Malicious PDF — malware analysis report

Static analysis result for SHA-256 deeda7679aa06f76…

MALICIOUS

PDF

45.4 KB Created: 2020-08-18 22:29:59 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 3d34188957f2e65480af26a450226829 SHA-1: 3d319e0d4bf44ac2c1315be893c35362d0ac1bbc SHA-256: deeda7679aa06f76e23f1a6f2556f9716f78afe15bf5e51f443da524b170eafd
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, many of which point to external PDF files hosted on various domains, including a known malicious redirector. The document body text, though partially corrupted, suggests a lure related to a participation certificate template. The primary malicious link, 'https://ttraff.cc/pify?keyword=attestato+di+partecipazione+template', is a critical finding indicating an attempt to redirect the user to malicious infrastructure. The presence of a link farm and a malicious redirector strongly suggests a phishing or social engineering attack.

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.cc/pify?keyword=attestato+di+partecipazione+template
    • http://wologuxuw.be-brave.shop/uploads/1/3/2/6/132682347/3227667.pdf
    • http://files.chilhowiecc.com/uploads/1/3/0/8/130813701/jepivarunoseto.pdf
    • https://cdn.shopify.com/s/files/1/0427/9782/6207/files/wegerofelovoximepumoruwe.pdf
    • https://cdn.shopify.com/s/files/1/0432/8092/4837/files/83551773761.pdf
    • https://cdn.shopify.com/s/files/1/0432/3803/1518/files/71766814145.pdf
    • https://cdn.shopify.com/s/files/1/0437/6464/6049/files/the_witcher_enhanced_edition_walkthrough.pdf
    • https://cdn.shopify.com/s/files/1/0428/5680/8607/files/sikoga.pdf
    • https://cdn.shopify.com/s/files/1/0429/8942/0695/files/77124749418.pdf
    • https://cdn.shopify.com/s/files/1/0438/4574/6838/files/97696557580.pdf
    • https://cdn.shopify.com/s/files/1/0448/2488/7456/files/bilangan_rasional.pdf
    • https://cdn.shopify.com/s/files/1/0432/4347/1003/files/visio_2010_tutorial.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_off00006cf5.bin
8b1b2145a0d8a9faed07fa94b1aed5d8ab06153e5bc3e8691963847837f90d9a		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6CF5 5256 bytes
font_01_sfnt_off00007ebc.bin
a7b9f7db16ba009c51011d0d783ae25de3d0439fc3cec355099ae47dc754d109		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7EBC 13908 bytes

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