Malicious PDF — malware analysis report

Static analysis result for SHA-256 06e7e62acb88a9e5…

MALICIOUS

PDF

45.4 KB Created: 2020-08-30 09:12:40 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 676efbecb41e9e778e64964f535ba4de SHA-1: f1b879078d8dac3f38d1f6e2597e934696ee11d9 SHA-256: 06e7e62acb88a9e556a20ea832264bd9404b433df259481f200c36261a3b900b
154 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a link to a known malicious redirector, ttraff.com, disguised as a movie summary. This suggests a phishing or malware distribution attempt. The document also exhibits characteristics of a link farm, with numerous embedded links to Shopify domains, likely to obscure the malicious redirector. No scripts were extracted, but the presence of a malicious redirector is a strong indicator of malicious intent.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 4

  • 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.
  • 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/wix?keyword=pelicula+piratas+de+silicon+valley+resumen
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://www.daltonmaag.com/
    • https://cdn.shopify.com/s/files/1/0430/6377/1293/files/92070929222.pdf
    • https://cdn.shopify.com/s/files/1/0434/8729/7696/files/luvij.pdf
    • https://cdn.shopify.com/s/files/1/0433/4413/4294/files/das_apokryphon_des_johannes.pdf
    • https://cdn.shopify.com/s/files/1/0431/7803/3313/files/ratom.pdf
    • https://cdn.shopify.com/s/files/1/0431/1387/3569/files/nemixuzenakozopusef.pdf
    • https://cdn.shopify.com/s/files/1/0432/2213/9041/files/23702903768.pdf
    • https://cdn.shopify.com/s/files/1/0428/1230/9671/files/nuzukowaxirodegivati.pdf
    • https://cdn.shopify.com/s/files/1/0434/3398/4161/files/fejebir.pdf
    • https://cdn.shopify.com/s/files/1/0431/7023/4519/files/zugefunojujibomijug.pdf
    • https://cdn.shopify.com/s/files/1/0434/3929/2582/files/94532542208.pdf
    • https://cdn.shopify.com/s/files/1/0434/2474/3591/files/29035722627.pdf
    • https://static.usrfiles.com/ugd/9219f8_2453c8ecdecc48e29341ec16c1a1893f.pdf
    • https://static.usrfiles.com/ugd/0d002d_7c08afe88caf4888a881bfe61e55625a.pdf
    • https://static.usrfiles.com/ugd/b8c837_0378499d807e41d8b2a47aa2df882a6c.pdf
    • https://static.usrfiles.com/ugd/ca32a8_e47e852862da4cba87857da4a01c2c94.pdf
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://purl.org/dc/elements/1.1/
    • http://ns.adobe.com/pdf/1.3/
    • http://ns.adobe.com/xap/1.0/
    • http://ns.adobe.com/xap/1.0/mm/
    • http://ns.adobe.com/xap/1.0/rights/
    • http://scripts.sil.org/OFL

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006714.bin
a892c0d6fd6f4dd3339f786517b6531e7972725f5ba552ceb023ab8eed7cf1f0		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6714 5264 bytes
font_01_sfnt_off000078de.bin
b658704a044c025b41b5cf082510dffdb02e3ff4a6fbe3376f508d3726b17ea4		 pdf-font-stream PDF embedded font (sfnt) at offset 0x78DE 9772 bytes
font_02_sfnt_off00009a5b.bin
4fcfa7c68d76e23b667942a3ac892d2d5d88346478daafc61479ad4df4af3dd3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x9A5B 4324 bytes

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