Malicious PDF — malware analysis report

Static analysis result for SHA-256 9258a3fc0870e306…

MALICIOUS

PDF

46.9 KB Created: 2020-08-09 19:35:56 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 85b376746c41f7da168cd77370f4bd86 SHA-1: 011720bd36d6c8be452f1169be8ccc4b801ee554 SHA-256: 9258a3fc0870e3064906b54166b103ef6c0df049934e88184e2e98ead6fea377
120 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell T1204.002 Malicious Link

The PDF file contains a heuristic firing for a malicious redirector link, pointing to 'https://ttraff.ru/pify?keyword=base+de+datos+en+excel+2020+pdf'. This indicates the document's primary purpose is to redirect users to malicious infrastructure. Additionally, a PDF link farm heuristic suggests the document is designed to host numerous external links, likely for SEO manipulation or to distribute further malicious content. No scripts were extracted from this sample, limiting the analysis of its direct execution behavior.

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=base+de+datos+en+excel+2020+pdf
    • http://butef.netherhaughfarm.com/uploads/1/3/2/8/132814930/1797680.pdf
    • http://files.puresoundnyc.com/uploads/1/3/2/6/132683292/5479146.pdf
    • http://files.cheerfullydani.com/uploads/1/3/2/7/132710753/gexak_memegi_tuvozo.pdf
    • https://cdn.shopify.com/s/files/1/0428/5261/4311/files/vuzowuv.pdf
    • https://cdn.shopify.com/s/files/1/0432/1820/6887/files/83695590671.pdf
    • https://cdn.shopify.com/s/files/1/0432/4609/2443/files/80998577356.pdf
    • https://cdn.shopify.com/s/files/1/0438/1035/7405/files/takuk.pdf
    • https://cdn.shopify.com/s/files/1/0430/3863/8241/files/norafowu.pdf
    • https://cdn.shopify.com/s/files/1/0429/7188/9817/files/durijuriwosaradoninubo.pdf
    • https://cdn.shopify.com/s/files/1/0431/3127/3365/files/metawolidilimewopuxejud.pdf
    • https://cdn.shopify.com/s/files/1/0434/5351/3894/files/78491480807.pdf
    • https://cdn.shopify.com/s/files/1/0428/7230/7875/files/zosadelozeperujosi.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/doworefobose.pdf
    • https://cdn.shopify.com/s/files/1/0435/0138/7936/files/30118500933.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006a55.bin
cfc751234be0381f3efbb2967a181a70d78cfb25da7d5a2ff19c7916f1d37a09		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6A55 5184 bytes
font_01_sfnt_off00007c07.bin
537dcc5d24e54718a67d27d4a42d196c37f2266a9599b46783bbcf4298edc481		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7C07 10752 bytes
font_02_sfnt_off00009f0e.bin
4fcfa7c68d76e23b667942a3ac892d2d5d88346478daafc61479ad4df4af3dd3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x9F0E 4324 bytes

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