Malicious PDF — malware analysis report

Static analysis result for SHA-256 89e50d8041978f71…

MALICIOUS

PDF

35.5 KB Created: 2020-08-11 12:57:04 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: bd0ba460ffba36420b272eb3b3b24031 SHA-1: 0ffef1013000f9ea2255de6e7aaf7bf06e6ccabf SHA-256: 89e50d8041978f71ed2d539dbc721df9fc52e342bb01cd80f2ada28685667b77
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell T1204.002 Malicious Link

The PDF contains a mass of external links, including one to a known malicious redirector at `ttraff.cc`. The document body, though obfuscated, contains text referencing "careless whisper piano music pdf" and the malicious URL, suggesting a lure to trick users into clicking the link. 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.cc/pify?keyword=careless+whisper+piano+music+pdf In PDF document text
    • http://files.aschaxel.com/uploads/1/3/1/6/131637043/3430468.pdfIn PDF document text
    • http://files.janestraveladventures.com/uploads/1/3/2/8/132815054/zijogafebiw_lofanoxeximuzi_gokided.pdfIn PDF document text
    • http://files.practicalautomation.com/uploads/1/3/0/7/130740429/7385700.pdfIn PDF document text
    • http://files.stuffsarahsays.com/uploads/1/3/0/7/130776393/zunasivov-genumojufebasak.pdfIn PDF document text
    • http://files.wasatchballet.com/uploads/1/3/1/8/131856330/jalovuzimona_mabakuvajemeza.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/1/0434/6534/3133/files/kaferito.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/5477/4949/files/81618392555.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6109/2245/files/4706997293.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/1230/7618/files/5671956037.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/1561/8203/files/54791427272.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/1979/6643/files/atf_form_6.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/tikifulodu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5106/5243/files/fuwuremirezijeneb.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0446/7766/0825/files/cataract_classification.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/2270/5063/files/60926896945.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6492/6111/files/96937370151.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/5150/8131/files/gaduwades.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_off00004b89.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4B89 5392 bytes
SHA-256: 85d288ec9fe7c9149d33c88beea31b6bd3e12df9ee2ea3ecfa8868d0798f7b86
font_01_sfnt_off00005dc1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5DC1 10264 bytes
SHA-256: 113d0629cc13bfdbdc2bf066142e126d785bb2b63c618cf93d93fab7fa6c89dd

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