Malicious PDF — malware analysis report

Static analysis result for SHA-256 4338666a60cd7cbe…

MALICIOUS

PDF

41.2 KB Created: 2020-08-02 01:51:44 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: f26f22813b80c18eb09bd2a589ac003c SHA-1: 852e4ea03da5b2fa065ba67f0988c3840c4bf99f SHA-256: 4338666a60cd7cbe6d7abb30ee44446c77b9ccb44e84a2f9c89ea9044c6b3c79
322 Risk Score

Malware Insights

MITRE ATT&CK
T1204.002 Malicious File T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF contains numerous links, many pointing to Shopify domains hosting other PDFs, suggesting a link farm for SEO poisoning or traffic generation. One critical heuristic indicates a malicious redirector link to 'ttraff.com' with a query about 'is dashlane a virus', implying a lure to trick users into believing Dashlane is a virus. The document also instructs users to disable security software and install a browser extension, common social engineering tactics to facilitate malware delivery or credential theft. The presence of a malicious redirector and the social engineering lures strongly suggest a phishing or malware distribution campaign.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 9

  • 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.
  • Security software disable instruction high SE_SECURITY_BYPASS
    Document instructs the user to disable antivirus or security software — unusual for ordinary documents and high-risk in an unsolicited file
  • Browser extension / update installation lure high SE_BROWSER_INSTALL_LURE
    Document tells the user to install a browser extension, plugin, viewer, or browser update to view content — a common social-engineering path for credential theft and malware installation
  • Brand-impersonation credential phishing lure high SE_BRAND_CREDENTIAL_PHISH
    Document impersonates a well-known consumer brand and uses account-security / verification language ('unusual activity', 'account on hold', 'verify your account') to steer the reader to a credential-harvesting link. Corroborated by: call-to-action link host does not match the impersonated brand: https://ttraff.com/pify?keyword=is+dashlane+a+virus.
  • 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=is+dashlane+a+virus In PDF document text
    • http://files.rottenrottie.com/uploads/1/3/1/4/131482887/f979514e6021.pdfIn PDF document text
    • http://files.lasalservices.com/uploads/1/3/0/8/130874213/vesinafokuj.pdfIn PDF document text
    • http://files.alexandrmetlinski.com/uploads/1/3/0/7/130775647/964f6a7f.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/1/0429/7441/2949/files/93606875674.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/7398/4919/files/pofukipikopuxavag.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/zebegevuda.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/28650507632.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/6081/2183/files/nims_100b_answers.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5725/8395/files/kojunubojogi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/4146/5244/files/xafijalupimisukelewuwavar.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/pusowa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/1910/7480/files/72251281984.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/wonazonuv.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6921/0773/files/85267805383.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8991/1194/files/levofedofizatezenes.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_off0000651f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x651F 4908 bytes
SHA-256: 8c2198026e8e6854b4b8ac421b2ba28bbe5972a06fc7ba34ed230d7fd9591c43
font_01_sfnt_off000075ca.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x75CA 9980 bytes
SHA-256: 20cb55762b265782f3c61eb5cefbb4900cc204bae3fd98423f527e56116e873c

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