Malicious PDF — malware analysis report

Static analysis result for SHA-256 ae87529869fdd03a…

MALICIOUS

PDF

40.5 KB Created: 2020-08-31 12:20:18 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 8c7c9f5a8a21a3dec11e48283146ce82 SHA-1: 5fb91a0e5967d6c4169d277fe6ab90fcfe297e1e SHA-256: ae87529869fdd03a6b29c6db639bb7e57c428d183366e55388d9b71b3e07de76
120 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF file contains a large number of embedded links, many of which point to Shopify domains, but one critical link directs to a known malicious redirector. The document body, though heavily obfuscated, contains text related to 'Actuarial fm exam study guide' and the malicious URL, suggesting a lure to trick users into clicking the malicious link. The primary attack pattern involves a link farm designed to redirect users to 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.cc/wix?keyword=actuarial+fm+exam+study+guide
    • https://cdn.shopify.com/s/files/1/0433/3545/0774/files/sekarimuz.pdf
    • https://cdn.shopify.com/s/files/1/0429/2775/1321/files/67557981247.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/60359225188.pdf
    • https://cdn.shopify.com/s/files/1/0434/4689/4758/files/malaguena_violin_sheet_music.pdf
    • https://cdn.shopify.com/s/files/1/0433/7287/1832/files/14576696365.pdf
    • https://static.usrfiles.com/ugd/9374a7_9bebea66ac814fa6a42db1d546fb2afc.pdf
    • https://static.usrfiles.com/ugd/3ceeb9_10244a70655f4ead94f4f45bdbda8255.pdf
    • https://cdn.shopify.com/s/files/1/0433/6012/5080/files/xopojabapa.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/juxumadebamapetutorobegew.pdf
    • https://cdn.shopify.com/s/files/1/0437/0055/1845/files/cancer_de_colon.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_off00005fb3.bin
fcb3c10f167c1fbffceb286ca4af0987986b806f2787379a63ec8696f8287c48		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5FB3 5500 bytes
font_01_sfnt_off00007262.bin
9528b46121f00f811a6e37574308ede179228a0847dee7b6df8e1c997197239a		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7262 10360 bytes

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