Malicious PDF — malware analysis report

Static analysis result for SHA-256 49e66836a8d0457a…

MALICIOUS

PDF

35.5 KB Created: 2020-08-10 01:00:13 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 72439f0774953b35a999d8ae3af01172 SHA-1: e4f6de30e2d4a63c33f27f0782a18cc1f59de5cb SHA-256: 49e66836a8d0457a7154ca35f9fcba2634057a3e5f3a613d1eebabfcc45e5ac1
120 Risk Score

Malware Insights

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

The PDF contains numerous embedded links, with one specifically identified as a malicious redirector. The document body, though heavily obfuscated, contains the URL 'https://ttraff.cc/pify?keyword=rains+of+castamere+sheet+pdf', suggesting a lure to download further content. The presence of a link farm further supports the malicious intent of distributing links to potentially harmful content.

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=rains+of+castamere+sheet+pdf
    • http://files.krgriffiths.org/uploads/1/3/0/8/130874129/96dffd9.pdf
    • http://rubufaza.liveandletlive.co.nz/uploads/1/3/2/3/132303382/6064354.pdf
    • http://files.mittelmanassociatesarchitects.com/uploads/1/3/1/0/131070230/xamuwofisubozirenaja.pdf
    • http://files.hunterkallay.com/uploads/1/3/1/6/131606325/11dd725268150a7.pdf
    • https://cdn.shopify.com/s/files/1/0436/2895/3763/files/calendrier_2020_tunisie.pdf
    • https://cdn.shopify.com/s/files/1/0428/8351/4527/files/bojetivuvoxibewor.pdf
    • https://cdn.shopify.com/s/files/1/0433/7182/3262/files/62941785637.pdf
    • https://cdn.shopify.com/s/files/1/0432/7378/1408/files/kuvewasabobubez.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/vojinanekarab.pdf
    • https://cdn.shopify.com/s/files/1/0440/7181/3285/files/75107644101.pdf
    • https://cdn.shopify.com/s/files/1/0432/0781/9422/files/detukotunobilowidobutos.pdf
    • https://cdn.shopify.com/s/files/1/0434/6318/0438/files/at_last_i_see_the_light_sheet_music.pdf
    • https://cdn.shopify.com/s/files/1/0434/0826/1287/files/catechism_of_the_catholic_church_malayalam.pdf
    • https://cdn.shopify.com/s/files/1/0434/2287/5813/files/nemuxevoteloxesazakewevur.pdf
    • https://cdn.shopify.com/s/files/1/0427/6856/4380/files/kepeliforujafuxegexufef.pdf
    • https://cdn.shopify.com/s/files/1/0429/5573/5193/files/aiag_fmea_manual_free_download.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_off00004cc0.bin
7af08cb94a70ad40a9baa08a619d073c82e57ee517d2b302fbaf7fc8182da51b		 pdf-font-stream PDF embedded font (sfnt) at offset 0x4CC0 5368 bytes
font_01_sfnt_off00005edc.bin
81161b0f844ae2c5f0a69176eb84c7d974b5897bd0c00f5eff555b64886140c9		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5EDC 10120 bytes

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