Malicious PDF — malware analysis report

Static analysis result for SHA-256 fe6f19f215f64e21…

MALICIOUS

PDF

48.8 KB Created: 2020-08-08 23:46:43 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 88dc65859536aa71fe1e50df5aa27c85 SHA-1: e8e12994b58c17c79ca66cc0d59ae6f2867eefd0 SHA-256: fe6f19f215f64e2105f0561f84daa554ae2e5ac96ea8fadc8d19bdb86ee6834d
120 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link pointing to 'https://ttraff.com/pify?keyword=boundary+condition+openfoam+pdf'. Additionally, it exhibits characteristics of a PDF link farm, embedding numerous external links, with the highest-confidence benign link being 'https://cdn.shopify.com/s/files/1/0431/1249/7313/files/63638327001.pdf'. The document body, though heavily obfuscated, contains these URLs, suggesting a lure to trick users into clicking malicious links.

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=boundary+condition+openfoam+pdf
    • http://files.aliciaallenphotography.com/uploads/1/3/2/6/132681150/a530d821785.pdf
    • http://womudut.mermaid-protector.com/uploads/1/3/1/8/131857334/sizamadinowotanakiwu.pdf
    • http://files.thewwiicampaigner.com/uploads/1/3/1/3/131380625/kugil.pdf
    • http://files.southcalgarymedicalclinic.ca/uploads/1/3/0/7/130738741/72e5526ab3d.pdf
    • http://files.blackfoxxclothing.com/uploads/1/3/1/8/131856476/4521341.pdf
    • https://cdn.shopify.com/s/files/1/0431/1249/7313/files/63638327001.pdf
    • https://cdn.shopify.com/s/files/1/0433/8204/6869/files/canara_bank_rtgs_neft_form_download.pdf
    • https://cdn.shopify.com/s/files/1/0430/8451/3429/files/59806511435.pdf
    • https://cdn.shopify.com/s/files/1/0430/9309/8660/files/dizugetatumarunoxaxere.pdf
    • https://cdn.shopify.com/s/files/1/0431/9988/9569/files/xidisidiwijirole.pdf
    • https://cdn.shopify.com/s/files/1/0434/3444/2908/files/21176333075.pdf
    • https://cdn.shopify.com/s/files/1/0429/8362/0757/files/vogiziruzedi.pdf
    • https://cdn.shopify.com/s/files/1/0428/1230/9671/files/konekezevata.pdf
    • https://cdn.shopify.com/s/files/1/0438/6455/5675/files/zaxajujuxeg.pdf
    • https://cdn.shopify.com/s/files/1/0433/9010/7815/files/character_strengths_and_virtues_handbook.pdf
    • https://cdn.shopify.com/s/files/1/0435/5417/7185/files/32052511092.pdf
    • https://cdn.shopify.com/s/files/1/0428/1548/8163/files/basic_econometrics_gujarati.pdf
    • https://cdn.shopify.com/s/files/1/0430/4361/8969/files/linear_and_nonlinear_functional_analysis_with_applications_ciarlet.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_off00006f55.bin
222c1a048a42d2daf38075af0ab6152820396289bd93b0ead6a097fc6375489b
pdf-font-stream PDF embedded font (sfnt) at offset 0x6F55 5124 bytes
font_01_sfnt_off000080bb.bin
fcae8361c8871f6095f4366f5ddb313d7ff5f768d08fbff46a794c47482aae73
pdf-font-stream PDF embedded font (sfnt) at offset 0x80BB 10904 bytes
font_02_sfnt_off0000a61e.bin
0d0f64e27578eb124b8bc81c7eceacdd166e22eddd95c81328e9fbd7de2a6333
pdf-font-stream PDF embedded font (sfnt) at offset 0xA61E 4324 bytes