Malicious PDF — malware analysis report

Static analysis result for SHA-256 4f07fbd2ae5e0551…

MALICIOUS

PDF

40.7 KB Created: 2020-09-09 20:53:29 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: ff048c5ba09f1802a8b5689f9432ece1 SHA-1: bf2efd175cd9c04918ec1db8c739a5859e05fe60 SHA-256: 4f07fbd2ae5e0551593e7590c25148255cbce930d1786a8c133e7d8f6b59ba9b
120 Risk Score

Malware Insights

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

The PDF file contains a mass of external links, masquerading as a "Powerpoint presentation format" to entice users. One of the primary links directs to a known malicious redirector infrastructure, suggesting an attempt to lead the user to a malicious site or download. No scripts were extracted, limiting the analysis to the document's structure and embedded links.

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.link/pify?keyword=powerpoint+presentation+format
    • http://files.artchaucer.com/uploads/1/3/2/7/132710601/bezox-papep-bosexesokuxuwus-kijetese.pdf
    • http://files.wxrringtxn.com/uploads/1/3/0/8/130813054/xevewumimoz.pdf
    • http://zokanisu.tingsrydsbrukshundklubb.com/uploads/1/3/0/8/130814017/6508082.pdf
    • http://bizoz.steveellisworld.com/uploads/1/3/0/8/130814328/4639580.pdf
    • http://files.thedougmargroup.com/uploads/1/3/0/7/130739704/850bbf4e8beb008.pdf
    • https://cdn.shopify.com/s/files/1/0431/1531/5351/files/historia_de_la_biotecnologia_vegetal.pdf
    • https://cdn.shopify.com/s/files/1/0428/3983/4791/files/rolidopovujapogufejizomar.pdf
    • https://cdn.shopify.com/s/files/1/0431/6092/8405/files/80745832597.pdf
    • https://cdn.shopify.com/s/files/1/0431/4886/9789/files/karepabokexipibalunaf.pdf
    • https://cdn.shopify.com/s/files/1/0428/9229/6359/files/dasuzizariwigok.pdf
    • https://cdn.shopify.com/s/files/1/0437/6097/6021/files/zeph_daniel_spreaker.pdf
    • https://static.usrfiles.com/ugd/81d6a4_ed33242d9f544349bc11cc7b67c63f6e.pdf
    • https://static.usrfiles.com/ugd/868f76_2b0eec10ae574db58582232327889303.pdf
    • https://static.usrfiles.com/ugd/185c00_7d970622e7bb48ef872c2054b1c09ac5.pdf
    • https://static.usrfiles.com/ugd/b8c837_de70664321e94bd5ae1b2183916fa764.pdf
    • https://static.usrfiles.com/ugd/3615fb_09f6301547534e138de552e7603fcdad.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_off000062ad.bin
8a1b3baab309781ff98f4ad01bc2f72b1362ff96e5e6957389885c3939dca9f9		 pdf-font-stream PDF embedded font (sfnt) at offset 0x62AD 5108 bytes
font_01_sfnt_off00007409.bin
084d64f1403be81cd04927fa7d4f8c175a5fc8a44c89ad0dee909863c1f81fc0		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7409 9820 bytes

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