Malicious PDF — malware analysis report

Static analysis result for SHA-256 d6e866a9573e6559…

MALICIOUS

PDF

40.9 KB Created: 2020-08-29 23:45:47 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 7d7f92a0dfd418d966ad176708c07332 SHA-1: 34fad8cc79e2d6dd660716b992ad7c78d7c4ef88 SHA-256: d6e866a9573e655931bbda70fc949787ad837e92b15f40c65235a7e42dc02223
160 Risk Score

Malware Insights

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

The PDF contains a malicious redirector link to 'ttraff.com' which is associated with a lure to download a ROM. The document also includes a mass external PDF link farm, suggesting SEO poisoning tactics. The heuristic 'SE_PASSWORD_ARCHIVE_LURE' indicates that the document likely provides instructions to decrypt a password-protected archive, a common method to bypass gateway security.

Heuristics 4

  • 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.
  • Password-protected archive handoff high SE_PASSWORD_ARCHIVE_LURE
    Document gives password instructions for an archive or attachment — often used to keep payloads encrypted until after gateway scanning
  • 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/wix?keyword=download+omega+ruby+3ds+rom
    • https://static.usrfiles.com/ugd/493135_a788fe4e53d24a4a92c7dcbb2e35917b.pdf
    • https://static.usrfiles.com/ugd/3cb679_a44a04d5ec5e4a13add7a031feccb2fa.pdf
    • https://static.usrfiles.com/ugd/b8c837_559195fe310343769ccc0ecd72120be9.pdf
    • https://cdn.shopify.com/s/files/1/0431/5162/2305/files/rovikogevaborig.pdf
    • https://cdn.shopify.com/s/files/1/0434/8860/8418/files/telecharger_dsm_5_gratuit.pdf
    • https://cdn.shopify.com/s/files/1/0431/6132/1634/files/koplayer_android_emulator_for_pc_free.pdf
    • https://static.usrfiles.com/ugd/b8c837_6bec7bd20ef2441ba72da88219e6da27.pdf
    • https://static.usrfiles.com/ugd/b8c837_67223690712b47959c7584093a5416d9.pdf
    • https://static.usrfiles.com/ugd/b8c837_96ef957819994517b88d579f13cb03cc.pdf
    • https://static.usrfiles.com/ugd/097bd5_9dc3f89a40a34dedb876011cc29c0c56.pdf
    • https://static.usrfiles.com/ugd/b8c837_15a7d94fea334c708ab20de89bbd90e2.pdf
    • https://static.usrfiles.com/ugd/b5aed9_c2d0cada48ab49f68417ed2f7f6f5e93.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_off00006092.bin
c7db88573be55315d908400a64b0126b56fea1bd515ef60fbbdbf5ea65ee13c9		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6092 5640 bytes
font_01_sfnt_off000073c3.bin
4d0f30e317632a687543c91d3b9dd7c4a5586f43c6377b25e2311ca0226779a4		 pdf-font-stream PDF embedded font (sfnt) at offset 0x73C3 10356 bytes

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