Malicious PDF — malware analysis report

Static analysis result for SHA-256 ceb0b9925cca4e64…

MALICIOUS

PDF

38.6 KB Created: 2020-08-12 12:56:50 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 42413bae8454600c227cc1acfc28190b SHA-1: cd7b94a4109a1695b9d170ab941ab89522bf3758 SHA-256: ceb0b9925cca4e648d782ffc33dcee453b6dc92a89979fa12db154d999605bbf
120 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF contains numerous embedded links, with one heuristic specifically flagging it as a malicious redirector. The document body, though garbled, contains text related to a 'cheddars erie pa menu pdf', suggesting a lure. The primary malicious URL identified is ttraff.com, which is used in conjunction with a keyword that mimics a legitimate document title. The presence of a link farm further supports the malicious intent.

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=cheddars+erie+pa+menu+pdf
    • http://files.chathamhigh1969.com/uploads/1/3/1/3/131381518/pijikizivoja-wobuzedimota-futalutini.pdf
    • http://lalukum.stlouistriathlon.com/uploads/1/3/0/7/130775129/6745864.pdf
    • http://files.franklywines.com/uploads/1/3/0/8/130814258/rufozoxibanujaz.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/fatexuxutul.pdf
    • https://cdn.shopify.com/s/files/1/0430/6819/4978/files/lolixeselibi.pdf
    • https://cdn.shopify.com/s/files/1/0435/8435/6507/files/42598011730.pdf
    • https://cdn.shopify.com/s/files/1/0432/1017/8717/files/gaxenibitulefojegobare.pdf
    • https://cdn.shopify.com/s/files/1/0433/2450/6266/files/visotevizilebotulu.pdf
    • https://cdn.shopify.com/s/files/1/0433/6680/9765/files/20750812812.pdf
    • https://cdn.shopify.com/s/files/1/0434/7792/6040/files/finagenadimodido.pdf
    • https://cdn.shopify.com/s/files/1/0430/0495/2735/files/53318233296.pdf
    • https://cdn.shopify.com/s/files/1/0441/2496/2968/files/libro_ciencia_de_los_materiales_dentales_phillips.pdf
    • https://cdn.shopify.com/s/files/1/0430/9801/3845/files/nanotechnology_in_drug_delivery_system.pdf
    • https://cdn.shopify.com/s/files/1/0435/6987/3054/files/josofoxobirusubujuzekolak.pdf
    • https://cdn.shopify.com/s/files/1/0433/9964/3286/files/49750188062.pdf
    • https://cdn.shopify.com/s/files/1/0430/4578/1658/files/xamixesebimidudaj.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_off00004c85.bin
62d939f98c170376414a531d51a32a38539651134a333d071416d9c7638ef835		 pdf-font-stream PDF embedded font (sfnt) at offset 0x4C85 5152 bytes
font_01_sfnt_off00005de7.bin
d255f561cfc8b993da8b258dfaf1d68892ac3f7f5aa700fdbd9fdde27f31cc40		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5DE7 14620 bytes

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