Malicious PDF — malware analysis report

Static analysis result for SHA-256 aee145a9b91c3241…

MALICIOUS

PDF

41.6 KB Created: 2020-08-26 12:32:00 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 50e0fa4c43f723eccb54bc2e818b78b7 SHA-1: 565b318fde430f3a98a0426965327416ac17bea0 SHA-256: aee145a9b91c32414f79dd761067fd34e888a8c1be349bf9423e97318492ea79
120 Risk Score

Malware Insights

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

The PDF file contains a critical heuristic firing for a malicious redirector link, specifically pointing to a lure for 'soundtoys vst crack'. The document body, though heavily obfuscated, also contains a reference to the same URL. This indicates the primary purpose is to redirect users to potentially malicious content, likely for software piracy or further malware delivery.

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=soundtoys+vst+crack
    • http://files.straffordparkhoa.com/uploads/1/3/1/4/131437363/penoxoremasatu_xufaxomabejak_xidikijux_fosage.pdf
    • https://cdn.shopify.com/s/files/1/0435/6079/6318/files/72439773198.pdf
    • https://cdn.shopify.com/s/files/1/0431/5014/7733/files/toxokusapigaxepenetino.pdf
    • https://cdn.shopify.com/s/files/1/0434/9798/0056/files/new_braunfels_newspaper_obituaries.pdf
    • https://cdn.shopify.com/s/files/1/0428/7207/8499/files/34387396750.pdf
    • https://cdn.shopify.com/s/files/1/0434/7245/3797/files/braun_ear_thermometer_manual_6520.pdf
    • https://cdn.shopify.com/s/files/1/0430/5725/0455/files/pixelbook_vs_pixel_slate.pdf
    • https://cdn.shopify.com/s/files/1/0432/2469/4942/files/vaxibinibak.pdf
    • https://cdn.shopify.com/s/files/1/0437/0599/1322/files/xilezolojifasamezipufif.pdf
    • https://cdn.shopify.com/s/files/1/0429/9145/2314/files/format_currency_in_jasper_report.pdf
    • https://cdn.shopify.com/s/files/1/0429/9502/4033/files/kesotud.pdf
    • https://cdn.shopify.com/s/files/1/0434/5013/8784/files/wadozokikomexezu.pdf
    • https://cdn.shopify.com/s/files/1/0434/1760/0156/files/bupigikadesire.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_off000065cb.bin
65b372ddd11fc545b862db31ad66b9e260d35dfce4e061bec5dd75c7a1baee7b		 pdf-font-stream PDF embedded font (sfnt) at offset 0x65CB 5232 bytes
font_01_sfnt_off000077ae.bin
832635a4961afe2012bf0d1a1def97f157906481a4a8b1a67b76408865d5b02b		 pdf-font-stream PDF embedded font (sfnt) at offset 0x77AE 10096 bytes

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