Malicious PDF — malware analysis report

Static analysis result for SHA-256 fe246de7ac8f0a17…

MALICIOUS

PDF

40.3 KB Created: 2020-08-03 04:54:22 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 71fa5887c791cbee496261b85039ae19 SHA-1: 1bfc2731b27814a89af590c72a69401fcc58ce6f SHA-256: fe246de7ac8f0a17f8b44c479b618875b716da9a0c8f58c7700cefe909def14e
120 Risk Score

Malware Insights

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

The PDF contains a link that redirects to a known malicious infrastructure, disguised with a lure related to 'Gta 5 mods ps3 usb'. The document also contains a large number of links to other PDFs, suggesting a link farm for SEO manipulation or to distribute further malicious content. The primary malicious IOC is the redirector URL.

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=gta+5+mods+ps3+usb
    • http://files.lukegasser.com/uploads/1/3/1/3/131380305/didoduro-laxazuvuzeguru-gifavik.pdf
    • http://files.msbutchersclassroom.com/uploads/1/3/0/8/130874416/makokomaxisu_gafage.pdf
    • http://sevus.legacycustomwoodworks.com/uploads/1/3/0/8/130874493/ceb6dad0.pdf
    • http://files.myprequalifiedleads.com/uploads/1/3/0/8/130814258/foxoditumabazu_tonitefokozivo_luside_fexigiza.pdf
    • http://files.whistlingfrogresort.com/uploads/1/3/2/6/132681002/masaberilanimubaloji.pdf
    • https://cdn.shopify.com/s/files/1/0439/2094/9403/files/convert_flv_to_mp3.pdf
    • https://cdn.shopify.com/s/files/1/0431/5486/6333/files/taxefogafag.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/96328102714.pdf
    • https://cdn.shopify.com/s/files/1/0435/9107/3947/files/lanutovoletagijekawa.pdf
    • https://cdn.shopify.com/s/files/1/0430/5528/4378/files/24820529875.pdf
    • https://cdn.shopify.com/s/files/1/0433/4734/5573/files/18873583198.pdf
    • https://cdn.shopify.com/s/files/1/0436/0182/1859/files/61340880245.pdf
    • https://cdn.shopify.com/s/files/1/0430/1760/1181/files/50704692949.pdf
    • https://cdn.shopify.com/s/files/1/0437/3577/7445/files/95139927349.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/40573574370.pdf
    • https://cdn.shopify.com/s/files/1/0427/4287/4278/files/29061080744.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_off00005110.bin
11bee727756358508333579bdc4b255e24f17a30ea67d5aa83fa5def73d38064		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5110 4096 bytes
font_01_sfnt_off00005f8b.bin
2504ed81dce59a70a5a13ed8a6fe4c7d9e8bc193ca076a6d7c4e5adfaa505e49		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5F8B 5436 bytes
font_02_sfnt_off000071f6.bin
55d6ac60e13b815264fab5b7ef32dc4bd1388ef30fa02db38a816ce8e6af252c		 pdf-font-stream PDF embedded font (sfnt) at offset 0x71F6 9956 bytes

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