Malicious PDF — malware analysis report

Static analysis result for SHA-256 856f1682e805f26b…

MALICIOUS

PDF

66.4 KB Created: 2020-08-24 19:18:22 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: d94f404b9e1fe346d4517a2f857a145c SHA-1: bf602d12b7e26610402ab49c93e0b284303bb212 SHA-256: 856f1682e805f26b1074a8dabbeb7eb388e9af2cc9bf67d49fb644a9471db75d
202 Risk Score

Malware Insights

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

The PDF contains embedded links that point to a redirector service, which is a common tactic for phishing or malware distribution. The document body, though heavily obfuscated, contains text that appears to be an annual report title, suggesting a lure. The presence of multiple external PDF links, some pointing to benign Shopify domains and others to unknown domains, further supports the idea of a link farm or redirection scheme.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 6

  • 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.
  • Fake invoice / payment lure low SE_INVOICE_LURE
    Document contains invoice or payment language paired with an action verb — useful context when combined with link, macro, or attachment indicators
  • 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=panacea+biotec+annual+report+2019 In PDF document text
    • http://files.kiarakzelcreations.com/uploads/1/3/1/6/131606362/ee2811d.pdfIn PDF document text
    • http://zemeparuv.omahabeadaffair.com/uploads/1/3/1/8/131871726/vonizuxoremevupuni.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/1/0427/4287/4278/files/xevubidi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/6975/1967/files/ampex_350_manual.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/8092/2789/files/bholanath_song_2019.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/5165/6102/files/movikobufasofiwokafinod.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9423/7599/files/sefegiwikemitijanudina.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/1624/7703/files/togejaw.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4721/4486/files/68954907131.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/4856/6933/files/rejovan.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/2857609843.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/6096/0159/files/favugozetiwosizuronefixa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/3714/5753/files/19619282389.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0465/1584/7318/files/adverse_opinion_audit_report_format.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9060/8285/files/buxujigadenepegawule.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_off0000c662.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC662 5372 bytes
SHA-256: 9ba0128688cc998674874cb30d798f528706db2400e46ebb5644ea151bb0c534
font_01_sfnt_off0000d8ac.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD8AC 10456 bytes
SHA-256: 526771b7f3469144bbec185592c5aaed8d2e672dd82d5c699a02ffdd6ad5de68

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