Malicious PDF — malware analysis report

Static analysis result for SHA-256 e9d49c2ccaaef16f…

MALICIOUS

PDF

46.1 KB Created: 2020-09-09 17:18:52 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 464724cca9f31da6d73c19dc5ef10014 SHA-1: 5f2f23d3d430391f404b96bfefb682a8a840d6c7 SHA-256: e9d49c2ccaaef16f78ba40e1cc90e69f003b1841be041f390014ba1b1a6efdd8
120 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded links, many of which point to domains that appear to be part of a link farm. One critical heuristic identified a link to a known malicious redirector, ttraff.me, which is used to obscure the final destination. The document body, though partially corrupted, contains text related to a game manual search query, suggesting a lure to trick users into clicking the malicious links.

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/wix?keyword=nightmare+creatures+n64+manual
    • http://files.greatalaskanshirtco.com/uploads/1/3/0/9/130969408/317685.pdf
    • http://files.lifesrenderingsart.com/uploads/1/3/0/7/130775249/vasosu.pdf
    • http://files.rentedfashion.com/uploads/1/3/0/7/130776015/7992082.pdf
    • http://files.angelsofcharity.org/uploads/1/3/1/4/131406412/vobeteletenuvot.pdf
    • http://minoxeni.jrwoodbat.com/uploads/1/3/2/7/132712336/bagubidif_temidoze_xogino_gorovedijaj.pdf
    • https://static.usrfiles.com/ugd/575363_55a6fa151342407c84d208bbbc17a9fb.pdf
    • https://static.usrfiles.com/ugd/b463f2_8aff99aead404df194960f395b31abd1.pdf
    • https://static.usrfiles.com/ugd/3cb679_20a935d41a5e42db9a195a12d3109434.pdf
    • https://static.usrfiles.com/ugd/ce0e6d_5c843782bfd245c8b2d2e408b22976d9.pdf
    • https://static.usrfiles.com/ugd/3225da_b37700a8c76f464493fd250419f928d8.pdf
    • https://cdn.shopify.com/s/files/1/0432/2492/4319/files/37552572612.pdf
    • https://cdn.shopify.com/s/files/1/0433/1778/8830/files/short_reading_comprehension_passages_with_answers.pdf
    • https://cdn.shopify.com/s/files/1/0434/3247/6838/files/fobulazorarujob.pdf
    • https://cdn.shopify.com/s/files/1/0430/0649/2823/files/79552615388.pdf
    • https://static.usrfiles.com/ugd/88a84f_24e5f9d4a350431b8c36d4b681c0bd11.pdf
    • https://static.usrfiles.com/ugd/fd30ac_5d1ae28df6a946e294cb0cc11b8ac5bd.pdf
    • https://static.usrfiles.com/ugd/12f4eb_68f00c5e14f34c10bf13ad6bac67f097.pdf
    • https://static.usrfiles.com/ugd/3ed902_aef7f78f30a7412bb87637535bc3a36a.pdf
    • https://static.usrfiles.com/ugd/b8c837_7da82f6427a9455cb57451b4981f93d3.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_off0000761a.bin
a7139d2d6a14c4d1650a29d173b63bc9114d7a23f353e8e2cdea43fc65361076
pdf-font-stream PDF embedded font (sfnt) at offset 0x761A 5424 bytes
font_01_sfnt_off0000886c.bin
4d4bb0eeea698fd7d8212b4673d176370b9dbf999877c42f46202f3d6f3a13f4
pdf-font-stream PDF embedded font (sfnt) at offset 0x886C 10120 bytes