Malicious PDF — malware analysis report

Static analysis result for SHA-256 178b9cc4eb3fb892…

MALICIOUS

PDF

38.0 KB Created: 2020-08-28 10:10:04 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 644b4247d0bc402e417d94ad6a74cc6b SHA-1: 9823438581e0f485f82fbe46a6963cd959e8901b SHA-256: 178b9cc4eb3fb89267413be05ca52416a0699fcca59fce2796db7ba003e01807
194 Risk Score

Malware Insights

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

The PDF contains multiple embedded links, with a critical heuristic firing for a malicious redirector. The document body, though obfuscated, contains text related to 'financial leverage formula' and the malicious redirector URL, suggesting a phishing or scam lure. The presence of numerous external PDF links also indicates a link farm, a common tactic for SEO poisoning to attract victims.

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=financial+leverage+formula+ipcc In PDF document text
    • http://xilaxezag.lforlupus.com/uploads/1/3/0/7/130775451/2663980.pdfIn PDF document text
    • http://bavibisu.seaofqibodywork.com/uploads/1/3/1/4/131412290/bunoridevokinimefa.pdfIn PDF document text
    • http://josifejol.luckyhensrescue.com/uploads/1/3/2/8/132814930/lujamegomewuzi.pdfIn PDF document text
    • http://files.drmenn.com/uploads/1/3/1/4/131438142/rovisuli.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/1/0433/1618/3198/files/17440772891.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6018/2692/files/39617109179.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/8935/3118/files/molecular_compounds_worksheet_key.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5448/1054/files/fundamentals_of_computer_graphics_shirley.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6823/5682/files/belly_dance_music.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/1790/3008/files/52364214424.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/7670/4669/files/carenado_phenom_100_x_plane.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/0765/3526/files/time_complexity_of_algorithms_in_data_structure.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_off000057b7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x57B7 5172 bytes
SHA-256: 7319ba79378278629b2479505e7629fccb5e418cb730b6619d611603eead79f1
font_01_sfnt_off00006942.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6942 10060 bytes
SHA-256: 96000fd11104744aa656df3a23576a9227874185a0f22531ad0791b5f821725b

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