Malicious PDF — malware analysis report

Static analysis result for SHA-256 d5638dfb82a36021…

MALICIOUS

PDF

43.6 KB Created: 2020-08-19 07:28:40 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 3e2ec31c2389822bb64bbc3835a58caa SHA-1: 424901a9b01051d9cd3bdea0c08994a3ead811a0 SHA-256: d5638dfb82a36021010d944e24802cfac08d3dedcc731d8a1e134e196a2b58c9
234 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link pointing to 'ttraff.com'. Additionally, it exhibits characteristics of a PDF link farm, embedding numerous external links, some of which are hosted on Shopify. The presence of a 'LOLBin run command' heuristic suggests that the document may contain instructions or embedded commands intended to be executed, likely to facilitate the redirection or further payload delivery. The document body, though heavily obfuscated, contains the malicious URL and references to other PDF files, reinforcing the link farm and redirection attack pattern.

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=babies+comedy+videos+free In PDF document text
    • http://files.yorkstone.ca/uploads/1/3/2/7/132710632/fb6789a1f8.pdfIn PDF document text
    • http://files.sunnyhillpreschoolinc.com/uploads/1/3/1/4/131453251/2e4567d.pdfIn macro / runtime command snippet
    • http://zegadejot.nathannasbymusic.com/uploads/1/3/0/9/130969408/30359062b.pdfIn PDF document text
    • http://files.astartestudio.com/uploads/1/3/0/8/130814402/xatesiba.pdfIn PDF document text
    • http://giwumap.nationalparkswithkids.com/uploads/1/3/2/3/132302780/nomojamipab.pdfIn PDF document text
    • http://files.yorkstone.ca/uploads/1/3/2/7In macro / runtime command snippet
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/3269/9302/files/yearning_for_lightness.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/5661/7877/files/60584677892.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/8370/1151/files/curl_post_json.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/7623/0046/files/bukevemabotodagugitafiru.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/1900/9189/files/bangalore_bye_laws_2020.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/8072/1311/files/tefiwanosivunajurajeket.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/2717/6344/files/cg_movie_mayaru_ganga_free.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/2906/7933/files/lujilozomovemawumu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8845/3533/files/ballantine_books_submission_guidelines.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/5957/6986/files/information_security_interview_questions_and_answers.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8385/8080/files/mike_tyson_s_punch-_out_characters.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7868/0727/files/liza_dalby_geisha.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/5153/2963/files/dogezafefaverapubit.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_off00006bf0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6BF0 5488 bytes
SHA-256: 8292b6cee8ddd321a767c191932ff3abefde151e49aca92ecce2c5540943f15d
font_01_sfnt_off00007e85.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7E85 10308 bytes
SHA-256: 43094c625543c58fc0618ed0e3e6118a496b2abeed116b1f07cdb6429e38af6f

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