Malicious PDF — malware analysis report

Static analysis result for SHA-256 3ccd04532c4dd807…

MALICIOUS

PDF

50.0 KB Created: 2020-07-25 02:42:13 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 620ab986dfadaae13f0664d65e649b03 SHA-1: f004e6cae4a4144bdf72e8d718200145f5c106c3 SHA-256: 3ccd04532c4dd807e8ceb27415adcef44535f680185fe66b7f26a66b1be5d525
120 Risk Score

Malware Insights

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

The PDF file contains a heuristic firing for PDF_MALICIOUS_REDIRECTOR_LINK, indicating it directs users to malicious infrastructure. The document body, though heavily obfuscated, contains text related to 'airline ticket template word free', suggesting a lure. The primary IOC is the redirector URL, which is likely used to deliver a secondary payload or phish for credentials.

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=airline+ticket+template+word+free
    • http://files.lincolnfencecontractors.com/uploads/1/3/2/6/132681938/7c5f525598fb.pdf
    • http://files.shop120southmain.com/uploads/1/3/1/6/131607522/sabed.pdf
    • http://files.kelownabreastfeedingcafe.com/uploads/1/3/1/3/131379608/709461fb89f690.pdf
    • http://files.shop120southmain.com/uploads
    • https://cdn.shopify.com/s/files/1/0435/1010/4228/files/95104078661.pdf
    • https://cdn.shopify.com/s/files/1/0435/0581/1608/files/3811581945.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/rirolor.pdf
    • https://cdn.shopify.com/s/files/1/0431/8861/7378/files/juwepogeluzekozigak.pdf
    • https://cdn.shopify.com/s/files/1/0430/4217/7181/files/24073557095.pdf
    • https://cdn.shopify.com/s/files/1/0435/2756/9576/files/54225074952.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/909040323.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/44628440260.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/mutiga.pdf
    • https://cdn.shopify.com/s/files/1/0432/7764/8027/files/21034396210.pdf
    • https://cdn.shopify.com/s/files/1/0438/6550/5952/files/jonubesovijopurazafo.pdf
    • https://cdn.shopify.com/s/files/1/0435/0522/1784/files/32337973715.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_off0000873f.bin
96aab88f4de206c092375af90978a0f2e15194fa9332eed05f3e310b9c8978c7		 pdf-font-stream PDF embedded font (sfnt) at offset 0x873F 5056 bytes
font_01_sfnt_off0000985e.bin
6fff6a7d420a7a4e378b914b86a814c90da3363f60d791a5e4f7eead248f4028		 pdf-font-stream PDF embedded font (sfnt) at offset 0x985E 10124 bytes

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