Malicious PDF — malware analysis report

Static analysis result for SHA-256 7893bcd5b63b2f40…

MALICIOUS

PDF

47.4 KB Created: 2020-09-04 00:41:36 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 53ef78ebda13a5409c305451c01272ea SHA-1: 1cfa4d7da8b35da8262f730f9d0a7dd359627283 SHA-256: 7893bcd5b63b2f40a043bbed573da4d6444e3f4e103c5b504a8f3602a4d21028
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, specifically pointing to 'https://ttraff.link/wix?keyword=acrobat+professional+10'. This URL is embedded within the document body, suggesting a social engineering lure to trick users into clicking it. The presence of a large number of external PDF links also indicates a link farm, likely for SEO manipulation or to obscure the malicious destination. No scripts were extracted from this sample.

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.link/wix?keyword=acrobat+professional+10
    • https://cdn.shopify.com/s/files/1/0432/4422/4679/files/lipogelujasatovevili.pdf
    • https://cdn.shopify.com/s/files/1/0428/2574/4540/files/cessna_310_manual.pdf
    • https://cdn.shopify.com/s/files/1/0431/3497/6157/files/64963058484.pdf
    • https://cdn.shopify.com/s/files/1/0430/5698/8317/files/fuwofab.pdf
    • https://cdn.shopify.com/s/files/1/0440/9176/8984/files/52326232662.pdf
    • https://cdn.shopify.com/s/files/1/0437/5497/9477/files/makalah_akuntansi_manajemen.pdf
    • https://cdn.shopify.com/s/files/1/0450/3673/2566/files/muxezoseselijebi.pdf
    • https://cdn.shopify.com/s/files/1/0434/2143/4023/files/61183566.pdf
    • https://cdn.shopify.com/s/files/1/0428/8138/4604/files/51349624152.pdf
    • https://cdn.shopify.com/s/files/1/0429/0147/1388/files/65308816911.pdf
    • https://cdn.shopify.com/s/files/1/0433/9014/0583/files/basic_story_map.pdf
    • https://cdn.shopify.com/s/files/1/0431/1570/8577/files/pifemaniwomegegixugetize.pdf
    • https://cdn.shopify.com/s/files/1/0436/4946/6526/files/55780018668.pdf
    • https://cdn.shopify.com/s/files/1/0438/4296/1570/files/berkhof_systematic_theology.pdf
    • https://cdn.shopify.com/s/files/1/0433/7077/4677/files/vutitemogapiwoz.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_off00007b67.bin
48d3085535784955f94888b5a1e563a19cac0e495e78603841b515ee41f3666b		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7B67 5332 bytes
font_01_sfnt_off00008d9d.bin
564c16d6bc452836cfd01bd07536f8d5fb41ebb054e9c13e2b87aabd3ef75eac		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8D9D 10288 bytes

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