Malicious PDF — malware analysis report

Static analysis result for SHA-256 4404823dccdd50a3…

MALICIOUS

PDF

40.1 KB Created: 2020-09-01 05:00:43 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 7ec7e96804df984fe0c433259f1044b1 SHA-1: aa3fbd8209242a8e29067c365eb6f8b318c3a599 SHA-256: 4404823dccdd50a30a9c336ac7a4b545a231b45016b75f3037771e0a21de54e9
60 Risk Score

Malware Insights

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

The PDF file contains an embedded link that redirects to a known malicious URL. The document body is heavily obfuscated and appears to be junk data, but the presence of the malicious redirector is a strong indicator of malicious intent. The primary attack vector is likely a phishing lure or a drive-by download facilitated by the malicious redirector.

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.ru/wix?keyword=jinja+template+email
    • https://static.usrfiles.com/ugd/16a96a_b3ae103b3aaf4b0c827365cb12cf691b.pdf
    • https://static.usrfiles.com/ugd/286fb8_8374d9258869429582d10acf77a3a5c6.pdf
    • https://static.usrfiles.com/ugd/b8c837_004721e6029e43778513f5a4f5f0b2a1.pdf
    • https://static.usrfiles.com/ugd/cc03df_76b073d0626d410fba5271a5d8fdb471.pdf
    • https://cdn.shopify.com/s/files/1/0432/6732/6112/files/wigafafo.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/bumagigefabap.pdf
    • https://cdn.shopify.com/s/files/1/0431/8094/9659/files/bilolojikerawelojiguve.pdf
    • https://cdn.shopify.com/s/files/1/0435/9490/7810/files/semupimevakobozi.pdf
    • https://cdn.shopify.com/s/files/1/0434/8120/2854/files/83709507443.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_off000058ae.bin
1f9a941054f5caa766bd890e8bbba3346620e4ef448bccc25dd673cf6ea40988
pdf-font-stream PDF embedded font (sfnt) at offset 0x58AE 4756 bytes
font_01_sfnt_off000068d0.bin
2326c559f7258b7378400a9a9ca3f026d0bfa08897b7bcf29d7aed3a16764bb5
pdf-font-stream PDF embedded font (sfnt) at offset 0x68D0 13516 bytes