Malicious PDF — malware analysis report

Static analysis result for SHA-256 cfe2f46c91e55187…

MALICIOUS

PDF

40.6 KB Created: 2020-08-23 05:10:58 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 48b3048dd31371cbb5d14c4ba028bae7 SHA-1: af26b590e40aa8014a3165bca72059768394150f SHA-256: cfe2f46c91e551877a7b12a5a01941d737bb1682fdab5d53dd423396136d7451
120 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link pointing to 'ttraff.com'. Additionally, it exhibits a PDF link farm heuristic, with numerous links pointing to Shopify domains, likely to obscure the malicious redirector. The document body, though heavily obfuscated, contains the malicious URL, suggesting an attempt to disguise its true nature. No scripts were extracted, but the presence of a malicious redirector indicates a likely phishing or malware delivery attempt.

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=home+button+onclicklistener+android
    • http://files.ecardsvs.com/uploads/1/3/1/3/131384777/32412e1.pdf
    • http://files.badassoffitness.com/uploads/1/3/2/8/132815183/vofek.pdf
    • https://cdn.shopify.com/s/files/1/0431/3281/3473/files/trading_company_logo_templates_free.pdf
    • https://cdn.shopify.com/s/files/1/0430/8028/6372/files/87406398940.pdf
    • https://cdn.shopify.com/s/files/1/0432/5530/0249/files/66075448246.pdf
    • https://cdn.shopify.com/s/files/1/0429/7729/6543/files/9631940960.pdf
    • https://cdn.shopify.com/s/files/1/0436/0133/0339/files/job_interview_questions_answers_download.pdf
    • https://cdn.shopify.com/s/files/1/0439/8402/7806/files/kaputapadupojafiz.pdf
    • https://cdn.shopify.com/s/files/1/0430/8716/7637/files/nazazuzovalowamakolebutov.pdf
    • https://cdn.shopify.com/s/files/1/0463/3523/0114/files/infamous_machine_chapter_2_guide.pdf
    • https://cdn.shopify.com/s/files/1/0436/0595/0626/files/gokapefimawaxove.pdf
    • https://cdn.shopify.com/s/files/1/0431/5978/1538/files/8888936047.pdf
    • https://cdn.shopify.com/s/files/1/0437/7670/4673/files/real_chess_app_apk.pdf
    • https://cdn.shopify.com/s/files/1/0436/4802/4741/files/wulogisinobumeriw.pdf
    • https://cdn.shopify.com/s/files/1/0434/3375/4773/files/la_jolla_zip_code.pdf
    • https://cdn.shopify.com/s/files/1/0443/5014/4668/files/wizogu.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_off000061bc.bin
81c3a9a8622cf2797ce55d64e6f01d7db8193d9fa18767ec13bd6b07579f877b		 pdf-font-stream PDF embedded font (sfnt) at offset 0x61BC 5248 bytes
font_01_sfnt_off00007373.bin
5658b3ca5ab142c18feee314474a4daaa12b98516780f2358a7f48d1e7dae65a		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7373 9980 bytes

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