Malicious PDF — malware analysis report

Static analysis result for SHA-256 bb94c605ba727d28…

MALICIOUS

PDF

60.6 KB Created: 2020-08-04 10:42:30 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 4e970d8027fd9ec4460c3486fe66328a SHA-1: 421f6bea2192cf5fd8f3633f3c603f2588f94609 SHA-256: bb94c605ba727d286935cf999c69f971212c361f7913997ca66fec9bf3f43744
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'. This indicates the document's primary purpose is to redirect users to malicious infrastructure. The document body, though heavily obfuscated, contains the same URL, reinforcing this finding. The presence of numerous other links, many hosted on 'cdn.shopify.com', suggests a link farm or SEO poisoning tactic to improve search engine visibility for the malicious 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.com/pify?keyword=types+of+electronic+ignition+system+pdf In PDF document text
    • http://files.vincetease.com/uploads/1/3/1/3/131381614/daselezotora.pdfIn PDF document text
    • http://files.evanstacythrelfall.com/uploads/1/3/2/8/132814050/sexiwuv.pdfIn PDF document text
    • http://files.stjohnsgolfcourse.com/uploads/1/3/1/4/131484328/tifudasedaw_xepafodi_xelotoxolagax.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/1/0428/9835/8432/files/72593533024.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/1471/7597/files/gawab.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/1594/6911/files/76603399873.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/1588/9305/files/jigarineporunawabi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6574/5309/files/nifojewobuwozerol.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/0213/4681/files/zoxozuliji.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5307/2022/files/parasitic_capacitance_in_mosfet.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/pepefawabibuf.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7826/2692/files/powoxolam.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/3422/9406/files/revolenet.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/2299/9964/files/pebakiwutimeperapumazewun.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_off0000b003.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB003 5316 bytes
SHA-256: fa899e0c0491bd585ab57b3e90e7a6ff45ff4b7abb99279650f064f5798a6f25
font_01_sfnt_off0000c214.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC214 10284 bytes
SHA-256: 7dedf5b4cbcfc5d94808d162977cbc50a4110111fcc134046fa2dc82bda494ea

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