Malicious PDF — malware analysis report

Static analysis result for SHA-256 c7769efeaba7c9d0…

MALICIOUS

PDF

71.2 KB Created: 2020-08-02 04:04:05 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: b0b82e888028d14e02340b313ab39d24 SHA-1: 9624d5507ac3d27cb9140587f43bd29423253726 SHA-256: c7769efeaba7c9d08cc874da7778d2a5bac5ac93e4fbcf03850cd7efb370b7b0
194 Risk Score

Malware Insights

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

The PDF contains a significant number of embedded links, identified as a link farm. One of these links, 'https://ttraff.ru/pify?keyword=jasco+remote+codes', is flagged as a known malicious redirector. This suggests the document's primary purpose is to lure users to malicious sites, likely for phishing or to download further malware. The ML classifier also strongly indicated maliciousness.

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.ru/pify?keyword=jasco+remote+codes In PDF document text
    • http://files.george-ohagan.com/uploads/1/3/1/4/131452922/tuvanirutava.pdfIn PDF document text
    • http://files.poetic-healing.com/uploads/1/3/2/7/132740249/kezusasusavu.pdfIn PDF document text
    • http://files.pointfiveceilidh.com/uploads/1/3/1/4/131408256/0fd0afff061.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/1/0431/1023/6314/files/70438156110.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/3828/3678/files/tebovixovel.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0441/4255/9384/files/flight_attendant_manual.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6581/8789/files/28580750207.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/4916/5734/files/xerizopaje.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7692/7141/files/lipakus.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4133/3147/files/79152407765.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/1174/2628/files/zovusol.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0165/1105/files/plant_traits_pathfinder.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/1729/8329/files/65404753001.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/libutufisolefod.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/1474/1413/files/lelilezenazevar.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/3349/1606/files/kusuruzowalawolalewe.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 2

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_off0000cbcb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCBCB 5044 bytes
SHA-256: b77c1cad88c8a07d99acad7ecfeb7bc41a88e5d1437ef06eb5185dccd48af1d3
font_01_sfnt_off0000dcda.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDCDA 16720 bytes
SHA-256: 753947eb9b85d67927754fc006ba66c61a6ad31f75031cf8b78b316d1920fab2

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