Malicious PDF — malware analysis report

Static analysis result for SHA-256 9b4ae29ae5acee2c…

MALICIOUS

PDF

41.3 KB Created: 2020-08-24 05:41:44 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 3d924091df1526b3bf5913217a3dcf09 SHA-1: b617f2347036a60b5902397156c3e80dd7aa00d0 SHA-256: 9b4ae29ae5acee2cbccbb9b07476720171b0813a181796441afa45719c30272d
120 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded links, with one pointing to a known malicious redirector. The heuristic firings indicate this is a link farm designed to distribute malicious content. The document body itself is largely unreadable binary data, but the presence of the URL 'https://ttraff.com/pify?keyword=tamponade+jvp+waveform' within the document stream strongly suggests a malicious redirection attempt.

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.com/pify?keyword=tamponade+jvp+waveform
    • http://files.eccpoplar.com/uploads/1/3/0/9/130968984/sotifuvi-fufuw.pdf
    • http://wetuwado.imexsar.com/uploads/1/3/2/8/132814718/5f87ac34ebf93.pdf
    • http://files.baystategalvanizing.com/uploads/1/3/0/9/130969663/1108831.pdf
    • https://cdn.shopify.com/s/files/1/0434/2274/4741/files/6546603301.pdf
    • https://cdn.shopify.com/s/files/1/0429/2686/6599/files/75113401772.pdf
    • https://cdn.shopify.com/s/files/1/0428/5107/4214/files/fopijodelatubel.pdf
    • https://cdn.shopify.com/s/files/1/0436/1627/2546/files/spelling_bee_contest_rules.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/waxigulazatep.pdf
    • https://cdn.shopify.com/s/files/1/0438/2117/0850/files/vekelojikejo.pdf
    • https://cdn.shopify.com/s/files/1/0434/7474/7545/files/78487778815.pdf
    • https://cdn.shopify.com/s/files/1/0434/4106/2040/files/59400564187.pdf
    • https://cdn.shopify.com/s/files/1/0435/6187/7665/files/class_9_science_chapter_3_atoms_and_molecules_notes.pdf
    • https://cdn.shopify.com/s/files/1/0439/5932/0734/files/56806493343.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_off000064e7.bin
49d9f5816f7c14f6a5c88f79d68e1381a4b34508b5af6b783cd9c945b4b1e652		 pdf-font-stream PDF embedded font (sfnt) at offset 0x64E7 5152 bytes
font_01_sfnt_off00007675.bin
890980408f0d87d290424285337e40e25106ff1a70a4870477443857a5efa3d5		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7675 10096 bytes

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