Malicious PDF — malware analysis report

Static analysis result for SHA-256 f3b9c06345f534fc…

MALICIOUS

PDF

39.5 KB Created: 2020-08-02 11:42:32 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 59657ef0c9574038c1e7fd9cdd6fb813 SHA-1: a5902d2b56283cb573783e61d443c816c3dfc7d0 SHA-256: f3b9c06345f534fc6e0d95ae018877840994d12b3c7ac60226e582151105b301
194 Risk Score

Malware Insights

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

The PDF file contains a critical heuristic firing for a malicious redirector link, pointing to 'ttraff.cc'. The document body, though heavily obfuscated, contains text related to 'Brother hl- 2270dw drivers' and the malicious URL. This suggests a social engineering lure to trick users into downloading potentially malicious files disguised as drivers. The presence of numerous other PDF links, many hosted on Shopify, indicates a link farm strategy, with the primary malicious link being the most concerning.

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=brother+hl-+2270dw+drivers In PDF document text
    • http://files.riponcitybonfire.org/uploads/1/3/1/3/131380354/karuwif_puxubovu.pdfIn PDF document text
    • http://files.downtowndogs.ca/uploads/1/3/1/0/131070842/puvet.pdfIn PDF document text
    • http://files.shelleygentry.com/uploads/1/3/0/7/130776131/79f938f.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/1/0432/8777/3342/files/vuposabisisexilanapuxitam.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/6743/1329/files/monster_hunter_lagombi_armor.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9581/0455/files/25289594281.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/1423/3000/files/sozinuv.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/6633/6167/files/webepetarofatikanagip.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/zurutadodusabexefiba.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/8319/2727/files/fowoxewosemewimipu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/6055/1070/files/nerexuwib.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/46946939033.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/6000/1954/files/15969271539.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8153/9483/files/zotaputasixaro.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_off00005bac.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5BAC 5288 bytes
SHA-256: 7123fa1b9a944b127a77997c03bc53695ad147f5be7cc0a212fc87a8aab88e19
font_01_sfnt_off00006dc9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6DC9 10576 bytes
SHA-256: 641254611bf6c39dfb654c1aaf24b6c17788e6b62055c18affc00e700ea8c264

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