Malicious PDF — malware analysis report

Static analysis result for SHA-256 3cec39f51d08465e…

MALICIOUS

PDF

47.6 KB Created: 2020-08-17 04:52:42 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 4fe53e78e3e9e75151aa88e5370c2447 SHA-1: 3ed6eaaf63dd61006297b858f48622e344760859 SHA-256: 3cec39f51d08465e11ca30d11611aec9c6213dc4b1661e3a1571631bf8da26c7
120 Risk Score

Malware Insights

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

The PDF contains a mass of external links, including a critical redirector link to 'ttraff.cc'. The document body, though heavily obfuscated, contains the same redirector URL and a Shopify URL, suggesting a lure to download a template. The primary intent appears to be directing users to malicious infrastructure via a seemingly benign document.

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.cc/pify?keyword=icon+template+home+assistant
    • http://files.francesandkevin2019.org/uploads/1/3/0/7/130740521/gopidomuva.pdf
    • http://files.ericksonorchard.com/uploads/1/3/0/8/130874154/lufawufiz.pdf
    • http://dukipowen.peacejams.com/uploads/1/3/0/8/130814328/dalufulivase-dilezil-ximomitonule-kesufifafokewuf.pdf
    • http://likelak.woodworkingbeyond.com/uploads/1/3/0/7/130776485/senapo-bavimunu.pdf
    • https://cdn.shopify.com/s/files/1/0431/3805/6354/files/sajukenufor.pdf
    • https://cdn.shopify.com/s/files/1/0429/5000/0791/files/zejejipiradebirirovewalik.pdf
    • https://cdn.shopify.com/s/files/1/0429/0278/2111/files/sezosugepukosovoxovafis.pdf
    • https://cdn.shopify.com/s/files/1/0440/1538/6789/files/martin_lawrence_tim_robbins.pdf
    • https://cdn.shopify.com/s/files/1/0431/6112/5015/files/xebirupixirujebal.pdf
    • https://cdn.shopify.com/s/files/1/0428/7240/6179/files/9610337715.pdf
    • https://cdn.shopify.com/s/files/1/0434/0069/1866/files/android_webview_detect_back_button.pdf
    • https://cdn.shopify.com/s/files/1/0431/2137/7434/files/56080175758.pdf
    • https://cdn.shopify.com/s/files/1/0430/9352/4634/files/les_acariens.pdf
    • https://cdn.shopify.com/s/files/1/0437/4206/8887/files/tomiwon.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_off0000705e.bin
c2d6fd5a8faf4d361baf487c5f26f6d0ad204a34533b75803313dd76cf988125		 pdf-font-stream PDF embedded font (sfnt) at offset 0x705E 5012 bytes
font_01_sfnt_off00008131.bin
6ebd6a047041895cd87b1b83a505544ce8c4f4b3364245c4059089e2282ba04b		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8131 15440 bytes

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