Malicious PDF — malware analysis report

Static analysis result for SHA-256 b057d2ba4aead904…

MALICIOUS

PDF

41.9 KB Created: 2020-08-14 15:15:40 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 07598b417401d33abf42f336fe831747 SHA-1: dd8d76e6e2f722e1101729876174c3d422d1fff4 SHA-256: b057d2ba4aead904215674015d513d7b3a4057cdaaffefee702507b5cddcb904
194 Risk Score

Malware Insights

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

The PDF contains a link farm designed to appear as search engine results, with a primary malicious redirector URL. The document body, though heavily obfuscated, contains the malicious URL and references game hacking tools, suggesting a lure to entice users to click the malicious link. The ML classifier strongly supports the malicious verdict.

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.cc/pify?keyword=choices+you+play+hack+mod++apk In PDF document text
    • http://files.houstoncleaningsquad.com/uploads/1/3/0/7/130775679/wenazaj.pdfIn PDF document text
    • http://files.artsoffmain.ca/uploads/1/3/1/4/131438439/ruvizoxazibopot-gepozawizeg.pdfIn PDF document text
    • http://files.myceliumart.crikarsmarshall.com/uploads/1/3/1/3/131383826/jogur-gedob-panudapig.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/1/0431/2875/0241/files/60957458242.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/4810/6134/files/47505724397.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/6356/5718/files/6399128017.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/3142/0314/files/rugefos.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7066/0508/files/93805838213.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0417/4233/files/jojugazumejizeponenekoxo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/4216/9244/files/10590837023.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5248/2208/files/42967018907.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/4175/8101/files/janapadalu_audio_songs_free.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/1648/6040/files/segewajot.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/6104/2591/files/32078318535.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/0772/0094/files/fivag.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 4

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_off000065fa.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x65FA 5288 bytes
SHA-256: 657199f5dc3b09a6f8210d79a6e97bd70b1bb4c3782513a8a3dc8d533e756236
font_01_sfnt_off000077d7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x77D7 10332 bytes
SHA-256: 6e7953c9a3f46ef4adf05f5d0a4354e056fbaebee071be0fa34ab3b966de4f81

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