Malicious PDF — malware analysis report

Static analysis result for SHA-256 9d000dbaccc0ad78…

MALICIOUS

PDF

43.5 KB Created: 2020-08-31 05:40:00 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: f88b907b365aaa904d72042278756e63 SHA-1: f0d584445aafccc3d296d58664ca25f44414e5d4 SHA-256: 9d000dbaccc0ad78627866fa8138d3974c7a4804d68353ac0892578fcdccb7e1
152 Risk Score

Malware Insights

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

The PDF contains a prominent link to 'ttraff.cc', which is flagged as a malicious redirector. The document body, though heavily obfuscated, contains text related to 'Edius 7 serial number' and the URLs, suggesting a lure to trick users into clicking the malicious link. The presence of a large number of external PDF links also indicates a link farm, a common tactic for SEO poisoning or distributing malicious content.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 4

  • 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.
  • Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL
    The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
  • 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/wix?keyword=edius+7+serial+number
    • https://cdn.shopi
    • https://static.usrfiles.com/ugd/76b6de_98511314b7bb420eaf268f2e897470b7.pdf
    • https://static.usrfiles.com/ugd/b8c837_b333c4d086224df4b36d7181bd313ca5.pdf
    • https://static.usrfiles.com/ugd/b8c837_7b096c093df247f990f3b43c424a6382.pdf
    • https://static.usrfiles.com/ugd/3aca14_d88c3f827d36480f8bace70e33ea22a7.pdf
    • https://static.usrfiles.com/ugd/badafb_fc1b527396c948879cee5df31901dc90.pdf
    • https://static.usrfiles.com/ugd/b8c837_fdfa90182a5d4bc28e25f13ed5d7ec77.pdf
    • https://static.usrfiles.com/ugd/5438e3_6b9bf6cf1b334f67a6711ce898886e9a.pdf
    • https://static.usrfiles.com/ugd/19ce5d_e6261b878f5c40cbb1f34f5a678f86ad.pdf
    • https://cdn.shopify.com/s/files/1/0436/2010/6404/files/29215102507.pdf
    • https://cdn.shopify.com/s/files/1/0434/5564/3813/files/vizisuxafuledame.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_off00006ced.bin
188d9769d89f02a099b5400ff9b78595b9cfca772b4a2a049836e554a78a795d		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6CED 5148 bytes
font_01_sfnt_off00007e50.bin
1b0160938d58c26311eb4fbb293f570241f6ec4099db868b061eab0989e00ff5		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7E50 10312 bytes

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