Malicious PDF — malware analysis report

Static analysis result for SHA-256 0a3446d3daf7b550…

MALICIOUS

PDF

44.1 KB Created: 2020-08-23 00:38:21 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 596706ff197608c1995ced58814cdf35 SHA-1: 2d90dd314c4485cd838ff2677c7d7cc020e70a30 SHA-256: 0a3446d3daf7b5501c66ae7cfc0d702a082c7e0c81ba665d18cd2e0dba2da60c
194 Risk Score

Malware Insights

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

The PDF contains numerous links, many pointing to redirector infrastructure like 'ttraff.ru', which is flagged as malicious. The document body, though heavily obfuscated, contains a URL that appears to be a lure for a game download. The presence of multiple external PDF links suggests a link farm or SEO poisoning tactic to distribute malicious content. The ML classifier also strongly indicated maliciousness.

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=badland+2+game++for+android In PDF document text
    • http://gugolad.nataliemariaclark.com/uploads/1/3/1/4/131437243/zemom.pdfIn PDF document text
    • http://molosez.maxweltontherapygroup.ca/uploads/1/3/1/4/131453850/gebakifadunupasax.pdfIn PDF document text
    • http://files.connallyband.com/uploads/1/3/1/8/131856381/koguwoxixude.pdfIn PDF document text
    • http://files.key2evolve.com/uploads/1/3/0/8/130874318/zasabuxemer_xawapikiguromik_balasoge.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/1/0428/7243/8947/files/80780673535.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/2729/1544/files/garuramasokevu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/8762/4344/files/55680332528.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/1312/8863/files/likelevebisivun.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/4288/8097/files/madamozedor.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/89352644259.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6371/3695/files/82606018681.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/91960476686.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0461/3373/9673/files/91845260284.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/3633/4501/files/77247103286.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0373/9294/files/wuvoxemufemotapetuwoni.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4546/9858/files/91547566248.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 8

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_off0000604b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x604B 4936 bytes
SHA-256: 65e28d30711497ad3dca7bc24a019186656ad69ef80ad8828834f3174e16c55d
font_01_sfnt_off000070f2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x70F2 10704 bytes
SHA-256: 00f0af1b6fc6cf8a7a8fd217957bacaedf1e487ab5ad686087afe573f229c925
font_02_sfnt_off00009595.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9595 4324 bytes
SHA-256: 4fcfa7c68d76e23b667942a3ac892d2d5d88346478daafc61479ad4df4af3dd3

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