Malicious PDF — malware analysis report

Static analysis result for SHA-256 b6ad23d8ce953ad1…

MALICIOUS

PDF

42.4 KB Created: 2020-08-19 05:22:48 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 799240898a0d8394df967cb3e2001893 SHA-1: 0e1aca8244508dce51891c5fac3d2ba8489eb9f8 SHA-256: b6ad23d8ce953ad1be91e53b73f5d73e06f00a99f11306be99ae0b5f87af4e62
120 Risk Score

Malware Insights

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

The PDF document exhibits characteristics of a link farm, embedding numerous external links to other PDF files. One of these links, https://ttraff.cc/pify?keyword=verbal+ability+for+cat+pdf+free, is identified as a malicious redirector, indicating a potential phishing or malware distribution attempt. The document body itself is heavily obfuscated and contains embedded URLs, further supporting the malicious intent.

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=verbal+ability+for+cat+pdf+free
    • http://files.enfesnefes.com/uploads/1/3/1/3/131383533/gukexosu.pdf
    • http://files.relaxwellpod.net/uploads/1/3/0/7/130739616/desukonexex-tojajugajeludal-wapet-febuku.pdf
    • http://files.alswinners.com/uploads/1/3/1/3/131379085/zerasu_zesori_xuvozanov_gotazidoxe.pdf
    • http://soduzami.year8religionlynam.com/uploads/1/3/1/6/131606165/zodogopida.pdf
    • https://cdn.shopify.com/s/files/1/0431/8344/0030/files/4998603354.pdf
    • https://cdn.shopify.com/s/files/1/0428/6716/3302/files/wordly_wise_3000_book_8_lesson_10_answer_key.pdf
    • https://cdn.shopify.com/s/files/1/0435/7311/7096/files/loxirifanesez.pdf
    • https://cdn.shopify.com/s/files/1/0434/8359/4909/files/zezegawununemig.pdf
    • https://cdn.shopify.com/s/files/1/0429/8981/3909/files/milani.pdf
    • https://cdn.shopify.com/s/files/1/0433/7070/9150/files/64350237582.pdf
    • https://cdn.shopify.com/s/files/1/0439/2475/0491/files/vewenilefap.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/wixedazatujiguxup.pdf
    • https://cdn.shopify.com/s/files/1/0437/5448/7957/files/alphabet_phontique.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00005a43.bin
be62699c72e129ad9f87ed5d154198ba5a826d93ab56aca7f9191561c1c6523a		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5A43 4860 bytes
font_01_sfnt_off00006add.bin
7e7db734136887287f5e10834a4461b2f7c856d95bacec48d1fd16430bde340e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6ADD 10596 bytes
font_02_sfnt_off00008ed5.bin
0d0f64e27578eb124b8bc81c7eceacdd166e22eddd95c81328e9fbd7de2a6333		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8ED5 4324 bytes

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