Malicious PDF — malware analysis report

Static analysis result for SHA-256 bb26cbee1990cdc5…

MALICIOUS

PDF

52.4 KB Created: 2020-08-06 17:15:39 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 60c570d58af5603187e6a02a308a13f9 SHA-1: 96c140d55efd3ec0ed1f8a0ca31765403ba5c370 SHA-256: bb26cbee1990cdc5ecb24e6893a6ea30c5d73a63f48d2a4732739abf8e2e769d
120 Risk Score

Malware Insights

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

The PDF contains a large number of embedded links, with one specifically identified as a malicious redirector. The document body, though heavily obfuscated, contains the URL 'https://ttraff.cc/pify?keyword=tinker+tailor+soldier+spy+pdf+free', which is a known malicious redirector. This suggests the document's primary purpose is to redirect users to malicious sites, likely for phishing or malware distribution. The presence of numerous shopify.com links indicates an attempt to blend in with legitimate content.

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=tinker+tailor+soldier+spy+pdf+free
    • http://files.missfluff.com/uploads/1/3/2/6/132681508/fifaxomon-foketit-xeratok.pdf
    • http://files.artworksonthesummit.org/uploads/1/3/1/0/131070452/4824d345a.pdf
    • http://files.larowing.com/uploads/1/3/1/0/131070161/kikufakekobi.pdf
    • http://files.annasboldjewellerydesign.com/uploads/1/3/2/7/132740338/pakofibujuputi.pdf
    • http://files.unparalleledtransformation.com/uploads/1/3/1/3/131383358/gukafamedimi.pdf
    • https://cdn.shopify.com/s/files/1/0431/1603/6249/files/gotekinawa.pdf
    • https://cdn.shopify.com/s/files/1/0431/9916/8673/files/kagezonagagadek.pdf
    • https://cdn.shopify.com/s/files/1/0431/3595/9191/files/21342263177.pdf
    • https://cdn.shopify.com/s/files/1/0433/6753/0657/files/haskell_foldl_vs_foldr.pdf
    • https://cdn.shopify.com/s/files/1/0435/5552/0667/files/vezazivejobuvewipet.pdf
    • https://cdn.shopify.com/s/files/1/0433/5645/5067/files/xemakopakek.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/71482320097.pdf
    • https://cdn.shopify.com/s/files/1/0434/7599/2728/files/68165591673.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/58085676994.pdf
    • https://cdn.shopify.com/s/files/1/0434/3549/1490/files/syracuse_weather_10_day_forecast.pdf
    • https://cdn.shopify.com/s/files/1/0437/9102/4280/files/ffmpeg_convert_to_mp3.pdf
    • https://cdn.shopify.com/s/files/1/0432/5074/5512/files/71982993539.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_off00009067.bin
852b491b68ab1d5afa55b187bd52e7e3b114bc18c464feab284b605de40eb509
pdf-font-stream PDF embedded font (sfnt) at offset 0x9067 5148 bytes
font_01_sfnt_off0000a207.bin
ce4e50237d3a1e3f2c7c05d250c33719310ccf59923f69aa24161d853972031f
pdf-font-stream PDF embedded font (sfnt) at offset 0xA207 10076 bytes