Malicious PDF — malware analysis report

Static analysis result for SHA-256 2052ef96f9799167…

MALICIOUS

PDF

46.8 KB Created: 2020-08-20 20:59:25 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 4720b776d772e5fa41c7fd8f30efc23e SHA-1: 0b44b3d015b601dc6fdf5ef8caa1f0b1dcf74c71 SHA-256: 2052ef96f9799167d384a2b716f8e25a8272014b2e63dc8cf52f14a2febc705d
194 Risk Score

Malware Insights

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

The PDF contains a heuristic firing for a malicious redirector link, specifically `https://ttraff.cc/pify?keyword=bodybuilding+weekly+workout+plan+pdf`. This link is presented within the document body, disguised as a workout plan. The PDF also contains a mass external PDF link farm, with many links pointing to benign Shopify domains, likely for SEO manipulation. The primary malicious link redirects the user to potentially harmful content.

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.cc/pify?keyword=bodybuilding+weekly+workout+plan+pdf In PDF document text
    • http://files.goyurgroup.com/uploads/1/3/0/9/130969633/saxubosusebanubideli.pdfIn PDF document text
    • http://files.cocoonparentingsupport.com/uploads/1/3/1/4/131407802/4624087.pdfIn PDF document text
    • http://files.hprcolumbus.com/uploads/1/3/2/8/132814930/2581458.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/1/0435/4015/2479/files/bibtex_file_to.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/0357/6481/files/runizu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/3140/3413/files/kajaria_tiles_catalogue_2020_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9655/6191/files/60432748262.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/2531/6514/files/marketing_information_system_philip_kotler.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/5886/9910/files/mometusutexutazojalut.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0451/6714/9210/files/biochemistry_practical_manual_for_medical_students.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/4844/9686/files/roskam_airplane_design.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

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00007857.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7857 5476 bytes
SHA-256: adfebeec7e43dceddb82949bb933de03cfd10206eb545e88a2f90a0db5ddd0d1
font_01_sfnt_off00008b25.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8B25 10480 bytes
SHA-256: 5e6410d09b6fbdf61ce856da3842ef4107aacdd0f89d054ac4c1f92604899e5c