Malicious PDF — malware analysis report

Static analysis result for SHA-256 9c006036b265ba50…

MALICIOUS

PDF

42.7 KB Created: 2020-08-30 09:49:57 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 59ff348c190d951a46223e5097a42f30 SHA-1: fe7e584ec1436dad94ad56b040276d6e5f6fa074 SHA-256: 9c006036b265ba507eb01902c2300ac8eef3e20f1cb4579581c52cf93e7cf755
168 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link, which is further supported by the presence of a link farm and instructions to disable security software. The document body, though heavily obfuscated, contains text related to cracking software and the malicious URL. The primary malicious URL is https://ttraff.ru/wix?keyword=abbyy+finereader+12+professional+crack, which likely leads to a download of malware disguised as cracked software.

Heuristics 5

  • 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.
  • Security software disable instruction high SE_SECURITY_BYPASS
    Document instructs the user to disable antivirus or security software — unusual for ordinary documents and high-risk in an unsolicited file
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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=abbyy+finereader+12+professional+crack
    • https://static.usrfiles.com/ugd/b8c837_910e7a75e1584e87aaf707987ae68d13.pdf
    • https://static.usrfiles.com/ugd/ea2f88_8c10f132d71243e194bf91a1af04b929.pdf
    • https://static.usrfiles.com/ugd/6f53d7_544095b22aa24e88b763e01137a262e3.pdf
    • https://static.usrfiles.com/ugd/eaf48f_e565234ff34540c7bf71c650cd5b7af8.pdf
    • https://static.usrfiles.com/ugd/ae15ca_a1ff258f58564cd3abc5f4e74a243216.pdf
    • https://cdn.shopify.com/s/files/1/0435/7593/5135/files/zesofogujaf.pdf
    • https://cdn.shopify.com/s/files/1/0437/6294/2101/files/vopamofo.pdf
    • https://static.usrfiles.com/ugd/b8c837_df087bd10e5f419e8aa4f439edae7421.pdf
    • https://static.usrfiles.com/ugd/cf79db_fe67f3a503624e9ea8f89cfa396f3c49.pdf
    • https://static.usrfiles.com/ugd/b8c837_c26904b176ba4d1dbcdc386cbf40fb12.pdf
    • https://static.usrfiles.com/ugd/158fb9_cf2b389cf0314c4fa198f24793d91449.pdf
    • https://static.usrfiles.com/ugd/b8c837_1cbe327c883940a3a231bbbf5d79917e.pdf
    • https://static.usrfiles.com/ugd/b8c837_f27b1b26760645159a8becefc4c798b6.pdf
    • https://static.usrfiles.com/ugd/8ab72e_30a81815fb5846f89e9d16c5a644b3e2.pdf
    • https://static.usrfiles.com/ugd/b8c837_fcbf6799f44749babae255cc07340476.pdf
    • https://static.usrfiles.com/ugd/9cb927_df2eecba7fbf481e8bdcd71698d0317d.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_off00005a85.bin
b46544acd4ea26ae5287471bd7b5f5b623d500317aebd7381fa9fc390ab86c21		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5A85 5336 bytes
font_01_sfnt_off00006cb2.bin
99a38b850433b79e8b9a57eb14bd9ec3a1942c8ae618f69fadb29cea7929bb88		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6CB2 10284 bytes
font_02_sfnt_off00008f8f.bin
9f355172d696dda274cac500966718f112ce76951f19577ac4888987ea6471b2		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8F8F 4324 bytes

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