Malicious PDF — malware analysis report

Static analysis result for SHA-256 4c4415f0cfba263f…

MALICIOUS

PDF

47.0 KB Created: 2020-08-22 11:19:10 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 56a7d44acc0f886c83e7b069d66161dc SHA-1: e90360d6afe51714a41f071f9b60d31aa6c93ca7 SHA-256: 4c4415f0cfba263f21aafb0a114ecae7e3c5e6854533406902bf42a59aecbc0f
120 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link pointing to 'https://ttraff.com/pify?keyword=anita+blake+micah+pdf'. Additionally, it exhibits a PDF link farm heuristic, with numerous external links, including one to 'https://cdn.shopify.com/s/files/1/0433/8450/4474/files/brinjal_diseases_and_pests.pdf'. The document body contains obfuscated text and the target URL, suggesting a phishing or redirection attempt.

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=anita+blake+micah+pdf
    • http://files.gener8tionalconnections.com/uploads/1/3/1/6/131637226/2830120.pdf
    • http://files.cochrantonfair.org/uploads/1/3/2/7/132740536/mewekarukesewe.pdf
    • http://burobo.saramelodyart.com/uploads/1/3/2/3/132302815/penaridok.pdf
    • https://cdn.shopify.com/s/files/1/0433/8450/4474/files/brinjal_diseases_and_pests.pdf
    • https://cdn.shopify.com/s/files/1/0432/8862/5316/files/34869944210.pdf
    • https://cdn.shopify.com/s/files/1/0439/4903/1592/files/firufebefizexemibutar.pdf
    • https://cdn.shopify.com/s/files/1/0432/6971/8182/files/tasufawezovim.pdf
    • https://cdn.shopify.com/s/files/1/0430/0131/5491/files/tiwozoxijuwuzutulanivinat.pdf
    • https://cdn.shopify.com/s/files/1/0433/9862/7495/files/norodedebijapeputaruv.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/74808095599.pdf
    • https://cdn.shopify.com/s/files/1/0434/1389/7372/files/bootstrap_form-_group_row_col.pdf
    • https://cdn.shopify.com/s/files/1/0440/5395/4725/files/wow_philosopher_s_stone.pdf
    • https://cdn.shopify.com/s/files/1/0434/5344/8358/files/chemistry_solubility_table.pdf
    • https://cdn.shopify.com/s/files/1/0430/5004/1495/files/dejera.pdf
    • https://cdn.shopify.com/s/files/1/0437/7752/3861/files/62936154566.pdf
    • https://cdn.shopify.com/s/files/1/0433/3443/4969/files/maritime_admiralty_law.pdf
    • https://cdn.shopify.com/s/files/1/0434/2854/4668/files/3771797877.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_off00007b49.bin
d3966ad90fe5bed0e643648380c222fad71a22ff395c53294a597eff72ba5fcf		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7B49 5316 bytes
font_01_sfnt_off00008d2a.bin
c4bc2cc3d8323cc682efed948d0dc0da4e210bb0cb2f909b5541c1a2a85a0ade		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8D2A 9860 bytes

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