Malicious PDF — malware analysis report

Static analysis result for SHA-256 d04c00c69e7d7dec…

MALICIOUS

PDF

40.8 KB Created: 2020-08-15 08:39:03 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 55f49206d09c346f2da234e812b5e0cd SHA-1: d2f6ece2381cf1bf0861ef2a8544df9043b26b31 SHA-256: d04c00c69e7d7dec1bf9e9cea6bec10804477c134b7c7b645e356aa7e9a220a9
120 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link, which is also present in the document body. This link, 'https://ttraff.ru/pify?keyword=afterlight+premium+apk', is designed to lure users into downloading potentially malicious software. The document also exhibits characteristics of a link farm, with numerous embedded URLs pointing to various PDF files, likely for SEO manipulation or to obscure malicious activity. 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.ru/pify?keyword=afterlight+premium+apk
    • http://files.citystarhotelyangon.com/uploads/1/3/1/0/131069968/suzalamesi_muxos.pdf
    • http://tepen.beaconforlife.com/uploads/1/3/1/1/131164250/63f7fa1.pdf
    • https://cdn.shopify.com/s/files/1/0438/5934/5573/files/different_definitions_of_education.pdf
    • https://cdn.shopify.com/s/files/1/0430/8451/3434/files/php_aes_encryption.pdf
    • https://cdn.shopify.com/s/files/1/0430/0180/6997/files/76292660992.pdf
    • https://cdn.shopify.com/s/files/1/0436/0372/2402/files/carbon_footprint_download.pdf
    • https://cdn.shopify.com/s/files/1/0430/4191/5042/files/bilojokirufotidofewidos.pdf
    • https://cdn.shopify.com/s/files/1/0440/7567/9896/files/hippocampal_synaptic_plasticity_spatial_memory_and_anxiety.pdf
    • https://cdn.shopify.com/s/files/1/0431/1007/2481/files/fundamento_prueba_catalasa.pdf
    • https://cdn.shopify.com/s/files/1/0436/9481/7445/files/33223491532.pdf
    • https://cdn.shopify.com/s/files/1/0428/9665/4489/files/akuntansi_pemerintah.pdf
    • https://cdn.shopify.com/s/files/1/0440/8924/5861/files/rorovapusawabobofaxumi.pdf
    • https://cdn.shopify.com/s/files/1/0436/6021/4425/files/are_vpns_safe.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_off0000606b.bin
7ebae88add4180045615e08e2e15a91355c166f6256e3ff4f576ed74c6b8c38a		 pdf-font-stream PDF embedded font (sfnt) at offset 0x606B 5188 bytes
font_01_sfnt_off000071ee.bin
3b0578c61d1b890bee61e90c6ab5f3351505854192dc814117cf166cc64ce876		 pdf-font-stream PDF embedded font (sfnt) at offset 0x71EE 10864 bytes

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