Malicious PDF — malware analysis report

Static analysis result for SHA-256 ae14ac77910bfdf5…

MALICIOUS

PDF

37.1 KB Created: 2020-07-30 10:50:41 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 96aa1f5d1f4e459c26b9c4aa4844324c SHA-1: fb7a6f51c7feb5199826a6ca99795a8c4ccc902a SHA-256: ae14ac77910bfdf51075531e469ce24d1e450b89d5f54a692d0f6ca89c8a0c97
194 Risk Score

Malware Insights

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

The PDF contains numerous embedded links, with one specifically pointing to a known malicious redirector at 'https://ttraff.ru/pify?keyword=skf+slewing+bearing+catalogue+pdf'. The document body, though heavily obfuscated, appears to be a lure related to 'Skf slewing bearing catalogue pdf'. The presence of a link farm and the ML classifier's high confidence score further support a malicious intent, likely for phishing or malware delivery.

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=skf+slewing+bearing+catalogue+pdf In PDF document text
    • http://files.kakaengineering.com/uploads/1/3/0/7/130775619/8926720.pdfIn PDF document text
    • http://files.charlottechinchristianchurch.com/uploads/1/3/1/4/131437792/c1f7c.pdfIn PDF document text
    • http://files.millcreekbrangus.com/uploads/1/3/1/8/131856852/robatatabuvub_bemabat_fokube_wiwirurifiz.pdfIn PDF document text
    • http://files.ucpgreatchefs.com/uploads/1/3/2/6/132682976/nunavenerogopafab.pdfIn PDF document text
    • http://files.rainbowschoolmn.org/uploads/1/3/1/6/131606878/gulifefejalux.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/1/0428/9835/8432/files/70354855800.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8858/4605/files/tedoxuvam.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8484/1124/files/sosorikasegogu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/1720/6946/files/4966864763.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/4504/4892/files/zakukajeg.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/5100/8671/files/51072797083.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/4991/7347/files/zireju.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/9180/2777/files/51018943060.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1659/3312/files/73150905476.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0945/7825/files/60300251924.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/0380/3808/files/lupekesegev.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 6

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_off000054f9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x54F9 5604 bytes
SHA-256: 0ab4066b865ac4ba6034922ae29d3a0104b8939a3c0863c8eff40e0ced44bae7
font_01_sfnt_off0000681b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x681B 9148 bytes
SHA-256: da967a7c4c54741bdd8234157f17fe2926da9a34521405732c48053c5871729a

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