Malicious PDF — malware analysis report

Static analysis result for SHA-256 1bf07f1e30c70fcd…

MALICIOUS

PDF

43.4 KB Created: 2020-08-08 16:55:35 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 0dac1a5dded65328ff6796ee772e3beb SHA-1: ccbf5e847b95ad785c9ac797f710934b7abf80df SHA-256: 1bf07f1e30c70fcdd1f4b8596c597e5c303b267f30c951f2e9430d736139896a
194 Risk Score

Malware Insights

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

The PDF contains a link to a known malicious redirector, ttraff.cc, which is designed to lead users to further malicious content. The document body, though heavily obfuscated, contains the same URL and appears to be a lure related to 'Transportadores de cangilones pdf'. The presence of numerous external PDF links, many hosted on Shopify, suggests a link farm or SEO poisoning attempt to increase visibility of the malicious content. No scripts were extracted, but the primary malicious action is the redirection to the malicious 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=transportadores+de+cangilones+pdf In PDF document text
    • http://files.mddedcelks.org/uploads/1/3/1/3/131383998/7162934.pdfIn PDF document text
    • http://files.kdwineimports.com/uploads/1/3/2/6/132680949/5426331.pdfIn PDF document text
    • http://files.bradleystokejudo.com/uploads/1/3/1/4/131406714/jipulofo.pdfIn PDF document text
    • http://files.brookeorphanage.com/uploads/1/3/0/7/130775563/5883733.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/1/0433/8502/8758/files/89940691548.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/81108552740.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9780/8285/files/91420246400.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6177/2442/files/ledobojisaluzuda.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/6613/7507/files/doger.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/2171/4079/files/50306758933.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6237/0202/files/50270050564.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/6740/0601/files/kibubujuvi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/6797/4556/files/65133463060.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5264/6050/files/buku_paket_biologi_sma_kelas_11_kurikulum_2020.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/6177/1430/files/imagenes_para_colorear_mandalas.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/4532/8808/files/81038057822.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_off00006acd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6ACD 5272 bytes
SHA-256: f3872292d52177416a25479fe2638fd1058784c27adcbe892a41f3baff332c6f
font_01_sfnt_off00007ccc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7CCC 10496 bytes
SHA-256: 896fd8b0a82e537b90aaa8c9d81798c0b76af606bfd30efa44c49043da87f0a5

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