Malicious PDF — malware analysis report

Static analysis result for SHA-256 0441eb010c91191c…

MALICIOUS

PDF

42.6 KB Created: 2020-08-16 13:54:36 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 88ad78517c98751348f93ef52d9158bd SHA-1: f9c0eeb4536d3d67dc182b1c977fadfc5abfb988 SHA-256: 0441eb010c91191c5576c32c12708bcfa8319da8b436fd3edd06177f74d3cc3d
194 Risk Score

Malware Insights

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

The PDF contains numerous links, many of which point to redirector infrastructure designed to obscure the final malicious destination. The document body text and embedded URLs suggest a lure related to 'Post Malone feeling whitney piano sheet music', which redirects to a known malicious URL. The ML classifier also strongly indicated maliciousness.

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=post+malone+feeling+whitney+piano+sheet+music In PDF document text
    • http://xedebutid.sepcal.online/uploads/1/3/1/3/131379732/vukijaxage.pdfIn PDF document text
    • http://files.leadyouhomeoriginals.com/uploads/1/3/1/3/131398574/3da0840a.pdfIn PDF document text
    • http://files.dylanness.com/uploads/1/3/0/9/130969819/860cb.pdfIn PDF document text
    • http://maxegeda.krmenterprise.com/uploads/1/3/0/7/130740178/6138270.pdfIn PDF document text
    • https://www.amchords.com/chords/1272018In PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9309/0714/files/wiruderilefabarog.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/1005/6615/files/pararezupabagimusemuxoni.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6560/6301/files/mirob.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6410/6901/files/dowifimemofuvusugedem.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/6195/3191/files/zuvir.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/6067/2165/files/jarirurilu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4953/3088/files/niwulirubezoxixafubixuza.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/2729/1544/files/76411264677.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/1793/4747/files/47292265609.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/6044/2774/files/zaxijigirerupepefiku.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/4976/1433/files/muslim_boy_names_in_urdu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5535/7852/files/fumokudinixoxiwemewetavo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/0408/4899/files/soxawaxowufujov.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00004e62.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4E62 5412 bytes
SHA-256: 1d0e602fe62f10f0990d5dbc92a1db507642fa6c33be4d158a93a9357c7f3d3a
font_01_sfnt_off000060ba.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x60BA 13656 bytes
SHA-256: 37b2dcc936299066dab33bbe85e3c8a342caa7f33cecd1876d0ce8e0afc54d5c
font_02_sfnt_off00008c7a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8C7A 4324 bytes
SHA-256: b50a2106bf82917db0cd3cf88f63c5e8cc3298b343ace5cffc591b35df33d24c

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