Malicious PDF — malware analysis report

Static analysis result for SHA-256 594454f2c33f9a60…

MALICIOUS

PDF

41.5 KB Created: 2020-11-01 06:41:45 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-12
MD5: c1e9cc727415ae91a79fed740acebc58 SHA-1: 04612b8204a64e8cb14d07d92e929c45d36593e0 SHA-256: 594454f2c33f9a60cb0a1909f81c1d8959b30f54c34c935e2d87c63534b674d4
154 Risk Score

Malware Insights

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

This PDF file contains numerous embedded links, with the primary one directing to a known malicious redirector. The document body, though heavily obfuscated, contains references to financial terms and the malicious URL, suggesting a phishing or scam attempt. The presence of multiple external links points towards a link farm or SEO poisoning tactic to distribute malicious content.

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://ggtraff.ru/aws?keyword=the+federal+reserve+cartel+pdf In PDF document text
    • https://cdn-cms.f-static.net/uploads/4409609/normal_5f9b37056bda6.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4393889/normal_5f9a8373185cc.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://uploads.strikinglycdn.com/files/da5ce7ac-961c-4b55-893c-c2fe292fddc9/49590748937.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0498/7859/7790/files/braun_740s_manual.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/666941bd-1d33-41ca-a31c-3ad18ae3a6f3/tibizam.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/4061/3286/files/34907335904.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/5a4e6c64-c4ff-41fb-aa02-295946d4f76c/vatosifugufejewa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0467/5695/4275/files/19090179856.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/83379745-e0b3-4071-97a7-e26af64adf17/54876677505.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/65e9b4f8-b7ee-45a3-8880-6e518b3e245b/lubapigivoduzemavav.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/ab209af8-85ee-4b5a-9f34-040d9b081c54/murakubusaz.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/34e66b5e-f146-485c-af7f-e59acc820dc8/75834077425.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/fcf5c00a-3a51-4d21-8561-6e5758273f78/kegaf.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/2c43f0c2-497a-44a9-b6b7-ceb76ddd3421/27411052587.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

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000063cf.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x63CF 5252 bytes
SHA-256: 9838dbf97360142005d24bf64b1a15556e4846cededfec48ae576cd0cd7c25f1
font_01_sfnt_off000075ab.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x75AB 10444 bytes
SHA-256: 9a27b4ed94ee1c102160718045a15b10ae809aa4c317335b49ed75e1bc52cd0c

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