Malicious PDF — malware analysis report

Static analysis result for SHA-256 ee2a6f84b6b6658a…

MALICIOUS

PDF

46.2 KB Created: 2020-08-08 19:00:44 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 3b041ccf82714a7dcd1fa34260aedd02 SHA-1: e749dfe50a52e5df5937f15e40538a2a26f02f6e SHA-256: ee2a6f84b6b6658a1b5c9306f837439cd4fca4eb047831e0b81558df0c64cbe4
120 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF file contains a significant number of embedded links, with one identified as a malicious redirector. The heuristic 'PDF_SEO_LINK_FARM' indicates a mass of external PDF links, suggesting an attempt to manipulate search engine results or distribute content through a large network of linked documents. The primary malicious URL identified is https://ttraff.ru/pify?keyword=discussion+text+pdf, which likely serves as a gateway to malicious content. No scripts were extracted from this sample.

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.ru/pify?keyword=discussion+text+pdf
    • http://files.thepsychedelictheatre.com/uploads/1/3/1/8/131856987/gewisasix.pdf
    • http://files.gentlegiantdesign.org/uploads/1/3/1/3/131383949/kalaronepuko.pdf
    • http://pixati.topnotchdjservice.com/uploads/1/3/1/6/131607131/cc7176f.pdf
    • http://files.hillcountrywoodshop.com/uploads/1/3/0/7/130740196/93641.pdf
    • http://files.davescucina.com/uploads/1/3/1/4/131437937/250bdb2bd0aa18.pdf
    • https://cdn.shopify.com/s/files/1/0428/0988/4838/files/simevenalunixesasosorapaw.pdf
    • https://cdn.shopify.com/s/files/1/0435/3120/6808/files/wilakekunitujalumov.pdf
    • https://cdn.shopify.com/s/files/1/0435/5942/0063/files/vimojimuvezanawozulagi.pdf
    • https://cdn.shopify.com/s/files/1/0439/7580/3038/files/mulezada.pdf
    • https://cdn.shopify.com/s/files/1/0434/1740/3559/files/jarifelojukapezem.pdf
    • https://cdn.shopify.com/s/files/1/0428/5513/7447/files/25847147044.pdf
    • https://cdn.shopify.com/s/files/1/0430/0803/2922/files/66024849387.pdf
    • https://cdn.shopify.com/s/files/1/0427/7587/1654/files/netogerobomovoj.pdf
    • https://cdn.shopify.com/s/files/1/0432/0549/2904/files/nesur.pdf
    • https://cdn.shopify.com/s/files/1/0432/0939/2285/files/betaxiduzexegakugefadel.pdf
    • https://cdn.shopify.com/s/files/1/0438/9876/5480/files/gokibalizadusumu.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_off00007a5f.bin
1759d1a963128abb4fefd40160062aa948ccbf0c25fa39e41b1e1c0e57347012		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7A5F 4880 bytes
font_01_sfnt_off00008b21.bin
afc18abe101345caa28bced384a4006dd3a2c08e9939ba236eca96336cbef5d6		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8B21 9796 bytes

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