Malicious PDF — malware analysis report

Static analysis result for SHA-256 bcc489e88113cf5b…

MALICIOUS

PDF

39.6 KB Created: 2020-08-02 13:24:47 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 9835e3cc834cfc488753f3d66e059373 SHA-1: 73eb59e55abf98eb02d3b1000892c9f2bc422698 SHA-256: bcc489e88113cf5b2eb4ffa2b34cebb80b4ddff17541a147fe6bedb32d361e5e
150 Risk Score

Malware Insights

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

The PDF contains a malicious redirector link disguised as a solution for a 'League of Legends' issue on Mac. The document body and heuristics indicate a social engineering lure to trick users into clicking the malicious URL. The PDF also contains a large number of links to other PDFs, likely for SEO manipulation or to host further 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.cc/pify?keyword=league+of+legends+won%2527+t+open+mac
    • http://files.otherworldstables.com/uploads/1/3/2/6/132696483/xonafol-sigisasupatepo.pdf
    • http://files.stfrancisrutherfordton.org/uploads/1/3/1/4/131453588/jeruxe.pdf
    • http://files.davewaite.info/uploads/1/3/1/0/131069886/kuxojipojeb_watijumox_jifebase_mowib.pdf
    • https://cdn.shopify.com/s/files/1/0428/4760/0796/files/95209390811.pdf
    • https://cdn.shopify.com/s/files/1/0431/0961/3725/files/62909252106.pdf
    • https://cdn.shopify.com/s/files/1/0435/4749/2506/files/putakizolojifikogulapur.pdf
    • https://cdn.shopify.com/s/files/1/0429/8316/2019/files/jereridija.pdf
    • https://cdn.shopify.com/s/files/1/0434/1510/9794/files/beposixodivonomoni.pdf
    • https://cdn.shopify.com/s/files/1/0436/1856/6306/files/rulemojegixirusuza.pdf
    • https://cdn.shopify.com/s/files/1/0431/5450/5882/files/36966407008.pdf
    • https://cdn.shopify.com/s/files/1/0431/1898/5370/files/83388945538.pdf
    • https://cdn.shopify.com/s/files/1/0432/3403/3824/files/kasodoram.pdf
    • https://cdn.shopify.com/s/files/1/0433/2745/5382/files/lubugokojozed.pdf
    • https://cdn.shopify.com/s/files/1/0437/3282/8314/files/pr_cover_letter.pdf
    • https://cdn.shopify.com/s/files/1/0429/2768/5799/files/fowunozumolenamotezew.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00005db1.bin
0d074ecd74f9031a3a8454ee3818a8f374b16bb70852c2a2627d3f7f49eb5568
pdf-font-stream PDF embedded font (sfnt) at offset 0x5DB1 5444 bytes
font_01_sfnt_off00007052.bin
d13911fbb11fc8a3c6519d90f0c3021b1dd6a60317740000686dae2cde9bd038
pdf-font-stream PDF embedded font (sfnt) at offset 0x7052 9800 bytes