Malicious PDF — malware analysis report

Static analysis result for SHA-256 e3ef1f63ed7e2a3b…

MALICIOUS

PDF

86.9 KB Created: 2020-08-01 09:00:54 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 80816217c3fbfaa657f70e53d364a9bd SHA-1: cf0103d184e6758b65ab63747ad46ab2123bd304 SHA-256: e3ef1f63ed7e2a3b89bb0661546dcae6203684ee0fe8b4977779ea28349ebf25
120 Risk Score

Malware Insights

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

The PDF contains numerous links to external resources, with one critical heuristic identifying a link to a known malicious redirector. The document body, though heavily obfuscated, contains the string 'Pokemon gold cheats' and a URL that matches the redirector identified by the heuristic. This suggests the document is designed as a lure to redirect users to malicious infrastructure.

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=pokemon+gold+cheats
    • http://files.perlattorney.com/uploads/1/3/0/7/130776646/5225970e.pdf
    • http://files.the-songbirds.com/uploads/1/3/1/4/131438397/zidokovo.pdf
    • http://files.modernruthboutique.com/uploads/1/3/1/3/131384552/tevozafadibape-keviwukugifunup-zudewe-fogagobezikowob.pdf
    • https://cdn.shopify.com/s/files/1/0429/5249/1159/files/fapugakated.pdf
    • https://cdn.shopify.com/s/files/1/0432/3111/7467/files/dugufid.pdf
    • https://cdn.shopify.com/s/files/1/0434/6540/8662/files/39292140685.pdf
    • https://cdn.shopify.com/s/files/1/0438/9024/5787/files/suzokupa.pdf
    • https://cdn.shopify.com/s/files/1/0435/7118/3777/files/33580462534.pdf
    • https://cdn.shopify.com/s/files/1/0440/8826/2821/files/avery_8167_templates.pdf
    • https://cdn.shopify.com/s/files/1/0428/7427/3948/files/nokoteroluraxebenowu.pdf
    • https://cdn.shopify.com/s/files/1/0429/8434/1657/files/nafopur.pdf
    • https://cdn.shopify.com/s/files/1/0429/9161/6153/files/53694744179.pdf
    • https://cdn.shopify.com/s/files/1/0433/6504/0282/files/15748617972.pdf
    • https://cdn.shopify.com/s/files/1/0432/5759/4011/files/regepolisijezu.pdf
    • https://cdn.shopify.com/s/files/1/0433/7755/7660/files/64188355682.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_off00010dde.bin
73d46102444c7cdda3d8d0414eb3b32a25c7b6051d0c5da4fe3b5e15a63ebf43		 pdf-font-stream PDF embedded font (sfnt) at offset 0x10DDE 5320 bytes
font_01_sfnt_off00011fd8.bin
e00802e7f3ed9ce1f020c5038c632b9e908ca3dec3b51de97210a5844363610e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x11FD8 15152 bytes

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