Malicious PDF — malware analysis report

Static analysis result for SHA-256 2071f79947d8bf13…

MALICIOUS

PDF

43.6 KB Created: 2020-07-31 03:26:22 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: ac76863cf7490789b7279dd22e96ced7 SHA-1: f863808f88ecde92823f14324d6b72fb517337a4 SHA-256: 2071f79947d8bf134a6bd378176ebca461e85816b061fc79487be43392a02566
234 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link pointing to 'ttraff.cc'. Additionally, it exhibits characteristics of a PDF SEO link farm, with numerous links to Shopify-hosted PDFs, suggesting an attempt to manipulate search results or distribute content. The 'SE_PASSWORD_ARCHIVE_LURE' heuristic indicates the document may be part of a multi-stage attack, possibly requiring a password to decrypt a subsequent payload. The document body is heavily obfuscated and unreadable, providing no direct clues to its intent beyond the metadata and heuristics.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 6

  • 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.
  • Password-protected archive handoff high SE_PASSWORD_ARCHIVE_LURE
    Document gives password instructions for an archive or attachment — often used to keep payloads encrypted until after gateway scanning
  • 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=brand+identity+book+pdf In PDF document text
    • http://files.adpecuador.com/uploads/1/3/0/9/130969356/a29c929.pdfIn PDF document text
    • http://files.skycombers.com/uploads/1/3/1/4/131410479/8813834.pdfIn PDF document text
    • http://files.jcardinahl.com/uploads/1/3/1/6/131637131/kapuremibokid_korakenavodof_nedadumuw_zamire.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/1/0432/8544/6824/files/misoxi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/6333/6350/files/149931830.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/3123/2674/files/14258800942.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/8004/6997/files/wigizowujewebo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/1028/3931/files/36830321974.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/3018/4098/files/mebudemomoturobewas.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/0817/8845/files/75272689821.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/2484/8795/files/72345010585.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/4070/9527/files/41711091055.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5555/4455/files/kudoxod.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/1982/8386/files/tepejebusuwefifa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/1668/2663/files/83762873752.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 1

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_off00006e43.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6E43 4968 bytes
SHA-256: 0cde13d1898861f7ecc25ce0d0aad1e18465207bd089616917e4c4c9b455855f
font_01_sfnt_off00007f39.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7F39 9996 bytes
SHA-256: 734ed1143ce763c368b805491ea2687c3bfd58cb407f608a6d0d8b550aaa64a8

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