Malicious PDF — malware analysis report

Static analysis result for SHA-256 bc9deb59ec42e683…

MALICIOUS

PDF

52.9 KB Created: 2020-08-29 22:12:55 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 191a565a40eb4f7188f17652f4ad4d3e SHA-1: 6b51ff2a53b56d1b7db94866cf80ef1ab4d66fa1 SHA-256: bc9deb59ec42e683fef5895cd558e078a8dfc01dd4c73509ab42b1213a9c2768
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF contains a critical heuristic firing for a malicious redirector link pointing to 'ttraff.com'. Additionally, it exhibits characteristics of a PDF link farm, with numerous embedded links to Shopify-hosted PDFs, suggesting an attempt to manipulate search engine results or distribute malicious content. The ML classifier also strongly indicated maliciousness. The primary attack vector appears to be social engineering via a deceptive link.

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.com/wix?keyword=organic+chemistry+carey+8th+edition In 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/1/0431/8658/5764/files/xolur.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/nowivozepax.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/9091/2159/files/velebananofer.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0451/8608/9109/files/android_game_modern_combat_3.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/86372263330.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9524/5475/files/mapavujulajonejajuxejutek.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6190/3517/files/85729976513.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/9513/7187/files/wosadu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6750/6845/files/kjv_bible_dictionary_and_concordance.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0463/7058/6779/files/best_free_calculator_app_for_android.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/b8c837_5c5d0e8ef8cc449fb11bb7d577dc25a8.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/b8c837_cc58c533a3854ec8a080083273e8b5db.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
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Related samples 5

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

Full JSON: related samples API

Extracted artifacts 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006c37.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6C37 5644 bytes
SHA-256: 9f44ca95beda99e08a2629c66717e61cda2e74189d7b477f2109ceee3e37edc1
font_01_sfnt_off00007f33.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7F33 1592 bytes
SHA-256: 236c006f8ac502fe18ab0d85e79ad2d5ec9825334f2d94bc7ca77080c2049286
font_02_sfnt_off00008752.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8752 10732 bytes
SHA-256: 07e279c2c0df683c1156f1f3f61d0e7d62e3187ac9954b1c8c4835e4c8289069
font_03_sfnt_off0000ac1b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xAC1B 17436 bytes
SHA-256: 683adbfdd17c9989673e1b74ed29acad364b7f771a4b9943d9668b60876446db

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