Malicious PDF — malware analysis report

Static analysis result for SHA-256 f3c9f69fb854fc65…

MALICIOUS

PDF

99.5 KB Created: 2020-08-30 10:50:52 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: f9bc6e245245eff6c2e62f8c5cadae64 SHA-1: a64884ac5bf91ee949afff031e164cd53173ed40 SHA-256: f3c9f69fb854fc6548e047ccbe689d51221f8289040ee8c1e65ee180fcff0158
128 Risk Score

Malware Insights

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

The PDF contains a link to a redirector URL, which is a common technique for delivering malware or phishing pages. The heuristic PDF_MALICIOUS_REDIRECTOR_LINK confirms this, and the embedded URL points to 'ttraff.com'. The document body, though heavily obfuscated, contains text related to software cracking and the malicious URL, suggesting a lure for downloading potentially unwanted or malicious software.

Heuristics 4

  • 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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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.com/wix?keyword=nanjing+swansoft+cnc+simulator+6.9.1.3+crack
    • https://static.usrfiles.com/ugd/b8c837_9ebb990a82c140de998cf1f85cacf811.pdf
    • https://static.usrfiles.com/ugd/c4ccc4_0c6fc889ecb04d8cb71f51c5d3c4d5bd.pdf
    • https://static.usrfiles.com/ugd/b8c837_d60a17ba91e14a93979f68ec8bb0add7.pdf
    • https://static.usrfiles.com/ugd/b8c837_7492fa46f0884664b73071ecbe1ce725.pdf
    • https://static.usrfiles.com/ugd/c618e9_12603eee7f464fa9990b52b9050cae80.pdf
    • https://static.usrfiles.com/ugd/09273f_557441477b6542ceb3f3b3ffe8482d3c.pdf
    • https://static.usrfiles.com/ugd/b8c837_a341ba4002a24a2db20cc92eff796463.pdf
    • https://cdn.shopify.com/s/files/1/0433/2650/5118/files/97138391234.pdf
    • https://cdn.shopify.com/s/files/1/0431/9415/5170/files/animated_mouse_cursors.pdf
    • https://cdn.shopify.com/s/files/1/0431/1882/1530/files/dog_castration_procedure.pdf
    • https://cdn.shopify.com/s/files/1/0431/8684/7905/files/68090802758.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_off00012f4f.bin
b54921c96524fc3ef488b19ee2de2794207e26cd98f4337cf9042bf22f98f5ef		 pdf-font-stream PDF embedded font (sfnt) at offset 0x12F4F 5724 bytes
font_01_sfnt_off000142cc.bin
4fe3ac7a361bc0e3347de4a6ef00068a7b4c11af787e80172cc2472f0e95e0f7		 pdf-font-stream PDF embedded font (sfnt) at offset 0x142CC 15356 bytes
font_02_sfnt_off0001727b.bin
9f355172d696dda274cac500966718f112ce76951f19577ac4888987ea6471b2		 pdf-font-stream PDF embedded font (sfnt) at offset 0x1727B 4324 bytes

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