Malicious PDF — malware analysis report

Static analysis result for SHA-256 ceb65eb3b0d93e85…

MALICIOUS

PDF

33.7 KB Created: 2020-08-12 02:29:10 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 3b2a3320b76d06890c08b60710d7ba24 SHA-1: f604dc0ffa6d11176900047244893159eb72321b SHA-256: ceb65eb3b0d93e859cdace7436e0958a0ad0384c105781f994ef53e8c3716f7f
120 Risk Score

Malware Insights

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

The PDF file contains numerous embedded links, with a critical heuristic identifying a link to a known malicious redirector infrastructure. The document body, though heavily obfuscated, contains the URL 'https://ttraff.com/pify?keyword=mathematical+physics+by+satya+prakash+pdf', suggesting a lure to a malicious site. The presence of a link farm further indicates an attempt to distribute malicious content or SEO spam. 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=mathematical+physics+by+satya+prakash+pdf
    • http://kejinu.myoptique2020.com/uploads/1/3/1/6/131637896/rexegemevujejirezu.pdf
    • http://files.coljonesswimhurstville.com.au/uploads/1/3/2/7/132741181/9628755.pdf
    • http://files.sccavanners.com/uploads/1/3/1/4/131454352/jakipoji.pdf
    • https://cdn.shopify.com/s/files/1/0433/2853/6731/files/24164999168.pdf
    • https://cdn.shopify.com/s/files/1/0434/0373/9294/files/60868006088.pdf
    • https://cdn.shopify.com/s/files/1/0431/2222/9397/files/fogijumilujugujilomase.pdf
    • https://cdn.shopify.com/s/files/1/0433/1785/4373/files/navonoxorag.pdf
    • https://cdn.shopify.com/s/files/1/0430/9614/6074/files/bluetooth_module_hc_05.pdf
    • https://cdn.shopify.com/s/files/1/0434/0029/8648/files/64346693324.pdf
    • https://cdn.shopify.com/s/files/1/0434/6196/8025/files/epidemiology_biostatistics_and_preventive_medicine_3rd_edition.pdf
    • https://cdn.shopify.com/s/files/1/0437/2152/3349/files/combiner_plusieurs_en_1.pdf
    • https://cdn.shopify.com/s/files/1/0429/5124/5987/files/katuwi.pdf
    • https://cdn.shopify.com/s/files/1/0431/8684/7904/files/10405781606.pdf
    • https://cdn.shopify.com/s/files/1/0433/8706/0378/files/certificat_de_cession_de_vhicule_gratuit.pdf
    • https://cdn.shopify.com/s/files/1/0435/4310/1591/files/6209173835.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_off0000459b.bin
ddc71f2e58bbd504889365c8281ebc92ca5e35c6a70b9e4dc2240f3d6d763495		 pdf-font-stream PDF embedded font (sfnt) at offset 0x459B 5704 bytes
font_01_sfnt_off000058e4.bin
51191596b55a4b8f47c4fb874e74d213373b53c41101f450f0112ddbe46bc35a		 pdf-font-stream PDF embedded font (sfnt) at offset 0x58E4 9636 bytes

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