Malicious PDF — malware analysis report

Static analysis result for SHA-256 9ef88a298dcb99ee…

MALICIOUS

PDF

41.7 KB Created: 2020-08-15 08:28:53 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 5b39d5844258aabb067f3a54cb2a9922 SHA-1: 688f38bc254cdb5fb1c0f88d4a3945984938ba26 SHA-256: 9ef88a298dcb99ee5a09ffb7901f56f659931f64a0283baa64064fd68464dba1
120 Risk Score

Malware Insights

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

The PDF file contains a significant number of embedded links, identified as a PDF link farm. One of these links, 'https://ttraff.com/pify?keyword=national+anthem+song++320kbps', points to a known malicious redirector. The document body, though heavily obfuscated, also contains this URL, suggesting it is a primary lure. The presence of numerous links indicates an attempt to distribute malicious content or conduct phishing operations.

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=national+anthem+song++320kbps
    • http://visobi.solelysunshine.com/uploads/1/3/2/3/132303072/1927834.pdf
    • http://files.mnhaequinemassage.com/uploads/1/3/1/4/131408899/9379330.pdf
    • http://files.well-estar.com/uploads/1/3/1/6/131637034/91a0067.pdf
    • http://dodipadi.operationfeedsjc.org/uploads/1/3/1/4/131437657/nakigitotuzol.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/tovaje.pdf
    • https://cdn.shopify.com/s/files/1/0439/1128/2840/files/68053035337.pdf
    • https://cdn.shopify.com/s/files/1/0435/8458/5883/files/noxuzetulizu.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/salelixakibikiziz.pdf
    • https://cdn.shopify.com/s/files/1/0429/8774/9529/files/diforake.pdf
    • https://cdn.shopify.com/s/files/1/0428/4320/9895/files/80149408303.pdf
    • https://cdn.shopify.com/s/files/1/0429/3066/7673/files/unforgiven_2_lyrics.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/78030006053.pdf
    • https://cdn.shopify.com/s/files/1/0431/2468/7014/files/alienware_x51_r3_specs.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_off000062b7.bin
5cbc683f81439f159310eef863dc4771d7b755b8f6c9fb8b47e2828a94f7d253		 pdf-font-stream PDF embedded font (sfnt) at offset 0x62B7 5748 bytes
font_01_sfnt_off00007626.bin
3d088b53a57758fb55757e34ea317a1f96cd2aeaf6ac37a546d8f7ae625c0e16		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7626 10592 bytes

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