Malicious PDF — malware analysis report

Static analysis result for SHA-256 e6b6c960af3ef31b…

MALICIOUS

PDF

32.4 KB Created: 2020-09-17 02:45:04 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 75b5f5b0544e46ca3b08c41db5ac5a1d SHA-1: 6f00e2edcf292ad835105609e2bc20a4b349079e SHA-256: e6b6c960af3ef31b4097c1c150fa0d3656d178b137e5cfe96d37e0775b798125
120 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for PDF_MALICIOUS_REDIRECTOR_LINK, indicating it directs users to malicious infrastructure. Additionally, the PDF_SEO_LINK_FARM heuristic indicates a mass of external links, with the primary one being a redirector. The document body, though heavily corrupted, contains the malicious URL and other benign-looking URLs, suggesting a lure to a malicious site.

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.club/wix?keyword=camille+guide+reddit
    • http://files.sunsethouseandgardens.com/uploads/1/3/0/7/130740589/386983d5aed.pdf
    • https://4fbe9b4a-6f97-43b0-9918-76403716ba1c.filesusr.com/ugd/163759_e604fee6590a4d1ca302d6fbbaa2a98b.pdf?index=true
    • https://16df0ecd-f819-4c6d-90cf-99763132b8c0.filesusr.com/ugd/dcf9ad_244fdff99d764ec7906aee633ff22f47.pdf?index=true
    • https://e87c28a7-63b3-4c21-9ee6-1a39af05fd0e.filesusr.com/ugd/54fa57_b7157c9cd0f64c4d8093c36cab781e30.pdf?index=true
    • https://f04371b4-2768-4488-9e7d-38bf22e502d9.filesusr.com/ugd/3d0627_2253d807405a443ebbc198783ec36844.pdf?index=true
    • https://cdn.shopify.com/s/files/1/0430/6750/6837/files/avadhuta_gita_sanskrit.pdf
    • https://cdn.shopify.com/s/files/1/0430/8808/5145/files/cool_words_with_s_in_it.pdf
    • https://cdn.shopify.com/s/files/1/0433/2149/1621/files/22758818.pdf
    • https://cdn.shopify.com/s/files/1/0469/4537/0273/files/zezakekavo.pdf
    • https://cdn.shopify.com/s/files/1/0430/0183/9775/files/zogudanewadinugol.pdf
    • https://eb725abb-63a4-49eb-9133-06a5c1dc35fb.filesusr.com/ugd/10a4aa_6cbe00f2501d4b9b86bd2da569413b9e.pdf?index=true
    • https://e99e3112-3bf5-4020-b5a9-f2089b77c7b0.filesusr.com/ugd/24deb6_4994e95e56504e868064c4ef6c13e2c8.pdf?index=true
    • https://fd0ef4cb-a553-46c5-a150-c6cfa6747ddc.filesusr.com/ugd/ff68bb_ee832a8562564cf08c6306b7fc521de6.pdf?index=true
    • 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_off0000455a.bin
def702d398950c0ed48cdab786735ff152929e30e58d030c300b927d82f1f9c9		 pdf-font-stream PDF embedded font (sfnt) at offset 0x455A 4872 bytes
font_01_sfnt_off000055cc.bin
763ad3ff4e2e0c5192a576e9768cd8d73d4196b4e85bdb4c701a80d7dbb1191a		 pdf-font-stream PDF embedded font (sfnt) at offset 0x55CC 9224 bytes

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