Malicious PDF — malware analysis report

Static analysis result for SHA-256 f5bce8e593e80638…

MALICIOUS

PDF

40.2 KB Created: 2020-08-22 22:24:05 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 968e3850ef2f7b219f151b8f42823d46 SHA-1: f408bf307654a95134a58af507d4c5fd85554a82 SHA-256: f5bce8e593e8063853f1babf6a7187343c6cdf51b669b5688bcc4b2eaa58b273
120 Risk Score

Malware Insights

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

The PDF contains a significant number of embedded links, with a critical heuristic firing indicating a link to known malicious redirector infrastructure. The document body, though heavily obfuscated, contains a URL that matches the malicious redirector. The presence of numerous external PDF links suggests a link farm or SEO manipulation tactic, potentially to obscure malicious activity or drive traffic to malicious sites.

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=kendrick+lamar+backseat+freestyle+music+video In PDF document text
    • http://xegevela.fingerstyle-guitar-today.com/uploads/1/3/1/6/131636777/luxovibazunijiber.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/0996/6239/files/11239184873.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0158/5570/files/simikegoxodoloz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7958/9283/files/rc_airplane_design_software_free.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/5122/1146/files/77580752166.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9816/8727/files/fovamorofurival.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/6141/8913/files/82421828693.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/5152/1947/files/voxowawu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6516/3422/files/37975474321.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/9105/7058/files/adding_subtracting_mixed_numbers_worksheet.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/basugogigarerebid.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4088/2340/files/zepot.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/4190/5045/files/mimagesogisizasatilagif.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/4539/5359/files/amigos_para_siempre_sheet_music.pdfIn PDF document text
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
    • http://purl.org/dc/elements/1.1/In PDF document text
    • http://ns.adobe.com/pdf/1.3/In PDF document text
    • http://ns.adobe.com/xap/1.0/In PDF document text
    • http://ns.adobe.com/xap/1.0/mm/In PDF document text
    • http://ns.adobe.com/xap/1.0/rights/In PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000509f.bin
e724f3753e9667076cae1246ec91e31d3fdb410a54049aa3d4d748eb4a8cf801		 pdf-font-stream PDF embedded font (sfnt) at offset 0x509F 5384 bytes
font_01_sfnt_off000062d3.bin
44054965d38072d3a629fbaece543805a0bbb3c1befe052e7dbfe9c4e9a791e7		 pdf-font-stream PDF embedded font (sfnt) at offset 0x62D3 10228 bytes
font_02_sfnt_off000085a1.bin
05d2457133b820fa77aa358e30e9acfbad3f04c46ced9a37296d9311117db176		 pdf-font-stream PDF embedded font (sfnt) at offset 0x85A1 4324 bytes

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