Malicious PDF — malware analysis report

Static analysis result for SHA-256 9d62c07b240f8934…

MALICIOUS

PDF

39.7 KB Created: 2020-08-19 14:41:18 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 8ae5472fe45f9e86efc98daf852e471d SHA-1: 699a80ff804ed9b1190056d0cd8bcbb1a6925bb0 SHA-256: 9d62c07b240f8934e3820c8202b62505fd9ee438baf959267a9f9b1459328a6f
120 Risk Score

Malware Insights

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

The PDF contains a heuristic firing for a malicious redirector link, pointing to a URL that spoofs an Ofsted report. This link is intended to redirect users to malicious infrastructure. The document body and embedded links also indicate a large number of PDF links, suggesting a link farm designed for SEO manipulation or to host further malicious content. No scripts were extracted from this sample.

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=holland+house+infant+school+ofsted+report
    • http://files.yourownpathyoga.com/uploads/1/3/1/8/131871786/butidoveb.pdf
    • http://silofit.cpmchoicepropertymanagement.com/uploads/1/3/0/8/130874493/4859435.pdf
    • http://megim.pgoody.com/uploads/1/3/2/7/132712615/fopeto-dekirib-bikoripakurori-vegosaxib.pdf
    • http://winevi.keepitrealministriesd.org/uploads/1/3/1/1/131164250/nijova_vinobem_rufopatojusomuj.pdf
    • https://cdn.shopify.com/s/files/1/0433/6245/1611/files/ada_diabetes_2020_espaol.pdf
    • https://cdn.shopify.com/s/files/1/0430/4257/0402/files/14490283138.pdf
    • https://cdn.shopify.com/s/files/1/0429/7120/1695/files/tivivepofokofimidar.pdf
    • https://cdn.shopify.com/s/files/1/0447/4237/7623/files/kumalosedeno.pdf
    • https://cdn.shopify.com/s/files/1/0432/9363/8811/files/fepigenikozamudanejad.pdf
    • https://cdn.shopify.com/s/files/1/0437/3381/1351/files/buwatonukatoxi.pdf
    • https://cdn.shopify.com/s/files/1/0434/0521/3847/files/vawereku.pdf
    • https://cdn.shopify.com/s/files/1/0431/8501/2900/files/words_their_way_spelling_lists_5th_grade.pdf
    • https://cdn.shopify.com/s/files/1/0433/6805/4940/files/pdf_smaller_size_online_free.pdf
    • https://cdn.shopify.com/s/files/1/0432/9911/1070/files/alcohol_phenol_and_ether_short_notes.pdf
    • https://cdn.shopify.com/s/files/1/0431/0630/4153/files/giwuniwimogugi.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_off00005bd0.bin
4551282c1297b687fbdcd5d058efc68d6c0362fdbee20efeadd4e6d76559d130		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5BD0 5204 bytes
font_01_sfnt_off00006d73.bin
2962bc6695ea97231bb3fa81afe82fce09900da163d71c893b1600ba2f617685		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6D73 10692 bytes

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