Malicious PDF — malware analysis report

Static analysis result for SHA-256 2145daee668456e8…

MALICIOUS

PDF

46.9 KB Created: 2020-08-12 13:34:55 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 2baca56647830ba29734fe253c4a1f4b SHA-1: 4ebf1b3a47c4822cd0fcc90f78932477b6df86cd SHA-256: 2145daee668456e835dc25b8796388f85c74c28fe66810385953c6de643ed8c1
162 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link, pointing to 'https://ttraff.com/pify?keyword=barefoot+investor+nz+pdf+download+free'. This, combined with the 'SE_PAYMENT_REDIRECT_LURE' heuristic, strongly suggests a phishing attempt designed to trick users into believing they are accessing financial information or making a payment, but instead directing them to a malicious site. The document body, though heavily obfuscated, contains the same redirect URL, reinforcing this conclusion.

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.
  • Payment redirection / bank-detail change lure high SE_PAYMENT_REDIRECT_LURE
    Document describes new or changed bank, wire, ACH, IBAN, SWIFT, or routing instructions — a high-value business-email-compromise 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.com/pify?keyword=barefoot+investor+nz+pdf+download+free
    • http://vakaxase.integraltrainingllc.com/uploads/1/3/1/4/131406893/zopeduzufubexidejet.pdf
    • http://files.dorothygoosby.com/uploads/1/3/0/7/130776407/fenod_nufepuruk.pdf
    • http://files.chasingafterlove.com/uploads/1/3/1/0/131070938/8410497.pdf
    • https://cdn.shopify.com/s/files/1/0432/3239/5426/files/canon_ip2700_manual.pdf
    • https://cdn.shopify.com/s/files/1/0432/6857/1294/files/miwix.pdf
    • https://cdn.shopify.com/s/files/1/0437/5012/9813/files/xenuduferoxugeje.pdf
    • https://cdn.shopify.com/s/files/1/0432/2328/5928/files/noxujegoxabi.pdf
    • https://cdn.shopify.com/s/files/1/0433/8276/7779/files/national_iodine_deficiency_disorders_control_programme.pdf
    • https://cdn.shopify.com/s/files/1/0432/7482/9987/files/48226213953.pdf
    • https://cdn.shopify.com/s/files/1/0438/9103/2216/files/novixofaposizute.pdf
    • https://cdn.shopify.com/s/files/1/0431/7016/8986/files/taxopupotukedipu.pdf
    • https://cdn.shopify.com/s/files/1/0435/0692/5720/files/skyrim_legendary_edition_guide.pdf
    • https://cdn.shopify.com/s/files/1/0429/6887/5157/files/90681077095.pdf
    • https://cdn.shopify.com/s/files/1/0431/9684/2142/files/zoganifefek.pdf
    • https://cdn.shopify.com/s/files/1/0433/0065/1158/files/gefidor.pdf
    • https://cdn.shopify.com/s/files/1/0434/6881/6544/files/error_code_0xc000000f.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006a57.bin
4adb277826b6d6d88509ec4cf676d15fe6aac67c6c5e582a33648be061a1824f
pdf-font-stream PDF embedded font (sfnt) at offset 0x6A57 5076 bytes
font_01_sfnt_off00007bbe.bin
e083c925f5cd42551ed9aa10d02f9f6368cd7bcc3d9c3d3677dbde8fef3aeae2
pdf-font-stream PDF embedded font (sfnt) at offset 0x7BBE 10796 bytes
font_02_sfnt_off0000a094.bin
ff5f0ef16caf3e97cd1984b3a03ea88e11eab8cf63d2ee006085a4b9995833f3
pdf-font-stream PDF embedded font (sfnt) at offset 0xA094 4324 bytes