Malicious PDF — malware analysis report

Static analysis result for SHA-256 094c515ba9ec97e3…

MALICIOUS

PDF

40.6 KB Created: 2020-08-16 22:47:45 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: cda614b5ab8b2ce880e93703fc312df6 SHA-1: ebc07c48108de6f1f10c45897886f3c0e09264f4 SHA-256: 094c515ba9ec97e3e9bb90ebb4d93561632db1bc2941d99652a9851b39d93e74
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains a link to a known malicious redirector, ttraff.ru, which is disguised as an error message related to 'Android auto'. This redirector is part of a link farm designed to distribute malicious content. The ML classifier strongly indicates maliciousness, and the embedded URLs suggest a phishing or scam attempt.

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=android+auto+encountered+an+error+16 In PDF document text
    • http://files.ponderosaspecials.com/uploads/1/3/0/9/130969656/viditiwajavexim-waruwubibare-lumigiwep-tumutobox.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/1/0440/4586/1014/files/27168296990.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/0616/3105/files/lm386_audio_amplifier_circuit.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0447/0718/4793/files/a_modern_utopia_h_g_wells.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/6294/2101/files/best_android_phone_review_2019.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7937/6798/files/juvomujamageson.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/4417/5013/files/63439111576.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/1514/3587/files/20531837869.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9964/3286/files/31051581227.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/0558/1211/files/learn_javascript.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5628/3296/files/gogisegexum.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/4877/8400/files/jubojotapolu.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 1

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_off00005fa6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5FA6 4920 bytes
SHA-256: b8c28c3b0881c1a06fbf3a54abe1e825c5f384eba6b58476f6211f2a75f6dc0b
font_01_sfnt_off00007068.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7068 11248 bytes
SHA-256: 2d0c9439bab110d3279a57e8e49c17ba195abb97755419ecb018f9f94d980e6a

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