Malicious PDF — malware analysis report

Static analysis result for SHA-256 ee7b83d5f1cd1755…

MALICIOUS

PDF

37.4 KB Created: 2020-08-26 11:55:33 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 4894dd738b5577d4873098e6ad6191b3 SHA-1: fbeb4733585b883e7e69833028e14189c4f66c26 SHA-256: ee7b83d5f1cd175558f660e203f96d3056af7a4673a0ce0a1ae841034eb0fbee
120 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded links, many of which point to a redirector service known to host malicious content. The document body itself is heavily obfuscated but contains references to the malicious redirector URL and other URLs hosted on Shopify, suggesting a link farm or SEO poisoning tactic. No scripts were extracted from this sample, but the presence of numerous malicious links indicates a phishing or redirection attack.

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=bahut+pyar+karte+hain+tumko+sanam+hd
    • http://kasediv.msarredondo.com/uploads/1/3/1/4/131453540/xapigokekexaba-zowotenomad-sofes-vewanakenenux.pdf
    • http://files.fwrna.org/uploads/1/3/0/7/130739060/6493700.pdf
    • http://files.50statesnightwatch.com/uploads/1/3/1/6/131636766/7c33c85c.pdf
    • http://files.forgecustomhomes.com/uploads/1/3/1/4/131453598/e4acbcce.pdf
    • http://files.fireflytoysandgames.com/uploads/1/3/2/7/132740445/matedopevuve_karudusokunum_kosix_rimukup.pdf
    • https://cdn.shopify.com/s/files/1/0436/9891/3435/files/badmaash_company_hd_movie.pdf
    • https://cdn.shopify.com/s/files/1/0439/5322/5883/files/divinity_original_sin_2_wizard_build_guide.pdf
    • https://cdn.shopify.com/s/files/1/0434/7710/6838/files/33847853201.pdf
    • https://cdn.shopify.com/s/files/1/0432/1751/8751/files/mazopane.pdf
    • https://cdn.shopify.com/s/files/1/0434/3182/1473/files/kuzedafatijajiv.pdf
    • https://cdn.shopify.com/s/files/1/0440/5736/2597/files/61502949560.pdf
    • https://cdn.shopify.com/s/files/1/0431/5398/1594/files/how_to_draw_a_garden.pdf
    • https://cdn.shopify.com/s/files/1/0429/3191/2857/files/budiserokideviv.pdf
    • https://cdn.shopify.com/s/files/1/0429/1995/2540/files/84869691936.pdf
    • https://cdn.shopify.com/s/files/1/0428/0506/7943/files/eclecticismo_arquitectura.pdf
    • https://cdn.shopify.com/s/files/1/0431/2465/4241/files/tomerim.pdf
    • https://cdn.shopify.com/s/files/1/0434/9722/6402/files/4815375711.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_off0000519f.bin
c221a5199d24442cae058ea1654b3c3b52e8e1fe19cbe6866cbca9dc6dff5b12
pdf-font-stream PDF embedded font (sfnt) at offset 0x519F 5380 bytes
font_01_sfnt_off000063c7.bin
ef2be5ec0458f1657aa258a6530473b6f01b879142d3ca34b0b90ce45fd2d389
pdf-font-stream PDF embedded font (sfnt) at offset 0x63C7 11208 bytes