Malicious PDF — malware analysis report

Static analysis result for SHA-256 683ee2d30bd65637…

MALICIOUS

PDF

45.3 KB Created: 2020-08-20 05:54:21 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 2255be2bf3a00d868e5fc04c06a9c05c SHA-1: 0165dc7c7df456eca9a19b0126e215c66577d821 SHA-256: 683ee2d30bd65637795e8b50a989ecf5ed779d1a42b9fb34c7a326b2641288f5
194 Risk Score

Malware Insights

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

The PDF contains numerous links, many pointing to a redirector service, indicating a link farm or phishing attempt. The primary malicious URL identified is https://ttraff.ru/pify?keyword=vdp+system+full+form, which is flagged as a malicious redirector. The document body, though heavily obfuscated, also contains this URL, suggesting it's the intended lure. The presence of many PDF links and a malicious redirector strongly suggests a phishing or scam campaign.

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=vdp+system+full+form In PDF document text
    • http://toruxu.sfxfaithformation.org/uploads/1/3/0/8/130813765/67e16ec74da.pdfIn PDF document text
    • http://files.mvbands.org/uploads/1/3/1/3/131378993/galebabipogagewefil.pdfIn PDF document text
    • http://files.franciscanyon.com/uploads/1/3/1/4/131408103/wutidemufewoses-wijirozifawa-pemos-gavofax.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/1/0437/0441/8455/files/bloodborne_dungeon_trophy_guide.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/7772/9432/files/wogapobigir.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6902/2109/files/61631592030.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3851/5098/files/79920120904.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/9998/7873/files/80051799698.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/5340/7646/files/81359266755.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6886/6208/files/2018_school_calendar_south_africa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/9330/2178/files/approaches_to_risk_management.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/1785/4366/files/bemef.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/7727/0692/files/resalunapemuxerezawoveb.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/6540/8662/files/74790317614.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 6

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_off000073a4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x73A4 5044 bytes
SHA-256: 5035344a7252e2b44f1997da8da0af96bf4523fece1b0c6ef88ec6e75a205370
font_01_sfnt_off000084cb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x84CB 10336 bytes
SHA-256: faece6bf98b6e17ca6731f82fb6e886880fe0029f388637529ee99a769eb29b0

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