Malicious PDF — malware analysis report

Static analysis result for SHA-256 b55e818710579255…

MALICIOUS

PDF

40.4 KB Created: 2020-08-21 10:51:16 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 5b659184a82bf95faf4673d7c4411fa8 SHA-1: 80592fa2e8a27e1ee4d1f08cb397d468dbcac0bb SHA-256: b55e8187105792554c354b1fa21ea18657e1d6b73848ecf3047b8a0d54133ebc
120 Risk Score

Malware Insights

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

The PDF file contains a heuristic firing for a malicious redirector link pointing to 'https://ttraff.com/pify?keyword=next+android+version+p+name'. Additionally, it exhibits characteristics of a PDF link farm, embedding numerous links, many of which point to Shopify domains. The document body, though partially corrupted, contains text related to 'Next android version p name', suggesting a lure to trick users into clicking the malicious link. The primary intent appears to be redirecting users to malicious infrastructure.

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=next+android+version+p+name
    • http://rotoduj.pocketfriendlyonline.com/uploads/1/3/0/8/130873952/4562143.pdf
    • https://cdn.shopify.com/s/files/1/0428/1748/7011/files/mafebafedenimovirizon.pdf
    • https://cdn.shopify.com/s/files/1/0438/3378/6530/files/pemivuvi.pdf
    • https://cdn.shopify.com/s/files/1/0433/6222/2232/files/11032589802.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/42778697636.pdf
    • https://cdn.shopify.com/s/files/1/0434/1222/6202/files/49472574459.pdf
    • https://cdn.shopify.com/s/files/1/0436/4071/7472/files/lalavididuduvamigowub.pdf
    • https://cdn.shopify.com/s/files/1/0453/8662/9288/files/81201950525.pdf
    • https://cdn.shopify.com/s/files/1/0428/6621/3031/files/behind_the_scenes_at_the_museum.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_off000061d9.bin
f0bdbb2bd632a49ed83b009a8cc7e5796d6ce4ff0d1857f29814cc3ad9657d9c		 pdf-font-stream PDF embedded font (sfnt) at offset 0x61D9 5172 bytes
font_01_sfnt_off00007362.bin
7d707cbff57179be0c616c1b0fac724f22f63c0c5ea0e7208a0644d1d9d4a78b		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7362 10084 bytes

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