Malicious PDF — malware analysis report

Static analysis result for SHA-256 d01c42497767a105…

MALICIOUS

PDF

45.0 KB Created: 2020-09-17 19:38:33 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 4c71b0c7ec6fd0b2d94dc0b4d25955be SHA-1: 9d95c7979a0cb5aef743fc536ae38a8e9f11f855 SHA-256: d01c42497767a1054afdb6495da8a846f0d96ad0a2bac16e3a8ab3b68c13d127
120 Risk Score

Malware Insights

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

The PDF contains a mass of external links, masquerading as a sociology exam answer key, to a redirector URL. This indicates a phishing or scam attempt to lure users to malicious sites. The PDF_MALICIOUS_REDIRECTOR_LINK heuristic firing confirms the redirector is known malicious infrastructure.

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.link/wix?keyword=sociology+101+final+exam+answers
    • http://files.necementshippers.com/uploads/1/3/1/3/131378968/1a5360.pdf
    • http://wopube.dslvnjny.com/uploads/1/3/2/6/132696056/18b0ff5.pdf
    • http://vuwemejen.esteeculbreth.com/uploads/1/3/1/4/131406069/suvadev-wuleru-gazapixinided.pdf
    • http://files.nationschurchistanbul.com/uploads/1/3/1/8/131856326/021c8eb833.pdf
    • http://files.bestvacationplaces.org/uploads/1/3/1/3/131380052/nosijupujub-mowebabewak-vijewekevawapo-jebazewububur.pdf
    • https://54fa3fa4-83c2-4ec3-96c5-b5f5748442c7.filesusr.com/ugd/f523c3_db6bf2e51e234c50a9a11e11b955c6b4.pdf?index=true
    • https://594743c3-78ae-4da5-881d-0c67c87967d1.filesusr.com/ugd/b7306e_db2239eae64742af80eca0445d270f6c.pdf?index=true
    • https://b1dfc0b6-afd6-4d5e-98f9-231ac0a35975.filesusr.com/ugd/e00bd3_5b09b81367614eccbd45fc342f964a93.pdf?index=true
    • https://cdn.shopify.com/s/files/1/0430/8742/9785/files/tezevopemegozomos.pdf
    • https://cdn.shopify.com/s/files/1/0480/5459/9844/files/71475379940.pdf
    • https://cdn.shopify.com/s/files/1/0431/4077/6090/files/pabov.pdf
    • https://cdn.shopify.com/s/files/1/0434/6842/3330/files/budefegewimeto.pdf
    • https://cdn.shopify.com/s/files/1/0433/4629/6982/files/75519928920.pdf
    • https://cdn.shopify.com/s/files/1/0430/6436/1113/files/togekajakisuguvumoxowik.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_off0000684d.bin
16a196c8fe7a764d937917129c7da1be318a5de3a28af0805659bf8205d434ba		 pdf-font-stream PDF embedded font (sfnt) at offset 0x684D 1864 bytes
font_01_sfnt_off00007136.bin
547a07a6bd7bc37c17e24f9c451d871875fa70313d49b0dcbad0ee261fba707a		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7136 5760 bytes
font_02_sfnt_off000084e9.bin
57929e4d341deced8b160d77a9169fb7d2d1b7c4a10800a39a21202c3ab291e6		 pdf-font-stream PDF embedded font (sfnt) at offset 0x84E9 9864 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.