Malicious PDF — malware analysis report

Static analysis result for SHA-256 41ddf2a287e88bb2…

MALICIOUS

PDF

42.0 KB Created: 2020-08-22 12:14:11 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 79e556787d6f528fa8d48fbc40837ebc SHA-1: 21b3e840a2dc0e0c2c6016baa4ce2a940a83bd1b SHA-256: 41ddf2a287e88bb24b8e3c19fa2e81a0eaeb39df58c02ee0a5d23b26094af1b7
120 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded links, a technique often used to redirect users to malicious websites. One critical heuristic firing indicates a direct link to known malicious redirector infrastructure at 'ttraff.com'. The document body, though heavily obfuscated, contains the URL 'https://ttraff.com/pify?keyword=manchester+city+vs+tottenham+bleacher+report', suggesting a lure related to sports news to entice clicks. 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.com/pify?keyword=manchester+city+vs+tottenham+bleacher+report
    • http://files.emmanoelleclark.com/uploads/1/3/1/4/131437873/777c966189e115.pdf
    • http://files.bonplan-pinel.com/uploads/1/3/2/7/132740892/zejudezotesudol-tamifiwami-famisixo-puxunijefo.pdf
    • http://javubiso.shamansspirit.net/uploads/1/3/1/4/131407406/dimos_poloxiboki.pdf
    • https://cdn.shopify.com/s/files/1/0434/3624/5142/files/occupational_hazards_in_hospital.pdf
    • https://cdn.shopify.com/s/files/1/0427/5470/3526/files/48300670583.pdf
    • https://cdn.shopify.com/s/files/1/0434/6970/1280/files/56276459719.pdf
    • https://cdn.shopify.com/s/files/1/0432/9432/6949/files/dixurizebomebe.pdf
    • https://cdn.shopify.com/s/files/1/0428/4553/6419/files/sumafisiniwopik.pdf
    • https://cdn.shopify.com/s/files/1/0432/1853/4557/files/rug_doctor_pro_instructions.pdf
    • https://cdn.shopify.com/s/files/1/0432/3799/8754/files/dixigikufupabepi.pdf
    • https://cdn.shopify.com/s/files/1/0433/1284/0872/files/35603409415.pdf
    • https://cdn.shopify.com/s/files/1/0429/7375/7603/files/9487539938.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_off00006659.bin
429aa934e4827ce5d97dbf9edfc697ee4cd1afd6bb8d0373986d8f6e9a4ddec9		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6659 5480 bytes
font_01_sfnt_off000078d6.bin
198fa290598aed93923d6fa04b4bb7cdf93c7125fceb3e1bf0061d20ad02a121		 pdf-font-stream PDF embedded font (sfnt) at offset 0x78D6 10084 bytes

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