Malicious PDF — malware analysis report

Static analysis result for SHA-256 282054022e3c9d74…

MALICIOUS

PDF

51.8 KB Created: 2020-07-30 23:02:43 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 54bfd4861a5034f88ccd4a664aaf2688 SHA-1: 15bb7b2337469809e2495473c3a1872fd0088e59 SHA-256: 282054022e3c9d74feb84144e8336f4a488feb96b1d6ce701961aaa69c77b06b
120 Risk Score

Malware Insights

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

The PDF file contains numerous embedded links, a technique often used to redirect users to malicious websites. One critical heuristic identified a link to a known malicious redirector, ttraff.com, which is part of a link farm designed to obscure the final destination. The document body, though heavily obfuscated, suggests a lure related to a 'scholarship acceptance letter'. No scripts were extracted, limiting the analysis of direct execution capabilities.

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=scholarship+acceptance+letter+sample+pdf
    • http://files.labamboovixen.com/uploads/1/3/1/4/131406153/5f130e7043c111.pdf
    • http://files.clarevet.com/uploads/1/3/0/7/130738814/6baf8b64a8319.pdf
    • http://files.yellowpointfarms.com/uploads/1/3/1/4/131483027/fffa0eb2cdafd5c.pdf
    • https://cdn.shopify.com/s/files/1/0428/3318/2886/files/kefemo.pdf
    • https://cdn.shopify.com/s/files/1/0430/9378/6791/files/59880702755.pdf
    • https://cdn.shopify.com/s/files/1/0430/2848/0157/files/tifojosokumetuvumuruni.pdf
    • https://cdn.shopify.com/s/files/1/0430/3051/1779/files/44529868084.pdf
    • https://cdn.shopify.com/s/files/1/0436/6244/2661/files/nomadapafivutilaxovubibuv.pdf
    • https://cdn.shopify.com/s/files/1/0434/6196/8025/files/komonizogamuverefolutir.pdf
    • https://cdn.shopify.com/s/files/1/0433/5307/9963/files/88563835022.pdf
    • https://cdn.shopify.com/s/files/1/0437/0992/3480/files/48057874508.pdf
    • https://cdn.shopify.com/s/files/1/0432/1126/0062/files/48444450056.pdf
    • https://cdn.shopify.com/s/files/1/0427/9966/1223/files/mawunusebozorokudegumu.pdf
    • https://cdn.shopify.com/s/files/1/0430/3880/2073/files/65510374059.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/damegadunuje.pdf
    • https://cdn.shopify.com/s/files/1/0437/1687/0298/files/gezejakupone.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/
    • https://cdn.shopify.com/s/files/1/0436/6

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000765c.bin
4cf15c580b110ee81ceef8f913cf52a4fd13654abfef4d1ad80fd71e1bc0b2ad
pdf-font-stream PDF embedded font (sfnt) at offset 0x765C 5288 bytes
font_01_sfnt_off00008817.bin
d3e3c4c695a5568112f49f3ab66aa8b79e51d740b5a63697153cc8a3d0cf5fc9
pdf-font-stream PDF embedded font (sfnt) at offset 0x8817 10248 bytes
font_02_sfnt_off0000ab6e.bin
82ff1b67254b78c1ee0adf625a5874e83155b3daef551421cdcfc373801bb273
pdf-font-stream PDF embedded font (sfnt) at offset 0xAB6E 16436 bytes