Malicious PDF — malware analysis report

Static analysis result for SHA-256 cc577c0728fc275d…

MALICIOUS

PDF

48.6 KB Created: 2020-08-10 21:51:25 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: b8973680336688acabd5c66bc65f73a4 SHA-1: b0d41e5c58d6fd8199c1cb9a08c0d99ad17b8c0a SHA-256: cc577c0728fc275d6920d35caa4e7ee178d312dff9d52460225a0e434287fd53
234 Risk Score

Malware Insights

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

The PDF contains a link farm and a malicious redirector URL, indicating an attempt to direct users to potentially harmful content. The presence of a visible LOLBin command execution instruction suggests the document is designed to execute commands or scripts, likely to download and execute a second-stage payload. The primary malicious IOC is the redirector URL.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 6

  • 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.
  • LOLBin token sequence in document text high SE_LOLBIN_RUN_COMMAND
    Extracted document text contains a Windows script/execution tool name (PowerShell, mshta, cmd, rundll32, regsvr32, …) within 220 characters of a dangerous flag, command verb, or URL. This is a visible 'run this' instruction in HTML/PDF/RTF lure bodies, or — in macro-laden Office files — the macro's own string-pool entries appearing adjacent in extracted text.
  • 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.com/pify?keyword=camille+paglia+livro+pdf In PDF document text
    • http://files.rafikitravel.com/uploads/1/3/1/4/131409090/femomozawazovox.pdfIn PDF document text
    • http://files.unionvalleybaptist.net/uploads/1/3/2/6/132682528/pilidaruxofadopekupa.pdfIn PDF document text
    • http://zanunali.lofgrenmusicstudio.com/uploads/1/3/0/8/130814411/2d8fa4a41d17.pdfIn PDF document text
    • http://files.dojochattanooga.com/uploads/1/3/1/3/131383045/41939b27856bbe.pdfIn PDF document text
    • http://files.goleakdetectives.com/uploads/1/3/1/3/131398605/mafexuzebonir.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/1/0435/8144/0168/files/diwifadaridexorajibimudep.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/3161/6918/files/auxiliares_del_comercio_y_del_comerciante.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3425/5270/files/javubonarufubino.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/52733892229.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2930/7287/files/3475694130.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5530/0249/files/marvin_gaye_mp3_downloads.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/9622/0572/files/44204478997.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/3755/5864/files/sims_4_medium_curly_hair.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/5072/1699/files/lejesiv.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4256/1433/files/savop.pdfIn macro / runtime command snippet
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/26965864763.pdfIn macro / runtime command snippet
    • https://cdn.shopify.com/s/files/1/0430/6019/9573/files/fisokuwesevebusebotixije.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4356/1376/files/bozaw.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
    • https://cdn.shopify.com/s/files/1/0429/5072/1In macro / runtime command snippet
    • http://scripts.sil.org/OFLIn PDF document text

Related samples 7

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_off00007408.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7408 4868 bytes
SHA-256: 867ab49ba8e3e496f64d2e8003044095568c549ca0bbd961113bd06490e9f7d1
font_01_sfnt_off0000849d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x849D 10100 bytes
SHA-256: 6e8d4df2c817ede0919d496315b1598ade1acab5b5ff3abc1ffeae7f40b01ef3
font_02_sfnt_off0000a729.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA729 4324 bytes
SHA-256: 9f355172d696dda274cac500966718f112ce76951f19577ac4888987ea6471b2

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