Malicious PDF — malware analysis report

Static analysis result for SHA-256 95a997a730ce61f6…

MALICIOUS

PDF

61.5 KB Created: 2020-08-21 02:13:07 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 90c47ba2945c561619afeea78f17f634 SHA-1: d08f3b489280471e0949bf9ff31f307917da8926 SHA-256: 95a997a730ce61f6dfa69d90c4494ac102f0f10e04154ad30fc7aa0ce71d92a5
120 Risk Score

Malware Insights

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

The PDF contains a link to a known malicious redirector, ttraff.cc, which is likely used to obscure the final destination. The document body, though heavily obfuscated, contains the same URL, suggesting it's the primary lure. The PDF also hosts a large number of external links, many pointing to Shopify, which is a common tactic for SEO poisoning to drive traffic to malicious sites. 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.cc/pify?keyword=mlb+the+show+19+trophy+guide+powerpyx
    • http://mutegomof.back120.com/uploads/1/3/1/4/131438234/9515504.pdf
    • https://cdn.shopify.com/s/files/1/0430/0088/9507/files/vapeximukotowisuxojawof.pdf
    • https://cdn.shopify.com/s/files/1/0430/5059/8562/files/87437909285.pdf
    • https://cdn.shopify.com/s/files/1/0428/1863/3894/files/63406765626.pdf
    • https://cdn.shopify.com/s/files/1/0431/9431/9009/files/76332226870.pdf
    • https://cdn.shopify.com/s/files/1/0437/6018/9594/files/baseball_saved_us_book.pdf
    • https://cdn.shopify.com/s/files/1/0431/4451/1645/files/65992214371.pdf
    • https://cdn.shopify.com/s/files/1/0428/0880/3495/files/11290046157.pdf
    • https://cdn.shopify.com/s/files/1/0435/5234/2184/files/mirofojojepufosa.pdf
    • https://cdn.shopify.com/s/files/1/0435/2435/8308/files/george_mccrae_rock_your_baby.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_off0000b1b8.bin
d9676376e7bcec53cdd2af7d364725d6ce04e7c513e8deab5939fed1d1469c45		 pdf-font-stream PDF embedded font (sfnt) at offset 0xB1B8 5624 bytes
font_01_sfnt_off0000c4fd.bin
673052a5c33765ded8a6c3bf8435f6ab8a82809d762e6a164d835d60abf0038a		 pdf-font-stream PDF embedded font (sfnt) at offset 0xC4FD 10588 bytes

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