Malicious PDF — malware analysis report

Static analysis result for SHA-256 3cade632a6d321b8…

MALICIOUS

PDF

42.0 KB Created: 2020-08-18 19:28:01 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 5cb932042b58934f11c12535eff41156 SHA-1: 1584162a0676397bb40d54c7104308c60ee31231 SHA-256: 3cade632a6d321b8530be304e7454fbd05238e69cf270afda1a4dd3abc559720
120 Risk Score

Malware Insights

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

The PDF contains a mass of external links, many pointing to Shopify domains, designed to appear as legitimate documents or maps. One prominent link, 'https://ttraff.ru/pify?keyword=oslo+central+station+platform+map', redirects to known malicious infrastructure. This indicates a link farm or SEO poisoning tactic to drive traffic to malicious sites.

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.ru/pify?keyword=oslo+central+station+platform+map
    • http://gajer.lisacorbit.com/uploads/1/3/0/7/130740169/bb646.pdf
    • http://files.circlesofnature.com/uploads/1/3/1/4/131408142/884cf9f2fb9.pdf
    • https://cdn.shopify.com/s/files/1/0434/1825/5510/files/bogidozi.pdf
    • https://cdn.shopify.com/s/files/1/0429/0864/7580/files/kekelejujowewatu.pdf
    • https://cdn.shopify.com/s/files/1/0432/7194/6398/files/vaziv.pdf
    • https://cdn.shopify.com/s/files/1/0434/8461/0712/files/soririmezarure.pdf
    • https://cdn.shopify.com/s/files/1/0430/7333/9559/files/pojimibusaxevepukixudol.pdf
    • https://cdn.shopify.com/s/files/1/0431/8576/6564/files/diladijomoju.pdf
    • https://cdn.shopify.com/s/files/1/0437/4121/6917/files/rutefunixinu.pdf
    • https://cdn.shopify.com/s/files/1/0435/6145/1681/files/adobe_reader_scan_to.pdf
    • https://cdn.shopify.com/s/files/1/0437/3371/3050/files/bowumodavazaxobuwavat.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_off000067dc.bin
669220e8f3f31d5d2b5b72d2fad8417b6484d0261ce44c4801b797ce78f3c947		 pdf-font-stream PDF embedded font (sfnt) at offset 0x67DC 5188 bytes
font_01_sfnt_off00007964.bin
89a6ca6bd3db12a7eba7e9a5acebae0de38ff31e146433dcdb21819e3e6564fd		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7964 9888 bytes

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