Malicious PDF — malware analysis report

Static analysis result for SHA-256 c7020582b1a6a955…

MALICIOUS

PDF

55.7 KB Created: 2020-08-19 13:55:02 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 1ebd8ec6b186a4d28c37a26d5191fce9 SHA-1: a5c0f0e3c7af72cb99eb5d62cfca9ae241dfed53 SHA-256: c7020582b1a6a955151345ab28e8072209fd3b6b8832ee63dc237ec5a15e656d
194 Risk Score

Malware Insights

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

This PDF document contains a large number of embedded links, with one specifically identified as a malicious redirector. The ML classifier strongly indicated maliciousness. The document body appears to be obfuscated or corrupted, but the presence of numerous links, including a known malicious redirector, suggests an attempt to lure the user to a harmful destination. The primary attack pattern involves leveraging a link farm to disguise the ultimate malicious URL.

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=chudiya+de+tote+balkar+ankhila+song In PDF document text
    • http://files.graceoutloud.com/uploads/1/3/1/4/131438353/losewiveravujali.pdfIn PDF document text
    • http://files.jaimeweilandart.com/uploads/1/3/2/6/132681728/e3ea59.pdfIn PDF document text
    • http://mevimopib.beasleycounselingservices.com/uploads/1/3/0/9/130968973/rugizetanunapu.pdfIn PDF document text
    • http://files.pilotmarketing.net/uploads/1/3/0/8/130814466/vugegodikufivu.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/1/0431/6053/5196/files/30758679910.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0443/1986/7036/files/80849331008.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0270/7616/files/69864935234.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/4959/9654/files/gegojugex.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/9818/3582/files/refunibis.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/7485/5846/files/43865552509.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/7742/5565/files/bakra_bali_video.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2358/0839/files/tatalaksana_bronkitis_pada_anak.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/0882/5256/files/cataratas_del_iguazu_informacion_wikipedia.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0452/1938/1399/files/worthy_is_the_lamb_who_was_slain_chords.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_off0000905e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x905E 5296 bytes
SHA-256: a98ae70c1029c58e751fc7c2eda48c09e2de1a1cd40df4ea5f5b23658a6efc99
font_01_sfnt_off0000a25c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA25C 14792 bytes
SHA-256: c1cc42582300f6711dd7a15d8d2f9cf0da7b05a9c08189d4754e011e3b8e73d8

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