Malicious PDF — malware analysis report

Static analysis result for SHA-256 e94ed3d09847ee3a…

MALICIOUS

PDF

40.9 KB Created: 2020-08-07 05:13:46 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: a52692e16fdaa6cf8df155447d7c2a7e SHA-1: 34743ad2534afc22820f114702872e37976a8ce5 SHA-256: e94ed3d09847ee3a74584159a9eb0ea22f8adc299dcfce29d77da18e6df3a40f
150 Risk Score

Malware Insights

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

The PDF contains a mass of external links, many pointing to Shopify domains, designed to appear as a legitimate resource. One critical heuristic firing indicates a link to known malicious redirector infrastructure, specifically 'https://ttraff.cc/pify?keyword=accounting+theory+and+practice+textbook+pdf'. This suggests the document is a lure to redirect users to malicious sites, likely for further exploitation or phishing. No scripts were extracted from this sample.

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.cc/pify?keyword=accounting+theory+and+practice+textbook+pdf
    • http://files.caitlincowan.com/uploads/1/3/1/6/131607467/4989708157f.pdf
    • http://files.allaboutkidsdaycare.us/uploads/1/3/1/6/131607075/654311.pdf
    • http://files.wiggleroom.org/uploads/1/3/2/3/132303151/5060151.pdf
    • https://cdn.shopify.com/s/files/1/0436/0280/4898/files/kewomuk.pdf
    • https://cdn.shopify.com/s/files/1/0439/8006/2878/files/22657473536.pdf
    • https://cdn.shopify.com/s/files/1/0438/3604/7525/files/simamera.pdf
    • https://cdn.shopify.com/s/files/1/0433/0009/4112/files/bizobomosituvimoluroparit.pdf
    • https://cdn.shopify.com/s/files/1/0429/1405/4300/files/53566290136.pdf
    • https://cdn.shopify.com/s/files/1/0433/3505/7559/files/nogodogapatokufuv.pdf
    • https://cdn.shopify.com/s/files/1/0436/0775/2861/files/1650372110.pdf
    • https://cdn.shopify.com/s/files/1/0434/8048/1954/files/cameroon_history_notes.pdf
    • https://cdn.shopify.com/s/files/1/0429/6497/5765/files/totiwanamovuramonupezete.pdf
    • https://cdn.shopify.com/s/files/1/0439/6895/4526/files/nolixijijepezuxojixal.pdf
    • https://cdn.shopify.com/s/files/1/0439/4464/0667/files/27852566445.pdf
    • https://cdn.shopify.com/s/files/1/0434/0239/5813/files/87876788402.pdf
    • https://cdn.shopify.com/s/files/1/0431/1918/1985/files/viduwiwikibijulemumoladol.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_off000060fb.bin
1e63f8fb20cb8743477b002c53d3af5a13dc619ead64a596a77408f4c28a9182		 pdf-font-stream PDF embedded font (sfnt) at offset 0x60FB 5572 bytes
font_01_sfnt_off000073f3.bin
2fc0508833b8730753ce33a73eb652cca01bf2a59b7cd29cfd0f7072111af07a		 pdf-font-stream PDF embedded font (sfnt) at offset 0x73F3 10112 bytes

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