PDF malware analysis — malicious · e3c69e881453ba93

MALICIOUS

PDF

50.7 KB Created: 2020-10-31 11:06:26 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-14

MD5: 1898d23fea1e13e897436e591e57a00f SHA-1: 98f645382e41dcc96e9ca8b2ba27a5541c6e75e2 SHA-256: e3c69e881453ba93180750a42e1dbdb0bc5e4746307f7fd841a91f0566d5977d

94 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains a link that redirects to malicious infrastructure, as indicated by the PDF_MALICIOUS_REDIRECTOR_LINK heuristic. The document body, though heavily obfuscated, contains text that appears to be a lure related to the 'football head games world cup 2014' and the malicious URL. The ML classifier also strongly flagged this PDF as malicious.

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.
Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL

The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
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.link/123?keyword=football+head+games+world+cup+2014 In PDF document text
- https://paduxadoduxim.weebly.com/uploads/1/3/0/7/130775016/renarozuragizozu.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4406170/normal_5f94d40b9f11a.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4421205/normal_5f9ccf6b86640.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4388428/normal_5f910d4f6f9a0.pdfIn PDF document text
- https://zeburunonuf.weebly.com/uploads/1/3/4/4/134458398/1184740.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- https://s3.amazonaws.com/rokuwapesu/car_sale_agreement_format_india.pdfIn PDF document text
- https://s3.amazonaws.com/kizugokofo/bakolexo.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0478/8876/0998/files/endocrine_society_guidelines_for_primary_aldosteronism.pdfIn PDF document text
- https://s3.amazonaws.com/kimoweworape/42090807373.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0508/3499/7445/files/three_musketeers_candy_recipe.pdfIn PDF document text
- http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
- http://purl.org/dc/elements/1.1/In PDF document text
- http://ns.adobe.com/pdf/1.3/In PDF document text
- http://ns.adobe.com/xap/1.0/In PDF document text
- http://ns.adobe.com/xap/1.0/mm/In PDF document text
- http://ns.adobe.com/xap/1.0/rights/In PDF document text
- http://scripts.sil.org/OFLIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`font_00_sfnt_off000084ab.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x84AB	6088 bytes
SHA-256: `eb2269a7dae3eede2f77f5089f4ee3caae29ab60b721d9907f45d40fa8bc3ec4`
`font_01_sfnt_off00009950.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x9950	11128 bytes
SHA-256: `7acbb07bc320439a8014ba75737c5a18b1186221f5ac28be610a3c8ae9a6005c`

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