Malicious PDF — malware analysis report

Static analysis result for SHA-256 1fe7db77e047ce7a…

MALICIOUS

PDF

46.6 KB Created: 2020-08-25 07:32:34 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 5932af2aeb0c8454ee332c70a8923752 SHA-1: 3796bedd4cc0bb022a5c0b5ae8c0a4d709c0b07b SHA-256: 1fe7db77e047ce7accc9d46d6c316132452af455b0734c764003f4b4eddbaafa
194 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link, specifically pointing to 'ttraff.cc'. The document body, though heavily obfuscated, contains the same URL and text suggesting a lure related to a 'Cisco cpak- 100g- lr4 datasheet'. The presence of a large number of external PDF links, many hosted on Shopify, further indicates a link farm or distribution mechanism. The primary malicious IOC is the redirector URL.

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.cc/pify?keyword=cisco+cpak-+100g-+lr4+datasheet In PDF document text
    • http://files.tsceramics.com/uploads/1/3/1/4/131437930/zitiw-tasatololesapaw.pdfIn PDF document text
    • http://revuna.temposhop.co.uk/uploads/1/3/1/0/131070786/wimifoxiboxagaw.pdfIn PDF document text
    • http://mogolunug.barvinokseattle.org/uploads/1/3/1/3/131398140/burisarifigijod.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/1/0430/8641/3985/files/ruwepovosofesebisaxigim.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0461/9829/2638/files/xeweniwiko.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5187/5494/files/avenant_contrat_de_bail.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7006/2754/files/mecanismo_de_ao_dos_barbituricos.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/2117/9816/files/55182403413.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0462/4138/2560/files/carlsberg_brewery_malaysia_bhd_annual_report.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0332/2269/files/26918550299.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0459/7127/5943/files/tabloid_broadsheet_examples.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/69262577592.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9419/6902/files/95285327686.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/3771/0744/files/58889772788.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/9131/9200/files/english_topics_for_speaking.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/1311/8872/files/16968310610.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_off00007714.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7714 5616 bytes
SHA-256: b27f3e53ab10cf9f58b780fc79bef1f8f005c1170777870a328fe168ea096273
font_01_sfnt_off00008a2b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8A2B 10248 bytes
SHA-256: 9b0d4c346eb9de1e5bfbdbdcc9ac1b2610759165ca5e32affb973aed13343f5d

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