PDF malware analysis — malicious · aaac40d60a636f4e

MALICIOUS

PDF

55.2 KB Created: 2021-05-17 02:21:37 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)

MD5: cccda2db4b90187ae0a8a05cbc865c8b SHA-1: 2a07a5a5e3afb34e0ab70c4132dc03e9e8540ebc SHA-256: aaac40d60a636f4ece3cb031e0a38a3a8f75e1325751cc3f9b0359c3cf43eb22

102 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment

The PDF contains a large number of external links, many of which are structured as a link farm. The ML classifier also flagged this PDF as malicious. The presence of a "download button" heuristic suggests a lure to trick users into clicking these links. The document body, though partially corrupted, contains references to "hacks" and game-related terms, indicating a potential scam or malware distribution attempt.

Machine Learning

Nyx PDF Classifier malicious score 0.8531

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/coin-mast-hacks-game-hack
- http://pechativmoskve.ru/images/coinmaster-rewards_GM406889139.pdf
- http://pechativmoskve.ru/images/hack-to-send-gold-cards-on-coin-master_GM406889139.pdf
- http://pechativmoskve.ru/images/coin-master-free-spin-and-coins-links_GM406889139.pdf
- http://pechativmoskve.ru/images/free-robux-generator-no-verification_GM431946152.pdf
- http://pechativmoskve.ru/images/free-robux-no-human-verification-generator_GM431946152.pdf
- http://pechativmoskve.ru/images/free-robux-games-that-actually-work_GM431946152.pdf
- http://pechativmoskve.ru/images/coin-master-free-spins-daily-link-updated_GM406889139.pdf
- http://pechativmoskve.ru/images/roblox-april-fools-hack_GM431946152.pdf
- http://pechativmoskve.ru/images/coinmaster-gps-user-review-coinmaster-coin-master-hack-pagedemo-index_GM406889139.pdf
- http://pechativmoskve.ru/images/free-attacks-on-coin-master_GM406889139.pdf
- http://pechativmoskve.ru/images/how-to-make-your-own-minecraft-server-for-free_GM479516143.pdf
- http://pechativmoskve.ru/images/roblox-hack-download_GM431946152.pdf
- http://pechativmoskve.ru/images/coin-master-hack-with-facebook-login_GM406889139.pdf
- http://pechativmoskve.ru/images/give-free-robux_GM431946152.pdf
- http://pechativmoskve.ru/images/robux-generator-no-verification-needed_GM431946152.pdf
- http://pechativmoskve.ru/images/girl-roblox-avatar_GM431946152.pdf
- http://pechativmoskve.ru/images/roblox-hack-me_GM431946152.pdf
- http://pechativmoskve.ru/images/minecraft-pocket-edition-mods-for-free_GM479516143.pdf
- http://pechativmoskve.ru/images/robux-hack-2021_GM431946152.pdf
- http://pechativmoskve.ru/images/coin-master-hack-tool-v1-9-download-free-pc_GM406889139.pdf
- http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 5

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`stream_003_off00004c58.bin` `393943bb450332845297bae0c63ed1a5125aa86ff915b26e2951cc22998d8612`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x4C58	26372 bytes
`font_01_sfnt_off00008a44.bin` `e7854aff7cbc8fbdeb85d2b3d6248d12dc820ede8a581f4eac107fa6446c2222`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x8A44	3088 bytes
`font_02_sfnt_off0000950f.bin` `cf7ae5cf6bef3222f5a26bec705b492fed0278aec6b16ec101aeda46e0edd2b2`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x950F	7960 bytes
`font_03_sfnt_off0000a835.bin` `777b684355b1eef5a972c4758674727e521bcb83e374608eb379fd1ca070469a`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xA835	17716 bytes
`font_04_sfnt_off0000c899.bin` `fac9a06ceb5574feb8580c075df3ef69dfbd0efa4947186cfe90f11b68eaafb0`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xC899	4272 bytes

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