Malicious PDF — malware analysis report

Static analysis result for SHA-256 bdb966954c178625…

MALICIOUS

PDF

40.2 KB Created: 2020-08-05 01:09:17 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 6a0b2fe9cf7873897bb1b460dca055e4 SHA-1: 7a168fd9c2c3df4163f85441ce51879c66883f48 SHA-256: bdb966954c1786257ef694641030849e93d4e73b9d1fb7416362fcaed67609d2
128 Risk Score

Malware Insights

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

The PDF contains multiple embedded links, with one specifically pointing to a known malicious redirector. The document body, though heavily obfuscated, contains text that suggests an urgency lure, reinforcing the malicious intent. The primary attack pattern involves tricking the user into clicking a link that leads to malicious infrastructure.

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.com/pify?keyword=bacteria+de+la+gonorrea+pdf
    • http://files.rvfreedommachine.com/uploads/1/3/1/1/131164431/taketipubeju.pdf
    • http://files.soeasyofficial.com/uploads/1/3/0/8/130874524/f1fa3.pdf
    • http://files.norfolkcatss.co.uk/uploads/1/3/0/7/130740231/peserunu.pdf
    • https://cdn.shopify.com/s/files/1/0439/0918/5688/files/memokazuvus.pdf
    • https://cdn.shopify.com/s/files/1/0432/8852/7013/files/casio_edifice_chronograph_manual.pdf
    • https://cdn.shopify.com/s/files/1/0430/8218/6905/files/44704226932.pdf
    • https://cdn.shopify.com/s/files/1/0433/4977/0395/files/9888661967.pdf
    • https://cdn.shopify.com/s/files/1/0434/6393/4109/files/vazetuxixawolokobaduzebe.pdf
    • https://cdn.shopify.com/s/files/1/0433/6130/4744/files/visa_print_file_upload.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/fawalonilon.pdf
    • https://cdn.shopify.com/s/files/1/0436/1139/0115/files/1217335499.pdf
    • https://cdn.shopify.com/s/files/1/0428/8049/9879/files/99998341356.pdf
    • https://cdn.shopify.com/s/files/1/0430/1442/2677/files/sezuzufezaromozujavo.pdf
    • https://cdn.shopify.com/s/files/1/0428/9848/9503/files/82632016967.pdf
    • https://cdn.shopify.com/s/files/1/0433/8502/8758/files/sudumeforukejopijeda.pdf
    • https://cdn.shopify.com/s/files/1/0433/5455/4533/files/21831750926.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_off00006076.bin
bad48fbe474018f4688bf77c7ea30de68fb8894e588d7c44b0c6e1a50d9ef498		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6076 5196 bytes
font_01_sfnt_off00007235.bin
66851736ba5376c50649c912c3f4788ff535ddb035593f468376c7a89e999f7f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7235 9900 bytes

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