Malicious PDF — malware analysis report

Static analysis result for SHA-256 b67523f853f00215…

MALICIOUS

PDF

43.0 KB Created: 2020-08-16 16:05:16 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: d15947257b3fbdd6e9d34c5447d23221 SHA-1: e0dd8b1058ab7e8ce3e299fdef010c911b548a21 SHA-256: b67523f853f00215f62efa8da0e4f2ef900f9883b0ff11ca345986880ce7c786
194 Risk Score

Malware Insights

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

The PDF contains a lure for free Lightroom presets, directing users to a malicious redirector URL. The heuristic firings indicate the PDF is designed as a link farm to known malicious infrastructure. While no scripts were explicitly extracted, the PDF structure and embedded links suggest an attempt to redirect users to a malicious site, likely for phishing or malware distribution.

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.com/pify?keyword=lightroom+mobile+presets+free++2019 In PDF document text
    • http://sazob.dawnlyndiehl.com/uploads/1/3/0/8/130814328/lebik_xapabagig_reduza_paxilivujapetav.pdfIn PDF document text
    • http://files.wbpstars.com/uploads/1/3/1/4/131437243/846e278deb8.pdfIn PDF document text
    • http://files.mombabymelts.com/uploads/1/3/0/7/130775968/1449556.pdfIn PDF document text
    • http://jewimas.shopbelieveboutique.com/uploads/1/3/0/9/130969352/ab5d396.pdfIn PDF document text
    • http://xenapabav.iccueducation.org.uk/uploads/1/3/1/3/131379206/665f31b0228.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/1/0437/0595/8553/files/create_folder_python.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/0326/3650/files/64378682674.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/7276/6630/files/satekenabiboveramugijafun.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/9569/5267/files/22325416227.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/6097/7048/files/borodipijowixetul.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/4541/9165/files/design_of_machinery.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/5456/3477/files/odia_song_mp4_hd.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/6133/0598/files/natura_pest_control.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/5219/6249/files/sanoxuxugobozazaf.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/3864/5144/files/madinah_arabic_reader_book_8.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 2

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_off00006a45.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6A45 5668 bytes
SHA-256: 5fa9c2f45f73eb25a80684a3a55b5c62953f5a17a156ff1af79f8789fffa86b0
font_01_sfnt_off00007d7e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7D7E 9876 bytes
SHA-256: 435eb42d9e7bedbda7b64104ef5c57f5761fdb438ffc57469992adefbbecfa65

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