Malicious PDF — malware analysis report

Static analysis result for SHA-256 e88d3861d3f539b4…

MALICIOUS

PDF

36.4 KB Created: 2020-08-28 05:50:53 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 5930da62874a2008fa65fee76ec8755a SHA-1: 04790e501286b592696935fee024c91beaf5e745 SHA-256: e88d3861d3f539b4aad7e4609e40ffc56305546b0102d0b916675314b6b289af
120 Risk Score

Malware Insights

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

The PDF contains a heuristic firing for a malicious redirector link, pointing to 'https://ttraff.ru/pify?keyword=earth+wind+and+fire+midi'. This URL is embedded within the document body, suggesting a lure to trick users into visiting potentially harmful content. The PDF also exhibits characteristics of a link farm, with numerous external links, many hosted on Shopify. The document body itself is heavily obfuscated but contains the primary malicious URL and several benign-looking Shopify URLs.

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=earth+wind+and+fire+midi
    • http://files.magiqatlas.com/uploads/1/3/0/8/130814513/zivatemurijupizowigi.pdf
    • http://vavitu.yourchartersoffreedom.com/uploads/1/3/1/6/131636664/baneboja-kesaku-zevepuzijuj-timajumovasewop.pdf
    • http://files.freelandfairs.com/uploads/1/3/1/3/131382395/6110659.pdf
    • http://files.mossandivyhome.com/uploads/1/3/2/7/132712209/wepufixajikubo_wazixokogerop_fatirugu_pajopawawi.pdf
    • https://cdn.shopify.com/s/files/1/0438/0449/1936/files/website_als_speichern_chrome.pdf
    • https://cdn.shopify.com/s/files/1/0447/2792/6937/files/autism_spectrum_disorders_foundations_characteristics_and_effective_strategies.pdf
    • https://cdn.shopify.com/s/files/1/0428/5857/8086/files/modalobajisabaran.pdf
    • https://cdn.shopify.com/s/files/1/0429/9145/2314/files/87003879046.pdf
    • https://cdn.shopify.com/s/files/1/0437/9761/0657/files/20957755958.pdf
    • https://cdn.shopify.com/s/files/1/0435/8871/4653/files/abrg_des_marchs_financiers_2019.pdf
    • https://cdn.shopify.com/s/files/1/0431/1970/6269/files/93845437347.pdf
    • https://cdn.shopify.com/s/files/1/0432/0316/6372/files/vexufiwifoserinegusunosiw.pdf
    • https://cdn.shopify.com/s/files/1/0447/0036/9049/files/kirebode.pdf
    • https://cdn.shopify.com/s/files/1/0429/5013/1878/files/39368994459.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_off000051d2.bin
758bdde26013f59e66e123f21ec127965098ba7ddf070add5ecb7eb31360a811		 pdf-font-stream PDF embedded font (sfnt) at offset 0x51D2 4984 bytes
font_01_sfnt_off000062b2.bin
83d9d68ee41dc72ecd502fa60cbe27dec1ee825b8f9966705b17998edd765093		 pdf-font-stream PDF embedded font (sfnt) at offset 0x62B2 10224 bytes

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