Malicious PDF — malware analysis report

Static analysis result for SHA-256 24aebd441eabd51b…

MALICIOUS

PDF

58.9 KB Created: 2020-08-02 14:44:32 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 66f5bac10dc1163c10a8630d1eb52789 SHA-1: fc37db5e2f8c7e930f5cc58a6fd4ebc54d792600 SHA-256: 24aebd441eabd51bcea7a499bbaec0aa7d9b7aa141725ae869f5488af2564f71
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, many of which point to external PDFs hosted on Shopify. One of these links, 'https://ttraff.com/pify?keyword=redis+on+mac', is flagged as a malicious redirector. This suggests the document is designed to lure users to malicious infrastructure through a link farm, likely for further exploitation or phishing.

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=redis+on+mac
    • http://files.doubleimagetheaterlab.com/uploads/1/3/2/6/132681617/67b562ad87.pdf
    • http://files.judith-wiley.ca/uploads/1/3/1/3/131398164/desiviz.pdf
    • http://files.carmentcraven.com/uploads/1/3/1/1/131164386/66f6a57.pdf
    • http://files.ciampateam.com/uploads/1/3/0/9/130969656/dabavavagotader.pdf
    • https://cdn.shopify.com/s/files/1/0428/1673/3340/files/gugitelidamovow.pdf
    • https://cdn.shopify.com/s/files/1/0432/6631/0299/files/corsair_mic_not_working.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/vuxopikuxoxixu.pdf
    • https://cdn.shopify.com/s/files/1/0433/3197/7370/files/63063397147.pdf
    • https://cdn.shopify.com/s/files/1/0428/7424/1187/files/gosapuvapadekula.pdf
    • https://cdn.shopify.com/s/files/1/0428/8305/5782/files/pomotumaxizodirexumeferur.pdf
    • https://cdn.shopify.com/s/files/1/0428/8629/9815/files/nys_court_officer.pdf
    • https://cdn.shopify.com/s/files/1/0431/4162/8072/files/dexiwimi.pdf
    • https://cdn.shopify.com/s/files/1/0429/8529/1937/files/56727342430.pdf
    • https://cdn.shopify.com/s/files/1/0430/9444/2137/files/rudut.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/9467339244.pdf
    • https://cdn.shopify.com/s/files/1/0430/7353/6149/files/duxivij.pdf
    • https://cdn.shopify.com/s/files/1/0431/1616/7328/files/subaru_pressure_washer_costco.pdf
    • https://cdn.shopify.com/s/files/1/0435/8583/1070/files/ridititenozen.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 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00008056.bin
000b5302a393a75cfade40302167bb0a4db9888526d36e7894375c7fb990e1ee		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8056 4672 bytes
font_01_sfnt_off0000900f.bin
ffc5e13e708b71365fb9c67886f0485f3002a4b6d9f704b86611e6f65747565c		 pdf-font-stream PDF embedded font (sfnt) at offset 0x900F 4028 bytes
font_02_sfnt_off00009f39.bin
bafa12a7b7776a6b4646ff75f5e52047bfd890718165131bad23aa008562bf02		 pdf-font-stream PDF embedded font (sfnt) at offset 0x9F39 15304 bytes
font_03_sfnt_off0000cfda.bin
1062cd8ddf90f4344fa193b395386d5669df1a952e5759311ca261a71931f361		 pdf-font-stream PDF embedded font (sfnt) at offset 0xCFDA 4324 bytes

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