Malicious PDF — malware analysis report

Static analysis result for SHA-256 657d5ca4c3b3557b…

MALICIOUS

PDF

40.0 KB Created: 2020-08-04 21:18:04 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 8374caa1584ac540be12aece173910ed SHA-1: 18445c6aa47f69fdf859ad73ae52d4483794ba0b SHA-256: 657d5ca4c3b3557b1a7e50da34cca6be92d2d297b7e92aff3100f5006b90be34
194 Risk Score

Malware Insights

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

The PDF contains embedded links that redirect to a known malicious redirector, suggesting a phishing or malware distribution attempt. The document body text, though partially obfuscated, includes keywords related to bank statements and passwords, reinforcing the lure. The presence of numerous external PDF links further indicates a link farm designed to distribute 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=canara+bank+credit+card+statement+pdf+password+format In PDF document text
    • http://files.caveofpixels.com/uploads/1/3/1/4/131411896/migafuvu.pdfIn PDF document text
    • http://files.toxicsofa.com/uploads/1/3/1/3/131382028/legomiwakim_mugalix_befomupokokuroj.pdfIn PDF document text
    • http://files.stmaryscountygardenclub.com/uploads/1/3/2/7/132741382/dusenofifu-jiwupigakedekug.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/1/0433/9322/0758/files/dozisusukalenubov.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/1896/0545/files/zoboresumasabiw.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/1512/6692/files/galeleviziwimixavid.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/0428/9439/files/kaboxuw.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/0772/8023/files/98749846392.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/1351/9006/files/58099765010.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/6818/6015/files/lamamej.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1141/5962/files/57414912239.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/0255/2742/files/74213742336.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/19441108854.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6785/0390/files/megowilu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9672/7961/files/wofegadepowapo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/7281/4245/files/xuzigemalebujew.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/9635/8565/files/log4j_xml_examples.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/1214/5823/files/kotibinaluzisodumotu.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 5

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_off00005db2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5DB2 5472 bytes
SHA-256: 966d5750611605d62fff9cb65f3d4b6f97998c41d238358940d446e5f38832f3
font_01_sfnt_off00007042.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7042 9992 bytes
SHA-256: 634482f1713ce339c4ece3fe6b67fc18620a0d6f82e30f837916a77cba0bc25f

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