Malicious PDF — malware analysis report

Static analysis result for SHA-256 f8e9ee5c433a77d7…

MALICIOUS

PDF

39.6 KB Created: 2020-09-02 18:18:21 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 047f5f4a47d87de0d73c3ac6946ae580 SHA-1: d8f1d0fbb6224bfea3c433913046f238a6bd78cd SHA-256: f8e9ee5c433a77d72c282639a585a43a9f227673c9db58f66455eddae37e0281
150 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link pointing to 'ttraff.com'. The document body, though partially corrupted, contains text related to 'Hada labo premium sheet mask' and the malicious URL, suggesting a lure to a scam or phishing page. The PDF also exhibits characteristics of a link farm, embedding numerous external links, many of which point to benign Shopify URLs, likely to obscure the malicious one. 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.com/wix?keyword=hada+labo+premium+sheet+mask
    • https://cdn.shopify.com/s/files/1/0429/3941/6732/files/pwc_guide_to_doing_business_in_mexico.pdf
    • https://cdn.shopify.com/s/files/1/0432/2597/2904/files/48101442843.pdf
    • https://cdn.shopify.com/s/files/1/0464/5493/1624/files/simple_present_tense_rules_worksheet.pdf
    • https://cdn.shopify.com/s/files/1/0434/8579/0365/files/free_arizona_beneficiary_deed_form.pdf
    • https://cdn.shopify.com/s/files/1/0432/5684/0350/files/37906021100.pdf
    • https://static.usrfiles.com/ugd/9cc572_5f2785368ebf4d02ab26e29a84807d9a.pdf
    • https://static.usrfiles.com/ugd/bae363_b63e275521d5480580c3b17b50cf4c21.pdf
    • https://static.usrfiles.com/ugd/a64c8c_a5cd5aa91b734b1583e4e894d0123ea9.pdf
    • https://static.usrfiles.com/ugd/eed56f_033eec8ead3e4a579f17c01ce4fc1d4d.pdf
    • https://static.usrfiles.com/ugd/b8c837_6449315d0e44409598dd7ff201f59c26.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00004fd4.bin
9674f2b7cfd912759c01ce52f8816032c68a2fcfcc007d6e6d17851543e8712c		 pdf-font-stream PDF embedded font (sfnt) at offset 0x4FD4 3992 bytes
font_01_sfnt_off00005e04.bin
e3859cf189eeea0e9a00cfcb210d1ec76d6c2ff774453f036868afcf031350f7		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5E04 5364 bytes
font_02_sfnt_off00007006.bin
5cfadc085d04e910b9b4ac02372a49c3408cb14826d5705c55aa9b2ab3cbe978		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7006 9872 bytes

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