Malicious PDF — malware analysis report

Static analysis result for SHA-256 49a97559e6891389…

MALICIOUS

PDF

42.4 KB Created: 2020-08-24 15:03:17 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: d5d3dd3beafd626c8b93d9cb54de583a SHA-1: 6d10f2e4e48fd30935f7d4e699e55fe5abbdd27c SHA-256: 49a97559e68913892fb1ec3889353f35689cf0319f51ed22b4dc576bb7204713
202 Risk Score

Malware Insights

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

The PDF contains numerous links, many pointing to Shopify domains, but one critical link redirects through ttraff.com, a known malicious redirector. The document body, though heavily obfuscated, contains text related to 'K7 antivirus premium' and a URL that appears to be the same as the malicious redirector. This suggests a social engineering lure to trick users into downloading potentially unwanted or malicious software. No scripts were extracted from this sample.

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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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.com/pify?keyword=k7+antivirus+premium++for+windows+10 In PDF document text
    • http://files.sdg.services/uploads/1/3/0/9/130969300/posajefevagobir.pdfIn PDF document text
    • http://tonow.oldschoolsailing.com/uploads/1/3/1/6/131606295/zonijitekojo_xasonitamet_gilapuzenilekev_muraf.pdfIn PDF document text
    • http://dakox.lovemyfinds.com/uploads/1/3/1/4/131438234/gigibam.pdfIn PDF document text
    • http://files.jaredkrout.com/uploads/1/3/1/4/131409309/4c36b6b748d65.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/1/0433/7028/3173/files/unity_camera_script.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/9181/0717/files/medup.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7652/5988/files/mijamidusubo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9570/4227/files/asme_section_viii_division_2_part_5.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5866/7430/files/american_airlines_application.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/2068/1377/files/witinaleroxelu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/5976/4634/files/make_something_up_chuck_palahniuk.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9912/0033/files/xexetigasuvobizina.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3157/6226/files/chemical_bonding_notes.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/6163/9318/files/71922107174.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/2655/3755/files/davorurotewoduw.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6080/5280/files/51908156351.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_off000064b9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x64B9 5552 bytes
SHA-256: 67ddfb3825a6d5e85c2c0f8b25e43d4fbd961d7b253cc34faf0ab1611094c41c
font_01_sfnt_off000077a6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x77A6 10872 bytes
SHA-256: 6e7191e055f2ea5c31c8fc30ff86926d340ae4a7b49dbe988b09eb5164044de5

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