Malicious PDF — malware analysis report

Static analysis result for SHA-256 aff828f9feea2651…

MALICIOUS

PDF

77.6 KB Created: 2020-09-01 05:25:34 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 6c53217e284ba89505e39e340c95e3bf SHA-1: 01f24572328067be2eb737bf727b2b8553b0eb90 SHA-256: aff828f9feea2651d60b01ee2439e937bf700d37b8b6cff4ca9967beec8a4f6e
120 Risk Score

Malware Insights

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

The PDF file contains a link that redirects to known malicious infrastructure, indicated by the 'PDF_MALICIOUS_REDIRECTOR_LINK' heuristic. Additionally, the 'PDF_SEO_LINK_FARM' heuristic suggests the document is part of a larger scheme to generate traffic. The embedded URL 'https://ttraff.link/pify?keyword=change+management+strategy+plan+template' is the primary indicator of malicious intent, likely serving as a lure for further malicious activity.

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.link/pify?keyword=change+management+strategy+plan+template
    • https://static.usrfiles.com/ugd/fac845_0f0fcc0bd6f54520a2dbcfb60f6303a4.pdf
    • https://static.usrfiles.com/ugd/b8c837_d4aa6b52ad8c4f63ba4bd253b9a4b068.pdf
    • https://static.usrfiles.com/ugd/69b86f_6264aee4b7684323ae211a2335fdb42f.pdf
    • https://static.usrfiles.com/ugd/b8c837_a86635701fa34590ba514f93cc587eb2.pdf
    • https://static.usrfiles.com/ugd/b8c837_425f876c42304fc58deadb6123b02bf4.pdf
    • https://static.usrfiles.com/ugd/b8c837_39b38634a70b48c19a1df0cd97bb2e68.pdf
    • https://static.usrfiles.com/ugd/78c764_105fabce378c453096d3d22b2fbf619d.pdf
    • https://static.usrfiles.com/ugd/3aca14_90fabbea9b7e4026a049abaea23c21db.pdf
    • https://static.usrfiles.com/ugd/097bd5_d5c3e5fd4e834faa96127508896e34a4.pdf
    • https://static.usrfiles.com/ugd/ab922d_1e9d98f4529b4f11a21a28caa777b3d6.pdf
    • https://static.usrfiles.com/ugd/b8c837_afdb3d355c084b6fbd9f6a0f8fc19043.pdf
    • https://static.usrfiles.com/ugd/50de67_1c8b9938696942d29051e8e9a95718cd.pdf
    • https://static.usrfiles.com/ugd/b8c837_3ef64ecb730745fa80d6796dcadb740c.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_off0000eb85.bin
9844ca142524e59e92bb2b3abdc22af5bf11a5e9d387fd64c15aad2ff9de9a3c		 pdf-font-stream PDF embedded font (sfnt) at offset 0xEB85 5240 bytes
font_01_sfnt_off0000fd2f.bin
207799edac54eb87b5900e09cd16d6c30e28c41d6671f529951cf4866f383825		 pdf-font-stream PDF embedded font (sfnt) at offset 0xFD2F 14112 bytes

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