Malicious PDF — malware analysis report

Static analysis result for SHA-256 d01b30e88484a70a…

MALICIOUS

PDF

44.2 KB Created: 2020-08-20 22:18:56 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: a8bfbd3520728bc6e08cbcc194061e1b SHA-1: 52a98beba21a34ae4e7cb5ae2316e4c4853c7015 SHA-256: d01b30e88484a70afa0b5af9d4fa0d8a668178d548438bab718435596f7ca015
150 Risk Score

Malware Insights

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

The PDF contains a link farm and a redirector link to 'ttraff.ru' disguised as a 'blue whale spa manual'. This indicates a likely phishing or scam attempt to direct users to malicious infrastructure. The ML classifier strongly supports the malicious nature of this PDF. No scripts were extracted, limiting the analysis of specific execution behaviors.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

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=blue+whale+spa+manual
    • http://tikeboni.jhrartistry.com/uploads/1/3/0/9/130969352/motolejukikek_pewirejop_nolekirosin_jezidubere.pdf
    • http://files.triadsbesthvac.com/uploads/1/3/2/6/132696512/8450511.pdf
    • http://files.coffsharbourmassage.com/uploads/1/3/1/1/131164231/mivevovadugofan.pdf
    • https://cdn.shopify.com/s/files/1/0462/7903/2992/files/vomubotinuvok.pdf
    • https://cdn.shopify.com/s/files/1/0430/4447/0945/files/35267230192.pdf
    • https://cdn.shopify.com/s/files/1/0428/1332/5471/files/43026045174.pdf
    • https://cdn.shopify.com/s/files/1/0438/0593/3730/files/piwomodilujukaxalawisemiz.pdf
    • https://cdn.shopify.com/s/files/1/0449/4766/9160/files/stp_reporting_closely_held.pdf
    • https://cdn.shopify.com/s/files/1/0449/5107/7032/files/not_interested_in_anything.pdf
    • https://cdn.shopify.com/s/files/1/0435/2350/6336/files/adaptability_definition.pdf
    • https://cdn.shopify.com/s/files/1/0433/3862/9270/files/44429965762.pdf
    • https://cdn.shopify.com/s/files/1/0435/5116/2517/files/3dmark_2010_free.pdf
    • https://cdn.shopify.com/s/files/1/0427/4506/9724/files/todo_sobre_la_defensa_siciliana.pdf
    • https://cdn.shopify.com/s/files/1/0440/3894/6981/files/www._pearsonitcertification_register.pdf
    • https://cdn.shopify.com/s/files/1/0430/8451/3440/files/deremamelajexixokinu.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_off00006e82.bin
f0560ed541a64b066a41e96f25da3b58a3d0c5010df7060fd0d4831124934d43		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6E82 5104 bytes
font_01_sfnt_off00007fd3.bin
3447dd3815e1d339b6961cfaba869902dbf84c89574c3cbd89ddcd8559d32be7		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7FD3 10668 bytes

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