Malicious PDF — malware analysis report

Static analysis result for SHA-256 5f62aafef928d7b3…

MALICIOUS

PDF

50.0 KB Created: 2020-08-15 05:00:18 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: d33876532a90227b6ccecd36b082d2d1 SHA-1: 4ce8239113388638f8ffef6d0afb8a415076d6aa SHA-256: 5f62aafef928d7b3b0a770578363416cb8cca516c9cede808d632e444d420dff
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains a large number of links, many pointing to a redirector service, indicating a link farm or SEO abuse for malicious purposes. The primary redirector URL is `https://ttraff.ru/pify?keyword=certificate+border+design+template`, which is flagged as malicious. The document body, though heavily obfuscated, also contains this URL and other PDF links, suggesting a lure to download further content or visit malicious sites.

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.ru/pify?keyword=certificate+border+design+template In PDF document text
    • http://tatitowi.omenyiclassicstew.com/uploads/1/3/1/8/131856772/ranakasapepolus_ketebozitiru_kegeluxep_nugomofemu.pdfIn PDF document text
    • http://files.luckytakoyaki.com/uploads/1/3/1/0/131070207/tezivadibera_fugefekedige.pdfIn PDF document text
    • http://files.whwrestling.com/uploads/1/3/1/4/131438427/6142724.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1924/7514/files/19773862327.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7149/5574/files/4433422161.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/1374/1471/files/moriwunuvepaxifadex.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9325/3526/files/3736239298.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/5901/9933/files/24491328203.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3665/5259/files/galafunaluse.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/1413/4692/files/56797773770.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6200/9755/files/1995_jeep_cherokee_owners_manual.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7567/4024/files/race_car_aerodynamics_designing_for_speed_free_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7437/9157/files/11820708787.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9495/7475/files/edge_of_the_empire_character_sheet.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/1581/2766/files/proteinuria_classification.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 5

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000734a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x734A 5424 bytes
SHA-256: b5940c2bcd7694f10cf33278e9c1962f488bb51821cf17a5c2f73ea0c6425c0e
font_01_sfnt_off00008591.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8591 12620 bytes
SHA-256: 7c5d22e6c6cb27cd23e9b4e4f83a303f57659ad373b2f2020e59715baf3ea4e9
font_02_sfnt_off0000aced.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xACED 4324 bytes
SHA-256: ff5f0ef16caf3e97cd1984b3a03ea88e11eab8cf63d2ee006085a4b9995833f3

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