Malicious PDF — malware analysis report

Static analysis result for SHA-256 ff834444770b639b…

MALICIOUS

PDF

165.0 KB Created: 2020-09-02 05:19:07 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 51ca4895b658e480fbaeaea00c94abcc SHA-1: 321fde9d8a9f5d3efd1af3e369b2612037767679 SHA-256: ff834444770b639b5368e2f2a785461822aa86c3b51f7c004ebe28e4bf6d8a0b
60 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 embedded URL, 'https://ttraff.com/pify?keyword=android+studio+3.+0++for+windows', is presented as a lure for software download. This suggests a phishing or social engineering attack aimed at redirecting users to a malicious site. No scripts were extracted, limiting further analysis of the payload.

Heuristics 2

  • 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.
  • 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=android+studio+3.+0++for+windows
    • https://cdn.shopify.com/s/files/1/0435/1574/0312/files/dumufalinofowawajamafi.pdf
    • https://cdn.shopify.com/s/files/1/0429/2873/4375/files/nukeredobejafevibowu.pdf
    • https://cdn.shopify.com/s/files/1/0432/4917/2643/files/brand_equity_meaning.pdf
    • https://cdn.shopify.com/s/files/1/0440/7037/1493/files/nexifuwatonaju.pdf
    • https://cdn.shopify.com/s/files/1/0428/9452/4579/files/kifen.pdf
    • https://cdn.shopify.com/s/files/1/0447/7802/9213/files/grade_12_chemistry_textbook_mcgraw_hill_ryerson.pdf
    • https://cdn.shopify.com/s/files/1/0432/6775/2099/files/17239415102.pdf
    • https://static.usrfiles.com/ugd/10b11f_e97d20621a4348e7bf99ff6e616603b9.pdf
    • https://static.usrfiles.com/ugd/9d66c7_296456ac1a87477b832fe237f20d85ac.pdf
    • https://static.usrfiles.com/ugd/d775a9_e7098f7548954c5eae557164beefa0a3.pdf
    • https://static.usrfiles.com/ugd/7c3584_57465a36f5d74a35bf4fa33cb925fd48.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_off000250f9.bin
672f27a12bbd3a5a290531252e384c23e605c3b047e77fd331a0ebdb4930719c		 pdf-font-stream PDF embedded font (sfnt) at offset 0x250F9 5080 bytes
font_01_sfnt_off00026272.bin
8d549aef15d5be82f110f16e46a0e5f2571e9e0cf28b717e4af402570a19f724		 pdf-font-stream PDF embedded font (sfnt) at offset 0x26272 10492 bytes

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