Malicious PDF — malware analysis report

Static analysis result for SHA-256 4d36a68909076bbb…

MALICIOUS

PDF

32.2 KB Created: 2020-08-16 21:21:53 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 7804ba5b08365c9190e5f6d8bd62f834 SHA-1: 10d344649282efcc382d4db91f93ede07639b41b SHA-256: 4d36a68909076bbbcec261b03a5e03538abe5c535214b714e46b2007f9fcd9d7
128 Risk Score

Malware Insights

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

The PDF file contains a malicious redirector link disguised as a download button. The link directs to 'https://ttraff.com/pify?keyword=videohive+music+free', which is a known malicious redirector. The document also contains a large number of external PDF links, many hosted on Shopify, likely for SEO manipulation or to obscure the malicious redirector.

Heuristics 4

  • 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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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=videohive+music+free
    • http://files.noshushingallowed.com/uploads/1/3/1/4/131437516/tujufumubegelar_fixeki_rorofula.pdf
    • http://files.stephanierodemann.com/uploads/1/3/0/8/130874050/nenefuki-vatonuxonoruna.pdf
    • http://files.wcpreschoolva.com/uploads/1/3/1/0/131070351/dutaxobizidifi.pdf
    • https://cdn.shopify.com/s/files/1/0430/8090/8949/files/fapokupuwonaxipifabuzikep.pdf
    • https://cdn.shopify.com/s/files/1/0430/6763/7922/files/zovowigibakekiwawo.pdf
    • https://cdn.shopify.com/s/files/1/0433/8896/0933/files/nowixixivatiriditowolub.pdf
    • https://cdn.shopify.com/s/files/1/0431/0971/2021/files/wuxowekox.pdf
    • https://cdn.shopify.com/s/files/1/0431/3356/7125/files/auriculoterapia_efectos_secundarios.pdf
    • https://cdn.shopify.com/s/files/1/0431/6902/2109/files/hitler_s_rise_to_power_timeline_worksheet.pdf
    • https://cdn.shopify.com/s/files/1/0437/8053/8529/files/investments_bodie.pdf
    • https://cdn.shopify.com/s/files/1/0437/5409/4753/files/application_of_laser_in_medicine.pdf
    • https://cdn.shopify.com/s/files/1/0445/5186/4484/files/how_to_open_steam_console.pdf
    • https://cdn.shopify.com/s/files/1/0431/2901/2381/files/bozuxufuvupimonaxo.pdf
    • https://cdn.shopify.com/s/files/1/0438/8664/1304/files/xufusexowupojosezajefoj.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_off0000421f.bin
f08893e68d704f05168af42bca11a67068bb079af13e381f2113599ef9f81eaf		 pdf-font-stream PDF embedded font (sfnt) at offset 0x421F 5044 bytes
font_01_sfnt_off0000532d.bin
dbcd00884f9b29086a8e9dd896dfb030a26f0e07b0428ceda7894797b741b16d		 pdf-font-stream PDF embedded font (sfnt) at offset 0x532D 9664 bytes

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