Malicious PDF — malware analysis report

Static analysis result for SHA-256 a8f76319fb4b29e1…

MALICIOUS

PDF

56.9 KB Created: 2020-08-22 16:02:58 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: 9d0e15c57cdc23396a5e90c1054cfd02 SHA-1: b4dcb1d8ed2f7aa357201eae13a99171ccd50fc0 SHA-256: a8f76319fb4b29e1b8ea0dfb55a2556c7c92793c0a516705237b5751bd0c0867
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 links to external PDFs, many hosted on 'cdn.shopify.com'. The document body, though heavily obfuscated, contains the URL 'https://ttraff.com/pify?keyword=background+photo+editor+software', suggesting a lure related to photo editing software. The primary intent appears to be redirecting 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.com/pify?keyword=background+photo+editor+software In PDF document text
    • http://fokemex.charltongolf.net/uploads/1/3/0/7/130739267/f79c17367e2d.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/1/0449/7919/1966/files/abbyy_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/loxidunadubufurepetiverox.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/0921/0529/files/xigeridabizunawalezowuwe.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/5970/8058/files/70278428549.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/9881/6150/files/56167205824.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/3761/4499/files/84986093896.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/0765/4563/files/speak_now_1.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/2853/6726/files/b._a_pass_2_movie_in_300mb.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/7278/1478/files/contrastive_analysis_james.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0886/0065/files/business_process_improvement_toolbox_second_edition.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3192/8740/files/16922651642.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 2

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_off00007a39.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7A39 5472 bytes
SHA-256: 29618366df5a480934b86d2b1e801739b7f4e79cd6ba0cca6fa9eace334f6d20
font_01_sfnt_off00008cdc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8CDC 10340 bytes
SHA-256: baa14baaf05d4f7a4f1394c5ac31f521e035f37ad67e84921a7e0190898894e9
font_02_sfnt_off0000b05b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB05B 16836 bytes
SHA-256: 523da372c8bca1c3f2b5984769f8a524808494e970e2ed454b82532fbdefea53
font_03_sfnt_off0000c822.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC822 4324 bytes
SHA-256: ce7e2e230a41ba6fc2d7d2240890c8289d67876d84a3d076d67c0b48111c8230

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