Malicious PDF — malware analysis report

Static analysis result for SHA-256 f2d0a02d158a228f…

MALICIOUS

PDF

40.3 KB Created: 2020-08-11 18:49:23 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 7f20501fd93a241b50782c9c48139d67 SHA-1: c54fa59259edb80d54ce3c5cd0525d2b1ce4212e SHA-256: f2d0a02d158a228fc58c772649d9f037c7c9f9bf61375fcda8905301618b27b6
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF file contains numerous embedded links, a common tactic for SEO poisoning and redirecting users to malicious sites. One critical heuristic identified a link to a known malicious redirector infrastructure at 'https://ttraff.ru/wb?keyword=merge%20jpg%20to%20pdf%20software'. The document body, though heavily obfuscated, also contains this URL, reinforcing the malicious intent. The file's purpose appears to be directing users to potentially harmful content through a link farm.

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/wb?keyword=merge%20jpg%20to%20pdf%20software In PDF document text
    • http://files.thekingdomiswithin.com/uploads/1/3/2/6/132696104/pevapajekopexo_pobawokuk_robuzaravivizeg_dedowapo.pdfIn PDF document text
    • http://files.stonehouse-studio.com/uploads/1/3/2/7/132712315/5075796.pdfIn PDF document text
    • http://files.musicartssessions.com/uploads/1/3/1/4/131454560/gugoninopezetit_nuxas_zonifosegora.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/1/0436/0539/3571/files/how_to_initialize_a_hard_drive.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/5276/8151/files/26291825913.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0449/6615/0303/files/zafejuveweripofo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/1777/0904/files/67997298061.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/3279/7603/files/48830184252.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/6393/4105/files/75601278725.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/9180/3801/files/81515031512.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/5503/7093/files/berajaladur.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/7502/7619/files/definition_of_writing_by_different_authors.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3320/6682/files/27777677061.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9801/3845/files/zizuzigalaxawimuwurofok.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9420/3806/files/88216387202.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
🗂 Part of campaign: thekingdomiswithin.com 6 samples

Related samples 7

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_off00005ff6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5FF6 5348 bytes
SHA-256: 20207929998d30994d65acb604b392cf712fe24242c672ba97312b49aa954c0a
font_01_sfnt_off0000725b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x725B 10020 bytes
SHA-256: 93e755da9c2d6bc76fe8c5f794765985c3a7ef62fe847a2e08cf8a8defc3ab09

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