Malicious PDF — malware analysis report

Static analysis result for SHA-256 93cc3cbf415d7216…

MALICIOUS

PDF

40.6 KB Created: 2020-08-04 03:25:25 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 8e1551e1ae81662422e6dc0eece97171 SHA-1: b7e8bab082b9c335059ed76735feb7e1e9f14e4e SHA-256: 93cc3cbf415d7216fb4565e282d2139388e39ff99d5136df85f220946cb21bff
120 Risk Score

Malware Insights

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

The PDF contains a mass external link farm, with one link pointing to a known malicious redirector. The document body text, though partially corrupted, suggests a lure related to a "Ca dmv release of liability pdf". The primary malicious IOC is the redirector URL, which likely leads to further malicious content or phishing pages.

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=ca+dmv+release+of+liability+pdf
    • http://files.johnsoncitytexas.info/uploads/1/3/0/9/130969403/bunesik-zakevupapabeb-jegiwitiwanitoz-kupemelugabupuw.pdf
    • http://jilug.simonesportraiture.com/uploads/1/3/0/7/130775432/aebd8.pdf
    • http://files.offbeatapothecary.com/uploads/1/3/2/6/132682327/nolab.pdf
    • http://files.stayathomerustics.com/uploads/1/3/1/3/131398333/senipukexela.pdf
    • http://files.houzestudent.com/uploads/1/3/0/8/130813796/kekejolev-busosaxuruj-minanojipelin.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/fokadexowigexavutezirero.pdf
    • https://cdn.shopify.com/s/files/1/0432/8259/6004/files/71039570618.pdf
    • https://cdn.shopify.com/s/files/1/0436/8377/4614/files/30246111905.pdf
    • https://cdn.shopify.com/s/files/1/0430/4430/7098/files/53118208401.pdf
    • https://cdn.shopify.com/s/files/1/0431/5486/6333/files/15935630044.pdf
    • https://cdn.shopify.com/s/files/1/0437/6618/6135/files/57704423453.pdf
    • https://cdn.shopify.com/s/files/1/0429/2214/8003/files/aac_to_mp3_converters.pdf
    • https://cdn.shopify.com/s/files/1/0435/5496/3617/files/6801892092.pdf
    • https://cdn.shopify.com/s/files/1/0433/6022/3382/files/fiwimiposabi.pdf
    • https://cdn.shopify.com/s/files/1/0433/7251/1386/files/kisagomelisebalofuzov.pdf
    • https://cdn.shopify.com/s/files/1/0432/3049/4882/files/91568035789.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_off000060f8.bin
12d58bcc7166a190127ceb788b9ea0a79c82ede8111bc8de94dc20cc2138c09b		 pdf-font-stream PDF embedded font (sfnt) at offset 0x60F8 5396 bytes
font_01_sfnt_off0000733d.bin
be4cf2d2813654b06522c60495ab479df5f26b2c8dcae79eaf265eefea5e49de		 pdf-font-stream PDF embedded font (sfnt) at offset 0x733D 9964 bytes

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