Malicious PDF — malware analysis report

Static analysis result for SHA-256 0904b4140dc6588e…

MALICIOUS

PDF

46.6 KB Created: 2021-05-14 17:32:50 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-18
MD5: bbe9895a7fcbea1e2e461000d10f7848 SHA-1: ab96a209fe4cfa1e852e12a1793e61572915e155 SHA-256: 0904b4140dc6588ec7a920091ac51f2a5c06e5f36952d8212d06c3ce738b68b8
100 Risk Score

Malware Insights

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

The PDF contains embedded links that point to known malicious redirector infrastructure, specifically targeting a download for a "hack-coin-master-apk". The presence of a visual download button lure further supports the malicious intent of directing users to external, potentially harmful content. No scripts were extracted from this sample.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8948

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.
  • 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://netcdn.xyz/app/406889139/hack-coin-master-apk-3.2-download-game-hack In PDF document text
    • https://emindonesia.com/assets/CKImages/files/roblox-script-hack_GM431946152.pdfIn PDF document text
    • https://emindonesia.com/assets/CKImages/files/roblox-hack-codes_GM431946152.pdfIn PDF document text
    • https://emindonesia.com/assets/CKImages/files/how-to-hack-peoples-roblox-accounts_GM431946152.pdfIn PDF document text
    • https://emindonesia.com/assets/CKImages/files/codes-how-to-get-free-robux_GM431946152.pdfIn PDF document text
    • https://emindonesia.com/assets/CKImages/files/how-to-hack-coin-master-computer_GM406889139.pdfIn PDF document text
    • https://emindonesia.com/assets/CKImages/files/orewards-com-free-robux_GM431946152.pdfIn PDF document text
    • https://emindonesia.com/assets/CKImages/files/free-minecraft-skins-girl_GM479516143.pdfIn PDF document text
    • https://emindonesia.com/assets/CKImages/files/rbxoffer-com-free-robux_GM431946152.pdfIn PDF document text
    • https://emindonesia.com/assets/CKImages/files/coin-master-hack-xyz-apk-download_GM406889139.pdfIn PDF document text
    • https://emindonesia.com/assets/CKImages/files/coin-master-daily-spin-free_GM406889139.pdfIn PDF document text
    • https://emindonesia.com/assets/CKImages/files/master-coin-hack_GM406889139.pdfIn PDF document text
    • https://emindonesia.com/assets/CKImages/files/archery-master-3d-apk-and-mod-free-download-unlimited-coins_GM406889139.pdfIn PDF document text
    • https://emindonesia.com/assets/CKImages/files/free-coin-and-spin-in-coin-master_GM406889139.pdfIn PDF document text
    • https://emindonesia.com/assets/CKImages/files/coin-master-hack-cydia_GM406889139.pdfIn PDF document text
    • https://emindonesia.com/assets/CKImages/files/minecraft-kill-aura_GM479516143.pdfIn PDF document text
    • https://emindonesia.com/assets/CKImages/files/free-robux-hack_GM431946152.pdfIn PDF document text
    • https://emindonesia.com/assets/CKImages/files/blogspot-coin-master-free-spins_GM406889139.pdfIn PDF document text
    • https://emindonesia.com/assets/CKImages/files/cute-free-stuff-on-roblox_GM431946152.pdfIn PDF document text
    • https://emindonesia.com/assets/CKImages/files/master-coin-free-spin-daily_GM406889139.pdfIn PDF document text
    • https://emindonesia.com/assets/CKImages/files/how-to-get-free-roblox_GM431946152.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn extracted file (stream_003_off00004a44.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off00004a44.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4A44 26800 bytes
SHA-256: eb4ef0c0135a948342457ef351ff3abf2bcaf066480037b9f65fa477ae88ea6b
font_01_sfnt_off0000882a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x882A 2840 bytes
SHA-256: 3fb127b764b9d10f5525bc4de5ec8316de704409ccb0cf21cff3ad8a30d11676
font_02_sfnt_off000091dc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x91DC 18836 bytes
SHA-256: d746a7c1c5cf5be311eddf8676cfb9402845d24e0d8fc8e00b27a1d9de62f851