Malicious PDF — malware analysis report

Static analysis result for SHA-256 9057cd1b30fccac9…

MALICIOUS

PDF

44.4 KB Created: 2020-08-25 09:52:44 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 6fdefb8cdd4b28289d0717e5205988ae SHA-1: 855a93be8a89cdd5fffa076f87e721a1d614e19e SHA-256: 9057cd1b30fccac9e83f30551d4689c1b4b5509cfd16e01666ccc41fc46aa728
120 Risk Score

Malware Insights

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

The PDF file contains a heuristic firing for a malicious redirector link, specifically pointing to 'https://ttraff.com/pify?keyword=alucard+mobile+legends+guide'. The document body, though heavily obfuscated, contains references to this URL and appears to be a lure related to a mobile game. The presence of numerous other PDF links, many hosted on Shopify, suggests a link farm or redirection strategy. No scripts were extracted from this sample.

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.com/pify?keyword=alucard+mobile+legends+guide
    • http://voxom.judithrpetersonphotography.com/uploads/1/3/0/9/130969764/melome.pdf
    • http://files.thechannelislandgirl.com/uploads/1/3/0/8/130814258/5451647.pdf
    • http://files.spmsmusicboosters.net/uploads/1/3/1/4/131406372/xipilok.pdf
    • http://files.cbcdanville.com/uploads/1/3/2/6/132695719/3461ed19203a.pdf
    • https://cdn.shopify.com/s/files/1/0435/6633/4111/files/82799537829.pdf
    • https://cdn.shopify.com/s/files/1/0435/8812/4830/files/lalage.pdf
    • https://cdn.shopify.com/s/files/1/0433/9941/3925/files/nesivasa.pdf
    • https://cdn.shopify.com/s/files/1/0432/7519/0422/files/241694230.pdf
    • https://cdn.shopify.com/s/files/1/0433/8427/5100/files/catalogo_avon_campagna_18_2020.pdf
    • https://cdn.shopify.com/s/files/1/0430/0419/9075/files/nilal.pdf
    • https://cdn.shopify.com/s/files/1/0432/1532/3291/files/94138158034.pdf
    • https://cdn.shopify.com/s/files/1/0429/2093/5590/files/xalidelefabububirowefifal.pdf
    • https://cdn.shopify.com/s/files/1/0435/9657/8975/files/my_god_is_awesome_lyrics_and_chords.pdf
    • https://cdn.shopify.com/s/files/1/0430/5915/1009/files/tv_commercial_scripts.pdf
    • https://cdn.shopify.com/s/files/1/0462/7660/8160/files/catecismo_romano_em_portugus.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_off00006fda.bin
c5a7c995fe8d10f4973145a9382e68181ecedaf57488bf8c0fb341ae1d4e9695		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6FDA 5388 bytes
font_01_sfnt_off00008205.bin
4977146a5b7d6e130163eb3e6f34976e2f3be4cbf310bac1e0a767e98261a08f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8205 10176 bytes

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