Malicious PDF — malware analysis report

Static analysis result for SHA-256 e072474885e4cb69…

MALICIOUS

PDF

42.9 KB Created: 2020-08-22 01:50:12 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 7942081e24b0e6832e91c84b1efb982a SHA-1: d1d95a16f332ba91b7f2ae484dbc57a255d006fd SHA-256: e072474885e4cb69457bd1e94db5a27b7c72c422698e50b03e13432ca57947a2
160 Risk Score

Malware Insights

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

The PDF contains a heuristic firing for a malicious redirector link and a link farm, indicating a social engineering attempt. The document body text and embedded URLs suggest a lure to install a browser extension or update, which is a common tactic for credential theft or malware delivery. The primary malicious URL identified is https://ttraff.ru/pify?keyword=mlb+weather+report+rotogrinders, which redirects to other PDF documents.

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.
  • Browser extension / update installation lure high SE_BROWSER_INSTALL_LURE
    Document tells the user to install a browser extension, plugin, viewer, or browser update to view content — a common social-engineering path for credential theft and malware installation
  • 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=mlb+weather+report+rotogrinders
    • http://figimuxep.sunsetskinboutique.com/uploads/1/3/1/4/131454215/nazile.pdf
    • http://files.annagranuzzosilverman.com/uploads/1/3/1/4/131453858/d47a4dd.pdf
    • http://gilipabul.mindhealthconnection.org/uploads/1/3/0/9/130969465/geforulewu.pdf
    • http://xisizax.randolphbush3.com/uploads/1/3/0/7/130738890/4657329.pdf
    • https://cdn.shopify.com/s/files/1/0431/1593/7948/files/61992888476.pdf
    • https://cdn.shopify.com/s/files/1/0431/0669/7367/files/xifujami.pdf
    • https://cdn.shopify.com/s/files/1/0437/5642/1278/files/38349414176.pdf
    • https://cdn.shopify.com/s/files/1/0440/1269/9798/files/bill_of_sale_trailer.pdf
    • https://cdn.shopify.com/s/files/1/0434/2523/5111/files/zivalolitojil.pdf
    • https://cdn.shopify.com/s/files/1/0429/6415/6575/files/b_m_sharma.pdf
    • https://cdn.shopify.com/s/files/1/0432/5382/5694/files/lobegivuzorojogifijifor.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_off00006871.bin
1979563daa4b9737dca181a768579f7ac073bdaa5b0a81075e9c3b521ad823ea		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6871 5460 bytes
font_01_sfnt_off00007b07.bin
02247ec2e8e183ac1f8eb1f50ee3f853dd569f1c707b6693579ff1f380b3b297		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7B07 10596 bytes

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