Malicious PDF — malware analysis report

Static analysis result for SHA-256 bce76a59bbf7fd3e…

MALICIOUS

PDF

39.4 KB Created: 2020-08-01 15:22:59 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 45cc16a5e55218b907ee8d315919457a SHA-1: f7edeed4d8d4dfda4f334cd045c89845a1dd68f5 SHA-256: bce76a59bbf7fd3ec34b9cf0044900916bf66250343234c4a63b24572f444eea
120 Risk Score

Malware Insights

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

The PDF file contains a significant number of embedded links, with a critical heuristic firing indicating a link farm pointing to a redirector. The primary redirector URL is https://ttraff.cc/pify?keyword=ffmpeg+scrolling+text, which is likely used to obscure the final malicious destination. While no scripts were extracted, the structure and numerous links suggest a phishing or malicious redirection attempt.

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=ffmpeg+scrolling+text
    • http://files.vancareproject.ca/uploads/1/3/1/3/131384171/badavukijuvif_gapunebap_jezaxobakivoj.pdf
    • http://files.cinetikfit.com/uploads/1/3/1/3/131380058/5620685.pdf
    • http://files.mysonnyrae.com/uploads/1/3/1/4/131455621/kolukam_debovok_xunejukofujape_dumusuw.pdf
    • http://files.k9slovetosearch.com/uploads/1/3/2/7/132740309/10b7a2a.pdf
    • http://files.butsavageracing.com/uploads/1/3/0/7/130776175/wivawopuvil.pdf
    • https://cdn.shopify.com/s/files/1/0433/1841/1417/files/deguta.pdf
    • https://cdn.shopify.com/s/files/1/0427/3537/0407/files/3989613232.pdf
    • https://cdn.shopify.com/s/files/1/0437/1080/8216/files/97040577819.pdf
    • https://cdn.shopify.com/s/files/1/0436/3635/9326/files/riguzaranokikerodibu.pdf
    • https://cdn.shopify.com/s/files/1/0432/7279/8373/files/bitotiwavufifekisulip.pdf
    • https://cdn.shopify.com/s/files/1/0427/6004/4710/files/29634245182.pdf
    • https://cdn.shopify.com/s/files/1/0430/3156/0354/files/25403365471.pdf
    • https://cdn.shopify.com/s/files/1/0431/8769/9876/files/39562977234.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/16216600544.pdf
    • https://cdn.shopify.com/s/files/1/0437/6834/8830/files/15888289206.pdf
    • https://cdn.shopify.com/s/files/1/0431/7229/8918/files/wekelefowuxosufubabapu.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_off00005548.bin
13dd59fb476d61170c3169cbaab2bd83d5fae1df12d5f4524952ef622b8a01b9		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5548 5148 bytes
font_01_sfnt_off000066ce.bin
31db3d0243343b6824a9f0ddd18a4cdffbd3581497f5d5890f4acd4286eaf92d		 pdf-font-stream PDF embedded font (sfnt) at offset 0x66CE 13236 bytes

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