Malicious PDF — malware analysis report

Static analysis result for SHA-256 b5dd2e6cbe956a66…

MALICIOUS

PDF

64.5 KB Created: 2020-08-20 01:33:35 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 7e1541be09dd4f453715be533bbe3ec6 SHA-1: 5f4289e03985aeb1c9caa09b769978b4ea551921 SHA-256: b5dd2e6cbe956a666184eaadfb536780feb4845cd0ce2f31ce825560aca9df7b
120 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell T1204.002 Malicious Link

The PDF file contains a heuristic firing for PDF_MALICIOUS_REDIRECTOR_LINK, pointing to 'https://ttraff.com/pify?keyword=bhagam+bhag+video+song+free'. This URL is associated with a malicious redirector. The document body, though heavily obfuscated, contains text related to 'Bhagam bhag video song free', suggesting a lure. The PDF also exhibits characteristics of a link farm, with numerous embedded URLs, many pointing to Shopify domains, but one specifically to a potentially malicious domain. The primary intent appears to be redirecting the user to the malicious ttraff.com domain.

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=bhagam+bhag+video+song+free
    • http://dakegomo.victoriabetta.com/uploads/1/3/1/4/131453060/kexuwufi.pdf
    • https://cdn.shopify.com/s/files/1/0437/8987/7408/files/32491202916.pdf
    • https://cdn.shopify.com/s/files/1/0434/8447/9641/files/12633391411.pdf
    • https://cdn.shopify.com/s/files/1/0430/9889/8592/files/potential_form_kaimasu.pdf
    • https://cdn.shopify.com/s/files/1/0431/3504/1702/files/daponinimeluzewisoz.pdf
    • https://cdn.shopify.com/s/files/1/0439/1724/6632/files/punekadifidamaz.pdf
    • https://cdn.shopify.com/s/files/1/0430/8071/2343/files/56829164990.pdf
    • https://cdn.shopify.com/s/files/1/0437/7152/7325/files/osrs_the_fued.pdf
    • https://cdn.shopify.com/s/files/1/0430/1222/7225/files/66109275964.pdf
    • https://cdn.shopify.com/s/files/1/0431/9513/8208/files/75404245148.pdf
    • https://cdn.shopify.com/s/files/1/0428/5582/5567/files/91264798992.pdf
    • https://cdn.shopify.com/s/files/1/0430/8012/2532/files/kisusigubababufoxexor.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_off0000a03c.bin
ad5bb4353c0c623d33abd8f6ef73dd28ebf35fd9b977c7327e531dc526e119ed		 pdf-font-stream PDF embedded font (sfnt) at offset 0xA03C 5540 bytes
font_01_sfnt_off0000b2fa.bin
026cc0622597d58103812165e0d5641666ebdf58fe904336aaf1fff336157734		 pdf-font-stream PDF embedded font (sfnt) at offset 0xB2FA 14140 bytes
font_02_sfnt_off0000e007.bin
541fa2b6826b0add99b7d5a173ef1e6a5567607b5192f75b810eb17d6a563501		 pdf-font-stream PDF embedded font (sfnt) at offset 0xE007 16204 bytes

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