Malicious PDF — malware analysis report

Static analysis result for SHA-256 1cc911a8a0144cfc…

MALICIOUS

PDF

40.0 KB Created: 2020-08-19 07:23:45 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: af04bfd88e4a1f295028897ae9391bfc SHA-1: c9b4c3ec163ee3e67077fc40858b13c7f5393220 SHA-256: 1cc911a8a0144cfc3fb735e138bbd87dbb8230e37ffee949500eac186a02ce3d
150 Risk Score

Malware Insights

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

The PDF file contains a heuristic firing for a malicious redirector link, pointing to 'https://ttraff.ru/pify?keyword=compliance+program+risk+assessment+template'. Additionally, it exhibits characteristics of a PDF link farm, with numerous embedded links, many hosted on cdn.shopify.com. The document body, though heavily obfuscated, contains text related to 'Compliance program risk assessment template' and mentions 'wkhtmltopdf', suggesting a lure to disguise the malicious links. The primary malicious IOC is the redirector URL.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

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.ru/pify?keyword=compliance+program+risk+assessment+template
    • http://likefuwu.totnesyoga.co.uk/uploads/1/3/2/7/132740892/2961611.pdf
    • http://files.321letshavefun.co.uk/uploads/1/3/1/4/131483108/c131a.pdf
    • http://files.carriebburnscyrenesmrgc.com/uploads/1/3/0/9/130969645/a58d67ac42ea7.pdf
    • https://cdn.shopify.com/s/files/1/0430/0649/2823/files/gupasizazarirudox.pdf
    • https://cdn.shopify.com/s/files/1/0440/4881/0149/files/besirab.pdf
    • https://cdn.shopify.com/s/files/1/0437/7663/9127/files/bailey_and_love_new_edition.pdf
    • https://cdn.shopify.com/s/files/1/0432/8564/3419/files/91874179005.pdf
    • https://cdn.shopify.com/s/files/1/0429/9263/1962/files/vukizalapakirubufoluwuko.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/5578033559.pdf
    • https://cdn.shopify.com/s/files/1/0437/3102/6071/files/appareillage_legrand_mosaic.pdf
    • https://cdn.shopify.com/s/files/1/0431/7931/1268/files/80962624851.pdf
    • https://cdn.shopify.com/s/files/1/0435/3835/0231/files/92116073070.pdf
    • https://cdn.shopify.com/s/files/1/0433/1077/6473/files/67675306349.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00005f0f.bin
b799a385043e1c2ddf76640d9ad4367fdb97f3512c06c923a0f110ea83c57d9b		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5F0F 5224 bytes
font_01_sfnt_off000070b9.bin
f5651771102b4d2f10f370fcf7152b6a3f3bc8b55b7686c2cdc6df7bfd9db5fe		 pdf-font-stream PDF embedded font (sfnt) at offset 0x70B9 10076 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.