Malicious PDF — malware analysis report

Static analysis result for SHA-256 e2e889c59cb46e74…

MALICIOUS

PDF

41.2 KB Created: 2020-08-21 15:21:51 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 06618a1a0448790f18992afd5b122184 SHA-1: c46212130948aa26d8b1f49f5a36e282a75bbc22 SHA-256: e2e889c59cb46e74cf2195d97ff26e6d8eccbc46bc5ad7b397e15264a1372797
150 Risk Score

Malware Insights

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

The PDF was flagged by multiple critical heuristics for containing malicious redirector links and a link farm. The embedded URL 'https://ttraff.com/pify?keyword=endocrine+therapy+breast+cancer+pdf' is a known malicious redirector. The document body, though heavily obfuscated, contains references to the redirector URL and appears to be a lure for users seeking information on endocrine therapy, likely to lead them to malicious content.

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.com/pify?keyword=endocrine+therapy+breast+cancer+pdf
    • http://jodub.terrymcgrawphotography.com/uploads/1/3/2/8/132814930/nejujafigepikatug.pdf
    • http://files.lovegodblesspeople.com/uploads/1/3/0/7/130775506/dupinur.pdf
    • http://pijitepa.the8blockfitnessstudio.com/uploads/1/3/1/6/131637021/1196684.pdf
    • https://cdn.shopify.com/s/files/1/0435/0948/1626/files/classifying_rational_numbers_worksheet_6th_grade_answer_key.pdf
    • https://cdn.shopify.com/s/files/1/0427/8714/3839/files/tategebezigurulagovite.pdf
    • https://cdn.shopify.com/s/files/1/0427/7266/0390/files/kiss_animalize_live.pdf
    • https://cdn.shopify.com/s/files/1/0428/5172/9574/files/23538678113.pdf
    • https://cdn.shopify.com/s/files/1/0437/2663/5157/files/rodurezodamifese.pdf
    • https://cdn.shopify.com/s/files/1/0427/6197/8023/files/pitchfork_top_200.pdf
    • https://cdn.shopify.com/s/files/1/0429/7339/7145/files/pesitujotelukagakegakav.pdf
    • https://cdn.shopify.com/s/files/1/0432/2282/7165/files/vinib.pdf
    • https://cdn.shopify.com/s/files/1/0432/4327/4395/files/solirugunoxazaso.pdf
    • https://cdn.shopify.com/s/files/1/0431/1770/7413/files/american_english_file_second_edition.pdf
    • https://cdn.shopify.com/s/files/1/0438/9833/9496/files/35325354436.pdf
    • https://cdn.shopify.com/s/files/1/0432/4681/3344/files/30821326445.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_off00006454.bin
6aae3096da54e443daad82b4bded6ff39d34a8ba9c7b87ea0fc516f31efb5daf		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6454 5412 bytes
font_01_sfnt_off000076ac.bin
42b8ae824619a0df3b837b4cfe8440c22b21f63c37ac99d4acf5fd1d9beaf468		 pdf-font-stream PDF embedded font (sfnt) at offset 0x76AC 9676 bytes

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