Malicious PDF — malware analysis report

Static analysis result for SHA-256 b0421f0942a6ee5a…

MALICIOUS

PDF

39.7 KB Created: 2020-08-08 19:00:44 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 8845aa83ff93e0a55ec7a8b87902777d SHA-1: 011f6164ba1cd947635b046083090271a94aefe5 SHA-256: b0421f0942a6ee5abd4b595fc73bcd7071439a2edfb2cc6e2a54c22a498f3a0a
120 Risk Score

Malware Insights

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

The PDF contains a large number of external links, many pointing to Shopify domains, but one critical link directs to a known malicious redirector at ttraff.com. The document body, though heavily obfuscated, contains the same lure text and the malicious URL, suggesting the primary purpose is to redirect the user to potentially harmful content. No scripts were extracted from this sample.

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=bach+chaconne+guitar+tab+pdf
    • http://files.tacomawinemerchants.com/uploads/1/3/1/3/131379578/zipusowo.pdf
    • http://files.3hwarchitecture.com/uploads/1/3/1/6/131606123/goxes.pdf
    • http://files.geras.sk/uploads/1/3/2/6/132680901/sipamiratifo_negebuse.pdf
    • http://files.gfuzzy.com/uploads/1/3/1/3/131379801/mubetusefemo_puroxasoriw_wuzatode_nipoki.pdf
    • https://cdn.shopify.com/s/files/1/0432/0365/7887/files/mcpe_master_ios.pdf
    • https://cdn.shopify.com/s/files/1/0429/7061/1861/files/alvaro_gomez_hurtado.pdf
    • https://cdn.shopify.com/s/files/1/0434/5744/6038/files/mutuwejadimivip.pdf
    • https://cdn.shopify.com/s/files/1/0432/1270/1860/files/43953790981.pdf
    • https://cdn.shopify.com/s/files/1/0436/1384/7714/files/46440707160.pdf
    • https://cdn.shopify.com/s/files/1/0431/6394/3067/files/download_catalogo_hinode_ciclo_2_2020.pdf
    • https://cdn.shopify.com/s/files/1/0428/4802/6780/files/levezireve.pdf
    • https://cdn.shopify.com/s/files/1/0437/0553/2569/files/24264290357.pdf
    • https://cdn.shopify.com/s/files/1/0450/6284/8664/files/adobe_lightroom_keygen.pdf
    • https://cdn.shopify.com/s/files/1/0429/0406/0071/files/mri_placenta_accreta.pdf
    • https://cdn.shopify.com/s/files/1/0435/2815/9396/files/sevedoramozawuvemunedanu.pdf
    • https://cdn.shopify.com/s/files/1/0428/4248/8998/files/42772856542.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_off000050b0.bin
5e9b48426f0fef5ca97fcf5572d497c5476bbcd091102d02f185d71e18ad0845
pdf-font-stream PDF embedded font (sfnt) at offset 0x50B0 5280 bytes
font_01_sfnt_off0000628c.bin
967d95e5837f9c985ed80c1961c4a17ece25fc369c3f23d8dcac1cc5bc7d6057
pdf-font-stream PDF embedded font (sfnt) at offset 0x628C 9728 bytes
font_02_sfnt_off000083e8.bin
05d2457133b820fa77aa358e30e9acfbad3f04c46ced9a37296d9311117db176
pdf-font-stream PDF embedded font (sfnt) at offset 0x83E8 4324 bytes