Malicious PDF — malware analysis report

Static analysis result for SHA-256 c6f3f2e18ee6ec01…

MALICIOUS

PDF

50.8 KB Created: 2020-08-07 00:26:58 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 7b186979781d78f3f127fcd3eb877c42 SHA-1: 31a76e909d71e3deff3f236d698a17304f321cf4 SHA-256: c6f3f2e18ee6ec017eb718936c99979daa9b35c2c6b95bf23ed77a2b9ff77efa
120 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link pointing to 'ttraff.com'. This URL is part of a link farm designed to distribute malicious content. The document body, though heavily obfuscated, contains the same URL, reinforcing the malicious intent. The presence of numerous embedded links, many hosted on Shopify, suggests an attempt to disguise the malicious redirector within a large number of seemingly benign links.

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=calculus+with+applications+9th+edition+solutions+manual+pdf
    • http://files.steelin1.com/uploads/1/3/1/3/131381607/jimonowi-sonazixewozuf-maxanuzalapeja-dimibugigaloleb.pdf
    • http://files.safeyachtsluperondr.com/uploads/1/3/1/6/131637362/movekixizejokato.pdf
    • http://files.111-ed.com/uploads/1/3/0/7/130775150/nufunivox.pdf
    • https://cdn.shopify.com/s/files/1/0432/6726/0582/files/wosevasakerimufe.pdf
    • https://cdn.shopify.com/s/files/1/0427/5775/0951/files/negulonubivo.pdf
    • https://cdn.shopify.com/s/files/1/0427/4782/2236/files/nizodelaluwinijipiki.pdf
    • https://cdn.shopify.com/s/files/1/0427/9091/2159/files/63361014936.pdf
    • https://cdn.shopify.com/s/files/1/0429/1795/3702/files/ultimate_skyrim_4._0._5_full.pdf
    • https://cdn.shopify.com/s/files/1/0429/3469/8147/files/lajalabaverenu.pdf
    • https://cdn.shopify.com/s/files/1/0429/6704/0154/files/sitibilapivax.pdf
    • https://cdn.shopify.com/s/files/1/0433/0523/8692/files/73939965615.pdf
    • https://cdn.shopify.com/s/files/1/0436/5837/9417/files/18878344561.pdf
    • https://cdn.shopify.com/s/files/1/0438/5003/9446/files/high_school_vocabulary.pdf
    • https://cdn.shopify.com/s/files/1/0434/8909/9938/files/nudibulowuzufirosefalax.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_off0000788c.bin
442f8577efe5836790d35c44b68da59531f1ddbafe4159904f004387d39c400d		 pdf-font-stream PDF embedded font (sfnt) at offset 0x788C 5452 bytes
font_01_sfnt_off00008afd.bin
a121125a2210cebffb1c615f2bed025252c580c94338470928081926809851d1		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8AFD 10948 bytes
font_02_sfnt_off0000afec.bin
a542ec26cea93e049a2e27cd59b1347dd9bbdea13775fd7b822b3c2b3136116f		 pdf-font-stream PDF embedded font (sfnt) at offset 0xAFEC 4324 bytes

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