Malicious PDF — malware analysis report

Static analysis result for SHA-256 cce0ab8c58ea02a7…

MALICIOUS

PDF

35.2 KB Created: 2020-08-30 04:39:58 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 3895e0e39839f4bb743086f012556979 SHA-1: a6d0fd530deb41179151184290291cf4286c2da0 SHA-256: cce0ab8c58ea02a7dc20552a2ee535e5f156dc9e0ea286b87797e1d8556c35d1
152 Risk Score

Malware Insights

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

The PDF contains embedded links, one of which, 'https://ttraff.me/wix?keyword=protesis+parcial+removible+mccracken+pdf', is flagged as a malicious redirector. The document body, though heavily obfuscated, also contains this URL and other links to PDF files hosted on static.usrfiles.com. The presence of a malicious redirector suggests an attempt to lead the user to a malicious site, likely for further exploitation or credential harvesting. The ML classifier also strongly indicated maliciousness.

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.me/wix?keyword=protesis+parcial+removible+mccracken+pdf
    • http://fancli.com/1a4pqr
    • https://static.usrfiles.com/ugd/b8c837_3ef50415c0cc45869f8709e6938f417d.pdf
    • https://static.usrfiles.com/ugd/b88e3d_c2242df99bcf41f3891ecdf450a1ee83.pdf
    • https://static.usrfiles.com/ugd/b8c837_5c9f39ed0de14c4eb5c44c0f4445f9c1.pdf
    • https://static.usrfiles.com/ugd/a43ec6_687e4fa0409c4008b569ae327463e192.pdf
    • https://static.usrfiles.com/ugd/b8c837_476221b7c4e242638120e367dd5baaa4.pdf
    • https://cdn.shopify.com/s/files/1/0429/6625/3724/files/dokalukek.pdf
    • https://cdn.shopify.com/s/files/1/0431/1980/4567/files/bikram_yoga_video.pdf
    • https://cdn.shopify.com/s/files/1/0433/8669/9925/files/jenibupebaxuni.pdf
    • https://cdn.shopify.com/s/files/1/0432/8806/8254/files/lugorareleva.pdf
    • https://cdn.shopify.com/s/files/1/0430/2487/5674/files/answering_machine_meaning_in_tamil.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_off00004a82.bin
afb2e10a1a485603849bf703f26f8b07e425e454fb1d504b045161d396ff0676		 pdf-font-stream PDF embedded font (sfnt) at offset 0x4A82 5568 bytes
font_01_sfnt_off00005d57.bin
90bd7ec330120c1bbf7326e1616acb9037770dd632b1595b6fe883db59cb96c2		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5D57 10212 bytes

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