Malicious PDF — malware analysis report

Static analysis result for SHA-256 7be529b46c31e468…

MALICIOUS

PDF

40.8 KB Created: 2020-08-21 11:13:53 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: fee83a6501254666de5dfe5222dd87a8 SHA-1: 97e448a993d527a0ee349a5e4f3e42e49729508e SHA-256: 7be529b46c31e46859692c587675e0dde9dd3e6b0d1ec9bdc356348a77cf5cf2
194 Risk Score

Malware Insights

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

The PDF contains numerous links, many pointing to a redirector service, suggesting a link farm or phishing campaign. The document body, though malformed, contains text related to "European union brand guidelines" and includes the primary redirector URL, indicating a lure to entice users to click malicious links. The ML classifier strongly flagged this PDF as malicious, and heuristic rules confirm the presence of malicious redirector links and a link farm.

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=european+union+brand+guidelines In PDF document text
    • http://files.woodyshticks.com/uploads/1/3/1/3/131379612/ritozo_luwubuvilul_bizifodoli.pdfIn PDF document text
    • http://files.columbia-current.org/uploads/1/3/0/7/130739023/gajixatovexub.pdfIn PDF document text
    • http://temiruna.ahbuildingservices.com/uploads/1/3/1/0/131070450/6810865.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/1/0429/4203/8182/files/fagiraziseretofopetu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/gekisemegudifusoledo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/4112/8601/files/16421493976.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2347/4583/files/bonifaxuginupawi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/1752/7715/files/nugitukemimaxafepimavevip.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/4385/4235/files/wheel_of_monotony_cheat.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/dedijadexurusefux.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/5883/2294/files/riffe_lake_fishing.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1393/9110/files/ncert_chemistry_class_11_equilibrium.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/6640/7589/files/78933137085.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/1541/2632/files/zesuzumib.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_off0000639f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x639F 5224 bytes
SHA-256: 6651b13a706708fb2706f1852af2c8509bee37bfdb25d11c4b25ef2f842c21f2
font_01_sfnt_off00007567.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7567 9724 bytes
SHA-256: ed96d3a0cf27ccd967a92f1bff72d831f721b98740a7a2379f80e232616b05f7