Malicious PDF — malware analysis report

Static analysis result for SHA-256 2be2481d6a2ed30a…

MALICIOUS

PDF

39.6 KB Created: 2020-08-22 15:58:53 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: fa5dbff581515c079f3b58d167f37d65 SHA-1: 72b9583ff0f0bbf3dd8ff24ef658445b3798cdf0 SHA-256: 2be2481d6a2ed30afc0893952e2b013961313fbfb5385200f372ab15f3fe16b9
128 Risk Score

Malware Insights

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

The PDF file contains a significant number of embedded links, many of which point to a link farm hosted on cdn.shopify.com, a technique often used to obscure malicious destinations. One critical heuristic identified a link to a known malicious redirector at 'ttraff.ru'. The document body, though heavily obfuscated, contains the same redirector URL and a benign-looking PDF filename, suggesting a lure. The presence of a visual download button further supports the malicious intent of directing users to external, potentially harmful, content.

Heuristics 4

  • 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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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=chillara+gang+song++naa
    • http://bawotata.mychickenman.com/uploads/1/3/1/4/131408999/zerotetitifawe-roneruvebubiguv.pdf
    • https://cdn.shopify.com/s/files/1/0433/4927/8875/files/geographical_information_systems_and_science_3rd_edition.pdf
    • https://cdn.shopify.com/s/files/1/0432/7643/5612/files/baixar_creator_baixaki.pdf
    • https://cdn.shopify.com/s/files/1/0437/6195/9073/files/95308068710.pdf
    • https://cdn.shopify.com/s/files/1/0434/7078/2624/files/jedawutepusafidekune.pdf
    • https://cdn.shopify.com/s/files/1/0431/5152/4008/files/fivopilifedulex.pdf
    • https://cdn.shopify.com/s/files/1/0434/3191/9765/files/medepitezeluwulusebawuwo.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/49839171509.pdf
    • https://cdn.shopify.com/s/files/1/0440/6099/9830/files/ace_score_questionnaire.pdf
    • https://cdn.shopify.com/s/files/1/0444/2321/7318/files/ratifox.pdf
    • https://cdn.shopify.com/s/files/1/0436/8377/4614/files/9608045243.pdf
    • https://cdn.shopify.com/s/files/1/0432/7338/8190/files/32144026095.pdf
    • https://cdn.shopify.com/s/files/1/0436/1594/4867/files/76591075643.pdf
    • https://cdn.shopify.com/s/files/1/0436/2724/9826/files/xosodusitapofujo.pdf
    • https://cdn.shopify.com/s/files/1/0427/9821/9420/files/24683247532.pdf
    • https://cdn.shopify.com/s/files/1/0430/0016/8597/files/business_plan_sample_for_small_restaurant.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_off00005179.bin
bd96c7dc3082c8533070b242820efd807b5b3b707d43d2e9eef0ec1185f55a21		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5179 4560 bytes
font_01_sfnt_off000060d0.bin
8372f64b18f0d844ddd5f25446189a7102456cb431509a57f2bf02da9cc3d6d5		 pdf-font-stream PDF embedded font (sfnt) at offset 0x60D0 10404 bytes
font_02_sfnt_off0000838b.bin
9f355172d696dda274cac500966718f112ce76951f19577ac4888987ea6471b2		 pdf-font-stream PDF embedded font (sfnt) at offset 0x838B 4324 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.