Malicious PDF — malware analysis report

Static analysis result for SHA-256 f3bfac52e033007e…

MALICIOUS

PDF

41.2 KB Created: 2020-09-12 11:26:39 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: a8f9bcf438724ab0dea262ef40ae65ab SHA-1: 7e686b2b46c3577efc9ed1235b5ad2f03c5ff334 SHA-256: f3bfac52e033007ed3702a3863eb5f0dd97eeeceb450b74f9fb87a75677e1e6f
90 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing indicating a malicious redirector link to 'https://ttraff.club/wix?keyword=search+by+image+on+android+google'. The ML classifier also strongly flagged this PDF as malicious. While no scripts were extracted, the presence of the malicious URL strongly suggests an attempt to lure the user to a harmful site, likely for phishing or to download further malware.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9999

Heuristics 2

  • 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.
  • 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.club/wix?keyword=search+by+image+on+android+google
    • https://cdn.shopify.com/s/files/1/0430/8349/7623/files/65898997372.pdf
    • https://cdn.shopify.com/s/files/1/0434/2192/5525/files/fupat.pdf
    • https://cdn.shopify.com/s/files/1/0457/4422/6460/files/65608681975.pdf
    • https://static.usrfiles.com/ugd/3f4b99_39f24fca053f4285b0e963907d9b3890.pdf
    • https://cdn.shopify.com/s/files/1/0434/3041/2450/files/97602854510.pdf
    • https://cdn.shopify.com/s/files/1/0427/7354/5116/files/daxujutok.pdf
    • https://cdn.shopify.com/s/files/1/0428/7699/3695/files/84929719720.pdf
    • https://cdn.shopify.com/s/files/1/0431/8956/7650/files/95412896128.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_off00006383.bin
59926f438eb586935a10aba1e84ee8dcca8fbf7a503269d50ddb6b0cf85543ac
pdf-font-stream PDF embedded font (sfnt) at offset 0x6383 5520 bytes
font_01_sfnt_off00007620.bin
550d106deb2de86d824e9ad52eeff886679d4bc95abe6342b67f33fed2ed2cf8
pdf-font-stream PDF embedded font (sfnt) at offset 0x7620 9980 bytes