Malicious PDF — malware analysis report

Static analysis result for SHA-256 bc9e264615f5899c…

MALICIOUS

PDF

53.1 KB Created: 2020-08-06 01:01:16 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 8092e3737ab11d3297f9d7f7bca3d0ae SHA-1: c3671e80438ebc9ce51fd32a15f485e4e93e12db SHA-256: bc9e264615f5899c56874a9601e296cf7986043621c1a15e6b3e8f773d55fa25
120 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell T1204.002 Malicious Link

The PDF file contains a large number of embedded links, many of which point to a link farm hosted on Shopify. One of the primary links directs to a known malicious redirector, 'ttraff.com', with a query parameter suggesting a lure related to 'violencia de genero'. This indicates a social engineering attempt to redirect the user to malicious content. No scripts were extracted, but the PDF structure and embedded links strongly suggest a phishing or redirection attack.

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=violencia+de+genero+definicion+pdf
    • http://files.elizabethbarattalmhc.com/uploads/1/3/0/9/130969435/sixugivukod.pdf
    • http://files.devokehunters.com/uploads/1/3/1/0/131069764/3678b77577.pdf
    • http://jalefu.andykoting.com/uploads/1/3/1/3/131381204/zebamalutumobax.pdf
    • http://files.woodside1-2-3-4hoa.org/uploads/1/3/1/3/131383645/a6f466623.pdf
    • https://cdn.shopify.com/s/files/1/0431/7508/4193/files/bukezebuvolo.pdf
    • https://cdn.shopify.com/s/files/1/0439/6164/7262/files/36284602200.pdf
    • https://cdn.shopify.com/s/files/1/0431/3926/8774/files/folanojaxotiv.pdf
    • https://cdn.shopify.com/s/files/1/0428/2862/8124/files/80968673084.pdf
    • https://cdn.shopify.com/s/files/1/0434/2310/5189/files/domozafa.pdf
    • https://cdn.shopify.com/s/files/1/0440/6162/2437/files/pdf_editor_app_android.pdf
    • https://cdn.shopify.com/s/files/1/0433/8860/0478/files/29133777511.pdf
    • https://cdn.shopify.com/s/files/1/0427/7560/9510/files/gusenulumikinezot.pdf
    • https://cdn.shopify.com/s/files/1/0438/9850/3336/files/21202623791.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/13977314479.pdf
    • https://cdn.shopify.com/s/files/1/0438/5472/5270/files/13154847517.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_off00008638.bin
454b0e4e973b090487eadc3ba7b9ad0e2837d1cb95eadbe3740b92d7a9127138		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8638 4816 bytes
font_01_sfnt_off0000969f.bin
c495c982f79b7a328666d566ec6be3d1c46d4b5abcd6ee962cb459a173e93c5e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x969F 10632 bytes
font_02_sfnt_off0000b926.bin
a542ec26cea93e049a2e27cd59b1347dd9bbdea13775fd7b822b3c2b3136116f		 pdf-font-stream PDF embedded font (sfnt) at offset 0xB926 4324 bytes

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