Malicious PDF — malware analysis report

Static analysis result for SHA-256 ce374904a36e45ec…

MALICIOUS

PDF

43.9 KB Created: 2020-09-01 00:49:47 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 30230f283b31f32fa18ec66ea9e996f8 SHA-1: 92d826409576e3cbf9561fec141175b8f8ed57e5 SHA-256: ce374904a36e45ecc25844329e761a6c63266b6d8fcfe903eca54493cb0f500b
202 Risk Score

Malware Insights

MITRE ATT&CK
T1204.002 Malicious File T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF document contains multiple embedded links, with one pointing to a known malicious redirector. The document body and heuristics indicate a social engineering lure, instructing the user to disable security software and install a browser extension, likely to facilitate further malware delivery or credential theft. The presence of numerous shopify.com links suggests a link farm used for SEO poisoning to attract victims searching for solutions to common issues like "Windows update stuck at 95". No scripts were extracted from this sample.

Heuristics 5

  • 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.
  • Security software disable instruction high SE_SECURITY_BYPASS
    Document instructs the user to disable antivirus or security software — unusual for ordinary documents and high-risk in an unsolicited file
  • Browser extension / update installation lure high SE_BROWSER_INSTALL_LURE
    Document tells the user to install a browser extension, plugin, viewer, or browser update to view content — a common social-engineering path for credential theft and malware installation
  • 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/wix?keyword=windows+update++stuck+at+95
    • https://cdn.shopify.com/s/files/1/0462/8378/4352/files/wosipefuritofovunovu.pdf
    • https://cdn.shopify.com/s/files/1/0431/6548/3172/files/fomewatorimoputivif.pdf
    • https://cdn.shopify.com/s/files/1/0438/3355/7149/files/programa_de_auditoria_concepto.pdf
    • https://cdn.shopify.com/s/files/1/0435/3402/4855/files/jeniviwakuruxaboj.pdf
    • https://cdn.shopify.com/s/files/1/0432/8715/0752/files/raninuxoxivapafaj.pdf
    • https://cdn.shopify.com/s/files/1/0433/6127/1959/files/66654371426.pdf
    • https://cdn.shopify.com/s/files/1/0431/0673/0144/files/divelixufepaweridewexorof.pdf
    • https://static.usrfiles.com/ugd/10b11f_41212622827a46249957682081b46696.pdf
    • https://static.usrfiles.com/ugd/89363e_90732ed9a2e948a085523ebaad552df3.pdf
    • https://cdn.shopify.com/s/files/1/0432/2315/4847/files/47055572867.pdf
    • https://cdn.shopify.com/s/files/1/0430/3683/5993/files/avery_5168_template.pdf
    • https://cdn.shopify.com/s/files/1/0451/9510/0311/files/40323142297.pdf
    • https://cdn.shopify.com/s/files/1/0437/3640/0037/files/84501587634.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_off00005ff0.bin
5de82f2d7d9cc1acb71e12dda4f3c9c1a8756d27ce3775ab82a106c65be9128f
pdf-font-stream PDF embedded font (sfnt) at offset 0x5FF0 5272 bytes
font_01_sfnt_off0000720d.bin
f524d66182ec9ebc9f06e5f1377c5bd5cf0b510f8b8163f62cd8ade1ee20ca88
pdf-font-stream PDF embedded font (sfnt) at offset 0x720D 10244 bytes
font_02_sfnt_off00009504.bin
a542ec26cea93e049a2e27cd59b1347dd9bbdea13775fd7b822b3c2b3136116f
pdf-font-stream PDF embedded font (sfnt) at offset 0x9504 4324 bytes