Malicious PDF — malware analysis report

Static analysis result for SHA-256 ef1fb519a962749b…

MALICIOUS

PDF

50.3 KB Created: 2020-08-22 11:46:51 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: feba727196c32e89c7a81d1f4684b238 SHA-1: 86f80d15b518030d17cada62cc08889e3c48c62b SHA-256: ef1fb519a962749ba1757a3acb095819396de39d3e0391ae2a9155624e3de733
120 Risk Score

Malware Insights

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

The PDF contains a large number of embedded links, many of which point to external resources. One critical heuristic firing indicates that the PDF links to known malicious redirector infrastructure, specifically 'https://ttraff.cc/pify?keyword=recommended+bend+radius+for+aluminum+sheet+metal'. This suggests the document is designed to redirect users to malicious sites under the guise of providing information. No scripts were extracted from this sample.

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.cc/pify?keyword=recommended+bend+radius+for+aluminum+sheet+metal
    • http://kanil.clarebellworship.com/uploads/1/3/2/3/132302780/3290099.pdf
    • http://temevaraw.glittergluestudio.com/uploads/1/3/0/9/130969431/acc2d6.pdf
    • https://cdn.shopify.com/s/files/1/0460/9930/0516/files/locomotive_breath_piano_intro_sheet_music.pdf
    • https://cdn.shopify.com/s/files/1/0431/3304/2839/files/60265738497.pdf
    • https://cdn.shopify.com/s/files/1/0430/1130/9719/files/bidozazit.pdf
    • https://cdn.shopify.com/s/files/1/0433/1382/3909/files/gowazivonilekelaxubanalip.pdf
    • https://cdn.shopify.com/s/files/1/0430/0016/8597/files/dulikaxafakitixisakifu.pdf
    • https://cdn.shopify.com/s/files/1/0429/9603/9839/files/ritebefebavegofumasusavik.pdf
    • https://cdn.shopify.com/s/files/1/0429/9004/3285/files/77818688690.pdf
    • https://cdn.shopify.com/s/files/1/0431/3546/7682/files/53013283810.pdf
    • https://cdn.shopify.com/s/files/1/0434/5384/1560/files/19426809956.pdf
    • https://cdn.shopify.com/s/files/1/0436/2996/9561/files/xuliwe.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/tedogunugovosilogupex.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00007440.bin
89093d0a9a8d4d52fe0ac2f62dcb91376b64a18f1c236f48a3246277a336a265		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7440 5288 bytes
font_01_sfnt_off00008601.bin
22366d0952855c19c6d65350dfdfb5e579ee028062e01bfa4b69fd8065dfb1d0		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8601 12300 bytes
font_02_sfnt_off0000adbb.bin
a542ec26cea93e049a2e27cd59b1347dd9bbdea13775fd7b822b3c2b3136116f		 pdf-font-stream PDF embedded font (sfnt) at offset 0xADBB 4324 bytes

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