Malicious PDF — malware analysis report

Static analysis result for SHA-256 1efc253a73aff82c…

MALICIOUS

PDF

41.8 KB Created: 2020-08-05 05:39:49 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 6ed37818403dfaa0302b67118ccd81cc SHA-1: 7156e7692974233e3c6b36b6858c90c26f968e2d SHA-256: 1efc253a73aff82c3a64f9862e6393675701d9094d196f9f1bf4c1c6e11c2ca1
120 Risk Score

Malware Insights

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

The PDF contains a link farm and a specific URL that redirects to a malicious domain, likely to lure users into a phishing or scam scheme. The document body text, though partially corrupted, contains keywords related to finance and blockchain, suggesting a pretext for the malicious link. The heuristic PDF_MALICIOUS_REDIRECTOR_LINK confirms the redirection to a known 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.com/pify?keyword=goldman+sachs+blockchain+pdf+2020
    • http://files.dianesawatzkyphotography.com/uploads/1/3/0/9/130969768/madosivijukusarazi.pdf
    • http://files.palmcoastflautorepair.com/uploads/1/3/1/8/131856186/metegug_sogokasipegoka_fedasile_buwuwakapol.pdf
    • http://files.harderscharters.com/uploads/1/3/0/7/130775588/belonulole-repite-belexavo-pisufukunikufip.pdf
    • https://cdn.shopify.com/s/files/1/0432/9691/5621/files/90529608241.pdf
    • https://cdn.shopify.com/s/files/1/0435/8491/3563/files/44277152469.pdf
    • https://cdn.shopify.com/s/files/1/0432/4841/8973/files/mavizaxitegopumemo.pdf
    • https://cdn.shopify.com/s/files/1/0436/8711/6965/files/american_sniper_torrent.pdf
    • https://cdn.shopify.com/s/files/1/0429/5147/5351/files/datidiwi.pdf
    • https://cdn.shopify.com/s/files/1/0428/3518/1734/files/sapupenafubidexurexizidoj.pdf
    • https://cdn.shopify.com/s/files/1/0431/0673/0138/files/ponoropojebaleboz.pdf
    • https://cdn.shopify.com/s/files/1/0434/5715/1129/files/20053331328.pdf
    • https://cdn.shopify.com/s/files/1/0431/8799/4792/files/93478121834.pdf
    • https://cdn.shopify.com/s/files/1/0433/1149/7366/files/79996631040.pdf
    • https://cdn.shopify.com/s/files/1/0432/2702/1480/files/69233647411.pdf
    • https://cdn.shopify.com/s/files/1/0429/1385/7692/files/38662348880.pdf
    • https://cdn.shopify.com/s/files/1/0438/3549/0461/files/37887457900.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_off000062f6.bin
3c83a708e5bb52197d81778afca9855463308d2c872cf2b1f20bc0c8917bdd0c		 pdf-font-stream PDF embedded font (sfnt) at offset 0x62F6 5808 bytes
font_01_sfnt_off00007697.bin
5483f9ec78be21c0783db138f8b8432699d09baf277e05dce205633d3d1cbf86		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7697 10536 bytes

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