Malicious PDF — malware analysis report

Static analysis result for SHA-256 c4cbd3ad5a559c2b…

MALICIOUS

PDF

46.2 KB Created: 2020-08-16 14:58:49 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 837732823c8ce203a95ab88f4b68ca5e SHA-1: 3afe6d5b1db5385acd5d911cb3a64ff0b7a8df10 SHA-256: c4cbd3ad5a559c2b73944028dc30efeca056b56f479b74d91cb3b44c351ca718
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 a link farm hosted on Shopify. One of the primary links, however, redirects to `https://ttraff.ru/pify?keyword=cracker+barrel+sides+nutrition+information`, which is flagged as a malicious redirector. This suggests the document is designed to lead users to malicious content through a chain of redirects, likely for phishing or malware distribution.

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=cracker+barrel+sides+nutrition+information
    • http://sekijo.experiencefirstaidandcpr.com/uploads/1/3/2/8/132814809/nixarotajip.pdf
    • https://cdn.shopify.com/s/files/1/0437/4259/3189/files/research_methods_in_public_administration_and_public_management.pdf
    • https://cdn.shopify.com/s/files/1/0431/3631/9637/files/78440565407.pdf
    • https://cdn.shopify.com/s/files/1/0431/7482/2043/files/60782331935.pdf
    • https://cdn.shopify.com/s/files/1/0432/3953/8851/files/29851570933.pdf
    • https://cdn.shopify.com/s/files/1/0435/5280/0920/files/wolejurimabazutixo.pdf
    • https://cdn.shopify.com/s/files/1/0430/8716/7645/files/93261752472.pdf
    • https://cdn.shopify.com/s/files/1/0431/9903/7595/files/vasotewaraxadubogexefunob.pdf
    • https://cdn.shopify.com/s/files/1/0433/3921/9099/files/12020215147.pdf
    • https://cdn.shopify.com/s/files/1/0427/9356/6364/files/jobs4tn_gov_login.pdf
    • https://cdn.shopify.com/s/files/1/0437/6693/9799/files/concepts_of_database_management_6th_edition.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_off00006a16.bin
e462d75cc9be411e42aa9e2b3f4c081d6c96446f006e6e1892c0ec1a31492315		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6A16 5276 bytes
font_01_sfnt_off00007be8.bin
12f2a7ae4c7dcb16be2eb6d6955a4a764211b43317a073969d7889090160b60b		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7BE8 15600 bytes

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