Malicious PDF — malware analysis report

Static analysis result for SHA-256 986aa566c765f009…

MALICIOUS

PDF

34.3 KB Created: 2020-08-30 20:36:16 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 79c6c103a1bce2d53c9ed98b6b8d91e7 SHA-1: 1be1c8806f1af9c62bb64d79cc6b65144c715d4a SHA-256: 986aa566c765f009fbf3c81bdf099d2a3bbf61d42171237d6e1f4847ac3242ae
120 Risk Score

Malware Insights

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

The PDF file contains a significant number of embedded links, with one identified as a malicious redirector. This suggests the document's primary purpose is to lure users to malicious sites. The presence of a link farm further supports this, indicating an attempt to distribute malicious content or conduct phishing operations. 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/wix?keyword=coreograf%25C3%25ADa+elegante+jayden+rodrigue
    • https://static.usrfiles.com/ugd/b65acf_a173d2ba4830453c9345b6d49539a03f.pdf
    • https://static.usrfiles.com/ugd/8c0e65_e405153a478b4edcb0f8d41ad323161d.pdf
    • https://static.usrfiles.com/ugd/b8c837_9bf4c146d25743d1b72ffe676366da53.pdf
    • https://cdn.shopify.com/s/files/1/0435/6508/8936/files/puwawotuvinewosifaroxi.pdf
    • https://cdn.shopify.com/s/files/1/0429/6884/2393/files/color_blindness_book_download.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/muxajuvorupi.pdf
    • https://cdn.shopify.com/s/files/1/0435/6712/0539/files/bank_account_java.pdf
    • https://cdn.shopify.com/s/files/1/0430/4466/7553/files/2622136366.pdf
    • https://cdn.shopify.com/s/files/1/0461/7273/3603/files/majonutotux.pdf
    • https://cdn.shopify.com/s/files/1/0435/8828/8670/files/38667288889.pdf
    • https://cdn.shopify.com/s/files/1/0435/5552/0667/files/dunake.pdf
    • https://cdn.shopify.com/s/files/1/0440/6149/1352/files/dafupavumixiga.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_off0000446a.bin
4973094b7b4b35265b9cf4c8afcaebe9a92662cd379c014b361d1a688bb9007b		 pdf-font-stream PDF embedded font (sfnt) at offset 0x446A 5036 bytes
font_01_sfnt_off000055a7.bin
60badf083dbce95a4e425ee6f2157d852d45374c241948e5bc3e08d501da5885		 pdf-font-stream PDF embedded font (sfnt) at offset 0x55A7 11300 bytes

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