Malicious PDF — malware analysis report

Static analysis result for SHA-256 d3253ec65a87fb42…

MALICIOUS

PDF

56.9 KB Created: 2020-08-30 06:12:21 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 8cdad86b862323be365c815345af5888 SHA-1: 2a206acf20e9e1ff20c21e94ce0038a5766a7718 SHA-256: d3253ec65a87fb42427ae34272ed754404b48f0e5ccc057eb19ec3e928898372
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 link to known malicious redirector infrastructure. The document body, though heavily corrupted, contains a URL that matches the malicious redirector. The presence of a link farm suggests an attempt to manipulate search engine results or distribute malicious content broadly. No scripts were extracted, limiting the analysis of direct execution capabilities.

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.club/wix?keyword=droites+parall%25C3%25A8les+cm1
    • https://cdn.shopify.com/s/files/1/0430/8110/5562/files/tonakevivoruxarasamujuzo.pdf
    • https://cdn.shopify.com/s/files/1/0429/5645/6095/files/games_naruto_mobile_android.pdf
    • https://cdn.shopify.com/s/files/1/0437/4393/6673/files/vepukejobodazan.pdf
    • https://cdn.shopify.com/s/files/1/0435/8488/0798/files/fairy_tail_2014_episode_87.pdf
    • https://static.usrfiles.com/ugd/b8c837_132eb013f89043e59db09a7000f93195.pdf
    • https://static.usrfiles.com/ugd/cd79e3_c43a02f06b6d455e8092ff4a6c3f57cd.pdf
    • https://static.usrfiles.com/ugd/c0b427_a37575df3e5d4eb180fde766dc4068d2.pdf
    • https://static.usrfiles.com/ugd/0511f5_d4f9452173494460b81a2f92748e35e1.pdf
    • https://static.usrfiles.com/ugd/7f46b5_0f6dfaba2dfb4bad9d0ea097047b50ca.pdf
    • https://static.usrfiles.com/ugd/b8c837_15216b0e15844e7fbff76eea20b523a7.pdf
    • https://static.usrfiles.com/ugd/6240f8_a17a1b87e83849e9bb0b485b5d19a44a.pdf
    • https://static.usrfiles.com/ugd/b8c837_b3ac721f6209430e97512b755d429ab6.pdf
    • https://static.usrfiles.com/ugd/0aab01_19c08b08d6184ad6ac25666bf1f14123.pdf
    • https://static.usrfiles.com/ugd/b8c837_04c8d2ed750348cc964112c5802ceda1.pdf
    • https://static.usrfiles.com/ugd/3b7182_4ad5387ca4bc464ca2e80148b9609cd6.pdf
    • https://static.usrfiles.com/ugd/b8c837_a52dcec19ad449e08cce8e75e85e1561.pdf
    • https://static.usrfiles.com/ugd/66c878_e66fe649a0c6463ea586d791a27f4526.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_off00007a47.bin
1bcec2f00c736fc7d57039009b75d1ab9a2cd86c733bf6b4e74c500c3418171e
pdf-font-stream PDF embedded font (sfnt) at offset 0x7A47 4956 bytes
font_01_sfnt_off00008ae2.bin
ff69a429755b66eaa420b4ef554910776c3e472e78ee3287da06ef3998af9cd5
pdf-font-stream PDF embedded font (sfnt) at offset 0x8AE2 11768 bytes
font_02_sfnt_off0000b05b.bin
0e8f0d2e150166c07e1f1f9dea5b840712ddc624e286be9fa9b2cf0989a436bf
pdf-font-stream PDF embedded font (sfnt) at offset 0xB05B 16424 bytes
font_03_sfnt_off0000c67e.bin
9f355172d696dda274cac500966718f112ce76951f19577ac4888987ea6471b2
pdf-font-stream PDF embedded font (sfnt) at offset 0xC67E 4324 bytes