Malicious PDF — malware analysis report

Static analysis result for SHA-256 7d22ba5a4e283d38…

MALICIOUS

PDF

34.6 KB Created: 2021-06-17 22:13:00 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-27
MD5: 9d0efac0e637dec3939de475b29d6402 SHA-1: 832d3aa760def2d51250581fcbcd0153bb72ce67 SHA-256: 7d22ba5a4e283d3848ede24ad26d50682392bec9623e6e1325a85fb74414083a
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document contains multiple links that redirect to a malicious site, masquerading as a game hack generator. The primary lure is 'Como Descargar Hacks Para Roblox Counter Blox', directing users to a known malicious redirector. The document's structure and embedded links strongly suggest a phishing or scam attempt to drive traffic to potentially harmful content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

Heuristics 4

  • PDF links to a 'free generator / game hack' redirector critical PDF_GAME_HACK_REDIRECT_LURE
    PDF's clickable action targets a redirector of the form /app/<id>/<slug>-game-hack — the landing-page shape of a large SEO 'free spins / generator / game hack' lure family that funnels victims through rotating disposable hosts to a malware/scam payload. The multi-link variants also trip ML/link-farm rules; this catches the single-link variants that otherwise score clean. CRITICAL on its own: the /app/<id>/<slug>-game-hack path shape is unambiguous scam infra, and the host rotates so a host-list match can't be relied on.
  • 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.
  • 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 http://netcdn.co/app/431946152/como-descargar-hacks-para-roblox-counter-blox-game-hack In PDF document text
    • https://library.stikeswnpalu.ac.id/repository/coin-master-mod-version-free-download-v344_GM406889139.pdfIn PDF document text
    • https://library.stikeswnpalu.ac.id/repository/robux-hack-inspeccionar_GM431946152.pdfIn PDF document text
    • https://library.stikeswnpalu.ac.id/repository/hacks-for-minecraft-windows-10_GM479516143.pdfIn PDF document text
    • https://library.stikeswnpalu.ac.id/repository/coin-master-free-spins-2021_GM406889139.pdfIn PDF document text
    • https://library.stikeswnpalu.ac.id/repository/2021-coin-master-hack_GM406889139.pdfIn PDF document text
    • https://library.stikeswnpalu.ac.id/repository/minecraft-hacked-client-bedrock_GM479516143.pdfIn PDF document text
    • https://library.stikeswnpalu.ac.id/repository/free-robux-accounts_GM431946152.pdfIn PDF document text
    • https://library.stikeswnpalu.ac.id/repository/best-roblox-games-to-hack-on_GM431946152.pdfIn PDF document text
    • https://library.stikeswnpalu.ac.id/repository/coin-master-hacks-for-android_GM406889139.pdfIn PDF document text
    • https://library.stikeswnpalu.ac.id/repository/minecraft-free-download-ios_GM479516143.pdfIn PDF document text
    • https://library.stikeswnpalu.ac.id/repository/coin-master-free-link-today_GM406889139.pdfIn PDF document text
    • https://library.stikeswnpalu.ac.id/repository/roblox-saber-simulator-hack-client_GM431946152.pdfIn PDF document text
    • https://library.stikeswnpalu.ac.id/repository/wurst-18-9_GM479516143.pdfIn PDF document text
    • https://library.stikeswnpalu.ac.id/repository/coin-master-hack-tool-no-survey_GM406889139.pdfIn PDF document text
    • https://library.stikeswnpalu.ac.id/repository/coin-master-free-spins-link-2021-ios_GM406889139.pdfIn PDF document text
    • https://library.stikeswnpalu.ac.id/repository/wall-hack-roblox-cbro_GM431946152.pdfIn PDF document text
    • https://library.stikeswnpalu.ac.id/repository/coin-master-hack-tool-2021_GM406889139.pdfIn PDF document text
    • https://library.stikeswnpalu.ac.id/repository/free-group-roblox_GM431946152.pdfIn PDF document text
    • https://library.stikeswnpalu.ac.id/repository/oprewards-free-robux_GM431946152.pdfIn PDF document text
    • https://library.stikeswnpalu.ac.id/repository/hack-roblox-exploit-omgexploit_GM431946152.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00002fb1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2FB1 22428 bytes
SHA-256: 0a7adf2884ac21fd71d6071d5f822ea95b93e3c8e4164d777af454d35f5ae867
font_01_sfnt_off0000619d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x619D 19296 bytes
SHA-256: 8ec3012c74a40cbdcc97dcdb48da041d8ab4eac190e468050e4c6d303b51eb60

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