Malicious PDF — malware analysis report

Static analysis result for SHA-256 eeb1abd319e90e01…

MALICIOUS

PDF

38.3 KB Created: 2020-07-28 16:09:25 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 7b709a64f594f245c77004a8f79a76c0 SHA-1: 5821db49b9b536c794178855c0023ff817f288ae SHA-256: eeb1abd319e90e0132468d36d1eb7bbf7925385737c3dead9cd858ff3b2ac939
120 Risk Score

Malware Insights

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

The PDF file contains multiple heuristics indicating malicious intent, specifically linking to a known malicious redirector and employing a link farm strategy. The document body, though heavily obfuscated, suggests a lure related to graphic design templates. The primary IOC is the redirector URL, which is likely used to funnel victims to further malicious content.

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=silent+film+title+card+template+photoshop
    • http://files.sharonsalternatives.com/uploads/1/3/1/4/131438211/2ae3306762e8e.pdf
    • http://files.northenddeli.com/uploads/1/3/2/6/132682134/7668440.pdf
    • http://files.alannastephens.com/uploads/1/3/0/7/130740130/5793759.pdf
    • http://files.fauxbelladesigns.com/uploads/1/3/0/8/130814172/bopitenamawibud.pdf
    • http://files.leftcoastinspections.com/uploads/1/3/2/6/132696406/nisawano.pdf
    • http://files.alannastephens.com/
    • https://cdn.shopify.com/s/files/1/0429/3564/8409/files/5701117915.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/gujogu.pdf
    • https://cdn.shopify.com/s/files/1/0431/6086/2874/files/71775069853.pdf
    • https://cdn.shopify.com/s/files/1/0436/1905/7822/files/zimadabinutexux.pdf
    • https://cdn.shopify.com/s/files/1/0435/3897/2831/files/todojuramibet.pdf
    • https://cdn.shopify.com/s/files/1/0433/5229/3541/files/68989585862.pdf
    • https://cdn.shopify.com/s/files/1/0431/2186/8960/files/welav.pdf
    • https://cdn.shopify.com/s/files/1/0431/5850/3584/files/81983774678.pdf
    • https://cdn.shopify.com/s/files/1/0432/7541/9812/files/71529463455.pdf
    • https://cdn.shopify.com/s/files/1/0434/0154/3831/files/gowimirawalevegugolajifa.pdf
    • https://cdn.shopify.com/s/files/1/0428/4219/4083/files/82198460056.pdf
    • https://cdn.shopify.com/s/files/1/0427/6633/6167/files/wawodefuluzamowik.pdf
    • https://cdn.shopify.com/s/files/1/0431/2802/9345/files/xenosawedosabemetifi.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_off000058a4.bin
f5ca851742f8302bed6d492ab8491edc4b93ea37d31884c70d3809500db760fa		 pdf-font-stream PDF embedded font (sfnt) at offset 0x58A4 5288 bytes
font_01_sfnt_off00006a5e.bin
480563d9b020f9fb854e2c495589017650f336bec6c924d3270cbfe985a7f2a9		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6A5E 9652 bytes

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