Malicious PDF — malware analysis report

Static analysis result for SHA-256 d24a87335ab58bb5…

MALICIOUS

PDF

41.6 KB Created: 2020-09-09 22:16:06 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 850d0ca8e755f7a9bfa3aa1022ec1d91 SHA-1: e2c9f7eca854744f93dd639846337bc5c84953c1 SHA-256: d24a87335ab58bb507c0284f8cdc96377812ed622c462015190eb4f5bd057e17
120 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded links, many of which point to a link farm designed to manipulate search engine results. One of the primary links directs to a known malicious redirector. The document body, though heavily obfuscated, contains the malicious URL and appears to be a lure for potentially harmful 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.club/wix?keyword=ijazat+video+song++hd
    • http://jobobot.cornucopia-vintage.com/uploads/1/3/0/9/130969497/a9fca394.pdf
    • http://zunedujud.bookandsword.net/uploads/1/3/1/3/131383283/tamew_vusadewefo_gaxatiwed.pdf
    • http://files.mpmoochelleskidkare.com/uploads/1/3/0/8/130873921/248a6747a4475.pdf
    • https://cdn.shopify.com/s/files/1/0432/6480/2982/files/fowuxikagewivig.pdf
    • https://cdn.shopify.com/s/files/1/0427/7708/4070/files/23786421683.pdf
    • https://cdn.shopify.com/s/files/1/0432/0306/8068/files/56194013212.pdf
    • https://static.usrfiles.com/ugd/bd1fc0_bda2aca0ec394829b9e281ab71b00bbe.pdf
    • https://static.usrfiles.com/ugd/6116da_6e43e53a7bcb47a098e35760cb8dfe3e.pdf
    • https://static.usrfiles.com/ugd/3b5dd9_c1ea1b2a5c174d509252d6420f3bddfa.pdf
    • https://static.usrfiles.com/ugd/c7a620_3b41a7fd95934ba790f7f6bf8e0790c4.pdf
    • https://static.usrfiles.com/ugd/956c05_de2f29acff7b48a7ad3c6316ead07f42.pdf
    • https://static.usrfiles.com/ugd/1decf9_2939a8090f644161903de68e8aaf7cfa.pdf
    • https://static.usrfiles.com/ugd/8127dd_3a50c1fec6d74f3583b507411915b209.pdf
    • https://static.usrfiles.com/ugd/a44510_afaccf39bdb24581adc7e4d3f6f3d84a.pdf
    • https://static.usrfiles.com/ugd/735189_61a1815f59c5429cbf43fc4be0375a56.pdf
    • https://static.usrfiles.com/ugd/b6bf5b_2c493359fbcf42d8a4d05ddbebd3788f.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000046e7.bin
4bd92569417649c0a8774612fcd76b81c7edfb36b3312b27b5c0d0758d4ea7b2
pdf-font-stream PDF embedded font (sfnt) at offset 0x46E7 5084 bytes
font_01_sfnt_off00005846.bin
59ed76176cb15faed81d59aa01313aa5d50ecc30216e658dbe40f82a087879b1
pdf-font-stream PDF embedded font (sfnt) at offset 0x5846 9824 bytes
font_02_sfnt_off00007a3d.bin
dabf0ccc451caf4864c9b22ca91318a92e8f625b469dd0561edf59b451c7a792
pdf-font-stream PDF embedded font (sfnt) at offset 0x7A3D 18776 bytes