Malicious PDF — malware analysis report

Static analysis result for SHA-256 d49a71ac2c0941d7…

MALICIOUS

PDF

64.4 KB Created: 2020-08-03 05:19:04 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 70a298b83f21ad8ff8f631e7e4046bdc SHA-1: ee4b731cd14dcd65f19e5aeb8aea72c6101644cb SHA-256: d49a71ac2c0941d7df9de22e4084a2b0601271b033427e968f359ef446f4aa23
194 Risk Score

Malware Insights

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

The PDF was flagged for containing a large number of external links, with one heuristic specifically identifying a link to a known malicious redirector. The document body, though heavily obfuscated, contains the URL 'https://ttraff.cc/pify?keyword=probability+pitman+solution', which is also flagged as malicious. This suggests the primary purpose is to redirect users to malicious infrastructure.

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=probability+pitman+solution In PDF document text
    • http://files.kathrynjeffords.com/uploads/1/3/0/7/130739154/ruzunijapewinagofaje.pdfIn PDF document text
    • http://files.abwamdcap.org/uploads/1/3/0/7/130738722/e387f3f2.pdfIn PDF document text
    • http://files.alohabaibala.com/uploads/1/3/0/8/130874541/nawogin-towotetino.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/1/0430/8752/8103/files/smtpe_time_code.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/3672/8726/files/58065665107.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0443/0397/4556/files/electronics_second_edition_hambley.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6942/3269/files/negekudowamup.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/5381/6728/files/kiwijajetulivenibinunika.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/3672/8744/files/80782569005.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0538/6657/files/24264753990.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/1619/9066/files/vuxuzululodawis.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0760/5923/files/93695051863.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/8475/9711/files/74173796746.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/78394199391.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 3

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_off0000b822.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB822 5208 bytes
SHA-256: da0c97d98699803007e666a81ac40544ebada5ca48064933e71451ae716eb104
font_01_sfnt_off0000c9c2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC9C2 13628 bytes
SHA-256: 16893d9c4d0236081ba7c928941d12470e3e15bcac87c22a2f9e37f05cca8885

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