Malicious PDF — malware analysis report

Static analysis result for SHA-256 ab0c3be195e43667…

MALICIOUS

PDF

43.1 KB Created: 2020-08-12 17:53:29 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: b851fcc8fb4d0d751dae9e2da30935b9 SHA-1: 7f6068bb59e94ee8a926560cf4f4b6af65920d54 SHA-256: ab0c3be195e4366741a8953547dbd820da6612e5d9c5ec8edd4ed176ccc711bd
150 Risk Score

Malware Insights

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

The PDF contains a link to a known malicious redirector, ttraff.cc, which is disguised as an 'aadhar card name change application form pdf'. The document also features a large number of external links, many hosted on Shopify, suggesting a link farm or SEO manipulation tactic to distribute malicious content. The ML classifier strongly flagged this PDF as malicious. No scripts were extracted from this sample.

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.cc/pify?keyword=aadhar+card+name+change+application+form+pdf
    • http://files.sustainablewellesley.com/uploads/1/3/1/3/131398504/f9a7d.pdf
    • http://niwubow.bekersmct.co.nz/uploads/1/3/1/4/131438216/wibabaruwiribenuweka.pdf
    • http://gogefir.luciademarcoillustrazioni.com/uploads/1/3/1/4/131482995/fovakegovi.pdf
    • http://files.niwotptac.com/uploads/1/3/1/4/131438899/faxisajigezesedoj.pdf
    • https://cdn.shopify.com/s/files/1/0433/8194/8567/files/66482999666.pdf
    • https://cdn.shopify.com/s/files/1/0429/2021/4681/files/torigeguxogimavowisuxopub.pdf
    • https://cdn.shopify.com/s/files/1/0434/0357/5454/files/52280409505.pdf
    • https://cdn.shopify.com/s/files/1/0435/1610/0776/files/bevekexuwelajex.pdf
    • https://cdn.shopify.com/s/files/1/0434/3637/6214/files/wabukabipazi.pdf
    • https://cdn.shopify.com/s/files/1/0431/3173/2132/files/zedekukivezomegiropogep.pdf
    • https://cdn.shopify.com/s/files/1/0428/5323/6902/files/7321860553.pdf
    • https://cdn.shopify.com/s/files/1/0430/8038/4674/files/76015111583.pdf
    • https://cdn.shopify.com/s/files/1/0435/9228/6363/files/26166664600.pdf
    • https://cdn.shopify.com/s/files/1/0432/8987/0491/files/dizilofisadufugabidumemam.pdf
    • https://cdn.shopify.com/s/files/1/0437/2683/1784/files/tixidosodo.pdf
    • https://cdn.shopify.com/s/files/1/0429/7133/2767/files/3162056849.pdf
    • https://cdn.shopify.com/s/files/1/0432/2505/5389/files/biopac_student_lab_manual.pdf
    • https://cdn.shopify.com/s/files/1/0440/7063/3624/files/zuvuruzirarozu.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_off00006901.bin
07b62295d962e90af0c4ea95c78140ad80e4e2da1b0f402ab9800ebf9c9c3fab
pdf-font-stream PDF embedded font (sfnt) at offset 0x6901 5380 bytes
font_01_sfnt_off00007b1d.bin
db03fea67f1e027025a261388e8fc018949b60c3f3364959e4bf2ffd48a9b30f
pdf-font-stream PDF embedded font (sfnt) at offset 0x7B1D 10376 bytes