Malicious PDF — malware analysis report

Static analysis result for SHA-256 389523ba34b2fc3e…

MALICIOUS

PDF

34.8 KB Created: 2020-09-20 23:41:46 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 02ba08fc37dae7a632f2065be8cf6a24 SHA-1: aaff5e033abeb17181ea018ca7554911c944903d SHA-256: 389523ba34b2fc3ef8b0eb66d0e422ed6d05121e952a6bda85220175e37500ca
194 Risk Score

Malware Insights

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

The PDF contains a malicious redirector link that leads to a link farm of other PDFs, indicating a phishing or social engineering attempt. The ML classifier also strongly flagged this PDF as malicious. The primary lure appears to be 'Solicit letter for death', which is highly suspicious.

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.club/wix?keyword=solicit+letter+for+death In PDF document text
    • http://files.jademusicschool.co.uk/uploads/1/3/2/6/132681443/vumix_xofaxinavir_bolapoga_gesule.pdfIn PDF document text
    • http://dowel.jimenezhhc.com/uploads/1/3/2/7/132710703/zenipasuwi.pdfIn PDF document text
    • http://files.emmakayonline.com/uploads/1/3/1/1/131163563/vafegegirosolema.pdfIn PDF document text
    • http://files.therevenuebasket.com/uploads/1/3/1/4/131455543/radakeraxetugizan.pdfIn PDF document text
    • http://dutiva.holisticcoachsg.com/uploads/1/3/1/6/131606218/3814806.pdfIn PDF document text
    • http://files.maigretfamilyfarm.com/uploads/1/3/1/3/131397960/fadasuwenifujutu.pdfIn PDF document text
    • http://files.owenashton.com/uploads/1/3/1/6/131637635/9737379.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/1/0433/7650/9080/files/dulodiguvekizugabimeva.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/5663/4785/files/69045197599.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0631/2098/files/evernote_meeting_note_templates.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9997/9930/files/tipasepo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/6735/9900/files/51828132912.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2799/6565/files/kosuwiwuzodidujo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/1987/8048/files/isabelle_movie_2019_parents_guide.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0482/0513/6024/files/doguwi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0444/4153/4631/files/malvino_electronic_principles.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
🗂 Part of campaign: jademusicschool.co.uk 3 samples

Related samples 5

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_off00004c5d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4C5D 5032 bytes
SHA-256: 177f380a889f22ccf2e927aac2748957e1bbdb8fd1bb05d7ff46743401a0f2a9
font_01_sfnt_off00005d6f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5D6F 9688 bytes
SHA-256: 208450e5078184868e16fc01bb82d460a78d78e8f786eb41ba962cd1acf46f59

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