Malicious PDF — malware analysis report

Static analysis result for SHA-256 ecaea105fff45a5b…

MALICIOUS

PDF

58.9 KB Created: 2020-08-31 03:51:07 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 8f88af7ab8179e6cbfb17809414477a7 SHA-1: 16c8caa165a3679f70e316a7e356ba52bd159b93 SHA-256: ecaea105fff45a5b2a8e58e681f97bf8be7cb9580196c0bd7f72fbfd908315c6
120 Risk Score

Malware Insights

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

The PDF file contains a heuristic firing for a malicious redirector link and a link farm. The embedded URL, 'https://ttraff.cc/wix?keyword=pride+and+prejudice+elizabeth', is identified as malicious. The document body, though heavily obfuscated, contains this URL, suggesting a social engineering lure to trick users into visiting a malicious site. The file type and the nature of the links point towards a phishing or redirection attack.

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/wix?keyword=pride+and+prejudice+elizabeth
    • https://cdn.shopify.com/s/files/1/0428/1224/4134/files/kuzotovomatajobasivogaz.pdf
    • https://cdn.shopify.com/s/files/1/0431/5506/2938/files/jaxodezo.pdf
    • https://cdn.shopify.com/s/files/1/0433/0032/3478/files/87176212915.pdf
    • https://cdn.shopify.com/s/files/1/0433/8925/5847/files/ardab_mutiyaran_song_mr_jatt.pdf
    • https://cdn.shopify.com/s/files/1/0447/5266/6778/files/spermacoce_hispida.pdf
    • https://cdn.shopify.com/s/files/1/0434/5213/7625/files/rezoximibanozogode.pdf
    • https://cdn.shopify.com/s/files/1/0435/5378/3957/files/voletuxovoruromizev.pdf
    • https://cdn.shopify.com/s/files/1/0436/7309/2246/files/pegipumuzo.pdf
    • https://cdn.shopify.com/s/files/1/0430/3015/1330/files/79873393044.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/85155057715.pdf
    • https://cdn.shopify.com/s/files/1/0429/8424/3363/files/transport_business_opportunities_in_south_africa.pdf
    • https://cdn.shopify.com/s/files/1/0465/1411/0614/files/striker_fulminata_guide.pdf
    • https://cdn.shopify.com/s/files/1/0429/7680/5023/files/kufirazip.pdf
    • https://cdn.shopify.com/s/files/1/0432/5031/9517/files/66276009487.pdf
    • https://cdn.shopify.com/s/files/1/0431/5840/5276/files/chicken_invaders_4_mod_apk.pdf
    • https://cdn.shopify.com/s/files/1/0451/2520/6169/files/20908205751.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_off0000a926.bin
bf2b2a220ca89366d7313a1fd343d6a35f85737ebf08ecbbe660cbff03129295		 pdf-font-stream PDF embedded font (sfnt) at offset 0xA926 5252 bytes
font_01_sfnt_off0000baf0.bin
9c3c066c40c3a141f9e22a2a25862a47f98d69400adf4fff31a97e76cfb0e28e		 pdf-font-stream PDF embedded font (sfnt) at offset 0xBAF0 10576 bytes

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