Malicious PDF — malware analysis report

Static analysis result for SHA-256 46930da92adafc0b…

MALICIOUS

PDF

69.4 KB Created: 2020-08-19 01:27:51 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: ba9031cc3d12f76c02ec7946ea129348 SHA-1: 4517f5929107e7f346a54d53d153ff7480c15985 SHA-256: 46930da92adafc0b62343cac726b539e54c8ac6a5d6bb0fab35decc8b213812d
150 Risk Score

Malware Insights

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

The PDF contains a large number of embedded links, many of which point to a link farm hosted on cdn.shopify.com, and one critical link to a known malicious redirector at ttraff.cc. This indicates the document's primary purpose is to lure users to external, potentially malicious, websites. The ML classifier strongly supports the malicious nature of this PDF.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9999

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=d%2526+d+5e+warlock+guide+xanathar
    • http://files.dackor.com/uploads/1/3/1/4/131406527/sufofolovotev-zukupuz-tofifoba-wubemev.pdf
    • http://gasiguk.athensmediation.com/uploads/1/3/2/6/132681352/da5b3313a083.pdf
    • http://files.hamiltonspuremaple.com/uploads/1/3/0/7/130776791/1331029.pdf
    • http://toxifake.integrativetranslations.com/uploads/1/3/1/6/131637136/5bfb63.pdf
    • https://cdn.shopify.com/s/files/1/0434/7448/5401/files/deforestation_causes_and_effects_essay.pdf
    • https://cdn.shopify.com/s/files/1/0435/9746/3715/files/cancer_de_estomago_scielo.pdf
    • https://cdn.shopify.com/s/files/1/0434/6380/3040/files/42567782423.pdf
    • https://cdn.shopify.com/s/files/1/0435/3818/6394/files/virimiwezabome.pdf
    • https://cdn.shopify.com/s/files/1/0433/4367/5560/files/nizoguvevupezadu.pdf
    • https://cdn.shopify.com/s/files/1/0431/6043/6887/files/bexev.pdf
    • https://cdn.shopify.com/s/files/1/0431/7449/4369/files/viboperelomijanuwodegos.pdf
    • https://cdn.shopify.com/s/files/1/0433/5032/7451/files/nosefironotoganizawoxigud.pdf
    • https://cdn.shopify.com/s/files/1/0428/8777/4374/files/laporan_titrasi_kompleksometri.pdf
    • https://cdn.shopify.com/s/files/1/0432/8249/7701/files/country_code_254.pdf
    • https://cdn.shopify.com/s/files/1/0430/6993/1673/files/emblems_for_battlefield_4_com.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 7

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006dc8.bin
e6abf1d0be87221d9e23ce04abcf7d5f961ace7d5115dac3cf1941d76fb77900		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6DC8 6596 bytes
font_01_sfnt_off00007e0d.bin
a277baa0363301820e691350cb860598f83a55ab5f470b69e31f1ace31f899c5		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7E0D 3148 bytes
font_02_sfnt_off0000894c.bin
588f521cfd4f94b822f1b06fc45d750a2892d21422664c4a04289674f6411020		 pdf-font-stream PDF embedded font (sfnt) at offset 0x894C 4156 bytes
font_03_sfnt_off00009736.bin
99e96dfd4f426f2e2319c8b686b47fece99d42b469d88521b46398e21b120e03		 pdf-font-stream PDF embedded font (sfnt) at offset 0x9736 6224 bytes
font_04_sfnt_off0000a65a.bin
0068d2ea455b36154547594f4f56c244ca17dd7a0bbba3e59781ec7165135d98		 pdf-font-stream PDF embedded font (sfnt) at offset 0xA65A 20864 bytes
font_05_sfnt_off0000e29a.bin
afbe5d997063588bdc21b437113eebb47c318eadb87962914e7543b73c87c1d7		 pdf-font-stream PDF embedded font (sfnt) at offset 0xE29A 16304 bytes
font_06_sfnt_off0000f85b.bin
53f031e67e750b5ba5a8d4fedd1067d2eadd4f129e7e05f2c37c223027048ac2		 pdf-font-stream PDF embedded font (sfnt) at offset 0xF85B 6096 bytes

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