Malicious PDF — malware analysis report

Static analysis result for SHA-256 4e614838c93d7c53…

MALICIOUS

PDF

52.5 KB Created: 2020-08-24 15:27:15 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 4c346a1f6c25e1a0495c488041aa7ae1 SHA-1: 9294fbe6c98f927ea0e3e3bf8bacda3c205727dd SHA-256: 4e614838c93d7c537dc038f01fdc618836095c1e36ead49b75cc6dfadc963055
120 Risk Score

Malware Insights

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

The PDF contains a mass of external links, many pointing to Shopify domains, but one critical link redirects to known malicious infrastructure at 'ttraff.cc'. This indicates a link farm or redirection tactic to obscure the final malicious destination. The document body itself is heavily obfuscated and contains embedded URLs, further supporting the 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.cc/pify?keyword=surah+al+kahfi+rumi+pdf
    • http://velaluz.deeperintolife.com/uploads/1/3/0/8/130814328/e00d3.pdf
    • http://files.teddies-afrique.com/uploads/1/3/0/7/130775398/lotofimaw.pdf
    • http://widinusi.apsacgots.org/uploads/1/3/0/7/130775291/fisopiwasakesogu.pdf
    • http://sogodizin.psychoneirology.org/uploads/1/3/0/8/130814515/8d80cb8c317d8.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/kemulubu.pdf
    • https://cdn.shopify.com/s/files/1/0436/2724/9826/files/nexijewuditikilafe.pdf
    • https://cdn.shopify.com/s/files/1/0430/6993/1671/files/kexojugunano.pdf
    • https://cdn.shopify.com/s/files/1/0439/0453/2648/files/57479152349.pdf
    • https://cdn.shopify.com/s/files/1/0435/5896/1315/files/1415529948.pdf
    • https://cdn.shopify.com/s/files/1/0436/7728/6553/files/wepakujezelu.pdf
    • https://cdn.shopify.com/s/files/1/0435/4159/4266/files/nogerajumaxotirol.pdf
    • https://cdn.shopify.com/s/files/1/0433/8201/4119/files/virofifa.pdf
    • https://cdn.shopify.com/s/files/1/0432/2518/6466/files/39341210220.pdf
    • https://cdn.shopify.com/s/files/1/0448/2056/2077/files/fairy_tales_for_preschoolers.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_off000072c7.bin
c275c0afec577f5beac5a927919d63e3c1dec2f788a7ba75cede41d6dd94efab		 pdf-font-stream PDF embedded font (sfnt) at offset 0x72C7 5268 bytes
font_01_sfnt_off0000848d.bin
26502028a52aaae8dd323d99c895e5a8fb3e071430363e45a6db7f64320d6f1a		 pdf-font-stream PDF embedded font (sfnt) at offset 0x848D 13772 bytes
font_02_sfnt_off0000aff3.bin
43e84046d57c5d8edad47de9228ce36feb53c5e515436c294a71041590f3a3a6		 pdf-font-stream PDF embedded font (sfnt) at offset 0xAFF3 16132 bytes

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