Malicious PDF — malware analysis report

Static analysis result for SHA-256 ace01fd5e2e880b5…

MALICIOUS

PDF

48.7 KB Created: 2020-07-30 14:03:27 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: c94c34414209336b9cde6bc315a43bc8 SHA-1: 102dbde40e650981b8f68dc399159a5dd23b027e SHA-256: ace01fd5e2e880b5d622cd0b07ab05450e92706cf34dc3b27a53f1f4e6ca7046
194 Risk Score

Malware Insights

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

The PDF contains numerous embedded links, with a critical heuristic firing indicating it redirects to known malicious infrastructure via 'ttraff.com'. Another critical heuristic identified a PDF link farm, suggesting an attempt to obscure the malicious destination by hosting many PDFs on domains like 'cdn.shopify.com'. The ML classifier strongly supports the malicious verdict.

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.com/pify?keyword=biological+hazards+in+laboratory+pdf In PDF document text
    • http://files.joeprest.com/uploads/1/3/0/9/130969993/wotufafebi_junoj_bejiwo_xaxaxokoxepu.pdfIn PDF document text
    • http://files.unicuspharma.com/uploads/1/3/0/7/130775046/b529bc9d6.pdfIn PDF document text
    • http://files.steppingstoneschildrencenter.com/uploads/1/3/2/6/132695200/2c169ef.pdfIn PDF document text
    • http://files.michellekschilling.com/uploads/1/3/1/8/131856476/kifazuxixevoval_lonudanejefojit_dajukubu.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/1/0437/5419/3047/files/sofevu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7140/6237/files/larubosixuvufidoxovelavol.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/8596/9048/files/66739568685.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5312/9640/files/25950171886.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6826/8456/files/gawoveronomipena.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2738/1920/files/zefasuliji.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/3411/5233/files/80814102029.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/8296/3361/files/daruwebaxanudeworikij.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/1172/6750/files/naliwiv.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/damegadunuje.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/6245/1611/files/wesepikezetuwubupawexa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/9536/7585/files/32330359679.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/3462/4679/files/48294457768.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 2

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_off00008137.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8137 5428 bytes
SHA-256: 21d82113a66cbdd4351406691fb52b1dfe708ee7d963bdf8ab6141a567a215bd
font_01_sfnt_off0000939f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x939F 9780 bytes
SHA-256: 5a3a948998b3f9741eeafd5019c88b864371643d853ad5c72a5b03ed9d2dc4dd

Open this report in the interactive analyzer, or submit your own file for analysis.