Malicious PDF — malware analysis report

Static analysis result for SHA-256 f84431594c9f51cc…

MALICIOUS

PDF

43.7 KB Created: 2020-08-24 00:01:19 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: d6c8bc563fa477d6b2e0c6ba3139cbb7 SHA-1: 794c775929b5790f1d8fdf2e8b0ef450790832ec SHA-256: f84431594c9f51ccdbc8d6b1da0d19eff7533a0575ce6162355248bf877aab48
128 Risk Score

Malware Insights

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

The PDF file contains a link farm and a malicious redirector, indicating a phishing or scam attempt. The document body, though heavily obfuscated, contains the URL 'https://ttraff.cc/pify?keyword=gdpr+guidelines+summary', which is flagged as a malicious redirector. The presence of numerous PDF links, many hosted on Shopify, suggests a link farm designed to obscure the ultimate destination. The 'SE_URGENCY_LURE' heuristic further supports the phishing pretext.

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.
  • Urgency / deadline lure low SE_URGENCY_LURE
    Document contains urgency or deadline language ('account will be terminated', 'action required within 24 hours', etc.) — useful context, but low-signal without other findings
  • 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=gdpr+guidelines+summary
    • http://lizeved.spoletogreenfun.org/uploads/1/3/2/7/132740494/tomizilupes.pdf
    • http://files.dukeengagedetroit.org/uploads/1/3/1/8/131871501/faluwis.pdf
    • http://files.finelinesfishing.com/uploads/1/3/2/6/132696351/kixojagaforu.pdf
    • http://pofadiva.jwhitneyart.com/uploads/1/3/0/7/130775565/2726583.pdf
    • http://kenonijip.regimentvonitzenplitz.com/uploads/1/3/0/9/130969742/4129089.pdf
    • https://cdn.shopify.com/s/files/1/0430/2870/9539/files/antrenmanlarla_matematik_1_cretsiz.pdf
    • https://cdn.shopify.com/s/files/1/0430/2487/5674/files/mipusilisefubotomosu.pdf
    • https://cdn.shopify.com/s/files/1/0433/8037/5708/files/haemoglobin_estimation_by_sahli_s_method.pdf
    • https://cdn.shopify.com/s/files/1/0428/4016/2467/files/ansys_workbench_tutorial_guide.pdf
    • https://cdn.shopify.com/s/files/1/0432/4923/8178/files/14139766440.pdf
    • https://cdn.shopify.com/s/files/1/0430/5590/6970/files/tigepibafoberuxeg.pdf
    • https://cdn.shopify.com/s/files/1/0431/6902/2109/files/working_capital_balance_sheet_concept.pdf
    • https://cdn.shopify.com/s/files/1/0437/8053/8526/files/introduction_to_managerial_accounting_5th_edition.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/78108387577.pdf
    • https://cdn.shopify.com/s/files/1/0431/8229/3141/files/wobajusamofubojekefigila.pdf
    • https://cdn.shopify.com/s/files/1/0435/4303/6053/files/mojilima.pdf
    • https://cdn.shopify.com/s/files/1/0432/6372/1637/files/trauma_cerrado_de_abdomen_pediatria.pdf
    • https://cdn.shopify.com/s/files/1/0427/6604/1244/files/xuzuvararudifesokufavu.pdf
    • https://cdn.shopify.com/s/files/1/0431/5512/8477/files/vobolizamoberegunure.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_off00006ca5.bin
7847e2dece706fdfc8ccee25d2cc50981acf9bb1fa1abb8ad1200dd1afce6b36		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6CA5 5412 bytes
font_01_sfnt_off00007f04.bin
84e4a002235296af0cd75cd3d7a3c5e8822624ed7c5c77dc0f23f83b0ebd86cb		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7F04 10172 bytes

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