Malicious PDF — malware analysis report

Static analysis result for SHA-256 a37584b8291eaa58…

MALICIOUS

PDF

44.3 KB Created: 2020-08-20 01:53:50 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 3dc50119a01d139cede808929d7fafbe SHA-1: 9fb92bd3cf80d3915d2845b682e231413bbec610 SHA-256: a37584b8291eaa5870580bc103c33a1a405fcb28182c300205617c2f4309217b
120 Risk Score

Malware Insights

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

The PDF file contains numerous embedded links, a technique often used for SEO poisoning or to redirect users to malicious sites. One of the primary links, 'https://ttraff.ru/pify?keyword=geotechnical+survey+report', is flagged as a malicious redirector. The document body, though heavily obfuscated, contains text related to a 'geotechnical survey report', suggesting a lure to entice users to click the malicious links. No scripts were extracted, but the PDF structure itself facilitates the attack.

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=geotechnical+survey+report
    • http://files.kokmatoys.com/uploads/1/3/0/7/130739971/1962791.pdf
    • http://maguw.mysticmancreations.com/uploads/1/3/2/6/132680981/pipupidinamolaw.pdf
    • http://files.womansclubofpowhatan.org/uploads/1/3/1/0/131069934/841ee4dc3dcd81b.pdf
    • https://cdn.shopify.com/s/files/1/0437/9957/6733/files/novomubileku.pdf
    • https://cdn.shopify.com/s/files/1/0434/5734/7746/files/brother_xl2600i_sewing_machines.pdf
    • https://cdn.shopify.com/s/files/1/0431/0417/4233/files/63718630648.pdf
    • https://cdn.shopify.com/s/files/1/0431/4900/0864/files/94952263578.pdf
    • https://cdn.shopify.com/s/files/1/0437/1228/2789/files/83538143347.pdf
    • https://cdn.shopify.com/s/files/1/0433/8951/7973/files/36851875464.pdf
    • https://cdn.shopify.com/s/files/1/0437/2925/6602/files/sajaji.pdf
    • https://cdn.shopify.com/s/files/1/0437/6503/9261/files/gurenazutizapebemarik.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_off000070b4.bin
41670580aeb7a5480970a1d4118c643f26e44b4fad27846442d37a70fd64bab3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x70B4 5212 bytes
font_01_sfnt_off0000826f.bin
1a0832c216d72d9bbe04e02415b7c615dd2151fe783583b174c974408012126d		 pdf-font-stream PDF embedded font (sfnt) at offset 0x826F 10012 bytes

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