Malicious PDF — malware analysis report

Static analysis result for SHA-256 1f05e020d0b1fe40…

MALICIOUS

PDF

39.7 KB Created: 2020-09-03 22:52:21 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 03cd681cd52cfdb1b8e188418552a0fd SHA-1: 7307b00fea10fd9ab44c7cc3b8c1dc3429709c3e SHA-256: 1f05e020d0b1fe4075ed536eb744e8bee066f129ff2d5c4a88902794bd6fc267
150 Risk Score

Malware Insights

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

The PDF contains a link farm designed to appear as legitimate documents, but one of the primary links redirects to a known malicious infrastructure. The document body, though heavily obfuscated, contains the malicious URL and references to other PDFs hosted on benign platforms, likely to lend credibility. The ML classifier strongly indicates maliciousness.

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.me/wix?keyword=value+added+services+in+logistics+pdf
    • https://cdn.shopify.com/s/files/1/0431/6820/2901/files/basofufegifatodeligafir.pdf
    • https://cdn.shopify.com/s/files/1/0431/6305/8340/files/taxosusedisa.pdf
    • https://cdn.shopify.com/s/files/1/0452/1938/1399/files/theory_of_alienation_karl_marx.pdf
    • https://cdn.shopify.com/s/files/1/0431/6109/2250/files/94055551510.pdf
    • https://cdn.shopify.com/s/files/1/0428/9455/7351/files/aptitude_test_preparation_download.pdf
    • https://cdn.shopify.com/s/files/1/0435/5706/0769/files/peltier_effect_project.pdf
    • https://static.usrfiles.com/ugd/8b4172_dc1878d03afe47a089aeabec8e299612.pdf
    • https://static.usrfiles.com/ugd/c8a981_67aed34daad042f4bd6542f08f24c33d.pdf
    • https://static.usrfiles.com/ugd/e3325f_2c14d60bb6a04213b2ce71220d2991ea.pdf
    • https://static.usrfiles.com/ugd/b8c837_ef9c58fd780d47ad954c7516dc40384f.pdf
    • https://cdn.shopify.com/s/files/1/0431/8153/9489/files/55288491290.pdf
    • https://cdn.shopify.com/s/files/1/0433/7270/7990/files/14757470730.pdf
    • https://cdn.shopify.com/s/files/1/0431/9415/5169/files/change_to_word_doc_online.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_off00005e98.bin
ff8c547c5065c44e3ff07a6e4a2446974f8767ea6b76a393a7a22d4ed27aac5b		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5E98 5348 bytes
font_01_sfnt_off000070e4.bin
9cd03af73523c1e7f897bdcea3f08018935c98c2e5d36dd0024f2cbba0d8353e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x70E4 9760 bytes

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