Malicious PDF — malware analysis report

Static analysis result for SHA-256 9ae153ce569465a0…

MALICIOUS

PDF

48.3 KB Created: 2020-08-15 02:24:21 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 90c34bf867042955fd18b4605b43e062 SHA-1: 33c6eccc5110e7f45ea2f2e69fe13b5220673cd9 SHA-256: 9ae153ce569465a0ee721c413545e3977a782e2aa50e848902eddcf9dc237cac
120 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.001 Malicious Link T1059.001 PowerShell

The PDF file contains numerous links, a technique often used in SEO link farms to manipulate search engine rankings. One prominent link, 'https://ttraff.ru/pify?keyword=android+sqlite+database+example+source+code', is identified as a malicious redirector. This suggests the document's primary purpose is to redirect users to malicious infrastructure, likely for phishing or malware distribution, under the guise of providing code examples.

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=android+sqlite+database+example+source+code
    • http://files.ianvillarentals.com/uploads/1/3/1/8/131871729/busawano-vokobafazanape-xalebateveze.pdf
    • https://cdn.shopify.com/s/files/1/0431/6794/0765/files/86019991169.pdf
    • https://cdn.shopify.com/s/files/1/0446/8791/7209/files/html_to_download_jquery.pdf
    • https://cdn.shopify.com/s/files/1/0433/4321/6789/files/jibikakugumofe.pdf
    • https://cdn.shopify.com/s/files/1/0432/2597/2904/files/66283574610.pdf
    • https://cdn.shopify.com/s/files/1/0440/8921/3093/files/selagaxinipigerav.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/78683638278.pdf
    • https://cdn.shopify.com/s/files/1/0435/4218/4095/files/vusulanolegagivixarilebu.pdf
    • https://cdn.shopify.com/s/files/1/0435/4038/1855/files/50077896964.pdf
    • https://cdn.shopify.com/s/files/1/0431/2023/0564/files/5435412375.pdf
    • https://cdn.shopify.com/s/files/1/0439/4034/8059/files/73928798926.pdf
    • https://cdn.shopify.com/s/files/1/0435/8792/8223/files/pawozutexikabudekijola.pdf
    • https://cdn.shopify.com/s/files/1/0427/5827/5238/files/piwelesopuris.pdf
    • https://cdn.shopify.com/s/files/1/0435/6951/2607/files/wenuwudonevozufonejubi.pdf
    • https://cdn.shopify.com/s/files/1/0433/0268/2789/files/gatuj.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_off00007075.bin
7d884b273c706763168be2ed586c2117cf6cf5627096f15a79bf3401401a9e89		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7075 5540 bytes
font_01_sfnt_off00008329.bin
ceed0f3309a85984cf1f03e416b0be75ef6dcd64bbe09e3be4c8b9f50068a31e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8329 15788 bytes

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