Malicious PDF — malware analysis report

Static analysis result for SHA-256 388c19a7b6534b2e…

MALICIOUS

PDF

41.9 KB Created: 2020-08-25 23:52:59 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 2ff43d6a1f63bc8fbe6f7309f1630a4b SHA-1: 214753fb7bd5076c34d85ecb6732ec5727c10df1 SHA-256: 388c19a7b6534b2e22c0d447174fce49d4f3c6bb9ae5d290588abe01c10c0827
234 Risk Score

Malware Insights

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

The PDF contains a link farm designed to direct users to a malicious redirector. The heuristic PDF_MALICIOUS_REDIRECTOR_LINK specifically flags the URL https://ttraff.com/pify?keyword=dian+hanson+books+pdf as malicious. The presence of multiple Shopify links, while many are benign, suggests an attempt to obscure the malicious destination. The heuristic SE_LOLBIN_RUN_COMMAND indicates that the document contains instructions for executing commands, likely to facilitate the redirection or download of further payloads.

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.
  • LOLBin token sequence in document text high SE_LOLBIN_RUN_COMMAND
    Extracted document text contains a Windows script/execution tool name (PowerShell, mshta, cmd, rundll32, regsvr32, …) within 220 characters of a dangerous flag, command verb, or URL. This is a visible 'run this' instruction in HTML/PDF/RTF lure bodies, or — in macro-laden Office files — the macro's own string-pool entries appearing adjacent in extracted text.
  • 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.com/pify?keyword=dian+hanson+books+pdf In PDF document text
    • http://files.anthonymichaelscatering.com/uploads/1/3/2/6/132695472/f8f39.pdfIn PDF document text
    • http://files.curlyhorsevermont.com/uploads/1/3/1/1/131164198/lenuwuxuwanaded.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/1/0430/0200/3615/files/metal_gear_solid_gamecube.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/xasojikunu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/9163/9974/files/fundamentals_of_cost_accounting.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/5905/2706/files/bad_company_2_apk_data.pdfIn macro / runtime command snippet
    • https://cdn.shopify.com/s/files/1/0434/1750/1853/files/new_catholic_encyclopedia_vol_10.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/54686169254.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/7753/2822/files/tewuwasuloturerume.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/5915/1009/files/51018057780.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/4463/3750/files/64291377373.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_off000064f6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x64F6 5204 bytes
SHA-256: e2c11e31bb28c3f000e792e82ea794ab272741d53757f41a113dee2ba5a0536a
font_01_sfnt_off000076a0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x76A0 10832 bytes
SHA-256: eb417413ac0c6660301785f81f805e06c535f6ac0a16520b9fafba674d3d38dd

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