Malicious PDF — malware analysis report

Static analysis result for SHA-256 ce62c2cb4f448d61…

MALICIOUS

PDF

50.8 KB Created: 2020-08-06 02:37:22 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: c295c2a92c54e0846fa7b84dec6a3a39 SHA-1: 2e7c2caf37451c587d253ec2114d1d4395879ba7 SHA-256: ce62c2cb4f448d6108e5d909dd02bfbc9cdb1402ab86d287b0fa388a201b6b68
150 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link pointing to 'ttraff.com'. The document body, though heavily obfuscated, contains text related to 'Dahua camera price list pdf', suggesting a lure. The primary IOC is the malicious redirector URL, which is likely used to deliver a secondary payload.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

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=dahua+camera+price+list+pdf
    • http://files.benefitplans.org/uploads/1/3/0/8/130874038/vopununusa_suvepij.pdf
    • http://files.autismhomebase.com/uploads/1/3/0/7/130739052/f2ea4d375f3.pdf
    • http://files.rattlesnakeregiment.com/uploads/1/3/2/6/132695738/josememulepulaj.pdf
    • https://cdn.shopify.com/s/files/1/0431/1410/2941/files/55052789878.pdf
    • https://cdn.shopify.com/s/files/1/0430/1373/4563/files/blank_calendar_january_2015.pdf
    • https://cdn.shopify.com/s/files/1/0431/2429/3796/files/wewivasekabiko.pdf
    • https://cdn.shopify.com/s/files/1/0429/7503/5541/files/nojuz.pdf
    • https://cdn.shopify.com/s/files/1/0432/3033/1047/files/ralikolafogulifol.pdf
    • https://cdn.shopify.com/s/files/1/0435/7927/7467/files/woodsmith_magazine_download.pdf
    • https://cdn.shopify.com/s/files/1/0432/3121/5780/files/fe_civil_review_manual.pdf
    • https://cdn.shopify.com/s/files/1/0428/7974/6201/files/jeropimenamovaxatapudugov.pdf
    • https://cdn.shopify.com/s/files/1/0430/3339/5351/files/21338321209.pdf
    • https://cdn.shopify.com/s/files/1/0432/4923/8184/files/rirudabifimepikis.pdf
    • https://cdn.shopify.com/s/files/1/0430/3945/7431/files/bovute.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/
    • https://cdn.shopify.com/s/files/1/0428/7

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006914.bin
53e5c445118884f8256abdffccfb1312f5ae9e637b1a6cbef8684dae52d790a9		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6914 5396 bytes
font_01_sfnt_off00007b46.bin
37cd00b3fdfb85e7793c490a0c1a1b102188f5f428f8f5e2b2f8fc9e819e5dfa		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7B46 14984 bytes
font_02_sfnt_off0000a94b.bin
c41fc46809d2260d2d1a821cef6bb00dae560fdbad380da94a93f29d012df54e		 pdf-font-stream PDF embedded font (sfnt) at offset 0xA94B 16164 bytes

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