Malicious PDF — malware analysis report

Static analysis result for SHA-256 2f1e80d3d4ab6b2e…

MALICIOUS

PDF

41.1 KB Created: 2020-08-22 00:17:36 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: b4b49348abfdc988c433163d0e7477e0 SHA-1: 1c157b48990ec249b5660208aec85c4bc0a607c1 SHA-256: 2f1e80d3d4ab6b2e788d7fb7c425849088e587b2d96f0a80df38c9d133d23dad
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Phishing: Spearphishing Attachment T1059.001 Command and Scripting Interpreter: PowerShell

The PDF contains a link farm and a malicious redirector URL, indicating an attempt to drive traffic to malicious infrastructure. The document body, though heavily obfuscated, contains the same malicious URL and references to 'editing video online android', suggesting a lure. The presence of numerous external PDF links, many hosted on Shopify, further supports the link farm heuristic.

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=editing+video+online+android In PDF document text
    • http://files.threecreekaussies.com/uploads/1/3/2/7/132710655/sujut.pdfIn PDF document text
    • http://wufesoxog.greenhousewivesbathco.com/uploads/1/3/1/4/131410399/vawege.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/1/0432/0559/1200/files/33641071703.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4986/0765/files/42869577124.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/8668/3037/files/merge_sort_javascript.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2875/0234/files/latebanavofizik.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/1324/2005/files/84847912934.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/8253/7365/files/4398715053.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0461/0218/4100/files/7660473618.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0023/3110/files/ust_medical_certificate_form.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0448/2344/5666/files/thiruvalluvar_university_b._com_syllabus_2020.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7235/6505/files/cherry_bomb_movie.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9044/4445/files/liwulugoroxofuxi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/3686/8762/files/28756368586.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_off000062ea.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x62EA 4832 bytes
SHA-256: 4394c5e35c389b6d4e05bdefc7674318ce8b5a837eef4a06188fa243d2cc2636
font_01_sfnt_off00007371.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7371 10592 bytes
SHA-256: 3cea3bdea70ed590123bea5432bf72b88e767cf584136e6a32c605197d3f5a92

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