Malicious PDF — malware analysis report

Static analysis result for SHA-256 2adbb4a8bb83038d…

MALICIOUS

PDF

49.0 KB Created: 2020-09-04 17:09:53 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 9646d58350fe8496e5e0d8c304d10018 SHA-1: 4099cfd63492378ea2048628b362d9cf70780b55 SHA-256: 2adbb4a8bb83038d28eff8f97dc2c2ef6f836a17de19e076b3277df16aadc561
120 Risk Score

Malware Insights

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

The PDF file contains a critical heuristic firing indicating it links to known malicious redirector infrastructure. The document body, though heavily obfuscated, contains the URL 'https://ttraff.me/pify?keyword=the+last+kingdom+season+3+episode+guide', which is likely intended to lead the user to a malicious site. The presence of numerous other PDF links, many hosted on Shopify, suggests a link farm or SEO poisoning tactic to increase visibility. No scripts were extracted from this sample.

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/pify?keyword=the+last+kingdom+season+3+episode+guide
    • https://cdn.shopify.com/s/files/1/0428/4334/0956/files/todalexegaforurika.pdf
    • https://cdn.shopify.com/s/files/1/0430/4030/9402/files/2421945359.pdf
    • https://cdn.shopify.com/s/files/1/0435/5689/6927/files/movies_2016_free_hd.pdf
    • https://cdn.shopify.com/s/files/1/0434/2900/3416/files/kixekudo.pdf
    • https://cdn.shopify.com/s/files/1/0428/0087/3631/files/76351629844.pdf
    • https://static.usrfiles.com/ugd/ced2dc_57fec8e36cde486f830e8dc3b092b30a.pdf
    • https://cdn.shopify.com/s/files/1/0427/6905/5911/files/carbonyl_compounds_aldehydes_and_ketones.pdf
    • https://cdn.shopify.com/s/files/1/0433/3414/0072/files/sokokulivijutalokepa.pdf
    • https://cdn.shopify.com/s/files/1/0437/6556/3549/files/sample_daycare_business_plan.pdf
    • https://cdn.shopify.com/s/files/1/0432/6070/6971/files/32661740450.pdf
    • https://cdn.shopify.com/s/files/1/0440/6909/3541/files/dimowevemopo.pdf
    • https://cdn.shopify.com/s/files/1/0433/5930/5880/files/64794963813.pdf
    • https://cdn.shopify.com/s/files/1/0459/9051/0754/files/bulbulay_drama_mp4_video.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_off00006be5.bin
eef0268fec0e140a900760d3c510b3021cd60bf7f10a66671252d1d154ed4ca1		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6BE5 6484 bytes
font_01_sfnt_off000081fb.bin
3511e009d5998acb2d83770c0d4e8d14dfb9f3dde56e67451fabe5be1f464a83		 pdf-font-stream PDF embedded font (sfnt) at offset 0x81FB 5456 bytes
font_02_sfnt_off00009465.bin
c0955335abdd33acc32a4ddde50d495166cc6f5b31e85b38839747bc05efdc5c		 pdf-font-stream PDF embedded font (sfnt) at offset 0x9465 10156 bytes

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