Malicious PDF — malware analysis report

Static analysis result for SHA-256 ce4cf9421d2ca235…

MALICIOUS

PDF

71.9 KB Created: 2020-08-19 03:55:53 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 5ee8a7fa2c6859f540daf4095c91903a SHA-1: 7aea242cc76d551d22825fafe66d899590e46ce2 SHA-256: ce4cf9421d2ca235f30a8057c1f49942fed73a0fdc28249f40cb9f13b7f071e9
120 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded links, many of which point to external PDF files hosted on Shopify. One of the primary links redirects to a malicious URL, ttraff.cc, which is likely used for phishing or malware distribution. The document body, though heavily obfuscated, contains the text 'Bovine spongiform encephalopathy definition' and the malicious URL, suggesting a lure to trick users into clicking the link.

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/pify?keyword=bovine+spongiform+encephalopathy+definition
    • http://files.paytonpropertyservicesllc.com/uploads/1/3/1/6/131637498/2080142.pdf
    • http://files.legalandcommercial.com/uploads/1/3/0/7/130739379/4529278.pdf
    • http://moluso.karolinafreino.com/uploads/1/3/1/3/131379444/d0e56b4229ca19e.pdf
    • http://rubeduve.thezhanggroup.com/uploads/1/3/0/7/130776445/61f17.pdf
    • http://files.c4csports.org/uploads/1/3/1/0/131070313/2611455.pdf
    • https://cdn.shopify.com/s/files/1/0435/7128/2079/files/bebikaworitexurobanus.pdf
    • https://cdn.shopify.com/s/files/1/0429/9954/6010/files/42751664203.pdf
    • https://cdn.shopify.com/s/files/1/0430/6056/0025/files/kawebalepuvivatuvedodiki.pdf
    • https://cdn.shopify.com/s/files/1/0434/3834/2311/files/pazalazofifemal.pdf
    • https://cdn.shopify.com/s/files/1/0447/8589/3542/files/99219956268.pdf
    • https://cdn.shopify.com/s/files/1/0441/4029/8392/files/98288053908.pdf
    • https://cdn.shopify.com/s/files/1/0429/2804/6233/files/92187310863.pdf
    • https://cdn.shopify.com/s/files/1/0433/9820/1502/files/32002168637.pdf
    • https://cdn.shopify.com/s/files/1/0433/3237/0584/files/fishing_report_grande_ronde_river.pdf
    • https://cdn.shopify.com/s/files/1/0431/5276/9192/files/5190231589.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_off0000dab4.bin
4be2956119d4a0edbdc95cd96d9cda54b8bac32de94e7098c956258d0b8b6678
pdf-font-stream PDF embedded font (sfnt) at offset 0xDAB4 5780 bytes
font_01_sfnt_off0000ee43.bin
d91eebda65cd64afb532a4bad7187ca018b6efee9e706e773f6a37ed7db4e791
pdf-font-stream PDF embedded font (sfnt) at offset 0xEE43 10460 bytes