Malicious PDF — malware analysis report

Static analysis result for SHA-256 7c727e5c1a1b1c52…

MALICIOUS

PDF

87.6 KB Created: 2020-08-01 21:00:41 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 120ab9588ac620d22cea39fb82612b60 SHA-1: 8edaeac614966c81df7ac4af318892f67403caaa SHA-256: 7c727e5c1a1b1c5205934e4bb84ee5a7cff8da0803330bef9212714a93110320
128 Risk Score

Malware Insights

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

The PDF file contains a link that redirects to a known malicious URL, identified by the PDF_MALICIOUS_REDIRECTOR_LINK heuristic. The document body, though heavily obfuscated, contains text related to 'Rise of the Tomb Raider cheats' and the malicious URL itself, suggesting a lure to entice users to click. The PDF_SEO_LINK_FARM heuristic indicates a large number of outbound links, likely for SEO manipulation or to distribute the malicious payload across multiple domains.

Heuristics 4

  • 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.
  • Urgency / deadline lure low SE_URGENCY_LURE
    Document contains urgency or deadline language ('account will be terminated', 'action required within 24 hours', etc.) — useful context, but low-signal without other findings
  • 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=rise+of+the+tomb+raider+cheats
    • http://files.metroacc.com/uploads/1/3/0/8/130874023/livobikuxerepom-jesufepevagopi-xotek-moxolovuveda.pdf
    • http://files.brainintegration.net/uploads/1/3/2/7/132712034/7170868.pdf
    • http://files.pcarep.com/uploads/1/3/0/7/130776542/kegufateren-rogujemufozexop.pdf
    • https://cdn.shopify.com/s/files/1/0436/3537/6281/files/21831015554.pdf
    • https://cdn.shopify.com/s/files/1/0431/4012/0733/files/3505943792.pdf
    • https://cdn.shopify.com/s/files/1/0437/3427/0117/files/gatekuw.pdf
    • https://cdn.shopify.com/s/files/1/0434/1307/8168/files/nigemofezamu.pdf
    • https://cdn.shopify.com/s/files/1/0429/5829/1093/files/3158893953.pdf
    • https://cdn.shopify.com/s/files/1/0428/1873/2191/files/walanuribuwisasiruwonat.pdf
    • https://cdn.shopify.com/s/files/1/0432/5592/2856/files/liwititasedafebigo.pdf
    • https://cdn.shopify.com/s/files/1/0434/9575/1842/files/mebosoletuwekopig.pdf
    • https://cdn.shopify.com/s/files/1/0436/2865/8848/files/16750180072.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/nadogenomaxijedunebenez.pdf
    • https://cdn.shopify.com/s/files/1/0430/5184/3737/files/dekiguleduk.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_off00011bcf.bin
bb304cf6fa43a7ea075fe58b4846e80bee9cb68da96bec19dd4186e7bbf81f2a		 pdf-font-stream PDF embedded font (sfnt) at offset 0x11BCF 5376 bytes
font_01_sfnt_off00012def.bin
2a567ec9d90f43e49c930718048b4689ba494ecebdc8d373dcfc282f45451602		 pdf-font-stream PDF embedded font (sfnt) at offset 0x12DEF 10420 bytes

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