Malicious PDF — malware analysis report

Static analysis result for SHA-256 ff7b1ddd391f1a13…

MALICIOUS

PDF

39.2 KB Created: 2020-08-17 15:03:43 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 7fe7aed4a3f397f4ebdee6135f9961dd SHA-1: c5c344af7ce6cf898142f0ccf2f7be7fa56b988d SHA-256: ff7b1ddd391f1a1366fc972ff6c52e0d73a4d4dde59dbcfcfd2f4046f93d3138
202 Risk Score

Malware Insights

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

The PDF file contains a link that redirects to a known malicious domain, identified by the PDF_MALICIOUS_REDIRECTOR_LINK heuristic. The document body, though heavily obfuscated, contains text suggesting a lure related to 'loan agreement template', and the PDF_SEO_LINK_FARM heuristic indicates a large number of embedded links, many pointing to Shopify domains, likely for SEO poisoning or to host further malicious content. The presence of a download button lure further supports a malicious intent.

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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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.ru/pify?keyword=loan+agreement+template+between+family+members+uk In PDF document text
    • http://files.teachcruachan.com/uploads/1/3/0/8/130874001/8224472.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/1/0428/5241/7692/files/bisefupefojarukagen.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/9444/9055/files/33159284753.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4637/9426/files/escape_room_game_level_106_answer.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/7058/6022/files/iron_deficiency_anemia_symptoms.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/2117/0850/files/65304446126.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0878/5562/files/matepe.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4635/4594/files/lakiwuwasiwad.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9732/5732/files/heap_income_guidelines_california.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/7763/1126/files/bhajan_songs_telugu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/1392/3228/files/74090476743.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 2

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_off00005aac.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5AAC 5560 bytes
SHA-256: 0e0ee86f3ba630c01ab1e7d68c2dbbce1f03a6e017b32b11b6b6264b09cad70f
font_01_sfnt_off00006da0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6DA0 10036 bytes
SHA-256: a6777cdd944bdb836bdceee3ecf6bf3abd96730bfef57c5ee49558552d363871

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