Malicious PDF — malware analysis report

Static analysis result for SHA-256 228eca4bca2db0b6…

MALICIOUS

PDF

48.9 KB Created: 2020-08-14 09:30:16 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: ee5451c8a270e5b35a6d6e91007250af SHA-1: fd16aa482373e76e4bd4f2e6a39af9424c86a331 SHA-256: 228eca4bca2db0b63179ee94b6af784cecf30e6e17f08910a3f35b06651282c1
222 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.001 User Execution: Malicious Link T1059.001 PowerShell

The PDF contains a mass external link farm, with a primary malicious redirector URL pointing to 'ttraff.com'. The document body and heuristics indicate a callback phishing lure, suggesting the user should take immediate action. The presence of numerous PDF links, many hosted on Shopify, indicates a link farm designed to obscure the malicious redirector. No scripts were extracted, limiting the analysis of the payload delivery mechanism.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 7

  • 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.
  • Callback phishing phone lure medium SE_CALLBACK_LURE
    Document asks the user to call a phone number in billing, refund, subscription, fraud, or security context — consistent with callback phishing or tech-support scam patterns. Suppressed for legitimate-issuer (IRS/gov/official-form) or Microsoft license-boilerplate documents that carry no urgency or charge/dispute escalation.
  • Urgency / deadline lure low SE_URGENCY_LURE
    Document contains urgency or deadline language ('account will be terminated', 'action required within 24 hours', etc.) — useful context, but low-signal without other findings
  • 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=workers+comp+doctors+first+report In PDF document text
    • http://files.nchconference.org/uploads/1/3/0/8/130814342/gafibuv.pdfIn PDF document text
    • http://wobir.jisooleeauthor.com/uploads/1/3/1/1/131164250/0d5460ed5.pdfIn PDF document text
    • http://siwozag.sswfinc.com/uploads/1/3/0/8/130814526/bukibifipapu-wumixidojeb-tojiluvokud.pdfIn PDF document text
    • http://defaxap.awakening-spirit.net/uploads/1/3/1/4/131453494/vugofikalo-sedifitenipoved-gakudisap.pdfIn PDF document text
    • http://///www.ftc.govIn 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/1/0427/7128/4135/files/fagokefitemazokutemoj.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/9902/7611/files/tomimozarexezado.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/0813/1233/files/spore_formation_in_bacteria.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8366/1461/files/lifawafagikugatevaresagod.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/3504/0664/files/42084606245.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/2168/9254/files/wenefelutusonasezagu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7505/1424/files/pifejerudowinoron.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5100/7638/files/23970529249.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7547/7414/files/43603114100.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/1898/3323/files/23930616590.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9286/9281/files/physics_giancoli_6th_edition_solutions.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/2254/1219/files/sigawixipafegidejodule.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/5649/6794/files/55808947019.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0441/0333/6088/files/to_zanarkand_guitar_tab.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 3

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_off00007fb8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7FB8 5136 bytes
SHA-256: 1759dca3a33f0e4ab59881d66c1a3641b81e63e1bc76b68eba3bd27c682218d2
font_01_sfnt_off00009131.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9131 11068 bytes
SHA-256: 87465879c094d21e5bccfd7f2d0e74ccbeeb055087f7ffb4a7ffbbafbe24879a

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