Malicious PDF — malware analysis report

Static analysis result for SHA-256 3c1fc01dd41a01f6…

MALICIOUS

PDF

45.3 KB Created: 2020-08-10 04:05:01 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 6c38043462d06d18b0f70b9f07d738ea SHA-1: a6fb0735049fa724abeefcea1be84e795957f76c SHA-256: 3c1fc01dd41a01f6d19a79a81a193e665d88198deb1024cffe92203577ceb799
120 Risk Score

Malware Insights

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

The PDF contains a mass of external links, many pointing to Shopify domains, but one critical link redirects to a known malicious infrastructure at ttraff.com. The document body, though heavily obfuscated, contains the URL and keywords suggesting a lure for a drug guide. This indicates the PDF is likely a link farm used to distribute malware or phish users, with the primary malicious URL being the redirector.

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=ondansetron+davis+drug+guide+pdf
    • http://files.bcigaragedoor.com/uploads/1/3/1/1/131164431/gerifomedetosi-pudaxaraxejure-nadelitejurejox-xurafunewifitu.pdf
    • http://risub.dw-nz-gifts-in-native-timbers.com/uploads/1/3/0/8/130874254/f21b0742.pdf
    • http://files.jcmconference.org/uploads/1/3/1/1/131164112/tetipibe_salekodag_ramunu.pdf
    • http://files.jbowerengraving.com/uploads/1/3/0/7/130775276/rupototanu.pdf
    • http://files.phuketfishingcharters.net/uploads/1/3/1/0/131070597/gazupe-jupatikaj-mobonaro-xiwulite.pdf
    • http://files.jcmconference.org/uploads/1/3
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/favubedezemopazejive.pdf
    • https://cdn.shopify.com/s/files/1/0431/5525/9546/files/calendario_laboral_2020_baleares.pdf
    • https://cdn.shopify.com/s/files/1/0432/8030/2240/files/xovogoxozeretoxenitari.pdf
    • https://cdn.shopify.com/s/files/1/0428/8105/6935/files/89994396451.pdf
    • https://cdn.shopify.com/s/files/1/0428/6382/0959/files/58946207581.pdf
    • https://cdn.shopify.com/s/files/1/0430/7773/0464/files/64946702054.pdf
    • https://cdn.shopify.com/s/files/1/0434/4843/4840/files/installing_crouton_on_chromebook.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/12410546401.pdf
    • https://cdn.shopify.com/s/files/1/0429/8702/8641/files/wawekoxomu.pdf
    • https://cdn.shopify.com/s/files/1/0430/8752/8103/files/31500392978.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_off000073fa.bin
159469ebe7c2ce76428409b099740cc869de4bde87a10822f197abed66ffbbb9		 pdf-font-stream PDF embedded font (sfnt) at offset 0x73FA 5264 bytes
font_01_sfnt_off000085fb.bin
01ba567fdbb9648e00f5f9dbdd9cf2e754b4ff37b4cc8013c015685437e0f597		 pdf-font-stream PDF embedded font (sfnt) at offset 0x85FB 9996 bytes

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