Malicious PDF — malware analysis report

Static analysis result for SHA-256 e1c73b7e70be493e…

MALICIOUS

PDF

44.4 KB Created: 2020-10-31 20:43:24 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-26
MD5: 36bfe739decd7ddb412e681a9ae0c2a7 SHA-1: 9fbc08d7f52e1e4b6bc35342ca47b8692b57013e SHA-256: e1c73b7e70be493eebb4012b450733a5f2187ccbb561e676edcf64f82a767dbf
154 Risk Score

Malware Insights

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

The PDF document contains a lure related to 'Fifa 14 full apk and obb' and embeds multiple links. One of these links, https://cctraff.ru/strik?keyword=fifa+14+full+apk+and+obb, is identified as a known malicious redirector. The document's structure and embedded links suggest it is designed to lead users to malicious websites, likely for further payload delivery or phishing. No scripts were extracted, but the presence of embedded URLs and the ML classifier's high confidence indicate 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://cctraff.ru/strik?keyword=fifa+14+full+apk+and+obb In PDF document text
    • https://cdn-cms.f-static.net/uploads/4375080/normal_5f9475be6a0d1.pdfIn PDF document text
    • https://pimetagedipimop.weebly.com/uploads/1/3/1/6/131636886/57dc2c19170a.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4385634/normal_5f9c42d3cacf0.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4412890/normal_5f95df9498026.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4371010/normal_5f95ba0010e10.pdfIn PDF document text
    • https://fejamelaluboj.weebly.com/uploads/1/3/4/3/134311679/nimetodi.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4413969/normal_5f96914d5f8ab.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4382406/normal_5f8c8fd583d37.pdfIn PDF document text
    • https://letalisukom.weebly.com/uploads/1/3/4/3/134316231/33482d12a7102.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4369665/normal_5f882707b3f39.pdfIn PDF document text
    • https://gemiwanot.weebly.com/uploads/1/3/4/4/134495393/fijebesamexok.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4389582/normal_5f9c945cf0aac.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4386091/normal_5f8cad02349e6.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4378379/normal_5f9c7936b3a1c.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/1/0478/2702/6079/files/2020_slang_for_drunk.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0502/5103/8873/files/heatherwood_golf_course_birmingham.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000617e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x617E 4744 bytes
SHA-256: 4bb9d685c72248497abf2333079e46441599a25132b9e635caa586d6d4e916fb
font_01_sfnt_off000071aa.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x71AA 10928 bytes
SHA-256: 0e0f21083d15e5315e361dcdac8071b47629e579932e5ef1dc0e1147f26d8d7b
font_02_sfnt_off000096ec.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x96EC 4324 bytes
SHA-256: d1f4a20f0e35a0564be54678b929bb8c711862c507f070c2b9a6abea8daf4378

Open this report in the interactive analyzer, or submit your own file for analysis.