Malicious PDF — malware analysis report

Static analysis result for SHA-256 d10a07d77b656363…

MALICIOUS

PDF

36.2 KB Created: 2020-08-02 02:12:32 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 8874d7f216d973cfe0d54f09368bad88 SHA-1: 6980b4bc83c9a5fb7bfd332311d2d4471fb841f2 SHA-256: d10a07d77b656363b5927e1dab743b088a79188c1aee9cefc09ded09fcc3bd8b
120 Risk Score

Malware Insights

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

The PDF file contains numerous links, many pointing to Shopify domains, but one critical link redirects to a known malicious domain. The document body text, though heavily obfuscated, contains the phrase '2007 chevy cobalt owners manual pdf' and the malicious URL, suggesting a lure to download a fake manual. The heuristic PDF_MALICIOUS_REDIRECTOR_LINK confirms the redirection to malicious infrastructure.

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.cc/pify?keyword=2007+chevy+cobalt+owners+manual+pdf
    • http://files.arts4health.net/uploads/1/3/0/7/130740563/gebedevozuko.pdf
    • http://files.chinesemartialartsmd.com/uploads/1/3/1/0/131071243/6620346.pdf
    • http://files.rusticridgelabs.com/uploads/1/3/1/4/131454523/0bcd63edbc.pdf
    • http://files.jakebuyshouses.us/uploads/1/3/0/7/130775897/6527367.pdf
    • http://files.yesandventure.com/uploads/1/3/1/4/131453695/tejizuzufetosa_xumerere_zijejupenup_wuresolebesix.pdf
    • https://cdn.shopify.com/s/files/1/0431/1823/1709/files/89131386857.pdf
    • https://cdn.shopify.com/s/files/1/0438/0704/7840/files/mixurutibiwuwudadixopexop.pdf
    • https://cdn.shopify.com/s/files/1/0448/0575/0946/files/zan_s_minimap_mod.pdf
    • https://cdn.shopify.com/s/files/1/0449/1676/8923/files/echo_srm_225_gas_oil_mix.pdf
    • https://cdn.shopify.com/s/files/1/0431/0332/2269/files/55101891483.pdf
    • https://cdn.shopify.com/s/files/1/0429/4970/5881/files/ruvuder.pdf
    • https://cdn.shopify.com/s/files/1/0437/0399/2485/files/43219373845.pdf
    • https://cdn.shopify.com/s/files/1/0430/8621/7383/files/62689512774.pdf
    • https://cdn.shopify.com/s/files/1/0430/4656/8098/files/59906074307.pdf
    • https://cdn.shopify.com/s/files/1/0434/4243/8310/files/pegekarezanaru.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/38746106010.pdf
    • https://cdn.shopify.com/s/files/1/0433/7192/1571/files/save_me_remy_zero.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_off00004e6a.bin
1d76802bddb2e8ef7fef7ff54790ea68d4cafd03b5a8fbe14dac817abbec3b54		 pdf-font-stream PDF embedded font (sfnt) at offset 0x4E6A 6048 bytes
font_01_sfnt_off000062ec.bin
1cd207b864a5b21adcf0e58d715ef5fb0ff1ec60df8380c13af226580b228b83		 pdf-font-stream PDF embedded font (sfnt) at offset 0x62EC 9536 bytes

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