Malicious PDF — malware analysis report

Static analysis result for SHA-256 a0c0212efa593fc8…

MALICIOUS

PDF

39.4 KB Created: 2020-08-21 19:50:03 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 2a0e2c52ae2a44e9b25ddd446abad92c SHA-1: 0d592812c492bbf2afcedf7e7df0b3f00b61c04c SHA-256: a0c0212efa593fc8b2088f26ae4eb699941428e47fdaed3048d10dbeabb7b4b9
162 Risk Score

Malware Insights

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

The PDF file contains a significant number of embedded links, many pointing to Shopify-hosted PDF files, indicating a link farm. One critical heuristic identified a link to a known malicious redirector, 'ttraff.com', which likely serves as a distribution point for further malicious activity. The ML classifier also strongly flagged this PDF as malicious. The presence of a link farm and a malicious redirector suggests an attempt to either manipulate SEO or distribute malware through a chain of redirects.

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.
  • SEO-redirector lure link (multi-word utm_term) low PDF_SEO_UTM_REDIRECTOR_LINK
    PDF contains a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the search-keyword gateway used by the 'free document download' phishing family. Surfaced as an IOC; on its own this is a low-confidence signal.
  • 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=badrinath+songs++masstamilan In PDF document text
    • http://files.nicolaulrichs.com/uploads/1/3/0/7/130739059/dolelunegojiguz-namowiminan-donugawor.pdfIn PDF document text
    • http://jafuweki.sunrise-pta.org/uploads/1/3/2/8/132814930/tasit-nosagukivozudol.pdfIn PDF document text
    • http://bedani.ecommplish.com/uploads/1/3/2/3/132302978/kupamisofefap.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/1/0435/5493/0839/files/59968248907.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/1679/8886/files/html2pdf_arial_font.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/5785/4102/files/bootstrap_datepicker_get_selected_date_in_format.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/0579/6774/files/lebedeguporamesadozovefuv.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7279/0428/files/77539768039.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/sebifoxof.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/2790/7239/files/gefilemenet.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/2685/6610/files/92453171900.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/2277/7496/files/6130959503.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7839/3749/files/dezukuzudefufivav.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_off00005c2d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5C2D 5288 bytes
SHA-256: 3c8c52e0a7664d6316eb74b61eda6a6177a230f62cf4ffe1416a4e48fc1f7faf
font_01_sfnt_off00006df4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6DF4 10148 bytes
SHA-256: 0e88e5b9e155576ae2d033322ab69bdda5d9762f43ecbdf831659e6b9c4fdae3

Open this report in the interactive analyzer, or submit your own file for analysis.