Malicious PDF — malware analysis report

Static analysis result for SHA-256 6959dc2757ae0c23…

MALICIOUS

PDF

44.0 KB Created: 2020-08-03 10:52:22 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: 98ef0b3850d944c3b7c8b5fc3512e9b9 SHA-1: 4f1bdedd77a044a3adbf1b63a1e67d6d4af1a4d0 SHA-256: 6959dc2757ae0c23b32939f3f0e8e2279d5ecb7fe3f882044c3af731ba2ec0de
194 Risk Score

Malware Insights

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

The PDF contains numerous embedded links, many pointing to a redirector service (ttraff.ru) which is flagged as malicious. This indicates an attempt to direct users to malicious infrastructure, likely for phishing or malware delivery. The presence of a link farm and SEO redirector suggests a campaign to attract unsuspecting users.

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=c+char+array+to+string In PDF document text
    • http://files.colonialridgegolf.com/uploads/1/3/1/4/131438419/7861758.pdfIn PDF document text
    • http://pagakeb.communitycolab.co.uk/uploads/1/3/0/7/130739625/tumeraz.pdfIn PDF document text
    • http://files.tabsproductions.co.uk/uploads/1/3/0/7/130775245/3183470.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/1/0438/3100/1238/files/bubopasifafipumom.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/9124/5733/files/85981325786.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/2934473971.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0151/1068/files/mixozerokenotomuroji.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6863/6834/files/vokizuxu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9277/0977/files/gaxinixefepasovenevavoder.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/7583/6840/files/66600317160.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/4410/8445/files/57903911322.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0084/7781/files/beguburukefomijivote.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7492/0347/files/paxuxokoxazo.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000057e8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x57E8 7520 bytes
SHA-256: 03cacfc6ffb1deb63ea0d09a2a3ac0a5119e879856d80d76c73cd38cbf3d62b2
font_01_sfnt_off000070cc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x70CC 5036 bytes
SHA-256: f78c76d99ab5910221a76e51f86513025c37b58af256949a2b7ddd411f37989b
font_02_sfnt_off000081f0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x81F0 9752 bytes
SHA-256: c833ccbeab843696fe8ef35697704947ccb58302e10804239dd8cbdf032819b3

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