Malicious PDF — malware analysis report

Static analysis result for SHA-256 30e185a71fb6aba3…

MALICIOUS

PDF

59.7 KB Created: 2020-08-19 18:27:26 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 2d9a9862f544f45678c0338b90e320d1 SHA-1: 1a42a5060aea9613c1f7d5f73aea31e3d334d373 SHA-256: 30e185a71fb6aba396dc8a74aaf4317fbbf9f8d8ab2a31bd8e8fde2f4064feea
152 Risk Score

Malware Insights

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

The PDF contains a significant number of embedded links, many of which point to a link farm hosted on cdn.shopify.com. One of these links, https://ttraff.com/pify?keyword=chori+chori+chupke+krrish+song, is identified as a malicious redirector. This suggests the document is designed to lead users to malicious infrastructure, likely for further exploitation or credential harvesting.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

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.
  • Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL
    The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
  • 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=chori+chori+chupke+krrish+song
    • http://rigetol.jreschkeart.com/uploads/1/3/0/9/130969426/rewamigutukova_linufuvoja_surujezi.pdf
    • http://files.westerncanineacademy.ca/uploads/1/3/1/3/131383664/lobop.pdf
    • http://files.wildgingerdaycare.com/uploads/1/3/0/7/130739201/421fc3f3e8fe.pdf
    • https://cdn.shopify.com/s/files/1/0437/0874/3834/files/design_of_machinery_5th_edition_download.pdf
    • https://cdn.shopify.com/s/files/1/0429/2925/8649/files/padulimobopodugedes.pdf
    • https://cdn.shopify.com/s/files/1/0437/8384/8093/files/ardex_p51_primer.pdf
    • https://cdn.shopify.com/s/files/1/0448/1817/0018/files/13837856395.pdf
    • https://cdn.shopify.com/s/files/1/0438/2811/7661/files/bifeda.pdf
    • https://cdn.shopify.com/s/files/1/0434/9739/0244/files/30908570539.pdf
    • https://cdn.shopify.com/s/files/1/0432/2980/6759/files/sebavafugaz.pdf
    • https://cdn.shopify.com/s/files/1/0428/7250/4483/files/2970476645.pdf
    • https://cdn.shopify.com/s/files/1/0434/4024/2840/files/7424478822.pdf
    • https://cdn.shopify.com/s/files/1/0431/5214/6586/files/bosinezedokedifavixanijoj.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 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006fe3.bin
3dae398a02de76ef287636f38cc4e985216ed8d8c336e355a51f0b8eefe86dba		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6FE3 4840 bytes
font_01_sfnt_off0000804f.bin
5a4b083407683b58a258c5c9289fc711d6e25c57a5d9b1f86fcded1d17f7cff8		 pdf-font-stream PDF embedded font (sfnt) at offset 0x804F 15960 bytes
font_02_sfnt_off0000b1ec.bin
9f355172d696dda274cac500966718f112ce76951f19577ac4888987ea6471b2		 pdf-font-stream PDF embedded font (sfnt) at offset 0xB1EC 4324 bytes
font_03_sfnt_off0000bfee.bin
7abfa03acadebbec94234afe1c2f9efefe7259944759bfae38082a69f36d8ac2		 pdf-font-stream PDF embedded font (sfnt) at offset 0xBFEE 10188 bytes

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