Malicious PDF — malware analysis report

Static analysis result for SHA-256 3326e6eb41919038…

MALICIOUS

PDF

41.8 KB Created: 2020-08-19 13:40:42 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 65af586fb594d8213228cdf4431a6868 SHA-1: 2e154074f97aca3393dc13ed800a10c8f0a3e44b SHA-256: 3326e6eb41919038118451f4e730ac13d8a230989bed6dba79c43d3a6d9298fb
120 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell T1204.002 Malicious Link

The PDF contains a critical heuristic firing for a malicious redirector link pointing to 'https://ttraff.com/pify?keyword=video+maker+android+app'. It also exhibits characteristics of a PDF link farm, with numerous embedded URLs, many hosted on shopify.com, but the primary redirector is the most concerning. The document body, though heavily obfuscated, contains the same malicious URL, reinforcing the lure. No scripts were extracted, but the primary attack vector is the malicious link designed to redirect users 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.com/pify?keyword=video+maker+android+app
    • http://files.theokcedge.com/uploads/1/3/1/3/131398091/gufukol_xazija.pdf
    • http://fesuwuw.argonautcoffeeleavenworth.com/uploads/1/3/0/7/130738902/zezakeka_fasobiral.pdf
    • https://cdn.shopify.com/s/files/1/0434/3064/1829/files/22577197536.pdf
    • https://cdn.shopify.com/s/files/1/0438/9378/4728/files/73208595519.pdf
    • https://cdn.shopify.com/s/files/1/0432/8862/5302/files/dewelebigonoka.pdf
    • https://cdn.shopify.com/s/files/1/0435/2658/6519/files/rizuzonepezegi.pdf
    • https://cdn.shopify.com/s/files/1/0431/4506/8699/files/ruradegefi.pdf
    • https://cdn.shopify.com/s/files/1/0432/7673/0533/files/wezawokiwe.pdf
    • https://cdn.shopify.com/s/files/1/0428/5802/1027/files/movazidulijor.pdf
    • https://cdn.shopify.com/s/files/1/0432/5864/2595/files/79456761020.pdf
    • https://cdn.shopify.com/s/files/1/0433/2791/4152/files/59573312686.pdf
    • https://cdn.shopify.com/s/files/1/0433/1870/6341/files/tirare.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_off00005bc6.bin
ff589e525a177a0dda13313f3c9038bf085bf3677aa63379742f8c30a6046d35		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5BC6 4632 bytes
font_01_sfnt_off00006b57.bin
3e55175688e42256cc3f424b9eb5bd671289c06de84df1f2d744b296c52202fd		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6B57 9876 bytes
font_02_sfnt_off00008cfa.bin
9f355172d696dda274cac500966718f112ce76951f19577ac4888987ea6471b2		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8CFA 4324 bytes

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