Malicious PDF — malware analysis report

Static analysis result for SHA-256 2f069d814b5c419d…

MALICIOUS

PDF

45.7 KB Created: 2020-09-02 09:59:56 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 906d16fc201c567f7659bd612eada5da SHA-1: ee98aad64e542ec9068df3e323db00d7b416544b SHA-256: 2f069d814b5c419db8bdedba4f155e697c40ba0a905ea032fd7a5cfbac7f828e
120 Risk Score

Malware Insights

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

The PDF contains a heuristic firing for a malicious redirector link, pointing to 'https://ttraff.ru/pify?keyword=a+thousand+years+violin+sheet+music+easy'. It also exhibits characteristics of a PDF link farm, with numerous external links, many hosted on cdn.shopify.com. The document body, though heavily obfuscated, contains text related to sheet music and the malicious URL, suggesting a lure to a phishing or malware distribution site.

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.ru/pify?keyword=a+thousand+years+violin+sheet+music+easy
    • https://cdn.shopify.com/s/files/1/0428/9599/9129/files/rexavisage.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/kemisavixazesunomezixe.pdf
    • https://cdn.shopify.com/s/files/1/0438/0069/0848/files/aramaic_english_new_testament_download.pdf
    • https://cdn.shopify.com/s/files/1/0440/7682/6789/files/zojibib.pdf
    • https://cdn.shopify.com/s/files/1/0435/9087/7339/files/805395654.pdf
    • https://cdn.shopify.com/s/files/1/0438/4643/4976/files/75244197860.pdf
    • https://cdn.shopify.com/s/files/1/0432/0939/2285/files/58332044383.pdf
    • https://cdn.shopify.com/s/files/1/0430/5027/0869/files/38718179872.pdf
    • https://static.usrfiles.com/ugd/3b47cb_599de332ae9c45ba824846a114d95ac6.pdf
    • https://static.usrfiles.com/ugd/97634b_39aa940a858044c8b0fdd303183ad6fb.pdf
    • https://static.usrfiles.com/ugd/b8c837_b01fc56c381f4779bf5c7aad3101d6d4.pdf
    • https://static.usrfiles.com/ugd/b8c837_06c60d10695c4a1c94a602ac0d4463c4.pdf
    • https://cdn.shopify.com/s/files/1/0462/6006/0314/files/degoje.pdf
    • https://cdn.shopify.com/s/files/1/0428/4982/9023/files/52403844893.pdf
    • https://cdn.shopify.com/s/files/1/0438/6072/1829/files/66492243956.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_off000067eb.bin
4425729e8327587dad7b254f2ba472efe68da3eeca0030ac46289affc6c377f4		 pdf-font-stream PDF embedded font (sfnt) at offset 0x67EB 5212 bytes
font_01_sfnt_off00007972.bin
f0fd92dd7c57f2563da8e9d1f2e5453cfc32671efeb139810d7f13b66a488daa		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7972 9820 bytes
font_02_sfnt_off00009b0f.bin
1062cd8ddf90f4344fa193b395386d5669df1a952e5759311ca261a71931f361		 pdf-font-stream PDF embedded font (sfnt) at offset 0x9B0F 4324 bytes

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