Malicious PDF — malware analysis report

Static analysis result for SHA-256 cb9c8f24dabceb19…

MALICIOUS

PDF

42.0 KB Created: 2020-09-16 22:20:37 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 6a3fa678dc7ff1fcf05675f7b7b5d620 SHA-1: de5d02cabf66221c56e11414b6a9beb5fc6f80b9 SHA-256: cb9c8f24dabceb19dbd4739e2379bd2ba90f940f5dd06b02758921af2e70a74c
120 Risk Score

Malware Insights

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

The PDF document contains numerous embedded links, including a critical redirector link to 'ttraff.club' which is associated with malicious activity. The document body, though partially corrupted, contains text related to a 'fun run arena prize' and the URLs themselves suggest a lure to a potentially malicious site. The presence of a link farm further indicates a malicious intent to distribute links to various potentially compromised or malicious PDF files.

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.club/wix?keyword=how+to+hack+fun+run+arena+prize
    • http://nevezenu.saratogacoffeetraders.com/uploads/1/3/0/7/130739088/6045124.pdf
    • http://kiweraf.poodlesoftampabay.com/uploads/1/3/1/3/131398036/vilerox-xumurimon-mitirek-xerapobegumaket.pdf
    • http://wesozup.prakritidance.com/uploads/1/3/0/8/130873782/336e3cb02.pdf
    • http://files.anthonyjgrasso.com/uploads/1/3/1/3/131397927/6982247.pdf
    • http://files.breezybrigade.com/uploads/1/3/0/7/130776573/d622d68.pdf
    • http://widajufi.depthstiny.com/uploads/1/3/0/8/130814579/jajuvabegojenoj.pdf
    • http://zolirila.gracesiouxcity.org/uploads/1/3/2/7/132740352/781cdc310b3.pdf
    • http://files.poughkeepsiepopculture.com/uploads/1/3/0/7/130776058/690736.pdf
    • http://files.verticalgunracks.com/uploads/1/3/1/6/131606035/473729.pdf
    • http://files.michr.net/uploads/1/3/1/4/131438641/6176850.pdf
    • http://files.elitehall.org/uploads/1/3/0/8/130813100/589754.pdf
    • http://bavasu.totsandco.org/uploads/1/3/0/7/130776089/zuwir-gilatewil-sisas-fajid.pdf
    • https://cdn.shopify.com/s/files/1/0457/8190/9660/files/kosuw.pdf
    • https://cdn.shopify.com/s/files/1/0448/0620/9702/files/zonarajixid.pdf
    • https://cdn.shopify.com/s/files/1/0429/5078/7231/files/ditavamerosajewe.pdf
    • https://cdn.shopify.com/s/files/1/0434/3041/2437/files/simple_under_construction_html_page_free_download.pdf
    • https://cdn.shopify.com/s/files/1/0437/4023/3889/files/33063487492.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_off00006530.bin
465f01837d4e89818520b0ec8ad99fda4a92c49a078864b52cd3262ecc97cda9		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6530 5060 bytes
font_01_sfnt_off00007680.bin
3414c05a2d6d5273ae55d9d146bf2344812c69d1ac3400a0e3d709a371717c44		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7680 10728 bytes

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