Malicious PDF — malware analysis report

Static analysis result for SHA-256 7ea3afde1e88054e…

MALICIOUS

PDF

37.4 KB Created: 2020-07-11 12:00:04 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 8d7b754e1885d889e9ff6844b0e96fd9 SHA-1: 6861ba34db21a2a23c617fe03a14a78ac6c1459a SHA-256: 7ea3afde1e88054e3e8978af3d571efb8e936f63c6cc1043b96b2c965f08f4b6
120 Risk Score

Malware Insights

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

The PDF contains numerous links to external PDF files, a technique often used in SEO poisoning or link farm attacks. One prominent link redirects to 'https://ttraff.ru/pify?keyword=the+five+people+you+meet+in+heaven+epub', which is flagged as a malicious redirector. The document body, though heavily obfuscated, contains text related to a book title and the authoring application, suggesting a lure to disguise the malicious links. The presence of many PDF links indicates a broad distribution attempt.

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=the+five+people+you+meet+in+heaven+epub
    • http://files.boathousetx.com/uploads/1/3/1/3/131381352/liniradodire.pdf
    • http://files.artbystein.com/uploads/1/3/1/6/131607522/848609.pdf
    • http://files.criticatxl.com/uploads/1/3/1/4/131437778/9100780.pdf
    • http://files.faithlosgatos.org/uploads/1/3/0/8/130874018/tebomijugajipigazig.pdf
    • http://files.cornhoartist.com/uploads/1/3/1/4/131407980/3265051.pdf
    • http://files.oregonfestivalforworldrelief.com/uploads/1/3/1/3/131383673/donokomizun_nexaxo.pdf
    • http://files.thepartitionarchives.com/uploads/1/3/1/3/131379552/5643594.pdf
    • http://files.cleoejacksoniii.com/uploads/1/3/0/9/130969048/19b0ffaca5ad38.pdf
    • http://files.passerprojects.com/uploads/1/3/0/7/130740493/xuferipura.pdf
    • http://files.innerheartpathways.com/uploads/1/3/2/6/132681002/46e9335.pdf
    • http://files.ncfllandftc.com/uploads/1/3/0/7/130739924/41354.pdf
    • https://temutexi.files.wordpress.com/2020/06/76597132301.pdf
    • https://lipigipoxa.files.wordpress.com/2020/07/pukodegodojotolu.pdf
    • https://fepubidiwevu773413026.files.wordpress.com/2020/06/69651101724.pdf
    • https://besuzoze.files.wordpress.com/2020/07/lilipebikoput.pdf
    • https://karutetok765055257.files.wordpress.com/2020/06/lizamutolilejobad.pdf
    • https://juruvedofe.files.wordpress.com/2020/07/bewelefejela.pdf
    • https://cdn.shopify.com/s/files/1/0432/5310/4790/files/89152318093.pdf
    • https://cdn.shopify.com/s/files/1/0427/9474/6023/files/3867429044.pdf
    • https://cdn.shopify.com/s/files/1/0431/6954/6395/files/sovumugewogusaxogutixot.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/sakemiribukewud.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/75609531209.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_off00005589.bin
d23f34e666f32e2997c5b932b8f3ce125644d7cef9387f5401fb805aa37b06c9
pdf-font-stream PDF embedded font (sfnt) at offset 0x5589 5000 bytes
font_01_sfnt_off00006672.bin
e573b56092520764d7d988a1a9e3bc52060bef685dd10098bf1c854e80fd7958
pdf-font-stream PDF embedded font (sfnt) at offset 0x6672 9908 bytes