom.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/2710/2876/files/funcion_sistema_renina_angiotensina_aldosterona.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/4995/0111/files/jowoj.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0448/3697/8850/files/credit_risk_in_banks.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5018/0503/files/access_for_mac.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/5045/1623/files/58685095130.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_off00006938.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6938 4960 bytes
SHA-256: beb4d1f64eed0500a3800168855c579d6904a745d9c89fc536babcee62b5c072
font_01_sfnt_off00007a2c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7A2C 10260 bytes
SHA-256: d3ab2fede6320e637bee37c2058f058c82905788553b3ffccc6a78981891b011

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