Malicious PDF — malware analysis report

Static analysis result for SHA-256 5772014e152bfba2…

MALICIOUS

PDF

45.6 KB Created: 2020-09-04 04:59:07 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 45492d1222423e084c9fb6b92d3a4f64 SHA-1: 9bba79d583446cefa6610c7cc831228ab73597e3 SHA-256: 5772014e152bfba251da13ec13bd549d45d676dd07f8cc597b92a3e70b14094f
120 Risk Score

Malware Insights

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

The PDF contains a link farm designed to appear as legitimate study material, but the primary link redirects to malicious infrastructure. The heuristic PDF_MALICIOUS_REDIRECTOR_LINK confirms this redirection. The document body contains garbled text but includes the malicious URL, suggesting a lure for users seeking 'ibps computer knowledge pdf free'. No scripts were extracted, but the PDF structure itself facilitates the malicious redirection.

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=ibps+computer+knowledge+pdf+free
    • https://static.usrfiles.com/ugd/33a2e4_c9a6488cc14741549a3022f52ed92d6c.pdf
    • https://static.usrfiles.com/ugd/9f6a24_6c2ae71bf058485e93dfa1b5c68c782b.pdf
    • https://static.usrfiles.com/ugd/e643da_088f82b76a2c44a19b3a105f7221b332.pdf
    • https://cdn.shopify.com/s/files/1/0437/5507/7781/files/let_us_c_13th_edition.pdf
    • https://cdn.shopify.com/s/files/1/0437/7283/8039/files/wadisazefixovan.pdf
    • https://cdn.shopify.com/s/files/1/0429/6956/3290/files/zejosom.pdf
    • https://cdn.shopify.com/s/files/1/0432/0631/2093/files/gazanarin.pdf
    • https://cdn.shopify.com/s/files/1/0434/7920/3992/files/canada_passport_application_form_renewal.pdf
    • https://cdn.shopify.com/s/files/1/0433/9243/4326/files/ligumidolaludewuf.pdf
    • https://static.usrfiles.com/ugd/58a813_1111d184f248455cba40ca13ce1518a5.pdf
    • https://static.usrfiles.com/ugd/e1d12c_ae91382296e843da8f9e426862b26736.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_off00006a29.bin
1f46d1022f270f4eef90234272748140001a90a52177a24f12ba739c7c32a25d
pdf-font-stream PDF embedded font (sfnt) at offset 0x6A29 5500 bytes
font_01_sfnt_off00007cde.bin
a39d3d3511a22f7882ba1d847238f20d8a37aaba83f48c040be892e5402f1b21
pdf-font-stream PDF embedded font (sfnt) at offset 0x7CDE 14620 bytes