Malicious PDF — malware analysis report

Static analysis result for SHA-256 36241c6d7f745b33…

MALICIOUS

PDF

41.8 KB Created: 2020-08-26 10:52:18 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: b0c47db8228d1693937aad853718ae04 SHA-1: 4c5b2b11630e7c47425b2ffeed565a632f84cd93 SHA-256: 36241c6d7f745b33e7e48d5c644462d986934ed9978722634847675173f2d3a2
150 Risk Score

Malware Insights

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

The PDF contains a link farm designed to redirect users to malicious infrastructure, specifically the URL https://ttraff.ru/pify?keyword=james+maher+advanced+tung+style+acupuncture. This indicates a phishing or scam attempt. The ML classifier strongly supports the malicious verdict.

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=james+maher+advanced+tung+style+acupuncture
    • http://files.sheerramjohn.com/uploads/1/3/1/4/131437932/fad851581a2.pdf
    • http://wogoban.organicnaturopathicservices.com/uploads/1/3/0/7/130739278/sifaguguzisax-vewopor-nafunoluluxoxe.pdf
    • https://cdn.shopify.com/s/files/1/0431/6784/2459/files/44455971638.pdf
    • https://cdn.shopify.com/s/files/1/0430/7245/4810/files/sony_str_dh130_manual.pdf
    • https://cdn.shopify.com/s/files/1/0454/5403/3054/files/buyers_guide_filler.pdf
    • https://cdn.shopify.com/s/files/1/0440/7784/2584/files/53139221489.pdf
    • https://cdn.shopify.com/s/files/1/0430/0118/4417/files/penowiwadalubof.pdf
    • https://cdn.shopify.com/s/files/1/0428/5281/0911/files/81949306457.pdf
    • https://cdn.shopify.com/s/files/1/0437/7467/3050/files/87725758117.pdf
    • https://cdn.shopify.com/s/files/1/0428/5077/9295/files/99489901301.pdf
    • https://cdn.shopify.com/s/files/1/0429/7385/5903/files/fivewezafexofanibe.pdf
    • https://cdn.shopify.com/s/files/1/0428/2220/5607/files/best_cracked_software_website.pdf
    • https://cdn.shopify.com/s/files/1/0432/2577/6288/files/wuravowowukasi.pdf
    • https://cdn.shopify.com/s/files/1/0437/2440/6935/files/29088601930.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/
    • https://cdn.shopify.com/s/files/1/0428/5077/9295/f

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006512.bin
86b438dae4b3eeb253066c1f24c9ea107c3c8db3e620ad9879a0607964eb1f12		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6512 5640 bytes
font_01_sfnt_off00007820.bin
474aa839570f2a37bf07685e64aea2167b9421452cb5deea0dd8a1af201f78ce		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7820 9908 bytes

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