Malicious PDF — malware analysis report

Static analysis result for SHA-256 bfa3bd0068d46a78…

MALICIOUS

PDF

116.6 KB Created: 2020-08-31 07:12:02 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 3536c5944b75429dc00444477361b39d SHA-1: e7a7986c23cf49743c351157a31e7a6ff7be6dfc SHA-256: bfa3bd0068d46a78232f6ed5e9eebf896e82e362d65c2dba82f4c23bec090273
152 Risk Score

Malware Insights

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

The PDF file contains embedded links that point to a known malicious redirector. The document body, though heavily obfuscated, contains text that appears to be a lure for 'Tekken 7 move list'. The heuristic PDF_MALICIOUS_REDIRECTOR_LINK strongly indicates malicious intent, likely to redirect the user to a phishing or malware distribution site.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9999

Heuristics 4

  • 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.
  • Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL
    The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
  • 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=tekken+7+move+list
    • https://static.usrfiles.com/ugd/c0fca2_c4181d4117794c0292ba998e7dc90c08.pdf
    • https://static.usrfiles.com/ugd/e745be_d474eae3110e461a8eb1071df36c1b6d.pdf
    • https://static.usrfiles.com/ugd/a838c0_bfd72a9d0417476c8cec13f1606cee01.pdf
    • https://static.usrfiles.com/ugd/ab0441_78d99958863e4172a9190af791ab9dd6.pdf
    • https://static.usrfiles.com/ugd/de3d83_00f145e47d8e471080a2c7c2edac7caf.pdf
    • https://cdn.shopify.com/s/files/1/0434/0183/8757/files/phonics_book_1.pdf
    • https://cdn.shopify.com/s/files/1/0430/4892/7386/files/57440770665.pdf
    • https://static.usrfiles.com/ugd/b8c837_5914985513b54c4db41644b2db3b7418.pdf
    • https://static.usrfiles.com/ugd/9d66c7_d54383ee39bf4c418d351b28bc80dac4.pdf
    • https://cdn.shopify.com/s/files/1/0440/2610/1925/files/14017565504.pdf
    • https://cdn.shopify.com/s/files/1/0431/7242/9980/files/leketupovewafaxefozi.pdf
    • https://cdn.shopify.com/s/files/1/0432/5398/9534/files/16177939118.pdf
    • https://cdn.shopify.com/s/files/1/0431/9779/2420/files/wutugejatazuvasamus.pdf
    • https://cdn.shopify.com/s/files/1/0435/8062/0963/files/my_portfolio_on_aol.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 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000158e5.bin
107e6296532ad73cfab390d8b5655448f388fb25614d889d898cfa9e4b5b5b4e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x158E5 5024 bytes
font_01_sfnt_off00016aa0.bin
456d05c639fe63af5a7ae9804d7d83b9c3173eecf8a23f13fae3c2d38811ac54		 pdf-font-stream PDF embedded font (sfnt) at offset 0x16AA0 4680 bytes
font_02_sfnt_off00017a8a.bin
a26aa03010525150be2c2a5fa16c9e58da2f0e712b7566e7ebd54e4f195545b2		 pdf-font-stream PDF embedded font (sfnt) at offset 0x17A8A 16568 bytes
font_03_sfnt_off0001ad5d.bin
a858ad06ee9285ef990c8ccf5509e6bce71cae8afc7f99ba8a1dcaf33198b628		 pdf-font-stream PDF embedded font (sfnt) at offset 0x1AD5D 16684 bytes

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