Malicious PDF — malware analysis report

Static analysis result for SHA-256 a1cfd53fe0ae8630…

MALICIOUS

PDF

45.1 KB Created: 2020-08-28 02:24:16 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 374211982c52bb7e0205505825affd10 SHA-1: 12535072ef957ee036a6ed35d6018505ff026a6a SHA-256: a1cfd53fe0ae8630ff9ae334d702017701641e30deb81e53b7fcd163220b87b1
168 Risk Score

Malware Insights

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

The PDF contains multiple embedded links, including one that redirects to known malicious infrastructure ('https://ttraff.cc/pify?keyword=activador+windows+7+2017'). The document body also contains text and a link that suggests a lure for downloading software, potentially a remote support tool, which is a high-risk indicator. The presence of a download button lure further supports the malicious intent of directing users to external, potentially harmful, resources.

Heuristics 5

  • 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.
  • Remote-support tool lure high SE_REMOTE_SUPPORT_LURE
    Document instructs the user to install, open, or connect with a remote-support tool such as AnyDesk, TeamViewer, Quick Assist, or ScreenConnect — high-risk in an unsolicited document
  • 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.cc/pify?keyword=activador+windows+7+2017
    • http://files.anseasternwashington.org/uploads/1/3/1/4/131453249/vezag-sarabojid-tufudedafikum-xenipelamu.pdf
    • http://files.loriellaschukrmt.com/uploads/1/3/0/8/130813514/dozabufa.pdf
    • http://files.mhktesoro.com/uploads/1/3/0/8/130873794/9566537.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/nexunalazuzifoginiwaboliz.pdf
    • https://cdn.shopify.com/s/files/1/0437/3574/4673/files/23601325308.pdf
    • https://cdn.shopify.com/s/files/1/0433/6844/8152/files/break_even_point_questions.pdf
    • https://cdn.shopify.com/s/files/1/0437/5930/4865/files/percentage_aptitude_questions_with_answers.pdf
    • https://cdn.shopify.com/s/files/1/0431/4277/4938/files/lofegopunewezomoxekito.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/77363931764.pdf
    • https://cdn.shopify.com/s/files/1/0433/6710/4664/files/67696149371.pdf
    • https://cdn.shopify.com/s/files/1/0430/7258/5888/files/forscan_sync_3_spreadsheet.pdf
    • https://cdn.shopify.com/s/files/1/0432/1083/4077/files/windows_10_caps_lock_control.pdf
    • https://cdn.shopify.com/s/files/1/0434/8051/4726/files/zujedaror.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/54686169254.pdf
    • https://cdn.shopify.com/s/files/1/0429/4197/2646/files/9539072436.pdf
    • https://cdn.shopify.com/s/files/1/0433/4957/3784/files/tumugeku.pdf
    • https://cdn.shopify.com/s/files/1/0428/4389/8019/files/34344031617.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_off00006fb1.bin
868ffcc170c6f607b70a0fc89408c800cc09774486394d8884f6021886768665		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6FB1 5448 bytes
font_01_sfnt_off0000825f.bin
2144ec451d1690bf9f457863481061fbf63598eba7933bfab4951b6afcc5c23a		 pdf-font-stream PDF embedded font (sfnt) at offset 0x825F 10548 bytes

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