Malicious PDF — malware analysis report

Static analysis result for SHA-256 52ce8c2da3555cb7…

MALICIOUS

PDF

40.2 KB Created: 2020-08-07 21:18:30 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 1ed49f6f18d91bd4db874094d680e1c3 SHA-1: c58f58b33fa9ce8c0004f3a840bbb656a606578f SHA-256: 52ce8c2da3555cb70c00eb2d87527ee4ea41f453082f31a567de39ba79c6d02d
194 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing indicating it links to known malicious redirector infrastructure. The document body, though heavily obfuscated, contains the URL that triggered this finding. The PDF also exhibits characteristics of a link farm, with numerous embedded URLs pointing to external resources, many of which are benign Shopify links, but one critical link leads to a malicious redirector.

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=calisthenics+workout+routines+pdf In PDF document text
    • http://files.newfypoozoo.net/uploads/1/3/2/3/132302924/bacf41.pdfIn PDF document text
    • http://files.thesilkfamilyproject.com/uploads/1/3/1/4/131437740/livig.pdfIn PDF document text
    • http://files.csiiopenlearning.com/uploads/1/3/0/8/130813601/kezigotozafob_rejanefurevug_rodajomosivi_javidi.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/1/0429/9702/2879/files/linkin_park_somewhere_i_belong_lyrics.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1423/4017/files/maworeb.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/3516/4835/files/adobe_membership_cancel.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8071/2343/files/65607073660.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/0885/2117/files/31230067766.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/6628/6490/files/nawafif.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6083/8050/files/43244154385.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/safuginogatujato.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/4095/4773/files/adventure_time_ice_king.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/6569/4613/files/maneritedawu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/3651/7286/files/50765513942.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_off00005ed8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5ED8 5304 bytes
SHA-256: f9f83d97a6334b0c966f762f84212d3e3f47cb455f0b32c20bdc291f593a8dee
font_01_sfnt_off000070ec.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x70EC 10288 bytes
SHA-256: 9f8f449d2ea90817cfcf19a72a26a15d75339afbcbf8353b83b424586eb4693c

Open this report in the interactive analyzer, or submit your own file for analysis.