Malicious PDF — malware analysis report

Static analysis result for SHA-256 c9c93562bc4394b5…

MALICIOUS

PDF

43.8 KB Created: 2020-07-25 13:48:24 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 7a0331542e03a236d7f0161dae86487b SHA-1: 6cc11c83bed66e5e5ac95b5a5afb62722a61ab08 SHA-256: c9c93562bc4394b5e32c1f0026a1838c528d594b076287ed8bca08b072be68d1
120 Risk Score

Malware Insights

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

The PDF file contains a significant number of embedded links, identified as a PDF link farm. One of the primary links, 'https://ttraff.ru/pify?keyword=dls+19+hack+android+1', is flagged as malicious, suggesting a phishing or malware distribution attempt. The document body, though heavily obfuscated, contains metadata related to 'wkhtmltopdf' and a date, but the primary malicious activity is driven by the embedded URLs.

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=dls+19+hack+android+1
    • http://files.bonafidefiction.com/uploads/1/3/2/6/132682899/wopupamigusegu.pdf
    • http://files.1drop2creativeart.com/uploads/1/3/1/8/131856331/newiwifileriv-pamuderavobamur.pdf
    • http://files.ssipdx.org/uploads/1/3/1/3/131383486/95297b174d95.pdf
    • https://cdn.shopify.com/s/files/1/0434/4525/6344/files/60839915151.pdf
    • https://cdn.shopify.com/s/files/1/0429/7100/5082/files/18241311399.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/48466687054.pdf
    • https://cdn.shopify.com/s/files/1/0439/1036/5339/files/90776133729.pdf
    • https://cdn.shopify.com/s/files/1/0431/5699/6247/files/10056986340.pdf
    • https://cdn.shopify.com/s/files/1/0435/8956/6623/files/28085917191.pdf
    • https://cdn.shopify.com/s/files/1/0430/1901/0201/files/zoxulafudotanofadubu.pdf
    • https://cdn.shopify.com/s/files/1/0438/1822/1730/files/lapodasaga.pdf
    • https://cdn.shopify.com/s/files/1/0432/1725/6603/files/dabep.pdf
    • https://cdn.shopify.com/s/files/1/0433/4728/0026/files/63318730106.pdf
    • https://cdn.shopify.com/s/files/1/0434/4273/3221/files/91777648393.pdf
    • https://cdn.shopify.com/s/files/1/0428/9868/6111/files/89043073736.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_off00006e3d.bin
9ce54b01fe56275b2c6de8e818558e9407df2f7c5c1dbe0f698d6bc96ce14f9a		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6E3D 4888 bytes
font_01_sfnt_off00007eaf.bin
0095ff6a7ec76f4847efa07af3b55514cd828f1ace37109d025c74571da4287f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7EAF 10448 bytes

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