Malicious PDF — malware analysis report

Static analysis result for SHA-256 49781869e514eb0c…

MALICIOUS

PDF

39.3 KB Created: 2020-08-12 19:13:30 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 4462d6b6a2acc64b8cf8623055659647 SHA-1: 8d6cc892008dae6abb8e75847ed41c9dd2910316 SHA-256: 49781869e514eb0ceac3748b3e00630baff19b2a7ff0887ef61f752c4480dc5e
194 Risk Score

Malware Insights

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

The PDF contains a link to a known malicious redirector disguised as an 'Oscars 2016 winners list pdf'. The document body, though heavily obfuscated, also contains this URL. The presence of a link farm heuristic further suggests an attempt to distribute malicious content through seemingly benign documents. The primary attack vector is likely social engineering via a malicious link embedded within the PDF.

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/wb?keyword=oscars%202016%20winners%20list%20pdf In PDF document text
    • http://files.vincentianspca.org/uploads/1/3/0/9/130969790/7123067.pdfIn PDF document text
    • http://files.chriscruzboone.com/uploads/1/3/0/7/130775249/gozipuraka-niwanididoxev-xiwunisexom-bexepivobawe.pdfIn PDF document text
    • http://files.meganhigginson.com/uploads/1/3/1/0/131070611/7910132.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/1/0429/2021/4681/files/xawukoxukurunomixop.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7950/7870/files/solve_linear_equations.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1161/2572/files/igcse_acids_and_bases_notes.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/4659/8821/files/zobesijasepu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/4133/9030/files/free_grade_curve_calculator.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9165/6864/files/dictionnaire_de_l_academie_francaise.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5129/4619/files/biomedical_model_of_health_psychology.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/2087/6962/files/95791941576.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/nemevisofopanufu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3802/3592/files/673_king_street.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/4696/8218/files/mowajoriladejus.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6951/3632/files/bls_cpr_manual.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/3764/6245/files/lelujuzojovuniveribixun.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/4433/8838/files/jimavijubuvovomil.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00005b31.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5B31 5748 bytes
SHA-256: 2c0b132c57b36b182edb5539bedc6b5976c88e579de204f45c1ba842c270e7d4
font_01_sfnt_off00006ee2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6EE2 9796 bytes
SHA-256: f155cdf55a4f2076caaa32ba411bcc57aa412aad34d70d6fa52637c87e951868

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