Malicious PDF — malware analysis report

Static analysis result for SHA-256 490012741d8ec9c6…

MALICIOUS

PDF

63.3 KB Created: 2020-08-30 00:02:54 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 5be8878ef2261e4f8793805d0c0ce00d SHA-1: 551a6b8ea90d10d149b7bbae9166fa6d38e2630f SHA-256: 490012741d8ec9c69d224413008626218ffa83e9a2d96a2d1e6466bddb8366f5
120 Risk Score

Malware Insights

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

The PDF file contains numerous embedded links, a significant number of which point to external resources. One of these links, https://ttraff.cc/wix?keyword=juz+30+pdf, is identified as a malicious redirector. The presence of a link farm and a malicious redirector suggests the document's primary purpose is to direct users to potentially harmful websites, likely for phishing or malware distribution.

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=juz+30+pdf
    • https://static.usrfiles.com/ugd/c4ccc4_7ac2150a112843a2a587ed983198e261.pdf
    • https://static.usrfiles.com/ugd/2ca09c_9a7113cc2ee9422694688bc587e82824.pdf
    • https://static.usrfiles.com/ugd/b8c837_d72bf1bb1da8404abea58e9d5f721bac.pdf
    • https://cdn.shopify.com/s/files/1/0451/1298/3717/files/adelanto_weather_hourly.pdf
    • https://cdn.shopify.com/s/files/1/0430/9028/0609/files/wajutobezilenojifaxife.pdf
    • https://cdn.shopify.com/s/files/1/0434/6196/8025/files/biweledagetimi.pdf
    • https://cdn.shopify.com/s/files/1/0437/4944/1688/files/nofifirawadetabigufadawu.pdf
    • https://cdn.shopify.com/s/files/1/0435/3202/6008/files/fcps_part_1_study_guide.pdf
    • https://cdn.shopify.com/s/files/1/0432/1938/6526/files/84959170188.pdf
    • https://cdn.shopify.com/s/files/1/0439/6512/0670/files/fundamentals_of_corporate_finance_2nd_edition.pdf
    • https://static.usrfiles.com/ugd/0dd040_5e8eede203dc4663886b9c7adb8d71ec.pdf
    • https://static.usrfiles.com/ugd/b8c837_db0f21ed758f4bd0b9a393ee819e4285.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 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_007_off0000c176.bin
6c23957f7baab7fc14cff37ca01c2f9ad9bb03ed262f64d3b5e45e4948692743		 decompressed-pdf-stream PDF FlateDecoded stream at offset 0xC176 25760 bytes
font_00_sfnt_off00007746.bin
574e0bee32b1353b16af7f28d40bcb1392f5798e175e3c66cdaff0abcd9f3dae		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7746 4864 bytes
font_01_sfnt_off000087fc.bin
8099925046ab4cda7020a77b41226ba84377f1a89300336ec1572ec1fe6acf1f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x87FC 4032 bytes
font_02_sfnt_off000094ba.bin
896bff54c7e895c055c979799332f8b70d5d33f0aca625912b5b9049992439b3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x94BA 14840 bytes

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