Malicious PDF — malware analysis report

Static analysis result for SHA-256 58707e6b7f16209e…

MALICIOUS

PDF

47.4 KB Created: 2020-08-02 14:44:33 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 4883a06504d5a7c22517ca1af74ab75a SHA-1: f3de901bdf930ae44342854ad0e0d4b807ab4d85 SHA-256: 58707e6b7f16209e70398de2c82561e0bee27de73e73eb4d65e9ac3022bd1e96
120 Risk Score

Malware Insights

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

The PDF file contains a significant number of embedded links, with a critical heuristic firing indicating a link to a known malicious redirector infrastructure at 'https://ttraff.com/pify?keyword=ajax+call+php'. Another critical heuristic identified a large PDF link farm, with the first URL pointing to 'https://cdn.shopify.com/s/files/1/0428/9875/1641/files/jegizuwaropafutozu.pdf'. The document body contains garbled text but also includes the malicious redirector URL and several benign-looking Shopify URLs, suggesting a lure to external content.

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=ajax+call+php
    • http://files.designamanila.com/uploads/1/3/2/6/132681698/lezuledowe_zejojok_pizunojuvunuj_roxewodogi.pdf
    • http://files.eastsideserves.org/uploads/1/3/1/4/131483955/soxuwimixapus.pdf
    • http://files.permittechnation.org/uploads/1/3/0/8/130813448/dosore.pdf
    • http://files.swimbridgepreschool.com/uploads/1/3/2/7/132712000/tazafilur.pdf
    • http://files.organizedphotos.com/uploads/1/3/1/8/131871740/3286342.pdf
    • https://cdn.shopify.com/s/files/1/0428/9875/1641/files/jegizuwaropafutozu.pdf
    • https://cdn.shopify.com/s/files/1/0434/3198/5309/files/25711593610.pdf
    • https://cdn.shopify.com/s/files/1/0433/0723/7531/files/somitenugoxajamox.pdf
    • https://cdn.shopify.com/s/files/1/0429/0304/4263/files/67457331405.pdf
    • https://cdn.shopify.com/s/files/1/0429/4233/3087/files/zevarotipivelesirep.pdf
    • https://cdn.shopify.com/s/files/1/0437/6562/9077/files/pujonudegajokopaxejaga.pdf
    • https://cdn.shopify.com/s/files/1/0431/8468/5224/files/pomidedetutodijufisele.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/lezoxaxus.pdf
    • https://cdn.shopify.com/s/files/1/0436/1791/0944/files/zelevaxazukosexutopagamu.pdf
    • https://cdn.shopify.com/s/files/1/0433/0638/5558/files/81952769424.pdf
    • https://cdn.shopify.com/s/files/1/0429/0835/2679/files/62718134422.pdf
    • https://cdn.shopify.com/s/files/1/0432/0703/2990/files/gilorisunepar.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_off00007005.bin
667d9c4ae12693e800b608aa4ca3c5fb347bbfa4d5ae8b548c24807561fa5525
pdf-font-stream PDF embedded font (sfnt) at offset 0x7005 4208 bytes
font_01_sfnt_off00007e51.bin
a4ff23ec5b0cee7f7f7fe68c93388aa8718051ec2d37a1abcae82b315be2afd6
pdf-font-stream PDF embedded font (sfnt) at offset 0x7E51 10480 bytes
font_02_sfnt_off0000a221.bin
cd94ef65598b1866d0653cdd88243d989fd81359c0e770c2d3a4858f1c2f6d34
pdf-font-stream PDF embedded font (sfnt) at offset 0xA221 4324 bytes