Malicious PDF — malware analysis report

Static analysis result for SHA-256 e20cab83a7cf44bf…

MALICIOUS

PDF

52.6 KB Created: 2020-08-31 06:14:02 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: c1884abba0549f1d81a1294c3d7f30f2 SHA-1: 948517bda6fafc64c43f244bd8c1d992828d36ad SHA-256: e20cab83a7cf44bf8c8d42f8f374776b03af8c248a54b1fa499d2095e8dbd1b4
150 Risk Score

Malware Insights

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

The PDF file contains numerous embedded links, with one specifically pointing to a known malicious redirector. The document body, though heavily obfuscated, contains text suggesting it is a 'funeral mass booklet' and includes the malicious URL. This indicates a social engineering attempt to trick users into visiting a harmful site. The presence of multiple PDF links, many pointing to static.usrfiles.com, suggests a link farm used to obscure the ultimate destination or to improve search engine ranking for malicious content.

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/wix?keyword=livret+de+messe+enterrement+a+telech
    • https://static.usrfiles.com/ugd/01e791_b063dcc8456a4119a720d1538f8a8fa8.pdf
    • https://static.usrfiles.com/ugd/b8c837_4a646338c86f4a83885676201460208a.pdf
    • https://static.usrfiles.com/ugd/b98abb_acbc427a591c4a3c8598f58614c72cfe.pdf
    • https://static.usrfiles.com/ugd/0c4177_e2319408a0c74efc87bfc9d11245a814.pdf
    • https://static.usrfiles.com/ugd/b8c837_2bf05d33aec643fbaf93c37a4d577458.pdf
    • https://static.usrfiles.com/ugd/9f6a24_2c1ab77fa2934150947aa8745bad24d0.pdf
    • https://cdn.shopify.com/s/files/1/0432/3665/5259/files/ielts_10_test_4_reading_answers.pdf
    • https://cdn.shopify.com/s/files/1/0432/1394/7048/files/zipipulovafo.pdf
    • https://cdn.shopify.com/s/files/1/0433/5455/4533/files/nulufusuniduwurevupisawu.pdf
    • https://cdn.shopify.com/s/files/1/0440/3603/0629/files/trauma_cerrado_de_torax.pdf
    • https://static.usrfiles.com/ugd/ea2f88_27183e0420e64ad99301e19b1e30e5b6.pdf
    • https://static.usrfiles.com/ugd/b8c837_a309032ba28d4d289b36c7be125dabd7.pdf
    • https://static.usrfiles.com/ugd/edb4a7_41e06cde912f4ea99ccc9cce0fb9f669.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
font_00_sfnt_off00006a19.bin
b1e97016b0bc2751a4f1bf42338c9f79f26b9f14115122a870c2a54214a4bb4a		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6A19 5180 bytes
font_01_sfnt_off00007b81.bin
a36eee06fef6ce219692c4ec918276ac99413e4fd1e3666e4031624f9289d620		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7B81 1800 bytes
font_02_sfnt_off0000840e.bin
49445a759d47fff62a894bb979d165bf735fcde604b40e149a0cb4fcda66765f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x840E 13620 bytes
font_03_sfnt_off0000ada6.bin
028dbaa76d48ae99b02248bacea50134e27ed131f5dd39e25ac401de8961e19b		 pdf-font-stream PDF embedded font (sfnt) at offset 0xADA6 16312 bytes

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