Malicious PDF — malware analysis report

Static analysis result for SHA-256 b7f2e12ca5463801…

MALICIOUS

PDF

36.8 KB Created: 2020-08-31 18:45:09 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 0cde80f7fcb971e25d9cee0dd377bb7c SHA-1: b17f477b794432a5d0c92d060472d0df091de2c0 SHA-256: b7f2e12ca5463801ec01ad4832bd1dc4c968592e153dff1e346026a8dc069656
92 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell T1204.002 Malicious Link

The PDF contains embedded links, one of which, https://ttraff.cc/wix?keyword=cymatics+sheet+music, is flagged as a malicious redirector. The document body, though heavily obfuscated, contains text related to 'Cymatics sheet music' and references the malicious URL, suggesting a lure to a phishing or malware distribution site. The ML classifier also strongly indicated maliciousness.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

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.
  • 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=cymatics+sheet+music
    • https://static.usrfiles.com/ugd/0dcf4b_b5ebae33aeb64e9582702cb6b5facce9.pdf
    • https://static.usrfiles.com/ugd/4b874d_e4e637be8a4b42958982fcfc41c1a0bc.pdf
    • https://static.usrfiles.com/ugd/b8c837_9e555a8fb9454e799ab6494884fca9d0.pdf
    • https://static.usrfiles.com/ugd/ab059d_6f51a56a4ea949a592abb22b835dc50a.pdf
    • https://cdn.shopify.com/s/files/1/0430/2051/7537/files/tlviseur_jvc_lt-55vu73m_hdr.pdf
    • https://cdn.shopify.com/s/files/1/0430/2100/9053/files/dlink_wbr-1310_default_wifi_password.pdf
    • https://cdn.shopify.com/s/files/1/0429/6186/2810/files/54003233749.pdf
    • https://cdn.shopify.com/s/files/1/0432/0319/9136/files/mixebubes.pdf
    • https://cdn.shopify.com/s/files/1/0437/6435/1130/files/70694832310.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_off000045da.bin
34dd41964a2402eadcb5475c4147428947c3cddff9e6c274bf67fda4abec89e9		 pdf-font-stream PDF embedded font (sfnt) at offset 0x45DA 4916 bytes
font_01_sfnt_off00005670.bin
f5403ba8b081b4d19cd501b767b634f23ae801394aa96514c244da5a3038a446		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5670 15212 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.