Malicious PDF — malware analysis report

Static analysis result for SHA-256 95960c39557504e5…

MALICIOUS

PDF

53.7 KB Created: 2020-07-30 22:22:01 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 68d4a299df9d83146e4f67dea044a2c6 SHA-1: d6ac072555418f1a6de76790ad6dffc7f95943fc SHA-256: 95960c39557504e515e39e7945d3a7b83bbe06f1280d05d78f0bda622bd43139
120 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded links, with a critical heuristic firing indicating it's a link farm. One of the primary links directs to a known malicious redirector. The document body, though heavily obfuscated, contains text related to 'Carrier air conditioning manual pdf', suggesting a lure to disguise the malicious intent. No scripts were extracted from this sample.

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.cc/pify?keyword=carrier+air+conditioning+manual+pdf
    • http://files.swagefitness.com/uploads/1/3/1/3/131381721/rirapugurebubasunun.pdf
    • http://files.advanceprolighting.com/uploads/1/3/0/7/130739340/cc0d4ece039d.pdf
    • http://files.in-aikido.co.il/uploads/1/3/1/8/131871980/pepunijalujeb_referu.pdf
    • https://cdn.shopify.com/s/files/1/0432/8580/7269/files/tivurudelajujuworokozuli.pdf
    • https://cdn.shopify.com/s/files/1/0430/6989/8914/files/646721124.pdf
    • https://cdn.shopify.com/s/files/1/0429/8627/4977/files/69244325305.pdf
    • https://cdn.shopify.com/s/files/1/0434/4355/2416/files/2262885475.pdf
    • https://cdn.shopify.com/s/files/1/0432/7286/3904/files/7675794405.pdf
    • https://cdn.shopify.com/s/files/1/0433/3253/4440/files/37063191166.pdf
    • https://cdn.shopify.com/s/files/1/0432/5706/9721/files/16703055529.pdf
    • https://cdn.shopify.com/s/files/1/0433/9105/8070/files/vureneworur.pdf
    • https://cdn.shopify.com/s/files/1/0440/5251/2918/files/51107230400.pdf
    • https://cdn.shopify.com/s/files/1/0438/1684/5469/files/74908085595.pdf
    • https://cdn.shopify.com/s/files/1/0431/7711/5810/files/72455067561.pdf
    • https://cdn.shopify.com/s/files/1/0432/7155/3189/files/jajutevulodiwowuzev.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/
    • https://cdn.shopify.com/s/files/1/0432/7286/3904/fil

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00007842.bin
8d51d389a13f6a793ab2d8dbb00e0e7c2a02fab2ff96da0e20701d880d607d70		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7842 5204 bytes
font_01_sfnt_off000089df.bin
94e8fb6201060126814b5031c08d60c1eb3cc693966549a96e8d3189e8fffc15		 pdf-font-stream PDF embedded font (sfnt) at offset 0x89DF 12860 bytes
font_02_sfnt_off0000b2e9.bin
4591f504998740cbb4f67c0605a1e0bbe93457aaa6e8108d9fd923078b70e9f3		 pdf-font-stream PDF embedded font (sfnt) at offset 0xB2E9 16496 bytes

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