Malicious PDF — malware analysis report

Static analysis result for SHA-256 764101602de52479…

MALICIOUS

PDF

43.6 KB Created: 2021-05-13 01:06:31 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)
MD5: 4cec72037e138ea4931745cf08bd9099 SHA-1: 7ebb5a4e678d94ab60f1ca0e1f3709a284d1594c SHA-256: 764101602de52479c422dd3bfa381c849649358c15f6158e6e17d65a725afe2e
102 Risk Score

Malware Insights

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

The PDF document contains numerous external links, many of which are SEO-optimized and point to other PDF files related to game hacks. The presence of a fake download button lure and the ML classifier's high confidence score indicate a malicious intent to trick users into downloading potentially harmful content. The primary URL, https://netcdn.xyz/app/406889139/hackear-coin-master-sin-root-game-hack, is likely the intended download destination.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9648

Heuristics 4

  • 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
  • External URI info PDF_URI
    PDF contains an external URL action
  • 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/hackear-coin-master-sin-root-game-hack
    • https://www.linzgau-kjh.de/images/coin-master-hack-https-coinms-net_GM406889139.pdf
    • https://www.linzgau-kjh.de/images/hack-coin-master-without-root_GM406889139.pdf
    • https://www.linzgau-kjh.de/images/coin-master-hack-download-2021_GM406889139.pdf
    • https://www.linzgau-kjh.de/images/coin-master-hack-pro-gamers_GM406889139.pdf
    • https://www.linzgau-kjh.de/images/coin-master-free-spin-link-app_GM406889139.pdf
    • https://www.linzgau-kjh.de/images/free-spin-app-coin-master_GM406889139.pdf
    • https://www.linzgau-kjh.de/images/coin-master-daily-free-spins-link-2021_GM406889139.pdf
    • https://www.linzgau-kjh.de/images/coinmasterfree_GM406889139.pdf
    • https://www.linzgau-kjh.de/images/wurst-hacks_GM479516143.pdf
    • https://www.linzgau-kjh.de/images/free-robux-mobile_GM431946152.pdf
    • https://www.linzgau-kjh.de/images/how-to-get-free-coins-on-coin-master_GM406889139.pdf
    • https://www.linzgau-kjh.de/images/hacks-roblox_GM431946152.pdf
    • https://www.linzgau-kjh.de/images/coin-master-free-spin-ml_GM406889139.pdf
    • https://www.linzgau-kjh.de/images/free-magical-chest-coin-master_GM406889139.pdf
    • https://www.linzgau-kjh.de/images/minecraft-that-you-can-play-for-free_GM479516143.pdf
    • https://www.linzgau-kjh.de/images/coin-master-hack-app-ios_GM406889139.pdf
    • https://www.linzgau-kjh.de/images/how-can-you-get-free-spins-on-coin-master_GM406889139.pdf
    • https://www.linzgau-kjh.de/images/robux-hack-2021_GM431946152.pdf
    • https://www.linzgau-kjh.de/images/free-spins-coin-master-apple_GM406889139.pdf
    • https://www.linzgau-kjh.de/images/free-game-packs-for-coin-master_GM406889139.pdf
    • http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00004790.bin
55e895a9ff5dab048dd1f0d39a069f39c0f8e9c7a9d10b19ce2c5d8cb3bedace
pdf-font-stream PDF embedded font (sfnt) at offset 0x4790 25196 bytes
font_01_sfnt_off00007f88.bin
381f6d859be141449dd645f7be1484d2a1cf49218dc471b402dae69eaa2b11d5
pdf-font-stream PDF embedded font (sfnt) at offset 0x7F88 2824 bytes
font_02_sfnt_off0000892b.bin
f8689f1783c870fa0771497041e7577d4712db894208691d27bb372dff2a265b
pdf-font-stream PDF embedded font (sfnt) at offset 0x892B 17716 bytes