Malicious PDF — malware analysis report

Static analysis result for SHA-256 589584a1613b4ef5…

MALICIOUS

PDF

41.5 KB Created: 2020-08-03 10:41:01 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: bf2aba9d8ab3e7153bc4846b204c0dbe SHA-1: eb81fa61141d8ae5324e8db10dffb5335e0f851f SHA-256: 589584a1613b4ef594673aa59a7f55c6a8a11a4628cec82883460a433f409a8a
150 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link, specifically pointing to 'ttraff.ru'. The document body, though heavily obfuscated, contains a similar URL. The PDF also exhibits characteristics of a link farm, with numerous embedded links, many hosted on shopify.com, suggesting an attempt to distribute malicious content or engage in SEO manipulation for malicious purposes. The ML classifier strongly supports the malicious nature of this PDF.

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=whirlpool+cabrio+dryer+troubleshooting
    • http://files.wingspan-wellness.com/uploads/1/3/0/9/130969061/welugo-fopaxisupoku.pdf
    • http://files.mrkitchin.com/uploads/1/3/1/4/131438353/98b64eb97f0.pdf
    • http://files.ironriverbiblechurch.org/uploads/1/3/2/6/132695543/9097353.pdf
    • https://cdn.shopify.com/s/files/1/0430/4823/9257/files/jerogadikuwuwe.pdf
    • https://cdn.shopify.com/s/files/1/0433/5815/9006/files/69362310000.pdf
    • https://cdn.shopify.com/s/files/1/0433/9967/6060/files/rheem_classic_90_plus_parts.pdf
    • https://cdn.shopify.com/s/files/1/0432/9386/8187/files/pineapple_express_online_free.pdf
    • https://cdn.shopify.com/s/files/1/0432/2174/5825/files/14536815082.pdf
    • https://cdn.shopify.com/s/files/1/0427/9923/5228/files/sebaxukosusexan.pdf
    • https://cdn.shopify.com/s/files/1/0438/2598/7734/files/90547447740.pdf
    • https://cdn.shopify.com/s/files/1/0434/0819/5738/files/vobuvizakopixatijotum.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/71895612735.pdf
    • https://cdn.shopify.com/s/files/1/0437/8555/2030/files/sunulosagofabulekanumaz.pdf
    • https://cdn.shopify.com/s/files/1/0434/4263/4917/files/ps3_bluetooth_passkey.pdf
    • https://cdn.shopify.com/s/files/1/0431/7288/8742/files/pro_vari_2._5.pdf
    • https://cdn.shopify.com/s/files/1/0431/9143/5422/files/82809056167.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_off00006524.bin
217bb98c17ee8ec6f73f4a62a6b85f11875eba1b409b95bde9a7f01b7282754f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6524 5588 bytes
font_01_sfnt_off00007825.bin
ea585532054db58515503afebbc389c6473ed5afe046a76edb72aa3d55dac0dc		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7825 9524 bytes

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