Malicious PDF — malware analysis report

Static analysis result for SHA-256 562591a1343b37b5…

MALICIOUS

PDF

34.7 KB Created: 2020-09-09 02:00:00 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 9166cdcd1b41fc51fd773fc50b8fb0f4 SHA-1: 2e4020ee5f76f9b8a18e4c30e3462975e80a2890 SHA-256: 562591a1343b37b5bc63709dbfcb4f7cfa2b352079ef360778c06f1c7531fbef
120 Risk Score

Malware Insights

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

This PDF file contains numerous embedded links, masquerading as benign documents hosted on Shopify. One of these links, however, points to a known malicious redirector at 'ttraff.club'. The document body, though heavily obfuscated, contains the same malicious URL, suggesting a lure to a malicious site. No scripts were extracted, and the primary malicious activity appears to be the redirection to a potentially harmful external resource.

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.club/pify?keyword=cherubim+and+seraphim+yoruba+hymns
    • https://cdn.shopify.com/s/files/1/0438/4771/2928/files/75021614052.pdf
    • https://cdn.shopify.com/s/files/1/0437/6153/3082/files/double_displacement_reaction.pdf
    • https://cdn.shopify.com/s/files/1/0434/3051/0742/files/rog_aura_service.pdf
    • https://cdn.shopify.com/s/files/1/0427/8360/4903/files/19868348078.pdf
    • https://cdn.shopify.com/s/files/1/0430/6780/1749/files/37654892725.pdf
    • https://cdn.shopify.com/s/files/1/0447/0875/7660/files/al_quran_with_bangla_translation_full_30_para.pdf
    • https://cdn.shopify.com/s/files/1/0454/5295/1704/files/business_accounting_and_finance_for_non_specialists.pdf
    • https://cdn.shopify.com/s/files/1/0431/8684/7905/files/xupatubeleduxugote.pdf
    • https://cdn.shopify.com/s/files/1/0429/0691/0887/files/zixexereb.pdf
    • https://cdn.shopify.com/s/files/1/0435/1551/0952/files/christmas_carols_sheet_music_violin.pdf
    • https://cdn.shopify.com/s/files/1/0434/1301/2637/files/govaperisedimoditeti.pdf
    • https://cdn.shopify.com/s/files/1/0428/9078/9020/files/ankle_dorsiflexion_manual_muscle_testing.pdf
    • https://static.usrfiles.com/ugd/2ca09c_109a89f852c741999b6249b135176b14.pdf
    • https://static.usrfiles.com/ugd/4bb894_e14128acd27446a1bf1d89d6b5cc0bd2.pdf
    • https://static.usrfiles.com/ugd/b8c837_daf709f4c772486cbde61e62e75b0001.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_off00004a74.bin
1a6df9efe3b5302f25bae5e02278ce08dc0ce4f3bf195eb29f1898105fd6217c		 pdf-font-stream PDF embedded font (sfnt) at offset 0x4A74 5316 bytes
font_01_sfnt_off00005c4f.bin
d51f0e02f86e6656877be4834e528ef4481e70bc91568751975e98aa7af90df1		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5C4F 9876 bytes

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