Malicious PDF — malware analysis report

Static analysis result for SHA-256 f2e9ff887429561c…

MALICIOUS

PDF

47.5 KB Created: 2020-08-07 09:48:55 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 87ab51f1bae00e600abafb7b974824fa SHA-1: 6ffaece68083082b23619540e671ec67c30a5d4a SHA-256: f2e9ff887429561ca4f48912d9b66eae6fd68d1b000cc7762fe2e7b74921257e
120 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded links, with one specifically pointing to a known malicious redirector. This suggests a phishing or SEO spam campaign. The document body contains garbled text and embedded URLs, further supporting the malicious intent. The primary malicious URL identified is https://ttraff.ru/pify?keyword=apc+smart+ups+c+3000va+lcd+230v+pdf.

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=apc+smart+ups+c+3000va+lcd+230v+pdf
    • http://files.dentonmccabe.com/uploads/1/3/2/8/132815002/pogadesuvalapaj_jowotesifeb.pdf
    • http://files.saratogadiwali.org/uploads/1/3/0/7/130776204/5812396.pdf
    • http://files.freshvision.org/uploads/1/3/1/3/131378942/116310.pdf
    • https://cdn.shopify.com/s/files/1/0452/7154/8066/files/easy_english_story_books_for_beginners.pdf
    • https://cdn.shopify.com/s/files/1/0430/5253/1869/files/98557562912.pdf
    • https://cdn.shopify.com/s/files/1/0428/3881/8982/files/zenizebokuvunesamudotixu.pdf
    • https://cdn.shopify.com/s/files/1/0434/5148/2278/files/lagilifidigopunu.pdf
    • https://cdn.shopify.com/s/files/1/0432/4183/2615/files/62507700488.pdf
    • https://cdn.shopify.com/s/files/1/0434/1995/9463/files/56874275773.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/59022585862.pdf
    • https://cdn.shopify.com/s/files/1/0433/8145/7061/files/wuwuritesebijezifilozos.pdf
    • https://cdn.shopify.com/s/files/1/0440/7951/3752/files/bugozozijuv.pdf
    • https://cdn.shopify.com/s/files/1/0436/6453/9798/files/18164642421.pdf
    • https://cdn.shopify.com/s/files/1/0430/4021/1105/files/17522385531.pdf
    • https://cdn.shopify.com/s/files/1/0438/0036/3169/files/nijedi.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_off00007877.bin
cccd713130788fab8ab3c52827cbd5895d6be918cf7d0aa06f88781817563857		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7877 5788 bytes
font_01_sfnt_off00008c1d.bin
04d9c6c29ee45e6bb373b2de3858322e22708f1d0b92291215f364d2390aa4df		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8C1D 11132 bytes

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