Malicious PDF — malware analysis report

Static analysis result for SHA-256 a6eb4f447c1c7772…

MALICIOUS

PDF

51.2 KB Created: 2020-08-27 22:13:24 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 800285f9416add2e8d5961c71852b0cc SHA-1: 861133653ee6188c10e852d26cea9aa36943d9b7 SHA-256: a6eb4f447c1c77728a43414bddd39d353a6ce798d891296764f76b19aeb65976
120 Risk Score

Malware Insights

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

The PDF file contains a heuristic firing indicating it is a malicious redirector, linking to a known malicious URL. It also exhibits characteristics of a PDF link farm, with numerous embedded URLs. The document body contains the malicious URL and several other unknown URLs, suggesting a phishing or scam attempt to redirect users to malicious content.

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=iso+45001+2018
    • http://wopebedab.theflorecerproject.com/uploads/1/3/1/3/131379478/masedejasurekawuwe.pdf
    • http://vulum.nesspressnc.com/uploads/1/3/2/7/132740880/besilabukodi.pdf
    • http://daxufuzum.menomoniesaddleclub.org/uploads/1/3/0/7/130776659/gapozakenudi.pdf
    • https://cdn.shopify.com/s/files/1/0431/5670/1346/files/fezimamodilase.pdf
    • https://cdn.shopify.com/s/files/1/0428/5667/7543/files/organic_chemistry_7th_edition_brown.pdf
    • https://cdn.shopify.com/s/files/1/0429/6779/3817/files/bosch_filter_cross_reference.pdf
    • https://cdn.shopify.com/s/files/1/0431/2891/4074/files/rameserevinuwilitixiregow.pdf
    • https://cdn.shopify.com/s/files/1/0435/5407/8871/files/neumonia_pediatria_2017_colombia.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/92313200312.pdf
    • https://cdn.shopify.com/s/files/1/0434/1645/3272/files/71992602217.pdf
    • https://cdn.shopify.com/s/files/1/0430/9535/9641/files/janupanalasex.pdf
    • https://cdn.shopify.com/s/files/1/0437/5805/9674/files/riesgo_pais_definicion.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006d82.bin
54b0f61a14179d8090b71e29bd083ce9c7cdd77bc5a88750bb37f5c5c1617606		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6D82 5008 bytes
font_01_sfnt_off00007eb7.bin
db7bfd61095733302f98e5606fb70e236c0cd3a96073937fd0b39bdf15605f1f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7EB7 13024 bytes
font_02_sfnt_off0000a9f3.bin
c47408789cc35ad89acaf15b8a66b974f867308cd81c8bc9a63c460cf5af0658		 pdf-font-stream PDF embedded font (sfnt) at offset 0xA9F3 16432 bytes

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