Malicious PDF — malware analysis report

Static analysis result for SHA-256 2856cc4620507a3e…

MALICIOUS

PDF

49.3 KB Created: 2020-08-24 06:39:47 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 72c0a46a1aa76a9515776f2cf1c6081f SHA-1: a3a09e07bf8b93361918f27a557790832bfc692c SHA-256: 2856cc4620507a3e9a2dd3449f72874849d9acf4409b1c6666723a12d8426470
234 Risk Score

Malware Insights

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

The PDF contains a link to a known malicious redirector, ttraff.cc, which is designed to lead users to further malicious sites. The document also functions as a link farm, pointing to numerous external PDFs hosted on Shopify, likely to manipulate search engine results or distribute content. The 'SE_CLICKFIX' heuristic indicates the document may also instruct users to manually execute commands, a social engineering tactic to bypass security measures. No scripts were extracted, but the presence of malicious redirectors and link farming strongly suggests a phishing or malware distribution attempt.

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.
  • ClickFix social engineering attack high SE_CLICKFIX
    Document instructs the user to press Win+R or paste a command into a terminal — consistent with ClickFix attacks that bypass macro restrictions by tricking users into running malicious commands directly
  • 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=ffxi+cure+please+guide In PDF document text
    • http://vapigupi.saintgregorysileby.org/uploads/1/3/1/3/131380934/kotebogisarisaf-folijoma-rojugizaj.pdfIn PDF document text
    • http://files.abatelakechapter.com/uploads/1/3/1/3/131380175/tixufewikemusugov.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/1/0428/1407/9143/files/lewiwidaxojuse.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9388/5089/files/98725972900.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/1935/2740/files/apush_chapter_5_test_answers.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/8960/7321/files/angular_template_injection.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/2721/6037/files/cognitive_therapy_and_emotional_disorders.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/8537/9237/files/97723947178.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0459/1350/5941/files/weight_gain_diet_plan_for_female.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2940/5600/files/8197158929.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/1775/6062/files/bagowuxapisugetedojek.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/7589/4437/files/national_interest.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_off000082d9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x82D9 5348 bytes
SHA-256: 126d1717734ffb01d597ed8f42d1de3a89e5762179b4e0a038ec3a5107afa367
font_01_sfnt_off0000951a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x951A 10300 bytes
SHA-256: 62839c5e1c6b5bbcb1c8d97fb0212b0a85d7b0a4d8cd00675455beaeb7490948

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