Malicious PDF — malware analysis report

Static analysis result for SHA-256 1e2d1a3d5f1d3487…

MALICIOUS

PDF

96.5 KB Created: 2020-08-05 15:57:34 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 6a0cc782e3bcc02550929bf42ad8bd90 SHA-1: ec1ec6b9a18cd15f586a2c037c9a01bc2cd4d640 SHA-256: 1e2d1a3d5f1d348754b1384c8bd42f65b56bb48afc694ab2c486d29bbfe6602e
120 Risk Score

Malware Insights

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

The PDF file contains multiple embedded links, with a critical heuristic firing for a malicious redirector. The document body, though heavily obfuscated, contains text suggesting a lure related to 'original book of mormon pdf'. The primary malicious URL identified is https://ttraff.com/pify?keyword=original+book+of+mormon+pdf, which is likely used to redirect the user to a malicious site. The file also contains a large number of PDF links, many hosted on shopify.com, suggesting a link farm for SEO poisoning or traffic generation.

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=original+book+of+mormon+pdf
    • http://files.syhteenclinic.org/uploads/1/3/1/3/131398419/7497089.pdf
    • http://files.paulahartsough.com/uploads/1/3/1/3/131398428/letelevodulinim.pdf
    • http://files.rodrigoforhire.com/uploads/1/3/0/7/130739616/tonazezinum.pdf
    • http://files.brockdmclab.com/uploads/1/3/1/6/131606056/3619355.pdf
    • https://cdn.shopify.com/s/files/1/0434/3929/2577/files/49218811614.pdf
    • https://cdn.shopify.com/s/files/1/0432/6303/3502/files/96078979619.pdf
    • https://cdn.shopify.com/s/files/1/0431/2206/5557/files/jelovitajepabil.pdf
    • https://cdn.shopify.com/s/files/1/0435/9671/0047/files/49488981953.pdf
    • https://cdn.shopify.com/s/files/1/0432/4386/4224/files/directv_5_digit_codes.pdf
    • https://cdn.shopify.com/s/files/1/0441/2493/0200/files/24683576701.pdf
    • https://cdn.shopify.com/s/files/1/0431/2242/6013/files/91921248877.pdf
    • https://cdn.shopify.com/s/files/1/0428/6509/8908/files/67070327722.pdf
    • https://cdn.shopify.com/s/files/1/0434/4214/3397/files/9913715410.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_off00012ffe.bin
475dc1f4b4fcc45915bdcc922b069a7f64683ba5957a6eb7254f4c7d922ae5dd		 pdf-font-stream PDF embedded font (sfnt) at offset 0x12FFE 5004 bytes
font_01_sfnt_off000140d5.bin
da2672e26ba852d2a3560f109189caa52b9ed8f8e3976e27d754f4e22b7ea2d5		 pdf-font-stream PDF embedded font (sfnt) at offset 0x140D5 11456 bytes
font_02_sfnt_off00016702.bin
a542ec26cea93e049a2e27cd59b1347dd9bbdea13775fd7b822b3c2b3136116f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x16702 4324 bytes

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