Malicious PDF — malware analysis report

Static analysis result for SHA-256 5434f893b6e168b7…

MALICIOUS

PDF

57.9 KB Created: 2020-08-01 12:17:09 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 52b1c9fee56ba7eeff329983c3e7183d SHA-1: 615f16d55f55d609552994096e8ce68214a7191d SHA-256: 5434f893b6e168b7a95be3eda510e96f14a304351a4b662e0064649cf8942841
120 Risk Score

Malware Insights

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

The PDF contains a link that redirects to a known malicious domain, indicating a phishing or redirection attempt. The document body, though heavily obfuscated, contains the target URL. The presence of a link farm heuristic suggests the PDF is designed to host numerous external links, likely for SEO poisoning or to distribute malicious content.

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=mk+vs+dc+universe+moves
    • http://files.poemsalongtheway.com/uploads/1/3/1/6/131637357/jopafugimefa.pdf
    • http://files.ots-adventures.com/uploads/1/3/1/0/131070173/monanifup-nanevaf-vovugajedufugal.pdf
    • http://files.divinewordseminary-riverside.com/uploads/1/3/1/4/131438448/futewaluzunufiv.pdf
    • http://files.subwaystash.com/uploads/1/3/1/4/131438362/7bd3aadf.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/rexalomofovuwazeb.pdf
    • https://cdn.shopify.com/s/files/1/0440/0729/3086/files/fatibos.pdf
    • https://cdn.shopify.com/s/files/1/0429/9977/5381/files/fuseludu.pdf
    • https://cdn.shopify.com/s/files/1/0434/3152/6561/files/32534928692.pdf
    • https://cdn.shopify.com/s/files/1/0437/3915/2536/files/27546564488.pdf
    • https://cdn.shopify.com/s/files/1/0437/8509/3281/files/diver.pdf
    • https://cdn.shopify.com/s/files/1/0430/6799/8359/files/32228268811.pdf
    • https://cdn.shopify.com/s/files/1/0428/5969/2198/files/45448115885.pdf
    • https://cdn.shopify.com/s/files/1/0433/6222/2232/files/mamigopopixijurigoraxe.pdf
    • https://cdn.shopify.com/s/files/1/0429/2273/7830/files/92667532652.pdf
    • https://cdn.shopify.com/s/files/1/0433/5340/7646/files/event_photography_contract.pdf
    • https://cdn.shopify.com/s/files/1/0434/8231/6957/files/wabuxuj.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_off00009ba1.bin
5029d9d181933112660305133cf54be14a87c913b08e327a5f9e84a1d547b6bd		 pdf-font-stream PDF embedded font (sfnt) at offset 0x9BA1 4972 bytes
font_01_sfnt_off0000ac8d.bin
2f03b4ebc43a77eedae9fab02f06a6839f8306f658e1c6759c488d6c92a7e1a5		 pdf-font-stream PDF embedded font (sfnt) at offset 0xAC8D 14832 bytes

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