Malicious PDF — malware analysis report

Static analysis result for SHA-256 40017e41e4905e06…

MALICIOUS

PDF

44.2 KB Created: 2020-08-14 12:17:35 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: a5629f6c048063bca65ad2def4462692 SHA-1: 12c25dfc2ed922a782df7da90396e71420f9b43c SHA-256: 40017e41e4905e060d2b65cca2383cb8c2b0f22e6efabf0d046f4a90531f10be
150 Risk Score

Malware Insights

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

The PDF file contains multiple embedded links, with one specifically pointing to a known malicious redirector infrastructure. The document body, though heavily obfuscated, contains text related to 'company organogram template excel' and the malicious URL, suggesting a lure to a phishing or malware distribution site. The presence of numerous external PDF links, many hosted on Shopify, indicates a link farm strategy, likely to improve SEO for malicious content or to obscure the true destination. 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=company+organogram+template+excel
    • http://files.altcoin-tax.com/uploads/1/3/2/6/132681501/3795037.pdf
    • http://files.molly-allen.com/uploads/1/3/1/3/131384081/wojolado.pdf
    • http://files.kimberly-andrews.com/uploads/1/3/2/6/132682701/judik-pagaxab.pdf
    • https://cdn.shopify.com/s/files/1/0447/3736/4117/files/dalubosenatodulubuvaxe.pdf
    • https://cdn.shopify.com/s/files/1/0433/6808/7701/files/20175198840.pdf
    • https://cdn.shopify.com/s/files/1/0437/0730/2037/files/dezufezipig.pdf
    • https://cdn.shopify.com/s/files/1/0434/0216/6428/files/36686772660.pdf
    • https://cdn.shopify.com/s/files/1/0437/0880/9384/files/computer_science_class_12_book.pdf
    • https://cdn.shopify.com/s/files/1/0437/8899/2674/files/catalogue_panasonic.pdf
    • https://cdn.shopify.com/s/files/1/0429/2454/0071/files/69808297303.pdf
    • https://cdn.shopify.com/s/files/1/0438/2107/2546/files/baxod.pdf
    • https://cdn.shopify.com/s/files/1/0436/7895/7718/files/92690332762.pdf
    • https://cdn.shopify.com/s/files/1/0433/0065/1158/files/fewibosadiwuruwal.pdf
    • https://cdn.shopify.com/s/files/1/0437/4387/1127/files/alternatives_conomiques.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_off00006234.bin
a6e58fcd2bda743b478d9c7782095b35b66a15479eb5d42496291bcf6035d7db
pdf-font-stream PDF embedded font (sfnt) at offset 0x6234 5008 bytes
font_01_sfnt_off0000732c.bin
248daafc79c14c8dd74d693e235f999f807ec54e17dbf322ed52d125254a237a
pdf-font-stream PDF embedded font (sfnt) at offset 0x732C 10784 bytes
font_02_sfnt_off00009611.bin
05d2457133b820fa77aa358e30e9acfbad3f04c46ced9a37296d9311117db176
pdf-font-stream PDF embedded font (sfnt) at offset 0x9611 4324 bytes