Malicious PDF — malware analysis report

Static analysis result for SHA-256 5914f28379a34978…

MALICIOUS

PDF

32.6 KB Created: 2020-08-08 18:04:04 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 5ea9b58ee3f3b32e974e6b41145f35f2 SHA-1: 07f05dc3dfb8922489316ae2dd41c2985c943bfb SHA-256: 5914f28379a349781154cd8cdf86c8653201fa60cb3609b04b1e7a228e2f6aac
120 Risk Score

Malware Insights

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

The PDF contains a mass external link farm, with one critical link pointing to a known malicious redirector. The document body, though heavily obfuscated, contains the URL that triggers the malicious redirector. This suggests the document is designed to lead the user to malicious content, likely for phishing or malware distribution.

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/wb?keyword=libardo%20rodriguez%20derecho%20administrativo%20general%20y%20colombiano%20pdf
    • http://files.millerpet.com/uploads/1/3/2/8/132814989/teruzotelowe_jilalu_molabibepew.pdf
    • http://lamon.gnv-daerligen.ch/uploads/1/3/1/4/131408899/4133947.pdf
    • http://files.rachellepaintings.com/uploads/1/3/1/3/131383581/76049ebb.pdf
    • http://wilubud.meatslut.com/uploads/1/3/1/4/131483200/37a3098ea78.pdf
    • http://files.alexismahdavi.com/uploads/1/3/1/6/131636612/df0ceafd6.pdf
    • https://cdn.shopify.com/s/files/1/0429/6084/7004/files/xoxezosevesowop.pdf
    • https://cdn.shopify.com/s/files/1/0433/6926/7354/files/zizimolal.pdf
    • https://cdn.shopify.com/s/files/1/0437/5815/7982/files/84946539994.pdf
    • https://cdn.shopify.com/s/files/1/0431/4162/8072/files/41036130538.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/lorabo.pdf
    • https://cdn.shopify.com/s/files/1/0430/0098/7811/files/trends_in_biosystematics.pdf
    • https://cdn.shopify.com/s/files/1/0436/7928/5401/files/murarokob.pdf
    • https://cdn.shopify.com/s/files/1/0435/3638/4149/files/xevotiwatavixosok.pdf
    • https://cdn.shopify.com/s/files/1/0430/4322/5751/files/gaviruveruzupaduge.pdf
    • https://cdn.shopify.com/s/files/1/0430/0577/1939/files/95589203230.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/pafinekumukomotutawewokab.pdf
    • https://cdn.shopify.com/s/files/1/0438/6629/2389/files/digukasimoxajazejav.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_off000044a9.bin
7faa0192b361703945b465941506f263b9dbb86519c33d7e170704d0c7e40119		 pdf-font-stream PDF embedded font (sfnt) at offset 0x44A9 5860 bytes
font_01_sfnt_off00005889.bin
2623c1018507f8d99f84bd2d8c810b748eeb9573f2ac566cb92e2ec9378c8279		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5889 8368 bytes

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