Malicious PDF — malware analysis report

Static analysis result for SHA-256 25409b9354b45439…

MALICIOUS

PDF

43.6 KB Created: 2020-08-10 10:08:32 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 3f197025e1d9715fe09ed0d5746d7640 SHA-1: 196769c24df7ea8aef897188bdc7e60294c0e1dd SHA-256: 25409b9354b454397fc93a3ff2d0ad356c32b8655e5af2d009991fd79123865e
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF contains a link that redirects to a malicious URL, as indicated by the PDF_MALICIOUS_REDIRECTOR_LINK heuristic. The document body, though corrupted, suggests a lure related to 'learning stock trading'. The PDF also contains a large number of external links, many of which point to Shopify domains, but one of the primary links is to a known malicious redirector. The file is identified as a PDF, and the heuristics suggest it's designed to redirect users to malicious content.

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=belajar+saham+untuk+pemula+pdf In PDF document text
    • http://files.battsfamilypractitioners.com/uploads/1/3/2/6/132681771/5112845.pdfIn PDF document text
    • http://fakisajip.harmony42.com/uploads/1/3/0/7/130739275/lunitekowanevin-riluruzevogem.pdfIn PDF document text
    • http://files.returntoyourself.org/uploads/1/3/1/8/131871729/4642f35.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/1/0428/1355/4855/files/10828887373.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/1371/7662/files/jomukosuwiwetawomi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4054/6714/files/xifukunid.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/1386/4615/files/jitesarizotux.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0726/2367/files/babagobuxepizilixorox.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/8491/3563/files/nekozomanowuf.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0446/5029/9555/files/demo_pause_cs_go_command.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/0800/0163/files/rent_agreement_format_in_marathi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3110/9538/files/kiserujuviwemukavufenipu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/4489/6925/files/pesetimokomidik.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/7489/3477/files/85432196623.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 4

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_off00006c93.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6C93 5468 bytes
SHA-256: 5b0504b28403abef17e1909530b2cd9d6eaedea92229676d586eb17eb6b26085
font_01_sfnt_off00007f08.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7F08 10224 bytes
SHA-256: c1576f9de818f32f63c2d55a35ec0c5d28d56770c30f50db1cf4001f9822c801

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