Malicious PDF — malware analysis report

Static analysis result for SHA-256 d2ac06bcfd602992…

MALICIOUS

PDF

57.4 KB Created: 2020-08-23 23:23:38 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: b3b82a3525b28a5705ca6695719ba6f0 SHA-1: fae85e39739c7648d11375b412a84b0911b61709 SHA-256: d2ac06bcfd602992bf895bd6a272fb5aff0e09e12f741dc4dbd8ec8715696122
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.ru, disguised as a holiday plan. This redirector likely leads to further malicious content or exploits. The PDF also hosts a large number of external links, many pointing to Shopify, which is characteristic of SEO link farm abuse to improve search engine ranking for malicious content. 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.ru/pify?keyword=ferienplan+baden+w%25C3%25BCrttemberg+2019+pdf
    • http://files.chiropractic-now.com/uploads/1/3/0/8/130814605/3f4da99.pdf
    • https://cdn.shopify.com/s/files/1/0428/8462/8633/files/30591610511.pdf
    • https://cdn.shopify.com/s/files/1/0436/4930/2693/files/kidulasopixabaliduled.pdf
    • https://cdn.shopify.com/s/files/1/0436/5982/1209/files/lokage.pdf
    • https://cdn.shopify.com/s/files/1/0463/0393/6669/files/unity_2d_animator_sprite_sheet.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/meragavafeduxilaxopuxaw.pdf
    • https://cdn.shopify.com/s/files/1/0435/2439/1067/files/bhaskar_oru_rascal_movie_worldfree4u.pdf
    • https://cdn.shopify.com/s/files/1/0432/3491/8558/files/nifidorunumuwivulaj.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/34993807018.pdf
    • https://cdn.shopify.com/s/files/1/0427/8085/2383/files/6010280211.pdf
    • https://cdn.shopify.com/s/files/1/0438/0049/4237/files/article_370_in_urdu_language.pdf
    • https://cdn.shopify.com/s/files/1/0429/5848/7703/files/danurakuvupafovuraludife.pdf
    • https://cdn.shopify.com/s/files/1/0429/1778/9863/files/92288916778.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_off000087ea.bin
6371113c0b89de31c2c69ae5064b07335452263ea21b5d1361f6399799a5ab18
pdf-font-stream PDF embedded font (sfnt) at offset 0x87EA 5652 bytes
font_01_sfnt_off00009b15.bin
9317ef04d5a19fc5ea627402d52389c75543829a18227ae9bf2b667c8e8e0b83
pdf-font-stream PDF embedded font (sfnt) at offset 0x9B15 14900 bytes
font_02_sfnt_off0000c814.bin
05d2457133b820fa77aa358e30e9acfbad3f04c46ced9a37296d9311117db176
pdf-font-stream PDF embedded font (sfnt) at offset 0xC814 4324 bytes