Malicious PDF — malware analysis report

Static analysis result for SHA-256 abf9a733e97ae315…

MALICIOUS

PDF

44.1 KB Created: 2020-08-05 04:45:51 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 5e5c383c5bb06ada28a1651509e6f024 SHA-1: adb3751c589cf06ab04a1e74e2388d958e131e21 SHA-256: abf9a733e97ae315eec86d385a9509d58e6abd47f48bd87f164e1102407eaa4d
120 Risk Score

Malware Insights

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

The PDF file contains multiple embedded links, with one specifically identified as a malicious redirector. The document body, though heavily obfuscated, contains text related to 'Bourne supremacy book pdf' and a URL that appears to be a lure. The presence of numerous external PDF links, many hosted on Shopify, suggests a link farm designed to attract search engine traffic and potentially distribute malicious content. The primary malicious IOC is the redirector URL.

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.cc/pify?keyword=bourne+supremacy+book+pdf
    • http://bovejerez.goldstatus-of-arts.com/uploads/1/3/1/6/131637316/kojafedavixulinu.pdf
    • http://files.simonikigweba.com/uploads/1/3/1/3/131398177/wagekakapuzowi.pdf
    • http://jejizopil.702wi.com/uploads/1/3/1/3/131379803/nudemeku-diwokal-butil-romubipabo.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/1028728638.pdf
    • https://cdn.shopify.com/s/files/1/0437/3502/3770/files/19869259149.pdf
    • https://cdn.shopify.com/s/files/1/0439/2235/8427/files/93834893536.pdf
    • https://cdn.shopify.com/s/files/1/0434/4384/7328/files/95500468800.pdf
    • https://cdn.shopify.com/s/files/1/0432/8292/3676/files/68801577260.pdf
    • https://cdn.shopify.com/s/files/1/0438/6163/9318/files/gexonojitarivaje.pdf
    • https://cdn.shopify.com/s/files/1/0435/8458/5883/files/noxuzetulizu.pdf
    • https://cdn.shopify.com/s/files/1/0429/6605/7116/files/lasizewopomaz.pdf
    • https://cdn.shopify.com/s/files/1/0439/1036/5339/files/19905256070.pdf
    • https://cdn.shopify.com/s/files/1/0429/1415/2607/files/jojujakikunosikuxiki.pdf
    • https://cdn.shopify.com/s/files/1/0434/8297/2326/files/romomekezudenol.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_off00006c03.bin
ff568ca1f6b4effb81672c4632f5a1af8bbac379e8ec52f6767812931d07520d		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6C03 5624 bytes
font_01_sfnt_off00007f15.bin
944d9f881412ff2b7484f704a13e663b545fab6c39723cf8fb06b8f49d058e8d		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7F15 10704 bytes

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