Malicious PDF — malware analysis report

Static analysis result for SHA-256 9eb94888a03ff939…

MALICIOUS

PDF

42.4 KB Created: 2020-09-17 04:45:05 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: a4812c827b24a8987d7637db1ae8ba77 SHA-1: f46fe8c765e4d7b23d0a58ba4a6956b495f8adc9 SHA-256: 9eb94888a03ff939706444042009e87aeb695282ca55b9ff96afa654ecba35c8
150 Risk Score

Malware Insights

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

The PDF contains a mass of external links, with one prominent link leading to a known malicious redirector. The document body, though heavily obfuscated, contains the target URL and appears to be a lure related to 'ancient india lesson plans'. The presence of numerous Shopify links suggests an attempt to blend malicious content with seemingly benign resources. No scripts were extracted, limiting the analysis of direct execution behavior.

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.club/wix?keyword=ancient+india+lesson+plans+middle+school
    • https://483f112f-afe6-4909-a411-a972b8674781.filesusr
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/16946396068.pdf
    • https://cdn.shopify.com/s/files/1/0434/1946/7932/files/55371714423.pdf
    • https://cdn.shopify.com/s/files/1/0432/4694/4416/files/catan_classic_apk_espaol.pdf
    • https://cdn.shopify.com/s/files/1/0433/5802/7928/files/7785881812.pdf
    • https://cdn.shopify.com/s/files/1/0430/6714/6397/files/giretafozoxiwa.pdf
    • https://cdn.shopify.com/s/files/1/0433/8126/0440/files/93033410115.pdf
    • https://cdn.shopify.com/s/files/1/0429/7926/2623/files/14045024369.pdf
    • https://cdn.shopify.com/s/files/1/0432/5123/7022/files/28449043666.pdf
    • https://cdn.shopify.com/s/files/1/0486/2745/0024/files/vampire_academy_2_cast.pdf
    • https://cdn.shopify.com/s/files/1/0432/0693/4688/files/nasb_bible_free.pdf
    • https://cdn.shopify.com/s/files/1/0434/0567/2597/files/boboiboy_movie_2_full_hd.pdf
    • https://cdn.shopify.com/s/files/1/0431/6826/8456/files/riesgo_electrico_definicion.pdf
    • https://cdn.shopify.com/s/files/1/0439/4686/8891/files/13465167670.pdf
    • https://cdn.shopify.com/s/files/1/0433/0579/5752/files/kayla_itsines_recipe.pdf
    • https://cdn.shopify.com/s/files/1/0434/8562/6520/files/free_unblocked_hacked_games_at_school.pdf
    • https://a842e78e-3d07-4b48-be71-d798d723e69b.filesusr.com/ugd/ab5adf_89e7431a493346078a6ca3dd68d22238.pdf?index=true
    • https://41ab8eda-d43e-49c9-b489-63b7e6414283.filesusr.com/ugd/49f5ef_b3fdef0b95a94a51b58b7db7053c136c.pdf?index=true
    • https://5bacaf20-2745-40bc-88bf-c90c8a71410e.filesusr.com/ugd/39cb9d_d30d0f0329af442188ab317a6d6b1097.pdf?index=true
    • https://19c3cf87-49a0-4e88-87ed-29cc8f195bfb.filesusr.com/ugd/6cf0f5_4252665c7dc84e75889d25deda20cf83.pdf?index=true
    • https://483f112f-afe6-4909-a411-a972b8674781.filesusr.com/ugd/008e52_e33fc0653d74499a935344311a53ecce.pdf?index=true
    • 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_off00006629.bin
1e50d63ced835d3ea0476a4c0a1447c8d9699269a1ad5921d3ff5723f89ab3c5		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6629 5208 bytes
font_01_sfnt_off000077bb.bin
6717dbc867ae2ac8d32384cffe90a679ebce08467e0a3144a5a1385ac3e14564		 pdf-font-stream PDF embedded font (sfnt) at offset 0x77BB 11208 bytes

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