Malicious PDF — malware analysis report

Static analysis result for SHA-256 dd1d274386996418…

MALICIOUS

PDF

50.0 KB Created: 2020-08-27 17:41:56 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 9119e7cab9bcdbcfb0ac44ab0b7e7a9e SHA-1: ac41e6aa6f672c24ade7d9a9b1082a0fd1e09363 SHA-256: dd1d274386996418ff73db603598c494accfc57c2b191365deb130faa9aa4b8f
194 Risk Score

Malware Insights

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

The PDF contains multiple embedded links, with one specifically identified as a malicious redirector pointing to 'https://ttraff.ru/pify?keyword=memoirs+of+my+nervous+illness+pdf'. This indicates a likely phishing or malware delivery attempt. The document body, though heavily obfuscated, also contains this URL, reinforcing the malicious intent. The presence of numerous external PDF links suggests a link farm or SEO poisoning tactic to increase visibility.

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=memoirs+of+my+nervous+illness+pdf In PDF document text
    • http://files.devodiva.com/uploads/1/3/1/4/131406831/7385181.pdfIn PDF document text
    • http://figudino.plasticfreegreece.com/uploads/1/3/0/7/130776021/mezug.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/1/0433/0507/4838/files/47086689737.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6809/6661/files/wulogepejovexox.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/2021/4681/files/gazemadewo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/8376/5662/files/56601474531.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/6000/1945/files/27134349103.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9004/3285/files/59626840539.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/5042/6780/files/3130956272.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9961/1555/files/96419586984.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8126/9401/files/alienist_book.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/6769/5511/files/after_effects_tutorial_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/9392/3742/files/mainframe_assembler_tutorial.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8006/4936/files/download_free_ringtones_for_staying.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00007a45.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7A45 4944 bytes
SHA-256: 95279464064d4cf3fda1c00612cf8e24210492eb4cdc8f17a85b2c4534f6fe2a
font_01_sfnt_off00008b05.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8B05 9908 bytes
SHA-256: 6115efac8e8eff6c246faa8036ea0c4a753396eaeed2908ad57cea2dd6cf3066
font_02_sfnt_off0000acfa.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xACFA 4324 bytes
SHA-256: ce7e2e230a41ba6fc2d7d2240890c8289d67876d84a3d076d67c0b48111c8230

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