Malicious PDF — malware analysis report

Static analysis result for SHA-256 78103f553c6e647b…

MALICIOUS

PDF

46.6 KB Created: 2020-08-15 01:56:20 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: d5029a02aee7979b9ad491103ddbc45f SHA-1: 9b084571ac4b404defec310d5cf55d7c6a7d3ce1 SHA-256: 78103f553c6e647ba709208f3c57982137251d18c2c9df25bd96991d34a90659
194 Risk Score

Malware Insights

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

The PDF contains numerous embedded links, many of which point to redirector infrastructure designed to obscure the final malicious destination. The primary redirector URL is https://ttraff.ru/pify?keyword=carsguide+rav4+2019, which is flagged as malicious. The document body, though heavily obfuscated, also contains this URL, suggesting an attempt to lure users into clicking it for a deceptive purpose, likely phishing or malware distribution.

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=carsguide+rav4+2019 In PDF document text
    • http://rijafi.videoartcarmenkordas.com/uploads/1/3/1/6/131637339/zuzebovilalafir.pdfIn PDF document text
    • http://files.uscequestrian.org/uploads/1/3/0/7/130776573/firavuke.pdfIn PDF document text
    • http://files.bbluntsheabutter.shop/uploads/1/3/1/3/131383018/bajof.pdfIn PDF document text
    • http://xotalax.lllofmenh.org/uploads/1/3/0/9/130969873/726055.pdfIn PDF document text
    • http://files.newyorkhomescholars.com/uploads/1/3/0/8/130874361/jemanowara-majevujomi-jufagadawi.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/1/0431/0905/6668/files/les_accords_de_guitare_gratuit.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/8360/4903/files/lojiliwuvuram.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/1747/0101/files/how_to_open._ai_files.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0451/3749/4169/files/3437207447.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3501/6863/files/82205737679.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1616/7319/files/agency_theory_corporate_governance.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0443/9467/6390/files/david_alandete.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4298/7422/files/cambridge_preliminary_english_test_for_schools_1_with_answers.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/3001/0273/files/atharva_veda_in_tamil_free_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/0426/4601/files/shri_ganesh_atharvashirsha_in_english.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/7930/1275/files/segagakopijid.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0866/3456/files/xulowukoxokivuwekimoxiver.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9754/7157/files/40180406172.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006b50.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6B50 5200 bytes
SHA-256: 1860b408a5617b793ffa5be3aa2345673c7aee4ba937e61a32a48b3cde88321d
font_01_sfnt_off00007d1a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7D1A 10068 bytes
SHA-256: 7f9837bad7a692a6394ecb08b227fec36bd25a2547b2c3919a1828b65ef47c1e
font_02_sfnt_off00009f85.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9F85 4324 bytes
SHA-256: ff5f0ef16caf3e97cd1984b3a03ea88e11eab8cf63d2ee006085a4b9995833f3