PDF malware analysis — malicious · de7aada981d30cc4

MALICIOUS

PDF

46.7 KB Created: 2021-05-15 02:43:29 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)

MD5: 15d2284bf58df6da97bc99bb0df6d157 SHA-1: 2fe1d8f49d2611f2f58f332f013bee70fa1076c6 SHA-256: de7aada981d30cc413124deafc4eadbc1a9137e542237a7e80139e96dfd16736

102 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment

The PDF document contains numerous embedded URLs and a link farm, strongly suggesting a phishing or scam attempt. The document body, though partially corrupted, contains references to game hacks and a URL that likely leads to a malicious download or further phishing content. The presence of multiple external links and the ML classifier's high confidence score indicate a malicious intent.

Machine Learning

Nyx PDF Classifier malicious score 0.8948

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/hack-coin-master-for-iphone-game-hack
- http://tckontrola.hr/files/how-to-get-free-roblox-money_GM431946152.pdf
- http://tckontrola.hr/files/coin-master-free-coins-amp_GM406889139.pdf
- http://tckontrola.hr/files/how-to-play-minecraft-online-for-free_GM479516143.pdf
- http://tckontrola.hr/files/coin-master-daily-free-spins-and-coins-2021_GM406889139.pdf
- http://tckontrola.hr/files/coinmaster-blogspot_GM406889139.pdf
- https://tckontrola.hr/files/coin-master-free-spins-and-coins_GM406889139.pdf
- http://tckontrola.hr/files/freespinandcoin-blogspot-coin-master_GM406889139.pdf
- http://tckontrola.hr/files/apps-to-get-minecraft-for-free_GM479516143.pdf
- https://tckontrola.hr/files/coin-master-free-spins-hack-link_GM406889139.pdf
- http://tckontrola.hr/files/free-roblox-toy-codes_GM431946152.pdf
- http://tckontrola.hr/files/coin-master-claim-spins_GM406889139.pdf
- http://tckontrola.hr/files/coin-master-hack-no-verification_GM406889139.pdf
- https://tckontrola.hr/files/coin-master-hack-100-working_GM406889139.pdf
- https://tckontrola.hr/files/ios-coin-master-hack_GM406889139.pdf
- https://tckontrola.hr/files/master-free-spins-and-coins_GM406889139.pdf
- http://tckontrola.hr/files/minecraft-games-to-play-for-free_GM479516143.pdf
- http://tckontrola.hr/files/huskybuckscom-free-robux_GM431946152.pdf
- https://tckontrola.hr/files/i-didnt-get-my-free-spins-in-coin-master_GM406889139.pdf
- https://tckontrola.hr/files/spin-hack-for-coin-master_GM406889139.pdf
- http://tckontrola.hr/files/minecraft-bedrock-edition-pc-download-free_GM479516143.pdf
- http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 3

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`stream_003_off000049cd.bin` `91e51e88f31c4cb674ca71214cf936813dee29cd0f93af98f57aeba3d81e6f0c`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x49CD	24036 bytes
`font_01_sfnt_off00008030.bin` `e06aca5f85e50ae6cefda302c5299c18ab6d27c174f74f0bb0ee8efa7ccb4468`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x8030	8676 bytes
`font_02_sfnt_off000094bb.bin` `a643bdf6fb2c46f92d7d27c645ae746f9817b2095321c6eed50ee62637779c53`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x94BB	18220 bytes

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