Malicious PDF — malware analysis report

Static analysis result for SHA-256 fe10a56f944825c8…

MALICIOUS

PDF

42.0 KB Created: 2020-08-31 01:31:12 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 69e08a66a8bc66a8f8364670369faa8d SHA-1: 837beeb686cca00abca4bd81b70b77757b68cf14 SHA-256: fe10a56f944825c811cb988f702226416fe8bdac52c1b0ae89aa378fd88927f6
160 Risk Score

Malware Insights

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

The PDF contains a heuristic firing for a malicious redirector link pointing to 'ttraff.com', which is used in conjunction with a password-protected archive lure. The document body also contains this URL and numerous other PDF links, suggesting a link farm for SEO poisoning or to distribute further payloads. The presence of a malicious redirector and the password-protected archive lure indicate a likely attempt to deliver malware while evading initial detection.

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=win+rar+64+bit+pc+download
    • https://cdn.shopify.com/s/files/1/0429/9381/1619/files/zatipilogedozukupa.pdf
    • https://cdn.shopify.com/s/files/1/0432/1270/1854/files/12952631250.pdf
    • https://cdn.shopify.com/s/files/1/0435/1351/2100/files/dubarafe.pdf
    • https://static.usrfiles.com/ugd/4c76bf_8ce33a1b4a7740da85188fe159d6e6e7.pdf
    • https://static.usrfiles.com/ugd/253000_e0e66922212e439e85e4ffdb9f7dced4.pdf
    • https://static.usrfiles.com/ugd/599f1c_210befb2cc884978ba30aa2aba44e1b7.pdf
    • https://cdn.shopify.com/s/files/1/0432/2672/6568/files/launch_home_screen.pdf
    • https://cdn.shopify.com/s/files/1/0437/6199/1841/files/65058274594.pdf
    • https://cdn.shopify.com/s/files/1/0434/4630/4933/files/funewedu.pdf
    • https://cdn.shopify.com/s/files/1/0431/6246/8514/files/aeroplane_song_video_hd.pdf
    • https://cdn.shopify.com/s/files/1/0429/9020/7139/files/30718602123.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_off000059d9.bin
d836b86eb2d4f0d03a30ca680f07bdfd6689784f58a97d38783de9b0dc57da0c		 pdf-font-stream PDF embedded font (sfnt) at offset 0x59D9 5044 bytes
font_01_sfnt_off00006b07.bin
b39d15dc119c3abb0c79862f6d56b282c76b78d5dc68ccbf5e6e923d1559466a		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6B07 10048 bytes
font_02_sfnt_off00008d76.bin
d1f4a20f0e35a0564be54678b929bb8c711862c507f070c2b9a6abea8daf4378		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8D76 4324 bytes

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