Malicious PDF — malware analysis report

Static analysis result for SHA-256 e916219522a5d5b5…

MALICIOUS

PDF

33.1 KB Created: 2020-08-05 01:38:31 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: b00c9e83939867e6c396590cfb7fba31 SHA-1: a170592e9ed84b287308a186212f6656add85ace SHA-256: e916219522a5d5b51389f6f4d63ff196c96a8cab1a672b49171a0f61df86e429
150 Risk Score

Malware Insights

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

The PDF contains numerous embedded links, with a critical heuristic firing for a malicious redirector. The document body and embedded links suggest a lure related to an 'avon catalog', which is a common tactic for phishing or malware delivery. The primary malicious URL identified is ttraff.ru, which redirects to a page related to 'catalogo avon pdf 17'.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

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=catalogo+avon+pdf+17
    • http://files.greshamvisuals.com/uploads/1/3/0/7/130774990/misizepaputez.pdf
    • http://files.sietinternational.com/uploads/1/3/1/0/131069789/5e7f39f98507d4b.pdf
    • http://files.nakedcakesgallery.com.au/uploads/1/3/0/7/130740012/vudeze.pdf
    • http://files.webchristchurch.com/uploads/1/3/0/7/130776327/xoxuvuwutosopuruni.pdf
    • https://cdn.shopify.com/s/files/1/0432/7538/7043/files/dozalinenodugezokogu.pdf
    • https://cdn.shopify.com/s/files/1/0430/8110/5562/files/tewilekulodobeforolutekux.pdf
    • https://cdn.shopify.com/s/files/1/0436/8711/6953/files/jumagumod.pdf
    • https://cdn.shopify.com/s/files/1/0433/6225/5006/files/bisura.pdf
    • https://cdn.shopify.com/s/files/1/0433/7896/6686/files/ayushman_bharat_yojana_list_2020_download.pdf
    • https://cdn.shopify.com/s/files/1/0435/4015/2475/files/50148259195.pdf
    • https://cdn.shopify.com/s/files/1/0433/3531/9711/files/mofigiwomuxoz.pdf
    • https://cdn.shopify.com/s/files/1/0429/4456/1318/files/83643005884.pdf
    • https://cdn.shopify.com/s/files/1/0434/1478/2104/files/36315757842.pdf
    • https://cdn.shopify.com/s/files/1/0432/1142/3902/files/lowes_pittsburgh_mills.pdf
    • https://cdn.shopify.com/s/files/1/0429/1395/6007/files/xadoviguxogoxedibemodi.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/xizujebekox.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_off0000445c.bin
06423dbef2baeeb20414baaa4381ef073d65fbaeca6c6998f5210d02c1aba7bd		 pdf-font-stream PDF embedded font (sfnt) at offset 0x445C 5032 bytes
font_01_sfnt_off000055a8.bin
5bbd1d8ff99d0ecfda31c129e275d72fd1137ec56c867a05b069240c52fdd07d		 pdf-font-stream PDF embedded font (sfnt) at offset 0x55A8 10128 bytes

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