Malicious PDF — malware analysis report

Static analysis result for SHA-256 8a68d4d5915ecebf…

MALICIOUS

PDF

51.3 KB Created: 2020-08-30 02:16:09 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: bb0828ab16d955aac617475dd50da0d6 SHA-1: 966c196b2836b060bbfbc358608c4f911a9ce424 SHA-256: 8a68d4d5915ecebff7bea9bbe234980f781e6fa1ca6c297423e9bd54c853042a
150 Risk Score

Malware Insights

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

The PDF file contains a critical heuristic firing for a malicious redirector link pointing to 'ttraff.com'. Additionally, it exhibits characteristics of a PDF link farm, with numerous embedded URLs, many hosted on Shopify. The ML classifier also strongly flagged this PDF as malicious. The primary malicious IOC is the redirector URL, which is likely used to funnel victims to a phishing or malware delivery site.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

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/wix?keyword=carburador+bocar+2+gargantas+para+ts
    • https://cdn.shopify.com/s/files/1/0439/6164/7262/files/sekadajefikekamofow.pdf
    • https://cdn.shopify.com/s/files/1/0429/9754/7157/files/86164288727.pdf
    • https://cdn.shopify.com/s/files/1/0435/5591/3879/files/desoroleti.pdf
    • https://cdn.shopify.com/s/files/1/0445/1752/3615/files/convert_to_rich_text.pdf
    • https://cdn.shopify.com/s/files/1/0433/9056/6556/files/1999_chrysler_300m_owners_manual.pdf
    • https://cdn.shopify.com/s/files/1/0432/5320/3102/files/.pdf
    • https://cdn.shopify.com/s/files/1/0435/4621/4564/files/treble_booster_app_for_android_phone.pdf
    • https://cdn.shopify.com/s/files/1/0462/3764/7002/files/85056433054.pdf
    • https://cdn.shopify.com/s/files/1/0432/9259/0236/files/fedaxomikiponuwug.pdf
    • https://cdn.shopify.com/s/files/1/0432/0133/1360/files/dagurijave.pdf
    • https://cdn.shopify.com/s/files/1/0433/6533/5190/files/77659186631.pdf
    • https://cdn.shopify.com/s/files/1/0430/9064/1045/files/anthony_weston_ethics.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_off000081ca.bin
ccf920393b114dddc74fc5f12ea32584f9104a126a26d74c032ab50438f888c3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x81CA 5388 bytes
font_01_sfnt_off00009422.bin
ade72963279005acaf6629fa0d892cf5d906129051d6c1a5dad8d5384409c32d		 pdf-font-stream PDF embedded font (sfnt) at offset 0x9422 13528 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.