Malicious PDF — malware analysis report

Static analysis result for SHA-256 15bf7ca2d6702d49…

MALICIOUS

PDF

48.1 KB Created: 2020-08-26 14:42:49 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: ba7b6bd78a5c331f7df8b6bd075c46f9 SHA-1: 681ef12e0b38420aadb8ada1620b5870efe2dcf1 SHA-256: 15bf7ca2d6702d49af441bfa476f3bbc742274586594aff1b481356d5fd6b5dc
194 Risk Score

Malware Insights

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

The PDF contains embedded links that redirect to a malicious domain, masquerading as a 'Borderlands configuration tool'. The presence of numerous links to external PDFs, many hosted on Shopify, suggests a link farm or phishing lure. The ML classifier strongly indicates malicious intent, likely to redirect users to a malicious site for further exploitation.

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=borderlands+configuration+tool In PDF document text
    • http://files.kitchenpsycho.com/uploads/1/3/0/8/130874257/nabas-mozidijeguleru-labopewow-livuruwilejuxow.pdfIn PDF document text
    • http://files.themeditationpeople.com/uploads/1/3/1/3/131398246/9068154.pdfIn PDF document text
    • http://wukowofuz.athensprep.org/uploads/1/3/1/3/131383664/xemaxa.pdfIn PDF document text
    • http://figim.starmembership.org/uploads/1/3/1/4/131437689/tejozujajeb-kunodavumumo-kakakib.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/1/0431/4041/5644/files/sbi_online_challan_form.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6575/3241/files/adjectives_exercises_for_class_7.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/davunaxejapezuxipuwuwozom.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/3727/6825/files/aluminized_steel_sheet_specifications.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5623/3638/files/ncert_books_class_6_maths.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9213/2508/files/rotevawefifixokugugo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9961/9492/files/22284032087.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/5267/9836/files/86445486883.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8627/4977/files/fish_tycoon_2_magic_fish.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/6405/7238/files/lojamubetateretixadomejax.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/9074/8316/files/23054164919.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

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000794d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x794D 5240 bytes
SHA-256: fe2b64f6b90695e8bca47287b969a7288355a8112803f570b6e2d503db968f71
font_01_sfnt_off00008b29.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8B29 12660 bytes
SHA-256: b3928c3cdd769d92c21c2151c637bde6c932a6afedca6aa2c59d7c4bdeca1220