Malicious PDF — malware analysis report

Static analysis result for SHA-256 d54f25a1ddc6223f…

MALICIOUS

PDF

49.3 KB Created: 2020-08-01 13:13:52 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 2e4b5e326f210d1c8cfef1e40b08563a SHA-1: 28b595b94bf5df5b5cece628b6f60df429c0c81f SHA-256: d54f25a1ddc6223f8d083a8700a22354a8a6b3b3316a540b56694e72622ffcc3
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell T1204.002 Malicious Link

The PDF contains numerous embedded links, with a critical heuristic firing indicating it links to known malicious redirector infrastructure. The document body, though heavily obfuscated, contains a URL that appears to be the primary lure. The ML classifier strongly indicates maliciousness, and the presence of a link farm suggests an attempt to distribute malicious content broadly.

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=vanilla+wow+cooking+guide In PDF document text
    • http://files.wouterbergenhuizen.com/uploads/1/3/0/8/130814769/meguwiwabojusesuzed.pdfIn PDF document text
    • http://files.brandonrdavis.com/uploads/1/3/1/3/131380440/mowegofo.pdfIn PDF document text
    • http://files.alabama-lera.com/uploads/1/3/1/1/131163684/48ff76b99167.pdfIn PDF document text
    • http://files.avic2020.org/uploads/1/3/0/8/130874513/lonalemo_gategexuzam_zubijux_sumomifa.pdfIn PDF document text
    • http://files.acjrhighgirlscamp.com/uploads/1/3/0/7/130740521/1c5f5.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/1/0434/0360/8216/files/17575499999.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0279/7986/files/rudadapunipaje.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/1204107997.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/2644/0607/files/82599791532.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/2750/4024/files/solonikijigofagigu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/6653/0728/files/24596489661.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/4166/7734/files/safexarawamixixefunok.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/1908/2651/files/jobirixefikovovilolisi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/3423/8362/files/zurefaguvikizagupuw.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/6145/1681/files/46455755171.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/1979/5623/files/zodixuvamexos.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/3651/7286/files/wefewikibujagowolazir.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: alabama-lera.com 3 samples

Related samples 8

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_off00008463.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8463 4952 bytes
SHA-256: 05b89dcb0e95566e4855fcc8adfec56f1a32524324b664e2719ba714c47c1689
font_01_sfnt_off00009567.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9567 10164 bytes
SHA-256: 1f7186a5cef30cf3df2c99f3e54321b45c51782c22feb1608141be96f3723b17

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