Malicious PDF — malware analysis report

Static analysis result for SHA-256 54b059da2209c51f…

MALICIOUS

PDF

38.6 KB Created: 2020-08-11 06:08:58 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: fec21e834841491d10a62446c16ec76d SHA-1: 4904880503931e8f7e19e0c19c047e16ad465e27 SHA-256: 54b059da2209c51f8be5d17b158c86fa128180961ebe0707f15c4061d70fd2bb
120 Risk Score

Malware Insights

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

The PDF contains numerous embedded links, with a critical heuristic identifying a link to a known malicious redirector at 'https://ttraff.ru/pify?keyword=carry+on+my+wayward+son+sheet+music+pdf'. This suggests the document is designed to redirect users to malicious infrastructure. The document body, though heavily obfuscated, contains the same URL and appears to be a lure related to sheet music. No scripts were extracted from this sample.

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.ru/pify?keyword=carry+on+my+wayward+son+sheet+music+pdf
    • http://pebowugos.loukobin.com/uploads/1/3/0/7/130776485/wuxunefi_gudagewad_panujirawugif.pdf
    • http://files.kartzinellab.com/uploads/1/3/1/1/131163687/luvew.pdf
    • http://files.power101jamz.net/uploads/1/3/0/7/130775275/lobanox_bonuguw_dasutekogamo.pdf
    • https://cdn.shopify.com/s/files/1/0433/8896/0933/files/xunazawetozugitomul.pdf
    • https://cdn.shopify.com/s/files/1/0437/6693/9799/files/concepts_of_database_management_6th_edition.pdf
    • https://cdn.shopify.com/s/files/1/0428/3708/2271/files/free_english_worksheets_for_kindergarten.pdf
    • https://cdn.shopify.com/s/files/1/0435/1049/7434/files/gusipowemosekemolisomuno.pdf
    • https://cdn.shopify.com/s/files/1/0432/7273/2825/files/48805918068.pdf
    • https://cdn.shopify.com/s/files/1/0431/1475/8293/files/zojenekaxikabeforifiniguj.pdf
    • https://cdn.shopify.com/s/files/1/0433/8922/3066/files/bibopavababon.pdf
    • https://cdn.shopify.com/s/files/1/0439/4899/8811/files/level._29_candy_crush.pdf
    • https://cdn.shopify.com/s/files/1/0436/2004/0866/files/building_a_cash_register_1_7.pdf
    • https://cdn.shopify.com/s/files/1/0432/2210/6271/files/car_battery_size_chart.pdf
    • https://cdn.shopify.com/s/files/1/0433/0464/8859/files/siruzobot.pdf
    • https://cdn.shopify.com/s/files/1/0433/4164/3928/files/simple_algebraic_expressions_worksheet.pdf
    • https://cdn.shopify.com/s/files/1/0432/3170/7294/files/sejarah_batik_malaysia.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_off00004a5d.bin
7633c2d5ee6aec3deac8bfb35745c69377c1ffa74c97d4a9a5d30974f79f8e54
pdf-font-stream PDF embedded font (sfnt) at offset 0x4A5D 5464 bytes
font_01_sfnt_off00005ce0.bin
91bf5476f02f2bf42d8c073a5c9f82728011eb3b7daff537e45ed22afc03166e
pdf-font-stream PDF embedded font (sfnt) at offset 0x5CE0 9968 bytes
font_02_sfnt_off00007f19.bin
4fcfa7c68d76e23b667942a3ac892d2d5d88346478daafc61479ad4df4af3dd3
pdf-font-stream PDF embedded font (sfnt) at offset 0x7F19 4324 bytes