Malicious PDF — malware analysis report

Static analysis result for SHA-256 2da0c0f99a19cc37…

MALICIOUS

PDF

38.2 KB Created: 2020-08-21 09:06:57 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 96185f7cc61ed8e9896d5830d4025dc8 SHA-1: 4cb8ca481a603206642c99f39c79d9f2712ffbaf SHA-256: 2da0c0f99a19cc3765a07d08187312912a0a0f5c64876779cf9bb3705b5a7b83
120 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link pointing to 'https://ttraff.com/pify?keyword=dead+cells+hack+apk'. This URL is presented within the document body, suggesting a social engineering lure to trick the user into clicking. The document also contains a PDF link farm heuristic, indicating a large number of outbound links, with the primary one leading to a Shopify domain. The overall purpose appears to be directing users to malicious content via a deceptive link.

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=dead+cells+hack+apk
    • http://files.katrinaleelifecoaching.com/uploads/1/3/0/7/130776388/rupujulorevupetu.pdf
    • https://cdn.shopify.com/s/files/1/0437/0615/5173/files/35823843610.pdf
    • https://cdn.shopify.com/s/files/1/0431/5165/5076/files/convert_kindle_file_to_mac.pdf
    • https://cdn.shopify.com/s/files/1/0434/7333/8533/files/sunigafazugunedok.pdf
    • https://cdn.shopify.com/s/files/1/0434/4915/5740/files/adding_fractions_worksheet_with_answers.pdf
    • https://cdn.shopify.com/s/files/1/0432/6971/8182/files/worupetofesaw.pdf
    • https://cdn.shopify.com/s/files/1/0435/9172/9309/files/jigimapoximunibavu.pdf
    • https://cdn.shopify.com/s/files/1/0433/9240/1573/files/egyptian_cotton_sheets_high_quality.pdf
    • https://cdn.shopify.com/s/files/1/0431/4939/4071/files/mupazusikuxifum.pdf
    • https://cdn.shopify.com/s/files/1/0429/5540/7511/files/epileptiforme_o_que.pdf
    • https://cdn.shopify.com/s/files/1/0432/0896/6307/files/25517185680.pdf
    • https://cdn.shopify.com/s/files/1/0436/1289/7437/files/povabomejazevar.pdf
    • https://cdn.shopify.com/s/files/1/0452/3737/1040/files/21942239992.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_off000057f0.bin
932317e0c380c2804d4c252b8f6efcaa80c34a527d9db3c854763692603564fc		 pdf-font-stream PDF embedded font (sfnt) at offset 0x57F0 5128 bytes
font_01_sfnt_off00006960.bin
231a90947e69c2466fd26dbb895243c3c7cb8b7db57d020abed836b9002bbea0		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6960 10500 bytes

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