Malicious PDF — malware analysis report

Static analysis result for SHA-256 dbf27bed38f40b53…

MALICIOUS

PDF

52.1 KB Created: 2020-08-06 14:09:31 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 57c54c68cc8a38f2ac06a9bd1a48f1fa SHA-1: 8c0fe6c7fb9cbde78f252ee2bccb11d3ea648f8c SHA-256: dbf27bed38f40b53886352571d620d9d5a41914c492b5d8d966f779d3e458c88
120 Risk Score

Malware Insights

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

This PDF file contains a significant number of embedded links, identified as a PDF SEO link farm. One of these links, 'https://ttraff.ru/pify?keyword=1975+cessna+150m+poh+pdf', points to a known malicious redirector. The primary purpose appears to be distributing or redirecting users to other potentially malicious content through this link farm. No scripts were extracted, limiting the analysis of direct payload execution.

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=1975+cessna+150m+poh+pdf
    • http://files.eco-full.com/uploads/1/3/1/3/131380083/766237b51.pdf
    • http://files.handbendi.com/uploads/1/3/1/4/131409309/cd0a9e82b.pdf
    • http://munoveda.taichiathome.com/uploads/1/3/1/8/131856772/muzotukologo.pdf
    • http://files.sthomaskensaltown.co.uk/uploads/1/3/1/3/131383837/jofifina-vumiwaxu-pavapimik-kidexebuborelor.pdf
    • https://cdn.shopify.com/s/files/1/0431/2589/9426/files/gisowowunuvita.pdf
    • https://cdn.shopify.com/s/files/1/0437/9131/9200/files/76338237063.pdf
    • https://cdn.shopify.com/s/files/1/0432/8954/2809/files/85710064094.pdf
    • https://cdn.shopify.com/s/files/1/0436/5864/1573/files/19440657087.pdf
    • https://cdn.shopify.com/s/files/1/0437/7794/9848/files/gopivonozerogosuwominedid.pdf
    • https://cdn.shopify.com/s/files/1/0431/7652/5984/files/99_names_of_allah_in_english_translation.pdf
    • https://cdn.shopify.com/s/files/1/0435/0902/2886/files/jidibamenemupagofoxugubet.pdf
    • https://cdn.shopify.com/s/files/1/0431/1996/8417/files/42107809344.pdf
    • https://cdn.shopify.com/s/files/1/0428/6054/4156/files/22065858337.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_off000082fc.bin
f361f56f6077def86738da306a22daf1fdc74c2210454ec2a5f78eb2231037ea		 pdf-font-stream PDF embedded font (sfnt) at offset 0x82FC 5728 bytes
font_01_sfnt_off00009665.bin
0212a354061dcac4c34607ce9681425f10177e58c72d3dd191899ff727b0a01e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x9665 14548 bytes

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