Malicious PDF — malware analysis report

Static analysis result for SHA-256 7fea2395193b68f1…

MALICIOUS

PDF

42.2 KB Created: 2020-08-31 01:14:58 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 7ccb57fc1d9214d41dba93a54c81fd25 SHA-1: eef0f4804b625ff8bd5b3ac7563e7393c3822cf5 SHA-256: 7fea2395193b68f11c2165c3ba936e7c94e2854ffcab97db10205c811a0e342b
120 Risk Score

Malware Insights

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

The PDF file contains a heuristic firing for a malicious redirector link, pointing to a URL that promises a Windows 8.1 product key. This URL is likely part of a phishing or scam campaign designed to trick users into clicking through to a malicious site. The document body, though heavily corrupted, contains fragments of the lure text and the malicious URL. No scripts were extracted from this sample.

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=clave+de+producto+windows+8.1+single+language
    • https://cdn.shopify.com/s/files/1/0430/7966/3765/files/84467193560.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/larabobed.pdf
    • https://cdn.shopify.com/s/files/1/0432/5743/0176/files/10582508106.pdf
    • https://cdn.shopify.com/s/files/1/0431/3881/0023/files/20385372621.pdf
    • https://cdn.shopify.com/s/files/1/0440/1473/1429/files/sovimam.pdf
    • https://cdn.shopify.com/s/files/1/0432/5628/3296/files/psd_templates_wedding.pdf
    • https://cdn.shopify.com/s/files/1/0463/2500/6497/files/99168308241.pdf
    • https://cdn.shopify.com/s/files/1/0430/8631/5682/files/msp_hack_no_human_verification_or_survey_or_download_2018.pdf
    • https://static.usrfiles.com/ugd/ab922d_49ca39dbc8524922966e66cb2505e628.pdf
    • https://static.usrfiles.com/ugd/de3d83_93aa040727a64996afdf2e911e7b3ab4.pdf
    • https://static.usrfiles.com/ugd/2c8d66_cbc434821ba84523b74d4b6583db3ee3.pdf
    • https://static.usrfiles.com/ugd/b8c837_af6464475a5f4198af8e6c31fbcf5419.pdf
    • https://static.usrfiles.com/ugd/d902bb_dcf27f556e744435b53c7621fa0474d7.pdf
    • https://cdn.shopify.com/s/files/1/0437/8951/6958/files/front_page_wordpress_template.pdf
    • https://cdn.shopify.com/s/files/1/0431/7075/8816/files/fidefozezuvomujademowar.pdf
    • https://cdn.shopify.com/s/files/1/0429/6104/3605/files/82114949243.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_off000064ae.bin
d6c8824e845cdfb38c718dbbfbd15ea74bed4c218b17bc186883ccafcfc5c0e3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x64AE 5576 bytes
font_01_sfnt_off000077d6.bin
4ee5b7a52aa65ed4e7c579e17db66acfd07688bf86c1bcf83bf796997b54a48b		 pdf-font-stream PDF embedded font (sfnt) at offset 0x77D6 10764 bytes

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