Malicious PDF — malware analysis report

Static analysis result for SHA-256 ce06873035179fa8…

MALICIOUS

PDF

56.7 KB Created: 2020-07-25 23:55:15 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 0e4bc4a6abaf3bf0fb638f35a848863b SHA-1: f18e84b062e46918098ac8c0227c718bd5869e3b SHA-256: ce06873035179fa8438dfc7f6377ffbc444c9c38c7e27bb2310935d89ab5da94
248 Risk Score

Malware Insights

MITRE ATT&CK
T1204.002 Malicious File T1059.003 Windows Command Shell T1566.002 Spearphishing Attachment T1553.005 Security Software Installation

The PDF contains a lure for a 'free windows 7 activator.exe' and includes instructions to disable security software and use clipboard commands, indicating a social engineering attack. It also hosts a large number of external PDF links, many pointing to Shopify, with one redirecting through a known malicious domain. The primary malicious URL is ttraff.com, which is used as a redirector.

Heuristics 7

  • 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.
  • Clipboard command execution lure high SE_CLIPBOARD_COMMAND_LURE
    Document tells the user to copy or paste clipboard content into Run, PowerShell, cmd, or another shell-like execution context
  • Security software disable instruction high SE_SECURITY_BYPASS
    Document instructs the user to disable antivirus or security software — unusual for ordinary documents and high-risk in an unsolicited file
  • Password-protected archive handoff high SE_PASSWORD_ARCHIVE_LURE
    Document gives password instructions for an archive or attachment — often used to keep payloads encrypted until after gateway scanning
  • 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.com/pify?keyword=free++windows+7+activator.+exe
    • http://files.myarus.com/uploads/1/3/0/9/130969083/nowosasidipixug-kisovaw-pakakamoxejinib-zolifusebuki.pdf
    • http://files.volleyalliance.com/uploads/1/3/0/7/130738896/a465649743.pdf
    • http://files.eugenesufi.org/uploads/1/3/2/7/132740997/391153.pdf
    • https://cdn.shopify.com/s/files/1/0436/8970/5625/files/74639986180.pdf
    • https://cdn.shopify.com/s/files/1/0432/6057/5912/files/narutikedalotavuligudo.pdf
    • https://cdn.shopify.com/s/files/1/0431/7986/8309/files/meraforawofem.pdf
    • https://cdn.shopify.com/s/files/1/0428/8148/2919/files/34296165147.pdf
    • https://cdn.shopify.com/s/files/1/0428/2833/3219/files/jajoged.pdf
    • https://cdn.shopify.com/s/files/1/0434/0118/3384/files/wunosokoditakot.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/76588695657.pdf
    • https://cdn.shopify.com/s/files/1/0431/0827/0244/files/24488110865.pdf
    • https://cdn.shopify.com/s/files/1/0429/7526/4919/files/50460292872.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/74731072541.pdf
    • https://cdn.shopify.com/s/files/1/0432/5412/0606/files/fuxuz.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/23631451812.pdf
    • https://cdn.shopify.com/s/files/1/0428/5513/7447/files/99164282546.pdf
    • https://cdn.shopify.com/s/files/1/0430/3536/1442/files/pefovapifeninipifikot.pdf
    • https://cdn.shopify.com/s/files/1/0430/4669/9165/files/gawupogudajezowexigideb.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/
    • https://cdn.shopify.com/s/files/1/0428/8148/2919/files/3429616514

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00009a37.bin
a5dbaa223a1b974c8d98c98385a0d75615474e3e0161e05afd8283bc7658bee2		 pdf-font-stream PDF embedded font (sfnt) at offset 0x9A37 4976 bytes
font_01_sfnt_off0000ab53.bin
c9bfcac533e139d7b783adc740551b31e151e9359e4eff6101a3043b1b0547a8		 pdf-font-stream PDF embedded font (sfnt) at offset 0xAB53 15248 bytes

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