Malicious PDF — malware analysis report

Static analysis result for SHA-256 e2e89838482d6e8e…

MALICIOUS

PDF

46.1 KB Created: 2020-08-26 12:51:37 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 607166925102923fecbb6f5d226a3fbb SHA-1: 6eaad1a86acfebc7ce62c78dda849ccb422cfd96 SHA-256: e2e89838482d6e8efe15acd2d7237710dc1e5f668a468c4df6b000795057c141
120 Risk Score

Malware Insights

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

The PDF contains a link that redirects to malicious infrastructure, disguised as a book about emotional intelligence. The PDF also contains a large number of external links, many of which point to Shopify domains hosting other PDFs, suggesting a link farm or SEO poisoning tactic. The primary malicious IOC is the redirector URL.

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.link/pify?keyword=inteligencia+emocional+libro
    • http://xevevube.skipperstone.com/uploads/1/3/1/4/131407089/solif_tovidula.pdf
    • http://moruma.mycupidclothing.com/uploads/1/3/0/7/130738902/521bf7e943d25f.pdf
    • http://ciec.edu.co/
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/nebisineseboji.pdf
    • https://cdn.shopify.com/s/files/1/0434/6901/3157/files/lolupisovu.pdf
    • https://cdn.shopify.com/s/files/1/0461/7266/8057/files/creda_storage_heater_instruction_manual.pdf
    • https://cdn.shopify.com/s/files/1/0438/6612/8549/files/wosirefijelafexulutogi.pdf
    • https://cdn.shopify.com/s/files/1/0432/0080/7070/files/katya_elise_henry_workout_free.pdf
    • https://cdn.shopify.com/s/files/1/0430/4571/6129/files/46073518897.pdf
    • https://cdn.shopify.com/s/files/1/0435/4267/5608/files/tedofudawo.pdf
    • https://cdn.shopify.com/s/files/1/0459/9231/2999/files/donadizoduxudemiboge.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_off000053cc.bin
600019b35fc20a7b43b584b991e226c402ee45ea584db9047d233e33aee9071d		 pdf-font-stream PDF embedded font (sfnt) at offset 0x53CC 5016 bytes
font_01_sfnt_off000064ba.bin
8db65adc699bed2ed4e99b174e414cace916d9ae25f4e5597e3d94de4d1667c8		 pdf-font-stream PDF embedded font (sfnt) at offset 0x64BA 2116 bytes
font_02_sfnt_off00006e62.bin
daee338bcf9e136f862ab48d9acae3957899f3e86a096e733aaad3fb720d3618		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6E62 11576 bytes
font_03_sfnt_off0000945d.bin
434aae299edf0176e671ab3bc0d322c8073aab91b2f5b9b6b437fcae9386e09a		 pdf-font-stream PDF embedded font (sfnt) at offset 0x945D 16256 bytes

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