Malicious PDF — malware analysis report

Static analysis result for SHA-256 8e52a615bede0675…

MALICIOUS

PDF

48.9 KB Created: 2020-08-21 03:56:23 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 52f639c8290b15af92e915d117e5a22b SHA-1: 6488cdd1002df5a31cf2b67c460b8cedeb781320 SHA-256: 8e52a615bede06756d358530ef6bb1c3668836d9b8179d564e8f0c354a1ae94f
120 Risk Score

Malware Insights

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

The PDF file contains a significant number of embedded links, identified as a PDF link farm. One of these links, 'https://ttraff.ru/pify?keyword=flask+jinja+template', is flagged as a malicious redirector. The document body, though heavily obfuscated, also contains this URL, suggesting the primary purpose is to lure users to malicious infrastructure. The presence of numerous shopify.com links, some flagged as benign, may be an attempt to camouflage the malicious redirector.

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=flask+jinja+template
    • http://dumijota.eatatluscious.com/uploads/1/3/2/7/132740649/db27e3568072.pdf
    • http://files.polesworthpoetrytrail.org/uploads/1/3/0/7/130775001/8c937.pdf
    • http://zefeli.maggiemcmuffin.com/uploads/1/3/1/8/131856005/2809710.pdf
    • https://cdn.shopify.com/s/files/1/0434/6914/4230/files/40573575561.pdf
    • https://cdn.shopify.com/s/files/1/0430/5806/9655/files/31469949246.pdf
    • https://cdn.shopify.com/s/files/1/0433/6097/7048/files/biology_keystone_review_packet_answer_key.pdf
    • https://cdn.shopify.com/s/files/1/0431/7223/3376/files/wadez.pdf
    • https://cdn.shopify.com/s/files/1/0436/5549/5833/files/42368705362.pdf
    • https://cdn.shopify.com/s/files/1/0428/1604/5222/files/72616175096.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/54729765263.pdf
    • https://cdn.shopify.com/s/files/1/0431/9605/5711/files/gossip_girl_cecily_von_ziegesar_espaol.pdf
    • https://cdn.shopify.com/s/files/1/0434/3355/8182/files/wovasizegamok.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/gamusuzojikifikukudubug.pdf
    • https://cdn.shopify.com/s/files/1/0434/0963/7533/files/tonidofakisox.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_off000073a8.bin
fd47ef327a5bf04e58b5a9c6b6f137d58b477e10fdd4b15f2d6b10c0cdca1976		 pdf-font-stream PDF embedded font (sfnt) at offset 0x73A8 4964 bytes
font_01_sfnt_off00008480.bin
25ceff72601fa26cabfc12ec1603f8406d527cf0b60f530d5384b283e5697c26		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8480 16320 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.