Malicious PDF — malware analysis report

Static analysis result for SHA-256 322118c099559b7a…

MALICIOUS

PDF

39.7 KB Created: 2020-08-05 07:47:27 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 81f3d05be75a367c0e09e6cbd50e5c16 SHA-1: 64682fce8b6947c0f2f6ddb70b142a09d026a2fb SHA-256: 322118c099559b7a295f5569f33c97bd9847dd48cd2a908a62b04208ca02e18e
120 Risk Score

Malware Insights

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

The PDF document contains a link farm designed to lure users to click on a URL that redirects to malicious infrastructure. The primary malicious URL identified is https://ttraff.ru/pify?keyword=bridge+over+troubled+water+partitura+piano+pdf. The document body appears to be corrupted or heavily obfuscated, making it difficult to ascertain the exact lure beyond the presence of the link farm. 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.ru/pify?keyword=bridge+over+troubled+water+partitura+piano+pdf
    • http://files.mackbuildltd.com/uploads/1/3/2/3/132303077/9ad5265.pdf
    • http://files.flagshipcommre.com/uploads/1/3/1/0/131070591/mazitobenemej.pdf
    • http://files.lillysquiltsandgifts.com/uploads/1/3/1/3/131380596/9a900f3dcb4f0.pdf
    • https://cdn.shopify.com/s/files/1/0435/2350/6336/files/72659037604.pdf
    • https://cdn.shopify.com/s/files/1/0437/4098/7544/files/62037853818.pdf
    • https://cdn.shopify.com/s/files/1/0441/2620/8152/files/53034331683.pdf
    • https://cdn.shopify.com/s/files/1/0434/6078/8390/files/36227386870.pdf
    • https://cdn.shopify.com/s/files/1/0427/8799/5814/files/12234292801.pdf
    • https://cdn.shopify.com/s/files/1/0434/6498/2693/files/78255902529.pdf
    • https://cdn.shopify.com/s/files/1/0431/3939/9842/files/nozutimizulevatenizudoni.pdf
    • https://cdn.shopify.com/s/files/1/0437/5642/1278/files/30741323512.pdf
    • https://cdn.shopify.com/s/files/1/0430/4489/6917/files/social_security_form_w-_4v.pdf
    • https://cdn.shopify.com/s/files/1/0433/4836/1375/files/94099142863.pdf
    • https://cdn.shopify.com/s/files/1/0431/6489/3345/files/31296136624.pdf
    • https://cdn.shopify.com/s/files/1/0438/1586/2434/files/xudusojezifo.pdf
    • https://cdn.shopify.com/s/files/1/0427/7754/2823/files/dizefisej.pdf
    • https://cdn.shopify.com/s/files/1/0444/8436/2407/files/ansys_apdl_introduction.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_off00004fb0.bin
c2d50357b01f4f455ef2b53573be203fc650f152e7b2196190bf9ecfc454088b		 pdf-font-stream PDF embedded font (sfnt) at offset 0x4FB0 5372 bytes
font_01_sfnt_off00006220.bin
0892af97fe86bd198c9de7e040924f2d452576b4f667452ee065c46937e1633e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6220 14404 bytes

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