Malicious PDF — malware analysis report

Static analysis result for SHA-256 87e32599aa17903a…

MALICIOUS

PDF

33.2 KB Created: 2020-08-15 03:00:02 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 547dae09a5242e03060bcafd482763e2 SHA-1: 4ed37500a750afb31461ebe61621ba71c2e7b79a SHA-256: 87e32599aa17903aa03d6c0934c8a72e85c38e804a7da8184a317dfc87336cec
120 Risk Score

Malware Insights

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

The PDF contains a link to a known malicious redirector, ttraff.ru, which is likely used to distribute further malicious content. Additionally, the document features a large number of embedded links to external PDF files hosted on cdn.shopify.com and other domains, indicating a potential SEO manipulation or link farm strategy. No scripts were extracted from this sample.

Heuristics 3

  • 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.
  • 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=anjaneya+movie+video+songs
    • http://files.diversityaccesspipeline.com/uploads/1/3/1/4/131437750/kipenaxololuzi.pdf
    • http://files.p3hairandbeautysupplies.com/uploads/1/3/1/1/131164016/zaxop.pdf
    • http://files.gertieandruth.com.au/uploads/1/3/1/4/131407226/218c29d6f149.pdf
    • http://files.eddiebyun.com/uploads/1/3/1/4/131437216/4879382.pdf
    • http://livutetis.lianginsects.com/uploads/1/3/1/1/131164250/garekajut.pdf
    • https://cdn.shopify.com/s/files/1/0436/5156/3670/files/bilirrubina_directa_elevada.pdf
    • https://cdn.shopify.com/s/files/1/0439/0843/2040/files/borderlands_3_amara_skill_guide.pdf
    • https://cdn.shopify.com/s/files/1/0430/2667/7913/files/36985106538.pdf
    • https://cdn.shopify.com/s/files/1/0429/1778/9862/files/grade_12_biology_textbook_ethiopia.pdf
    • https://cdn.shopify.com/s/files/1/0431/8153/9487/files/57080895387.pdf
    • https://cdn.shopify.com/s/files/1/0434/1396/2919/files/almeida_garrett_cames.pdf
    • https://cdn.shopify.com/s/files/1/0431/7760/7324/files/fupusovemenosenixaderex.pdf
    • https://cdn.shopify.com/s/files/1/0431/4077/6090/files/kimom.pdf
    • https://cdn.shopify.com/s/files/1/0434/1504/4245/files/ap_dialectical_journal_template.pdf
    • https://cdn.shopify.com/s/files/1/0434/5780/6486/files/38386799618.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/

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00004600.bin
b38d64634f969abbe634111281356b0c94d114772ef9d37269f0723a1d7cb367		 pdf-font-stream PDF embedded font (sfnt) at offset 0x4600 5244 bytes
font_01_sfnt_off000057dd.bin
a6e6c5712e9198b591b745662aa373b1c7e3523de373fcabfcf4175c3ddc8680		 pdf-font-stream PDF embedded font (sfnt) at offset 0x57DD 9464 bytes

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