Malicious PDF — malware analysis report

Static analysis result for SHA-256 b9cad1507ce63e59…

MALICIOUS

PDF

234.0 KB Created: 2020-07-29 11:49:24 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: cfb723171b28da7154c138e26cdc6351 SHA-1: 7c59a247fb8e98c15480282377e8b4c71b71ec0b SHA-256: b9cad1507ce63e59df84adf4528d1ebb415f48364ae0736488b66414afc05178
100 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.001 User Execution: Malicious Link

The PDF file contains a heuristic indicating it is a malicious redirector link, specifically pointing to 'ttraff.cc'. The document body, though heavily obfuscated, suggests a lure related to a 'Cisco wireless access point configuration guide'. This, combined with the 'SE_BROWSER_INSTALL_LURE' heuristic, indicates a social engineering attempt to trick the user into clicking the malicious link, likely to download further malware or steal credentials.

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.
  • Browser extension / update installation lure high SE_BROWSER_INSTALL_LURE
    Document tells the user to install a browser extension, plugin, viewer, or browser update to view content — a common social-engineering path for credential theft and malware installation
  • 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/pify?keyword=cisco+wireless+access+point+configuration+guide+pdf
    • http://files.seanbeaudoin.com/uploads/1/3/2/8/132815123/b26149b489.pdf
    • http://files.bottlealleytheatre.com/uploads/1/3/2/6/132682607/junowufetawilamana.pdf
    • http://files.poehaku.com/uploads/1/3/1/6/131607239/ab7f23f.pdf
    • http://files.containerofdreams.org/uploads/1/3/0/7/130738806/nasenapiwapoxed.pdf
    • https://cdn.shopify.com/s/files/1/0428/0333/1231/files/pebupa.pdf
    • https://cdn.shopify.com/s/files/1/0429/4203/8182/files/wefixugoxovewiba.pdf
    • https://cdn.shopify.com/s/files/1/0437/1290/5370/files/13754851633.pdf
    • https://cdn.shopify.com/s/files/1/0433/9128/7461/files/17546298833.pdf
    • https://cdn.shopify.com/s/files/1/0431/9952/9120/files/37105936303.pdf
    • https://cdn.shopify.com/s/files/1/0438/0993/1426/files/kodemakoxorepagip.pdf
    • https://cdn.shopify.com/s/files/1/0431/6574/5312/files/pawimamepi.pdf
    • https://cdn.shopify.com/s/files/1/0432/5107/3174/files/55790955296.pdf
    • https://cdn.shopify.com/s/files/1/0432/0939/2285/files/64604748701.pdf
    • https://cdn.shopify.com/s/files/1/0430/5063/1319/files/49313223707.pdf
    • https://cdn.shopify.com/s/files/1/0434/8428/3033/files/bimarewimivewipazetaruve.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_off00035172.bin
3ad198af78f9ed5a54eb86afc08f3a799ff5c5ac43a2d6f9bec99cc390559097		 pdf-font-stream PDF embedded font (sfnt) at offset 0x35172 5320 bytes
font_01_sfnt_off000363a9.bin
b7caab6a6904d020505d0abaeace2c11f1c3562709bfcc9dac5c99606aca9f85		 pdf-font-stream PDF embedded font (sfnt) at offset 0x363A9 17180 bytes

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