Malicious PDF — malware analysis report

Static analysis result for SHA-256 e409e5fe40fcc829…

MALICIOUS

PDF

44.0 KB Created: 2020-08-04 04:19:35 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 975102c8cbd9535d906e1fbd6dfdca0e SHA-1: 6bbbf42e61742a7b249d4ae68ce3fd2b00a0a1a9 SHA-256: e409e5fe40fcc829bcc0b771061b108597a2a263f73630f2a27ea57207c28354
150 Risk Score

Malware Insights

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

The PDF contains a large number of embedded links, with one specifically pointing to a known malicious redirector. The heuristic firings indicate this is a PDF link farm, likely intended to manipulate search engine results or redirect users to malicious content. No scripts were extracted, but the primary attack vector appears to be the malicious redirection via embedded links.

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.ru/pify?keyword=manual+de+bioconstru%25C3%25A7%25C3%25A3o+pdf
    • http://files.heartnhands.org/uploads/1/3/0/9/130969357/vixobejim_pofafibulixos_bomumutenijaj.pdf
    • http://files.fbckilbourne.com/uploads/1/3/1/3/131398323/jebujoxupibibi_bosotal.pdf
    • http://files.frufruandfeathers.com/uploads/1/3/0/7/130739183/34486212.pdf
    • http://files.ikhenkle.com/uploads/1/3/1/3/131384660/a55d645034.pdf
    • http://files.asensioresearch.com/uploads/1/3/1/4/131438539/d5e3bdb.pdf
    • https://cdn.shopify.com/s/files/1/0430/6750/6841/files/47709310923.pdf
    • https://cdn.shopify.com/s/files/1/0430/5253/1869/files/juxeditepudazobojufazuwa.pdf
    • https://cdn.shopify.com/s/files/1/0434/4155/3575/files/wiggle_after_effects.pdf
    • https://cdn.shopify.com/s/files/1/0434/1048/9496/files/livre_pour_apprendre_la_langue_le_franais.pdf
    • https://cdn.shopify.com/s/files/1/0427/7701/8524/files/32002385669.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/riwemabosemuridaredexe.pdf
    • https://cdn.shopify.com/s/files/1/0430/9896/4117/files/48993539191.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/rasebiv.pdf
    • https://cdn.shopify.com/s/files/1/0428/1712/6563/files/nazuximusijimiwarav.pdf
    • https://cdn.shopify.com/s/files/1/0430/7399/4905/files/salazebululufit.pdf
    • https://cdn.shopify.com/s/files/1/0431/3789/2509/files/43484006452.pdf
    • https://cdn.shopify.com/s/files/1/0436/9943/7721/files/simcity_cheat_code.pdf
    • https://cdn.shopify.com/s/files/1/0427/6515/6508/files/ngrok_command_not_found.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/
    • https://cdn.shopify.com/s/files/1/0427/6515/6508/files/ngrok_command_not_found

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006905.bin
f5e89a94dd202f4854652bd27e33afcb7895ff5dfe60785f450689286d61a275		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6905 5792 bytes
font_01_sfnt_off00007bec.bin
ff5e3ab300824fc37c230da6f756396de490c1c098d63aad4b15acecf8832c2d		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7BEC 12072 bytes

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