Malicious PDF — malware analysis report

Static analysis result for SHA-256 b5b94770d37c998c…

MALICIOUS

PDF

33.1 KB Created: 2020-08-31 10:42:44 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 4e01a9fd42ce93589113738877d7d57d SHA-1: 65cef248472e2427acbdec897b328ea010185028 SHA-256: b5b94770d37c998cb11e3320ccf4e3292a4fcad5afa9c319916959b66e377920
120 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF file contains numerous embedded links, with a critical heuristic firing indicating a malicious redirector link to 'https://ttraff.ru/wix?keyword=the+sheep+brain+a+basic+guide'. Another critical heuristic identified a PDF link farm, with the first URL pointing to 'https://cdn.shopify.com/s/files/1/0432/6529/4504/files/mizigebikologogodovot.pdf'. The document body, though heavily obfuscated, contains these URLs, suggesting a social engineering attempt to direct 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/wix?keyword=the+sheep+brain+a+basic+guide
    • https://cdn.shopify.com/s/files/1/0432/6529/4504/files/mizigebikologogodovot.pdf
    • https://cdn.shopify.com/s/files/1/0435/8524/1256/files/83463554449.pdf
    • https://cdn.shopify.com/s/files/1/0433/0484/5465/files/acidit_titrable.pdf
    • https://cdn.shopify.com/s/files/1/0464/8678/2104/files/jumazojuneputigot.pdf
    • https://cdn.shopify.com/s/files/1/0440/6483/3686/files/marketing_concepts_notes.pdf
    • https://cdn.shopify.com/s/files/1/0435/3828/4696/files/residents_guide_to_ambulatory_care.pdf
    • https://cdn.shopify.com/s/files/1/0429/1310/4035/files/bivajubeniraxolarekubow.pdf
    • https://cdn.shopify.com/s/files/1/0433/8260/3927/files/43008570919.pdf
    • https://cdn.shopify.com/s/files/1/0435/5905/9615/files/greater_london_bus_map.pdf
    • https://cdn.shopify.com/s/files/1/0427/9864/5404/files/duwumubevuj.pdf
    • https://cdn.shopify.com/s/files/1/0432/0513/2445/files/vebobazuwi.pdf
    • https://cdn.shopify.com/s/files/1/0434/8307/0630/files/cool_shoes_minecraft.pdf
    • https://cdn.shopify.com/s/files/1/0429/5157/3657/files/viva_la_bam.pdf
    • https://cdn.shopify.com/s/files/1/0462/7254/4917/files/sims_4_wicked_woohoo_mod_download_ps4.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_off00004468.bin
9f2e689d69c4a904ce7bec69466f9261dc954bb8dd152c6402ae9c61a7954711		 pdf-font-stream PDF embedded font (sfnt) at offset 0x4468 5392 bytes
font_01_sfnt_off000056a5.bin
2e8ea9b4f41a2d917a2c473750e019f434f6cb5b419de69c00893702e13a7ebd		 pdf-font-stream PDF embedded font (sfnt) at offset 0x56A5 9692 bytes

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