Malicious PDF — malware analysis report

Static analysis result for SHA-256 95416f4fbdd10d0f…

MALICIOUS

PDF

36.9 KB Created: 2020-08-30 21:19:09 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 00426b9f4162b1e2aeda11e224209465 SHA-1: cc6029de2ff7d857adaffb1a3b6d6d6045745566 SHA-256: 95416f4fbdd10d0f4e942c3f9218be56f7c932d615f6dd52145469e00d8d8a71
150 Risk Score

Malware Insights

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

The PDF document was flagged by multiple critical heuristics for containing malicious redirector links and a link farm. The embedded URL 'https://ttraff.cc/wix?keyword=conversaciones+con+dios+pdf+4' is identified as a malicious redirector. The document body, though heavily obfuscated, also contains this URL and numerous other links pointing to external resources, consistent with a phishing or malware distribution lure.

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.
  • 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.cc/wix?keyword=conversaciones+con+dios+pdf+4
    • https://static.usrfiles.com/ugd/b8c837_6dc7f39e312144e18ce24ed2f66e7f4e.pdf
    • https://static.usrfiles.com/ugd/7f16bd_febd0121ec394504836fdb5ca5f8b0ee.pdf
    • https://static.usrfiles.com/ugd/bf650e_0ce73d4fd97d42daa9950154c783cbb5.pdf
    • https://static.usrfiles.com/ugd/b8c837_d50a6f3fbc174090b007423b66107f7a.pdf
    • https://static.usrfiles.com/ugd/41a0b6_6c2055ef1e374d6c9f56d866e162cbc5.pdf
    • https://static.usrfiles.com/ugd/b8c837_644cac6e97d74320b30df440a161a425.pdf
    • https://cdn.shopify.com/s/files/1/0430/0380/5847/files/cheat_engine_6._5_for_windows_10.pdf
    • https://cdn.shopify.com/s/files/1/0434/2795/4853/files/viking_pop_up_camper_owners_manual.pdf
    • https://cdn.shopify.com/s/files/1/0435/2468/5975/files/21768932387.pdf
    • https://cdn.shopify.com/s/files/1/0430/1455/3763/files/56532367834.pdf
    • https://cdn.shopify.com/s/files/1/0440/6591/5032/files/trove_chaos_core.pdf
    • https://cdn.shopify.com/s/files/1/0430/7383/1072/files/74928253659.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_off00005007.bin
6a10312503dd9e3ee7ae9459d6eac6b17ce4b7d9e418f01e42e03aceaf6db838
pdf-font-stream PDF embedded font (sfnt) at offset 0x5007 5172 bytes
font_01_sfnt_off000061b3.bin
74e90fbcf98d63cf604d217db805604738a3bf95f107f294309119c42d9f2af7
pdf-font-stream PDF embedded font (sfnt) at offset 0x61B3 11060 bytes