Malicious PDF — malware analysis report

Static analysis result for SHA-256 c1eeddaa3aef5cd2…

MALICIOUS

PDF

44.3 KB Created: 2020-08-22 09:16:18 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 053eefd3caf4876d1ac5cb1ae1134705 SHA-1: 25bb1de96494928e91e95a523e0020632dfe7180 SHA-256: c1eeddaa3aef5cd25127e0aa5691a38309a6b15541958cd7cc40c2cad1b0b236
150 Risk Score

Malware Insights

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

The PDF contains a significant number of embedded links, with a critical heuristic firing indicating a link farm pointing to a known malicious redirector. The primary malicious URL identified is https://ttraff.ru/pify?keyword=baruuk+build+0+forma. The document body contains garbled text and references to 'wkhtmltopdf', suggesting it was generated programmatically. The presence of numerous links, including those hosted on Shopify, indicates an attempt to distribute malicious content or redirect users to phishing or malware download sites.

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=baruuk+build+0+forma
    • http://files.breedingforthefuture.com/uploads/1/3/2/6/132681566/sutavumuz.pdf
    • http://files.simmons4house53.com/uploads/1/3/0/7/130740571/0f92152285bd6.pdf
    • https://cdn.shopify.com/s/files/1/0439/2170/3067/files/22234932434.pdf
    • https://cdn.shopify.com/s/files/1/0435/6443/3566/files/nakudonebetixapuxaje.pdf
    • https://cdn.shopify.com/s/files/1/0440/9786/3832/files/wezarozowatovaj.pdf
    • https://cdn.shopify.com/s/files/1/0431/5847/0822/files/38935735507.pdf
    • https://cdn.shopify.com/s/files/1/0437/8624/0162/files/aprender_a_leer_espanol.pdf
    • https://cdn.shopify.com/s/files/1/0430/0128/2719/files/the_duff_kody_keplinger.pdf
    • https://cdn.shopify.com/s/files/1/0432/8793/7179/files/36064608732.pdf
    • https://cdn.shopify.com/s/files/1/0430/9558/9013/files/6311871197.pdf
    • https://cdn.shopify.com/s/files/1/0432/5936/3488/files/hymns_piano_sheet_music_with_letters.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_off00005b9e.bin
f3ab44023ebfdd6b326790721611ddb9b0b19d741f71b68a9c37a375c406377a		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5B9E 5268 bytes
font_01_sfnt_off00006d76.bin
998c139fa0260fb4c50499da71336bf08c9a3f8df43a118cfe631350d1d8cd22		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6D76 10020 bytes
font_02_sfnt_off00008fec.bin
6bf102e3b6f02edc66f81286f32fa0ce54e16db93fea414d2817afcdfc2f2ec8		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8FEC 16108 bytes

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