Malicious PDF — malware analysis report

Static analysis result for SHA-256 6af64994c3d644ad…

MALICIOUS

PDF

46.4 KB Created: 2020-08-31 13:28:07 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: fc123b1608ee71ab774210570a20ed1a SHA-1: b7781abbe6106c101f00e7809c494d9a0711db21 SHA-256: 6af64994c3d644ad905854947f3aae735d7247e66e3f5115aeabcc5d9798a268
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF file contains a malicious redirector link and a large number of external PDF links, suggesting an attempt to drive traffic to malicious infrastructure. The document body, though heavily obfuscated, contains the redirector URL and appears to be a lure related to sales techniques. The presence of a password-protected archive lure heuristic indicates a common tactic for evading initial security scans.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 5

  • 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.
  • Password-protected archive handoff high SE_PASSWORD_ARCHIVE_LURE
    Document gives password instructions for an archive or attachment — often used to keep payloads encrypted until after gateway scanning
  • 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=tecnicas+pnl+para+vender
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://www.daltonmaag.com/
    • https://static.usrfiles.com/ugd/b8c837_f7611be48a7a4df19e2892168bd938e0.pdf
    • https://static.usrfiles.com/ugd/d94ae5_4c5f95098f644542b3e04f9c04201ab9.pdf
    • https://static.usrfiles.com/ugd/599026_e1eae4434cd9459ea47bed528ed856db.pdf
    • https://static.usrfiles.com/ugd/b8c837_650183f1d51f413196dcc08892f593b3.pdf
    • https://cdn.shopify.com/s/files/1/0438/1782/8512/files/58123227759.pdf
    • https://cdn.shopify.com/s/files/1/0432/2400/6823/files/resistance_band_exercises_for_legs_and_glutes.pdf
    • https://static.usrfiles.com/ugd/b8c837_c8b5fbe519dd4d489f77557477427c74.pdf
    • https://static.usrfiles.com/ugd/7ef0dc_7a8ec4af82a248349ef9a5f82911a313.pdf
    • https://static.usrfiles.com/ugd/b8c837_f3cddb0cad2f4dfdb061d0873098eabd.pdf
    • https://static.usrfiles.com/ugd/b8c837_fec1fbf942ba4a808d1d1c814c909eef.pdf
    • https://static.usrfiles.com/ugd/c0b427_2919cb0b914f480495417556b93ab4d9.pdf
    • https://static.usrfiles.com/ugd/fef806_a0852cc4a12e4f32b71c9a602e9454b6.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/
    • http://scripts.sil.org/OFL

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000695c.bin
72909f379fd5f1899fe0d4926919a6fc11ff089951e7ecb4d3c10085883891c5		 pdf-font-stream PDF embedded font (sfnt) at offset 0x695C 4676 bytes
font_01_sfnt_off00007936.bin
8724ea22b6cbfdfb869a3800baab00dad1f45a9ef30b1b33654090070145cf22		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7936 11120 bytes
font_02_sfnt_off00009d55.bin
a542ec26cea93e049a2e27cd59b1347dd9bbdea13775fd7b822b3c2b3136116f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x9D55 4324 bytes

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