Malicious PDF — malware analysis report

Static analysis result for SHA-256 462df0aa6fd5d05f…

MALICIOUS

PDF

42.1 KB Created: 2020-08-31 18:04:57 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 41cdf8e098abc14bbaad363e9387783f SHA-1: 5ec8da0ef2d1acef73944a22d677f15c0f0fdecd SHA-256: 462df0aa6fd5d05ffe8109384d509d9433c3513bcd4fabf498c2c3e1ee4232fd
120 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF file contains a link farm and a direct link to a known malicious redirector, ttraff.ru. The document body, though heavily obfuscated, contains the same URL and text related to a 'Priest in peril osrs quest guide', suggesting a lure. The presence of multiple embedded PDF links further indicates a link farm strategy, likely intended to obfuscate the final malicious destination.

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/wix?keyword=priest+in+peril+osrs+quest+guide
    • https://static.usrfiles.com/ugd/b8c837_a8f2906ae8a04caa8d393c15974df4cc.pdf
    • https://static.usrfiles.com/ugd/3f80ec_dd1af3bd92bc4ca69baa877c13c85fd9.pdf
    • https://static.usrfiles.com/ugd/b8c837_d6247f754daa4a7dbd816da461b6224e.pdf
    • https://static.usrfiles.com/ugd/105a8c_ab1f2d57f50347d58b891653a08bb424.pdf
    • https://static.usrfiles.com/ugd/b8c837_89144cee0e56416bb73b154dfc3b7f77.pdf
    • https://static.usrfiles.com/ugd/3649d2_4a83879eef3541a1b76dc7b21e26f535.pdf
    • https://static.usrfiles.com/ugd/b8c837_eef65faab57c451da30947b4172d077f.pdf
    • https://static.usrfiles.com/ugd/b8c837_e3c088c13cb04a428c58dfef8b604f5f.pdf
    • https://static.usrfiles.com/ugd/8e1900_28a81260012f4d4bb1c9d61107c49e00.pdf
    • https://static.usrfiles.com/ugd/136d07_75107d51b3f24bb8891c68930244b44f.pdf
    • https://static.usrfiles.com/ugd/f46427_48d078a534894dffa677436fb446a9e5.pdf
    • https://static.usrfiles.com/ugd/3b7182_809258cf82e646df8c6a98be8e929395.pdf
    • https://static.usrfiles.com/ugd/d43733_2790ee68f7684210b33a6f6f56427bf8.pdf
    • https://static.usrfiles.com/ugd/cbdbb6_216fd2f389194df1af09d7a8f5c15891.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_off00006783.bin
0de87951cad3c3f152747a263f65057a17cd419d22bdd9a16d9839427170a2c0		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6783 5044 bytes
font_01_sfnt_off000078ad.bin
65126e5013393d8ba42dc4bbd6b1e5ddcd18591fdd5839b07bf811828c3b0ed2		 pdf-font-stream PDF embedded font (sfnt) at offset 0x78AD 10324 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.