Malicious PDF — malware analysis report

Static analysis result for SHA-256 87e19c882077cb19…

MALICIOUS

PDF

40.7 KB Created: 2020-08-23 02:05:55 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 0b7d0f3d5789e81562d84a9ceb0bc8a3 SHA-1: ce16edccb41c7e6af855dd2e02085500285de12c SHA-256: 87e19c882077cb191101693d4211e6522ca8a6ba34919a297b1981ebcdae3c24
128 Risk Score

Malware Insights

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

The PDF contains a link farm and a redirector link to a known malicious domain, indicating a phishing or malware distribution attempt. The presence of a visual download button further supports the lure. The primary malicious URL identified is https://ttraff.cc/pify?keyword=aws+s3+select+performance, which likely leads to a secondary payload or phishing page.

Heuristics 4

  • 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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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.cc/pify?keyword=aws+s3+select+performance
    • http://jijot.kparkerdesign.net/uploads/1/3/1/4/131437092/0cf6dc1478e63.pdf
    • http://files.dbedwardsjr.com/uploads/1/3/1/3/131380107/cea6c828e82662.pdf
    • http://zutejuti.theridingtherapycenter.org/uploads/1/3/0/9/130969280/719d00f.pdf
    • http://files.merrillicedrags.com/uploads/1/3/0/7/130775398/2167697.pdf
    • http://files.regalbakeryusa.com/uploads/1/3/0/9/130969885/roxasivoro_devipizojopuxem_xabobazemidig.pdf
    • https://cdn.shopify.com/s/files/1/0430/5115/5618/files/68533747400.pdf
    • https://cdn.shopify.com/s/files/1/0435/8946/8328/files/73843052411.pdf
    • https://cdn.shopify.com/s/files/1/0431/8933/8276/files/7105546112.pdf
    • https://cdn.shopify.com/s/files/1/0429/4705/1686/files/dabutogewoxeletedazuva.pdf
    • https://cdn.shopify.com/s/files/1/0429/8804/4442/files/nopefemadofu.pdf
    • https://cdn.shopify.com/s/files/1/0460/0555/1271/files/capitalization_worksheets_free_printable.pdf
    • https://cdn.shopify.com/s/files/1/0431/9746/4731/files/zelimitajefu.pdf
    • https://cdn.shopify.com/s/files/1/0428/1712/6563/files/18252376821.pdf
    • https://cdn.shopify.com/s/files/1/0433/3810/5000/files/how_to_merge_on_mac.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_off00006163.bin
92e8203afacd39bdaf9c950b654b67f141a18c7adea74b1c0d30b1cbfb6e5447		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6163 5408 bytes
font_01_sfnt_off000073ba.bin
4a2884cac88a3a5447ee6d9ba7050158acd8d4a4e6926bd237acc8596f6abe40		 pdf-font-stream PDF embedded font (sfnt) at offset 0x73BA 10128 bytes

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