Malicious PDF — malware analysis report

Static analysis result for SHA-256 7f41b12047845e1d…

MALICIOUS

PDF

34.8 KB Created: 2020-08-14 14:14:29 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 6fd8e08e90f7d4de97bea1800ecb69c0 SHA-1: 8e76efe252a733508592aa1df919c1eaeb521dbb SHA-256: 7f41b12047845e1d89e8522d5ac5dde7c384c3ea51d7a2bed9dd70456f3af4c0
120 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded links, many of which point to PDF files hosted on Shopify. One of these links, however, redirects to a known malicious domain (ttraff.cc). This suggests a link farm or redirection attack designed to lure users to malicious content. The document body contains garbled text and the target URL, indicating a potential phishing or malware distribution 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.cc/pify?keyword=consider+the+lilies+vocal+solo+sheet+music
    • http://files.eliotchurch.org/uploads/1/3/1/4/131483002/wuwavevokidivizuvuvo.pdf
    • http://files.wonkymonkey.nl/uploads/1/3/0/7/130776589/5922855.pdf
    • http://files.taranakisummerschool.com/uploads/1/3/0/8/130874207/kamijagemepivo_kaximabe_zakiredepav.pdf
    • http://files.amymengphotography.com/uploads/1/3/0/8/130815137/wenevodorigomitug.pdf
    • https://cdn.shopify.com/s/files/1/0433/5733/9800/files/62431280708.pdf
    • https://cdn.shopify.com/s/files/1/0430/7599/3764/files/tubosukaguvijesajipifur.pdf
    • https://cdn.shopify.com/s/files/1/0430/5063/1319/files/87360258810.pdf
    • https://cdn.shopify.com/s/files/1/0434/3329/6028/files/can_kindle_read_books.pdf
    • https://cdn.shopify.com/s/files/1/0431/3802/3581/files/61001661169.pdf
    • https://cdn.shopify.com/s/files/1/0433/0638/5573/files/kukobagaziti.pdf
    • https://cdn.shopify.com/s/files/1/0436/4815/5806/files/compendio_catecismo_catolico.pdf
    • https://cdn.shopify.com/s/files/1/0436/6503/1321/files/everything_i_have_never_told_you.pdf
    • https://cdn.shopify.com/s/files/1/0431/9582/6336/files/mathematical_analysis_2_canuto_tobacco.pdf
    • https://cdn.shopify.com/s/files/1/0434/4460/0999/files/gefipepidedaduwatuzekelu.pdf
    • https://cdn.shopify.com/s/files/1/0439/1026/7035/files/58889046100.pdf
    • https://cdn.shopify.com/s/files/1/0438/3942/2626/files/censer_trial.pdf
    • https://cdn.shopify.com/s/files/1/0429/4384/0412/files/18343838655.pdf
    • https://cdn.shopify.com/s/files/1/0433/9276/2006/files/armadale_train_line.pdf
    • https://cdn.shopify.com/s/files/1/0436/0408/2851/files/52543995801.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_off00004be2.bin
fb72637f079b8e477d190b0abfbb6d8aa4e11113ca0e903ea5639b15cc521d87
pdf-font-stream PDF embedded font (sfnt) at offset 0x4BE2 5144 bytes
font_01_sfnt_off00005d2f.bin
295694c0b4e73fd89461b61755341342d380fac1a398f937daa9416c99447471
pdf-font-stream PDF embedded font (sfnt) at offset 0x5D2F 9580 bytes