Malicious PDF — malware analysis report

Static analysis result for SHA-256 c7694a750ba61518…

MALICIOUS

PDF

46.5 KB Created: 2020-08-03 06:54:55 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 49fb50d3f424bea8d1bd269f263a9d48 SHA-1: aeb06d96c67ca648ed1a9f151520c3555d676be4 SHA-256: c7694a750ba615185628d8370e6da0282b5e59fb59b4bd0b80a5ab1a1e458fad
120 Risk Score

Malware Insights

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

The PDF contains a heuristic firing for a malicious redirector link pointing to 'ttraff.com'. Additionally, it exhibits characteristics of a PDF link farm, with numerous embedded links, many hosted on 'cdn.shopify.com'. The document body, though heavily obfuscated, contains the same redirector URL and a Shopify URL, suggesting a lure to external content. The primary attack pattern involves directing users to malicious infrastructure.

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=reddit+eight+bit+bailey
    • http://rutijozi.whareafire.com/uploads/1/3/1/3/131380845/3776339.pdf
    • http://files.roeyebert.com/uploads/1/3/0/7/130776131/biwev.pdf
    • http://files.islandbeautyportland.com/uploads/1/3/0/9/130969243/522dd448b29a.pdf
    • http://files.bellebookandcandle.org/uploads/1/3/1/6/131607075/3137221.pdf
    • http://files.madislandlibrary.org/uploads/1/3/1/3/131384401/zafuda-guvetode.pdf
    • https://cdn.shopify.com/s/files/1/0434/3883/3816/files/dawujerikosafu.pdf
    • https://cdn.shopify.com/s/files/1/0439/1682/0635/files/45658312677.pdf
    • https://cdn.shopify.com/s/files/1/0429/1880/5657/files/mugen_vore_characters.pdf
    • https://cdn.shopify.com/s/files/1/0432/1830/5179/files/27353781593.pdf
    • https://cdn.shopify.com/s/files/1/0434/4102/9276/files/setumaravegurukive.pdf
    • https://cdn.shopify.com/s/files/1/0430/2739/8807/files/vujedibasi.pdf
    • https://cdn.shopify.com/s/files/1/0427/6974/4028/files/75906848773.pdf
    • https://cdn.shopify.com/s/files/1/0427/5086/9671/files/mamuxerurujopuremasinufos.pdf
    • https://cdn.shopify.com/s/files/1/0429/3135/5807/files/jivugepa.pdf
    • https://cdn.shopify.com/s/files/1/0433/6753/0655/files/pegepivifanakufewukexe.pdf
    • https://cdn.shopify.com/s/files/1/0432/5467/7662/files/ruwelekefugujebelidelokej.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_off00007687.bin
64217d751e0e6b84d1e0ba23d817fbfe177dd598f5905f77dd68329ed257860e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7687 5060 bytes
font_01_sfnt_off000087cf.bin
123d0840ce8246a5f684ad97d76fea9f097d841b85e95b6ac68c81f2e5611dad		 pdf-font-stream PDF embedded font (sfnt) at offset 0x87CF 10960 bytes

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