Malicious PDF — malware analysis report

Static analysis result for SHA-256 a2178168b89a34cd…

MALICIOUS

PDF

64.1 KB Created: 2020-08-03 07:30:37 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 7b39831403c5eef0311874246581f36b SHA-1: bdf24625abddb346ce1593fbe283d15c953e0e2b SHA-256: a2178168b89a34cdf5d02154c53ec8a273f22e41d29eaf2edb96241b74a954df
120 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded links, identified as a PDF link farm. One of these links, 'https://ttraff.cc/pify?keyword=cranberries+zombie+meaning', is a known malicious redirector. The document body, though heavily obfuscated, contains this URL and other PDF links, suggesting a lure to external content. The presence of a malicious redirector indicates an attempt to lead the user to a malicious site, likely for phishing or malware delivery.

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/pify?keyword=cranberries+zombie+meaning
    • http://files.davenportbasketball.com/uploads/1/3/1/8/131871705/098ba87.pdf
    • http://files.mnesa.com/uploads/1/3/1/0/131069781/zitebagowe.pdf
    • http://files.bluebridgelifescience.com/uploads/1/3/1/6/131637546/tiwomevukibexetox.pdf
    • http://files.9-r.com.au/uploads/1/3/1/4/131454316/82a2f2dd.pdf
    • https://cdn.shopify.com/s/files/1/0428/1945/3095/files/poloninivujamegoxubi.pdf
    • https://cdn.shopify.com/s/files/1/0437/6153/3085/files/47547061010.pdf
    • https://cdn.shopify.com/s/files/1/0436/0595/0626/files/vinudagedowemewep.pdf
    • https://cdn.shopify.com/s/files/1/0427/4677/3660/files/gmat_official_guide_2016_free_download.pdf
    • https://cdn.shopify.com/s/files/1/0434/7261/7637/files/bixewunu.pdf
    • https://cdn.shopify.com/s/files/1/0431/3061/8011/files/piwutuzomabunapotexelol.pdf
    • https://cdn.shopify.com/s/files/1/0445/7719/4148/files/college_physics_3rd_edition.pdf
    • https://cdn.shopify.com/s/files/1/0433/4141/4552/files/46080818435.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/mavadusuwavofemikedoj.pdf
    • https://cdn.shopify.com/s/files/1/0431/4624/8358/files/fisefugotolowezivop.pdf
    • https://cdn.shopify.com/s/files/1/0429/9712/1178/files/xemit.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_off0000bd59.bin
1d8247e278ed36cb2cbf39d86521fb708e62d6683b1bb03e075abb6e41d07e84		 pdf-font-stream PDF embedded font (sfnt) at offset 0xBD59 5068 bytes
font_01_sfnt_off0000ce83.bin
a68f5065322d5dfb83439322a52a66062978c58ad1fa5c828c918b68c9e0f6bc		 pdf-font-stream PDF embedded font (sfnt) at offset 0xCE83 10752 bytes

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