Malicious PDF — malware analysis report

Static analysis result for SHA-256 fd0d33a22b85b77b…

MALICIOUS

PDF

47.0 KB Created: 2020-08-22 12:32:48 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: b207a1669db355262b12a1d4995e2e36 SHA-1: a5c7f28a3836eb209f1711b07b0c6b136eca81e4 SHA-256: fd0d33a22b85b77b94a5bce9b9132a28913bf0c6a3b72012af1e51b0f2cc3678
150 Risk Score

Malware Insights

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

The PDF contains a high number of embedded links, with a critical heuristic firing for a malicious redirector. The document body, though partially corrupted, contains text related to a 'dog encyclopedia pdf free' and the malicious URL. The primary malicious IOC is the redirector URL, which is likely used to funnel victims to a phishing or malware-hosting site. No scripts were extracted from this sample.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

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=dog+encyclopedia+pdf+free
    • http://filap.peaceforokinawa.org/uploads/1/3/2/3/132302921/petojofojezujutakase.pdf
    • https://cdn.shopify.com/s/files/1/0428/5261/4311/files/bidugazovorudinirijiri.pdf
    • https://cdn.shopify.com/s/files/1/0431/6705/6028/files/visa_corporate_responsibility_report_2017.pdf
    • https://cdn.shopify.com/s/files/1/0451/2422/3141/files/congenital_heart_disease_file.pdf
    • https://cdn.shopify.com/s/files/1/0431/5850/3590/files/liwex.pdf
    • https://cdn.shopify.com/s/files/1/0428/4763/3575/files/xafujorebapal.pdf
    • https://cdn.shopify.com/s/files/1/0436/3947/2288/files/78784714613.pdf
    • https://cdn.shopify.com/s/files/1/0438/9378/4728/files/garixuseja.pdf
    • https://cdn.shopify.com/s/files/1/0431/8475/0743/files/61148095702.pdf
    • https://cdn.shopify.com/s/files/1/0432/4923/8178/files/7877123387.pdf
    • https://cdn.shopify.com/s/files/1/0434/8064/5782/files/67570864569.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006294.bin
022fd1857b2c9d323f06c2df2d31bf8cfadbb8feaa1e492b8f5e34e8efe75b60		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6294 5244 bytes
font_01_sfnt_off00007480.bin
5449db9c38fb8d04216862eb6c7734393bc9591884c8e29896272333c5953af0		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7480 10600 bytes
font_02_sfnt_off000098db.bin
94fa2ec88f453199cb4cab8119225a09c1c4ba77f698215647df18d22a965d80		 pdf-font-stream PDF embedded font (sfnt) at offset 0x98DB 16572 bytes

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