Malicious PDF — malware analysis report

Static analysis result for SHA-256 96c001532a64cef1…

MALICIOUS

PDF

38.5 KB Created: 2020-08-17 07:31:26 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 4960744c1626481e32263d1cd7e73bd6 SHA-1: 6443ad5d8bf596681a9f12a77c0194ccd960ea4f SHA-256: 96c001532a64cef14cdc214bab3da4d546a6cdff973d55d4c74f939453d7668c
120 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded links, many of which point to external resources, indicating a link farm. One of the primary links, 'https://ttraff.ru/pify?keyword=carry+me+away+john+mayer', is flagged as a malicious redirector. The document body contains garbled text but also includes the same malicious URL, suggesting an attempt to lure the user to a potentially harmful site. No scripts were extracted, but the PDF structure and link farm are strong indicators of malicious intent.

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=carry+me+away+john+mayer
    • http://depaluse.zestcleanfloors.com/uploads/1/3/1/1/131164250/80d7af.pdf
    • http://files.egaugesplus.com/uploads/1/3/1/3/131379803/dezokudadesarew.pdf
    • http://files.wcoastbeads.com/uploads/1/3/1/4/131406780/a086c65f5c34.pdf
    • http://files.crosshairequipment.com/uploads/1/3/1/8/131872178/25068.pdf
    • https://cdn.shopify.com/s/files/1/0430/0118/4417/files/21052195886.pdf
    • https://cdn.shopify.com/s/files/1/0439/7786/7422/files/buxebemunelasaxi.pdf
    • https://cdn.shopify.com/s/files/1/0432/0306/8068/files/toyota_supply_chain_management_case_study.pdf
    • https://cdn.shopify.com/s/files/1/0440/4248/5910/files/450163941.pdf
    • https://cdn.shopify.com/s/files/1/0440/1332/2398/files/wiczenia_angielski_dla_dzieci.pdf
    • https://cdn.shopify.com/s/files/1/0440/1784/4382/files/beethoven_concerto_4.pdf
    • https://cdn.shopify.com/s/files/1/0432/2571/0756/files/24371194559.pdf
    • https://cdn.shopify.com/s/files/1/0437/6081/2190/files/convert_qfx_to_csv.pdf
    • https://cdn.shopify.com/s/files/1/0434/3041/2454/files/chemistry_class_12_p_block_notes.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_off00004c44.bin
f7f0d62686a1a57e0727498154b1c0975b35027d10541047c6a4c5a3369cc8d7		 pdf-font-stream PDF embedded font (sfnt) at offset 0x4C44 4668 bytes
font_01_sfnt_off00005c0b.bin
8e52af88d09a5e747b6491d69fb876339a631d793fc135d3b69f67176cc67dca		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5C0B 10680 bytes
font_02_sfnt_off00007f8b.bin
9f355172d696dda274cac500966718f112ce76951f19577ac4888987ea6471b2		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7F8B 4324 bytes

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