Malicious PDF — malware analysis report

Static analysis result for SHA-256 d1ed812d0de8d200…

MALICIOUS

PDF

35.6 KB Created: 2020-09-19 11:17:46 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 7dd1b469c272b9abc3cc0a9080273b34 SHA-1: e1d43e32abfc3e25e377d6353ee353f883da27e0 SHA-256: d1ed812d0de8d200ee040ef7b1c82275dbe95e0e2a3b4af7a0744a9195f613d2
120 Risk Score

Malware Insights

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

The PDF file contains a critical heuristic firing for a malicious redirector link, pointing to 'https://ttraff.club/wix?keyword=fnia+apk+para+android'. The document body also contains this URL and a related Shopify URL, suggesting a lure to download an Android application. The file is a PDF, and the presence of embedded links indicates a social engineering attempt to redirect the user 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.club/wix?keyword=fnia+apk+para+android
    • http://files.reiningbythebay.com/uploads/1/3/1/4/131407148/pijivujivuze.pdf
    • http://wefezesa.gainstrive.com/uploads/1/3/2/6/132695742/lutapego_pezijuxale.pdf
    • http://files.johnzwoodworking.com/uploads/1/3/0/9/130969686/nejetanavew.pdf
    • http://surugoga.geofftodd.com/uploads/1/3/1/4/131483152/1498a9dfec.pdf
    • http://jowamafa.leannedomash.com/uploads/1/3/1/3/131380550/8479191.pdf
    • https://cdn.shopify.com/s/files/1/0483/4613/6729/files/danabeviruzi.pdf
    • https://cdn.shopify.com/s/files/1/0463/4230/8001/files/java_jre_without_account.pdf
    • https://cdn.shopify.com/s/files/1/0435/5381/6728/files/5264519759.pdf
    • https://efc515e7-7847-4c97-a2e5-1ae43cbc94c7.filesusr.com/ugd/b81754_3a695539f9754851b16683d310cc21c2.pdf?index=true
    • https://cdn.shopify.com/s/files/1/0452/4562/8578/files/xazubitikolena.pdf
    • https://cdn.shopify.com/s/files/1/0437/9354/7426/files/13443909856.pdf
    • https://cdn.shopify.com/s/files/1/0429/3482/9222/files/26317383727.pdf
    • https://cdn.shopify.com/s/files/1/0435/0348/5092/files/fundamentals_of_applied_electromagnetics_ulaby.pdf
    • https://cdn.shopify.com/s/files/1/0438/2870/7485/files/tanaman_c3_c4_dan_cam.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_off00004ece.bin
c94a86adfec18a4f1e38f44de9cab1c48c1cfad1e6e34322e5e2a84dd2416748		 pdf-font-stream PDF embedded font (sfnt) at offset 0x4ECE 4760 bytes
font_01_sfnt_off00005f11.bin
6fcb0e6a2a99a649b60309d2069234f6d84c9363a84bdefb76bc746de2453877		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5F11 10260 bytes

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