Malicious PDF — malware analysis report

Static analysis result for SHA-256 3fd9b51bbca18902…

MALICIOUS

PDF

48.5 KB Created: 2020-08-20 11:47:23 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 8e08d4dd095cc244f36e8f788ea8ecae SHA-1: c59d55286c5050abacd71a32a20838d2f31efe23 SHA-256: 3fd9b51bbca189020730b8cdc0f51dac56a870915593b6cd6e054886e4d1c77a
120 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Phishing: Spearphishing Attachment T1059.001 Command and Scripting Interpreter: PowerShell

The PDF file contains a prominent link that redirects to a malicious URL, identified by the PDF_MALICIOUS_REDIRECTOR_LINK heuristic. The document body, though heavily obfuscated, contains the string 'Vashikaran mantra video' and the malicious URL, suggesting a lure. The PDF_SEO_LINK_FARM heuristic indicates a large number of outbound links, many pointing to Shopify, likely to obscure the malicious redirector. 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=vashikaran+mantra+video
    • http://romukoves.samuimango.com/uploads/1/3/0/9/130969742/pogawekiro-bumolupawopapu-linamusesasu.pdf
    • http://jaroje.celestechen.com/uploads/1/3/0/7/130738697/kofudazu_kurumafufena_rowevojeg.pdf
    • http://files.jbsjewels.org/uploads/1/3/2/3/132302718/sofudezupumagoba.pdf
    • https://cdn.shopify.com/s/files/1/0437/2869/9553/files/el_amor_bastien_vives.pdf
    • https://cdn.shopify.com/s/files/1/0427/6905/5911/files/73558917406.pdf
    • https://cdn.shopify.com/s/files/1/0432/0791/7729/files/513114440.pdf
    • https://cdn.shopify.com/s/files/1/0432/1368/4891/files/coercion_theory.pdf
    • https://cdn.shopify.com/s/files/1/0429/2316/3801/files/63059211436.pdf
    • https://cdn.shopify.com/s/files/1/0434/2874/1272/files/23789680627.pdf
    • https://cdn.shopify.com/s/files/1/0431/0630/4153/files/80978047896.pdf
    • https://cdn.shopify.com/s/files/1/0429/3961/3347/files/treatment_of_brucellosis.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 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00005fd1.bin
172f25c10496dad2aaca95008a3b7fde8ca66bdfece4c9234c2bf640c4fe91b6		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5FD1 5124 bytes
font_01_sfnt_off0000710a.bin
d0d2cbb3c0be40a526c81c3f9c37f258e751b91624a59e3a93395cfb1e89724d		 pdf-font-stream PDF embedded font (sfnt) at offset 0x710A 3152 bytes
font_02_sfnt_off00007dc8.bin
e9f841ef557d068d90947242ad4d5716b4d643774474c0019fc96245e31e09f9		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7DC8 10952 bytes
font_03_sfnt_off0000a36b.bin
a288d4949cd0ceb66f1aaa02621ecc078f0ed25e5d8d40e093c2b2a950d348c4		 pdf-font-stream PDF embedded font (sfnt) at offset 0xA36B 4984 bytes

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