Malicious PDF — malware analysis report

Static analysis result for SHA-256 3debd5afb77535f8…

MALICIOUS

PDF

43.7 KB Created: 2020-08-31 14:00:59 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 4066ef0538bda7e48f30e782434af9bb SHA-1: 66b438f0e803631b9798bd8a824ab3ad8573a7f7 SHA-256: 3debd5afb77535f8ed9d8890853bc1ab0403ca010f35f1ca437eb48dcd059e6c
120 Risk Score

Malware Insights

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

The PDF contains a heuristic firing for a malicious redirector link, which is the primary indicator of malicious intent. The document body, though heavily obfuscated, contains the URL 'https://ttraff.cc/wix?keyword=tripartite+agreement+pdf', suggesting a lure to a malicious site. Additionally, a large number of external PDF links were found, many pointing to benign Shopify domains, but the presence of the malicious redirector indicates a likely phishing or scam attempt.

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/wix?keyword=tripartite+agreement+pdf
    • https://cdn.shopify.com/s/files/1/0437/5265/2951/files/business_english_vocabulary_upper_intermediate.pdf
    • https://cdn.shopify.com/s/files/1/0461/7306/1273/files/65315139537.pdf
    • https://cdn.shopify.com/s/files/1/0428/7224/2342/files/3051274243.pdf
    • https://cdn.shopify.com/s/files/1/0431/2816/0420/files/koponog.pdf
    • https://cdn.shopify.com/s/files/1/0429/2873/4375/files/derubesesugon.pdf
    • https://cdn.shopify.com/s/files/1/0431/7121/7572/files/zesamenuvobunegiva.pdf
    • https://cdn.shopify.com/s/files/1/0434/0596/7527/files/debegotexamu.pdf
    • https://static.usrfiles.com/ugd/b8c837_86b3e735cce247c796b4d063db64c3de.pdf
    • https://static.usrfiles.com/ugd/f3cb45_ab1825191a7c4e99b1f18d5b535c5d25.pdf
    • https://static.usrfiles.com/ugd/bf650e_1f1934ec15584b7d88ea1d33d658cef3.pdf
    • https://static.usrfiles.com/ugd/47b1e8_7dcda518d9ca4310af1e376d0100dc88.pdf
    • https://static.usrfiles.com/ugd/c83fdb_d4e093e01805488a8b541e4f68688a87.pdf
    • https://static.usrfiles.com/ugd/3aee12_9402d845d62c4b5eb1727fbce97bd435.pdf
    • https://static.usrfiles.com/ugd/b8c837_78933278833e4d14aec1e5388937cc2b.pdf
    • https://static.usrfiles.com/ugd/d7ba0f_96f3f6983d0543f5a43e3b641c6ae1ce.pdf
    • https://static.usrfiles.com/ugd/63d3ad_eecae432ec0c4de9b02d7ebb96f6add1.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_off00006d8a.bin
5f2f17d37d4d5b15e8e55a271e9569204a4b8ffc33451faaf96d122318dc69ff		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6D8A 5100 bytes
font_01_sfnt_off00007ecf.bin
5280486e8fe4d020b94c2614a7f9aa9817c9e3bc85f4ad3cf5d24b0e1c95a0ed		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7ECF 10212 bytes

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