Malicious PDF — malware analysis report

Static analysis result for SHA-256 3cb43c5f5ea1d8f3…

MALICIOUS

PDF

42.2 KB Created: 2020-08-25 03:48:22 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 485f355099ae0a4d251f3ee252fe470a SHA-1: 92af94a9a34a0e3f1eb5441f15ec7ca940b10c1c SHA-256: 3cb43c5f5ea1d8f384a4dee21af18798619467e26b6e17978b9f0b75af741ee8
120 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF file contains a link farm designed to attract search engine traffic, with one prominent link leading to a known malicious redirector. The document body, though heavily obfuscated, contains text referencing 'Xforce keygen' and 'autocad 2015 free', suggesting a lure for pirated software. The primary malicious URL is https://ttraff.com/pify?keyword=xforce+keygen+32bits+autocad+2015+free, which is likely used to distribute malware.

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.com/pify?keyword=xforce+keygen+32bits+autocad+2015+free
    • http://files.gtc-elite.org/uploads/1/3/2/6/132682570/netefikuvuboz_fifajog_jubakafa.pdf
    • http://pasane.jachristensen-maker.com/uploads/1/3/1/6/131606103/4400702.pdf
    • http://delewi.baileylynas.co.uk/uploads/1/3/0/7/130776824/rufosol.pdf
    • https://cdn.shopify.com/s/files/1/0432/5782/3390/files/54062858146.pdf
    • https://cdn.shopify.com/s/files/1/0431/6377/9221/files/73323075076.pdf
    • https://cdn.shopify.com/s/files/1/0433/6871/0300/files/nonawowabor.pdf
    • https://cdn.shopify.com/s/files/1/0440/6083/6005/files/32939942471.pdf
    • https://cdn.shopify.com/s/files/1/0434/3015/0309/files/gosorunotepoduvufekekez.pdf
    • https://cdn.shopify.com/s/files/1/0429/5183/5801/files/24625848842.pdf
    • https://cdn.shopify.com/s/files/1/0434/0934/2621/files/batuworaze.pdf
    • https://cdn.shopify.com/s/files/1/0437/2611/0885/files/cadenas_de_coros_cristianos.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_off00006453.bin
cbc86ce297957c83e8fcf8e678238a08508c8f158ea4f7d8f0707d29715365f4		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6453 6052 bytes
font_01_sfnt_off00007907.bin
94c4325435f7ea3a29cbbb187bf55a153573a721f3bc1212b107c5ce55d9d25c		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7907 10288 bytes

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