Malicious PDF — malware analysis report

Static analysis result for SHA-256 7edfda043b5b0094…

MALICIOUS

PDF

34.6 KB Created: 2020-08-07 19:01:11 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 5198125a919d6d22e49da34f16d09290 SHA-1: f95228f6c4f8bd73eb09ead9e3acfe3ccec66bf8 SHA-256: 7edfda043b5b009440362760eff0d2fc68a645493699e87254d3221199dcd53a
120 Risk Score

Malware Insights

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

The PDF file contains a significant number of embedded links, with a critical heuristic firing indicating a malicious redirector. The primary malicious URL identified is https://ttraff.com/pify?keyword=mo+better+blues+chords+pdf, which likely serves to obscure the ultimate destination of the attack. The document body itself is heavily obfuscated and contains numerous URLs, suggesting a link farm or redirection strategy to deliver a payload. 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/pify?keyword=mo+better+blues+chords+pdf
    • http://files.streetash.com/uploads/1/3/1/4/131453431/da5da7af1f.pdf
    • http://files.mendocinosportsclub.com/uploads/1/3/0/9/130969614/kisijekawili.pdf
    • http://files.sanctuarynotdeportation.org/uploads/1/3/1/0/131071019/gebinibajukibu.pdf
    • http://files.joelewczuk.com/uploads/1/3/0/7/130739180/potivusaruxoro_zowafufenaj.pdf
    • http://files.slingsandroundabouts.com.au/uploads/1/3/0/8/130814666/8e4b4.pdf
    • https://cdn.shopify.com/s/files/1/0433/8820/7254/files/53869164798.pdf
    • https://cdn.shopify.com/s/files/1/0434/4456/8216/files/causation_in_criminal_law.pdf
    • https://cdn.shopify.com/s/files/1/0427/9956/2911/files/15295010471.pdf
    • https://cdn.shopify.com/s/files/1/0427/7387/2807/files/24173762836.pdf
    • https://cdn.shopify.com/s/files/1/0428/6509/8908/files/53839243894.pdf
    • https://cdn.shopify.com/s/files/1/0434/2513/6792/files/definition_of_proximate_analysis.pdf
    • https://cdn.shopify.com/s/files/1/0430/3470/6083/files/jasojamopunolorusumuwet.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/dadimutixiwukigojubiw.pdf
    • https://cdn.shopify.com/s/files/1/0433/5504/6037/files/associativismo_e_organizaes_voluntrias.pdf
    • https://cdn.shopify.com/s/files/1/0433/9436/7644/files/barron_s_600_toeic_vocabulary.pdf
    • https://cdn.shopify.com/s/files/1/0435/6728/4383/files/rezobi.pdf
    • https://cdn.shopify.com/s/files/1/0431/8153/9483/files/zunazanuvitenejodet.pdf
    • https://cdn.shopify.com/s/files/1/0430/1501/2511/files/behringer_x32_owners_manual.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_off000048a3.bin
695b21f0c690fee796aef01cb41a279031c477f55a5292db216d94b19566c808
pdf-font-stream PDF embedded font (sfnt) at offset 0x48A3 5176 bytes
font_01_sfnt_off00005a3d.bin
801be614fdf094a2a8dd2f8db87b4c29abbbd802eaeeed341cd73d334ee26ca6
pdf-font-stream PDF embedded font (sfnt) at offset 0x5A3D 10588 bytes