Malicious PDF — malware analysis report

Static analysis result for SHA-256 8ac7dd9fbe6cb3dd…

MALICIOUS

PDF

43.2 KB Created: 2020-09-02 00:41:38 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: b7ade7830ad1fab6e7b21a3752df20fd SHA-1: 23b45d97d06e004c88aaf60bdc2da54c3d207f9e SHA-256: 8ac7dd9fbe6cb3dd98977fb396c3f746e82d9837e62ffd84071718a50d07fd8d
150 Risk Score

Malware Insights

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

The PDF contains a malicious redirector link disguised as a document about cloud architecture patterns. The heuristic PDF_MALICIOUS_REDIRECTOR_LINK and PDF_SEO_LINK_FARM indicate the document's primary purpose is to redirect users to malicious infrastructure. The embedded URL points to a known malicious redirector, which is the highest priority IOC.

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.com/wix?keyword=cloud+architecture+patterns+bill+wilder+pdf
    • https://cdn.shopify.com/s/files/1/0432/1227/5876/files/zakakefizavowoxiludapeka.pdf
    • https://cdn.shopify.com/s/files/1/0437/3348/3674/files/boundaries_handout.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/nifafujejugafux.pdf
    • https://cdn.shopify.com/s/files/1/0432/7420/7387/files/15701346605.pdf
    • https://static.usrfiles.com/ugd/b8c837_1da48d54109c46d7999633c552ef3fab.pdf
    • https://static.usrfiles.com/ugd/857e61_ecaad492702a4948966b5121a6926977.pdf
    • https://static.usrfiles.com/ugd/e4ff69_52e2e037c38e4440aa68364f73aeba72.pdf
    • https://static.usrfiles.com/ugd/cfbfd2_ce0d87b8135c489e9995d6ac2b019183.pdf
    • https://cdn.shopify.com/s/files/1/0435/1036/6362/files/34803803450.pdf
    • https://cdn.shopify.com/s/files/1/0432/1994/3579/files/sogemubinazemutevo.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/43778875991.pdf
    • https://cdn.shopify.com/s/files/1/0430/2936/4885/files/54750246357.pdf
    • https://static.usrfiles.com/ugd/0c268c_e5dbba0cdc7443d3a24c4a3efb533879.pdf
    • https://static.usrfiles.com/ugd/2f3216_0b49f91f86604aec9f8bfc289ab81346.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_off00006b41.bin
d7de7d190ac0fdb6b66e1bbcc57836df7814e4db9f1bb6ec24bfc705ab02e943		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6B41 5380 bytes
font_01_sfnt_off00007d8b.bin
454c136cf6aa2bd4fb08ff3b262a14847892698827f8eeae0474736b118a08c9		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7D8B 10044 bytes

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