Malicious PDF — malware analysis report

Static analysis result for SHA-256 caa8ff68884ebf07…

MALICIOUS

PDF

46.6 KB Created: 2020-09-07 16:46:54 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 7b7aedeb82e3481cfacdeb4142f70862 SHA-1: 9862fb1746120d37c14b62cae68dc2710ae6a72c SHA-256: caa8ff68884ebf079c64816a195fab8f38fbe1c5e8044fc16327496b0e82125a
120 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link, pointing to 'https://ttraff.me/wix?keyword=catechism+of+the+catholic+church+pdf+2018'. This URL is likely used to redirect the user to a malicious site. The document body, though heavily obfuscated, contains text that appears to be a lure for the malicious link. The presence of numerous other links, many pointing to Shopify, suggests a link farm or SEO poisoning tactic to improve search engine visibility for the malicious content.

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.me/wix?keyword=catechism+of+the+catholic+church+pdf+2018
    • https://cdn.shopify.com/s/files/1/0432/4111/1716/files/sarukofividumug.pdf
    • https://cdn.shopify.com/s/files/1/0431/3445/1874/files/70874947305.pdf
    • https://cdn.shopify.com/s/files/1/0430/1606/1091/files/reniregulevawex.pdf
    • https://cdn.shopify.com/s/files/1/0433/8309/5459/files/xukiwenaropibe.pdf
    • https://static.usrfiles.com/ugd/4e6dd5_46bf450eab414d6aabf164f7b719fe64.pdf
    • https://cdn.shopify.com/s/files/1/0431/1141/5959/files/remove_metadata_from.pdf
    • https://cdn.shopify.com/s/files/1/0436/2511/9904/files/payzapp_app_for_iphone.pdf
    • https://cdn.shopify.com/s/files/1/0432/4560/0936/files/xugodosakab.pdf
    • https://cdn.shopify.com/s/files/1/0435/1816/5146/files/95334719036.pdf
    • https://cdn.shopify.com/s/files/1/0437/8440/5153/files/the_brown_bunny_blowjob.pdf
    • https://cdn.shopify.com/s/files/1/0434/0000/3749/files/bozifutagopawijuka.pdf
    • https://cdn.shopify.com/s/files/1/0430/7435/5351/files/subwoofer_sony_xplod_1300_watts_12.pdf
    • https://cdn.shopify.com/s/files/1/0435/5555/3443/files/oracle_cash_to_general_ledger_reconciliation_report.pdf
    • https://cdn.shopify.com/s/files/1/0428/1312/8871/files/alexander_graham_bell_biography.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_off000076e5.bin
bddf894d805bb993cbfa286d822b0a88596a897cb974217d18a345ad0d8fa117		 pdf-font-stream PDF embedded font (sfnt) at offset 0x76E5 5820 bytes
font_01_sfnt_off00008a8e.bin
a9c38b719736beb15f47d343755b19506ee010ab06e00a04868c8495f01c8267		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8A8E 10288 bytes

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