Malicious PDF — malware analysis report

Static analysis result for SHA-256 97983ba86017c1ae…

MALICIOUS

PDF

42.4 KB Created: 2020-08-30 19:08:37 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 7edea13d632a11cbcd11d747c9f0a1f4 SHA-1: 7b49ef3b7322a3f31b0fa62d3e5b0d3fcc274e8a SHA-256: 97983ba86017c1aec23311c9008cd5d2ddcc73044fe37265ddd91f412aa19805
120 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.001 Malicious Link

The PDF file contains a critical heuristic firing for a malicious redirector link, pointing to 'https://ttraff.com/wix?keyword=lingashtakam+telugu+audio+song'. This indicates a phishing or social engineering attempt to redirect the user to a malicious site. The document also contains a large number of embedded links, many hosted on cdn.shopify.com, which is flagged as a link farm. The primary malicious URL is the most critical IOC.

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.com/wix?keyword=lingashtakam+telugu+audio+song
    • https://cdn.shopify.com/s/files/1/0433/0101/1614/files/zolivox.pdf
    • https://cdn.shopify.com/s/files/1/0434/0632/7957/files/rusekudelidasanovikumaze.pdf
    • https://cdn.shopify.com/s/files/1/0433/4141/4552/files/xoviwozori.pdf
    • https://cdn.shopify.com/s/files/1/0452/3678/1216/files/firagozedupo.pdf
    • https://cdn.shopify.com/s/files/1/0430/0741/0329/files/xuletifomog.pdf
    • https://static.usrfiles.com/ugd/b8c837_cd8cb8e1c4cd4295b0317805ad0c1e85.pdf
    • https://static.usrfiles.com/ugd/7d21c0_b82f5f348c504f6ab723c2db0bd9aa1a.pdf
    • https://static.usrfiles.com/ugd/b8c837_012eaa64d26d44bcacde788e94d234b1.pdf
    • https://static.usrfiles.com/ugd/576447_fe57efdf1e89460189124f80b378fc4c.pdf
    • https://static.usrfiles.com/ugd/837d34_97e1aa1a235d45d094f9e7fc2018f8a1.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_off000051bf.bin
43398a7909724e5348b929f399f0dffb3163700292ff2a8b36063732c684aea6		 pdf-font-stream PDF embedded font (sfnt) at offset 0x51BF 5028 bytes
font_01_sfnt_off000062ac.bin
cf342616a996b140a68a415c44f0788f5f1b8ca2af4098f911e9118ad3b4a669		 pdf-font-stream PDF embedded font (sfnt) at offset 0x62AC 13904 bytes
font_02_sfnt_off00008f27.bin
a542ec26cea93e049a2e27cd59b1347dd9bbdea13775fd7b822b3c2b3136116f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8F27 4324 bytes

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