Malicious PDF — malware analysis report

Static analysis result for SHA-256 acd50cb47669ee26…

MALICIOUS

PDF

37.5 KB Created: 2020-09-16 01:03:29 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 9470fbf0c56c8b2bf64ac5b5c427eae7 SHA-1: ab8e4681f845684a4b2827014e884e18e246e242 SHA-256: acd50cb47669ee266767d79fccfcb41b5a4b9fce670589cc7518c534035986bc
120 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded links, many of which point to a redirector service. The primary malicious URL identified is https://ttraff.me/pify?keyword=south+street+school. This indicates a link farm attack pattern designed to lead users to malicious content. No scripts were extracted, and the document body was heavily obfuscated, limiting further analysis of the exact lure.

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.me/pify?keyword=south+street+school
    • http://voxim.melaninandmotherhoodnj.org/uploads/1/3/0/8/130874284/xusineb.pdf
    • http://donax.krishnaandnatansh.com/uploads/1/3/0/7/130775971/geninixerexugeji.pdf
    • http://giwek.t-bart.org/uploads/1/3/1/3/131380065/5fd1631c1.pdf
    • http://dilolowi.thepaintbarpaintings.com/uploads/1/3/2/7/132712253/2540538.pdf
    • http://files.robplath.com/uploads/1/3/1/4/131483097/tomefidatifon_sulavex.pdf
    • http://files.drmorgannd.com/uploads/1/3/2/7/132741352/nolijegedipegeb-nusemufinipavap-nepusof-tikoxap.pdf
    • https://static.usrfiles.com/ugd/78c764_441ea25cf89f4b049846b7aac1503327.pdf
    • https://static.usrfiles.com/ugd/111c46_2b331bb7557140158789b6cea5f0451c.pdf
    • https://static.usrfiles.com/ugd/b8c837_067fd5a819054fd1a5076994dc77ec65.pdf
    • https://static.usrfiles.com/ugd/9d7ad9_bfb158ed5c194bccb1dafb7b4869d67f.pdf
    • https://static.usrfiles.com/ugd/55cc32_53adb04f1d1841df978174109dd86a0c.pdf
    • https://cdn.shopify.com/s/files/1/0439/8045/6094/files/star_plus_drama_song.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/liwisubusamepumiv.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_off00004989.bin
389c245fdf88d962cbf86f3fcc13190b353571cdd8e56aea8d0f5f84db0aefec		 pdf-font-stream PDF embedded font (sfnt) at offset 0x4989 4508 bytes
font_01_sfnt_off000058ef.bin
d86ec0bc770e441c5592e1767eefb931d68f4348cee08fcfab278aaceda53462		 pdf-font-stream PDF embedded font (sfnt) at offset 0x58EF 10076 bytes
font_02_sfnt_off00007b76.bin
4fcfa7c68d76e23b667942a3ac892d2d5d88346478daafc61479ad4df4af3dd3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7B76 4324 bytes

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