Malicious PDF — malware analysis report

Static analysis result for SHA-256 be8423d0fe78a429…

MALICIOUS

PDF

39.4 KB Created: 2020-08-22 03:23:58 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: e12a0a647dc6757e3dd396c4116346bc SHA-1: 3ac6b37cd115818558415f3b158dc66f7ab51b85 SHA-256: be8423d0fe78a42977f50570f8dc3ad45bb963744e81df853d192051ce6ec18c
194 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link, pointing to 'ttraff.cc'. This link is presented within the document body, likely as a lure. The PDF also exhibits characteristics of a link farm, with numerous embedded URLs, many pointing to Shopify. The ML classifier strongly indicates maliciousness. The primary attack pattern involves redirecting the user to a malicious site via the embedded link.

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=bde+full+form+in+business In PDF document text
    • http://files.billshobbiesmodelshop.com/uploads/1/3/1/3/131384721/6645541.pdfIn PDF document text
    • http://pofadiva.jwhitneyart.com/uploads/1/3/0/7/130775565/2726583.pdfIn PDF document text
    • http://bowum.desertblossompreschool.com/uploads/1/3/0/9/130969754/sodukiwuzeminiwo.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/1/0435/8501/1873/files/french_english_dictionary_pc.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/9507/1651/files/nulofefuv.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/9327/6312/files/passover_haggadah_hebrew_english.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/3485/4051/files/wobemabekapobepub.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/gefoviliruvowej.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0464/2819/2920/files/29029497589.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0467/3697/files/70484106459.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/7450/9213/files/75806905679.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/2666/7925/files/tegifu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/4789/2630/files/surf_report_doheny_beach_california.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/0405/0084/files/52393146002.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_off00005db8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5DB8 5032 bytes
SHA-256: 42582ddb2ff9c37bd7048f47eb3ee2472ca995814bc41a2df853528e1cc70944
font_01_sfnt_off00006eb8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6EB8 10092 bytes
SHA-256: 04f4b3e97b770c7cd63b77d785875e3b33da1864f3343437d9a9f33341ac409c

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