Malicious PDF — malware analysis report

Static analysis result for SHA-256 f18196247065ef47…

MALICIOUS

PDF

57.6 KB Created: 2020-08-04 13:11:58 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: ffafde23e3f285920ba184639b472e7a SHA-1: 330675e4b7cf758d034ed4a77bbf0466ed2cfbeb SHA-256: f18196247065ef47a9c430cba73df159d8e5f1c29c8b461c8f5cea180284d7d8
120 Risk Score

Malware Insights

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

The PDF contains numerous embedded links, a technique often used to redirect users to malicious websites. One critical heuristic identified a link to a known malicious redirector infrastructure at 'https://ttraff.com/pify?keyword=arati+sangrah+pdf'. The document body, though heavily obfuscated, also contains this URL, suggesting it is the primary lure. The presence of a large number of external PDF links also indicates a link farm, likely for SEO poisoning or to obscure the true malicious destination.

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=arati+sangrah+pdf
    • http://files.crushedmxbygmp.com/uploads/1/3/1/3/131398488/7958886.pdf
    • http://files.mindysmagicalbling.shop/uploads/1/3/1/3/131398140/vepukijixibajutilura.pdf
    • http://rekegi.wmswolvesband.com/uploads/1/3/1/4/131437792/399456.pdf
    • http://files.alyssadavisillustration.com/uploads/1/3/1/6/131637240/8c1387.pdf
    • http://files.macnationcafetogo.com/uploads/1/3/1/4/131438330/c759534ba5c.pdf
    • https://cdn.shopify.com/s/files/1/0430/4296/3613/files/93566771443.pdf
    • https://cdn.shopify.com/s/files/1/0428/2269/7126/files/8734770495.pdf
    • https://cdn.shopify.com/s/files/1/0431/8085/1364/files/32426481911.pdf
    • https://cdn.shopify.com/s/files/1/0433/8063/7859/files/pagopuxegibubevu.pdf
    • https://cdn.shopify.com/s/files/1/0431/1482/3844/files/56960240857.pdf
    • https://cdn.shopify.com/s/files/1/0441/3734/9272/files/gw2_necromancer_builds.pdf
    • https://cdn.shopify.com/s/files/1/0430/8962/5250/files/19093941086.pdf
    • https://cdn.shopify.com/s/files/1/0428/4094/8892/files/david_icke_book.pdf
    • https://cdn.shopify.com/s/files/1/0433/0084/7781/files/12316919601.pdf
    • https://cdn.shopify.com/s/files/1/0439/8622/3262/files/96680289994.pdf
    • https://cdn.shopify.com/s/files/1/0438/2710/1853/files/82183680909.pdf
    • https://cdn.shopify.com/s/files/1/0435/3739/9960/files/52016317401.pdf
    • https://cdn.shopify.com/s/files/1/0440/4533/6726/files/riniberiwananizifesote.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_off00008ffd.bin
3f47e68a3e4caaf663e6a763558c3ba6c13c9e5e8696c355657513fe09e449eb
pdf-font-stream PDF embedded font (sfnt) at offset 0x8FFD 4820 bytes
font_01_sfnt_off0000a041.bin
35423bcf3df0b4f9516cbeb43f2a1c7a1a34cd06f524c20bbe1d1f4b7c8daab2
pdf-font-stream PDF embedded font (sfnt) at offset 0xA041 13572 bytes
font_02_sfnt_off0000cb5c.bin
9f355172d696dda274cac500966718f112ce76951f19577ac4888987ea6471b2
pdf-font-stream PDF embedded font (sfnt) at offset 0xCB5C 4324 bytes