Malicious PDF — malware analysis report

Static analysis result for SHA-256 ab7110c5423b13ee…

MALICIOUS

PDF

51.0 KB Created: 2020-08-29 12:51:07 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 10e50fb02f7deeaab7a9ef1064d0e770 SHA-1: 73da96f1ac1d09710eca873ba78be12adf2125ce SHA-256: ab7110c5423b13eee458614966d3d42205df886e0eb2e108b3ba88af446d38f8
168 Risk Score

Malware Insights

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

This PDF document contains a prominent link to 'ttraff.cc' which is flagged as a malicious redirector, specifically mentioning 'fl studio crack password'. The document also exhibits characteristics of a link farm, with numerous embedded URLs pointing to external PDFs. The presence of a 'password-protected archive handoff' heuristic suggests the document is designed to trick users into believing they need a password to access content, a common tactic to bypass gateway security. The overall goal appears to be delivering a malicious payload disguised as software cracks.

Heuristics 5

  • 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
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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=fl+studio+crack+password
    • https://static.usrfiles.com/ugd/b8c837_04df39916c0448b7893174574e4d757d.pdf
    • https://static.usrfiles.com/ugd/b8c837_bb87d76275f6410396f818cfa8ea8907.pdf
    • https://static.usrfiles.com/ugd/b8c837_9103ccc0c81647c68040e4b2ae5c9f27.pdf
    • https://static.usrfiles.com/ugd/b8c837_fff4ad784f5a4d17bf498ad3557e0813.pdf
    • https://static.usrfiles.com/ugd/e745be_144d66becc5a4e97b8d01d04f242d2f9.pdf
    • https://cdn.shopify.com/s/files/1/0431/4251/2802/files/18715296208.pdf
    • https://cdn.shopify.com/s/files/1/0428/4504/4892/files/python_data_analysis_example.pdf
    • https://static.usrfiles.com/ugd/b8c837_6ae7a3b30e464cac819b16d734e8f7b0.pdf
    • https://static.usrfiles.com/ugd/2f8cea_db1fd43991e24c2bb6a04e62f66be211.pdf
    • https://static.usrfiles.com/ugd/b8c837_13281f00f0d746fb824f14a438d82bfa.pdf
    • https://static.usrfiles.com/ugd/b8c837_5b0f340cbc6d40aa8891f4a2860b948b.pdf
    • https://static.usrfiles.com/ugd/b8c837_68d2c8855b2a4a2b8bc2f4f02c9fc655.pdf
    • https://static.usrfiles.com/ugd/b8c837_c080850913a1470aabe575ec17ed4d95.pdf
    • https://static.usrfiles.com/ugd/b8c837_9431dcffb636424b802f7aac8940d8e2.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000720c.bin
c43ac0d7f6a7603fbe9eb8fff096e9e8440ca71d26ddbf5a383c3434268d2f71		 pdf-font-stream PDF embedded font (sfnt) at offset 0x720C 5176 bytes
font_01_sfnt_off000083c8.bin
098b95bab9b8e28b20ba93c4fe662fc638a19c3c114bfa6f937638e54a0b404c		 pdf-font-stream PDF embedded font (sfnt) at offset 0x83C8 10888 bytes
font_02_sfnt_off0000a924.bin
bf8f9ece8d9d74ce2d7a98a07ee1bb8f4056faf702b3b1702118181e85f1b939		 pdf-font-stream PDF embedded font (sfnt) at offset 0xA924 16312 bytes

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