PDF malware analysis — malicious · 64474aa4ed81ad94

MALICIOUS

PDF

42.9 KB Created: 2021-05-13 01:43:09 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)

MD5: 3bb6e2dd297b6a2e8cb388bf34cb7d27 SHA-1: 780510ea40ac4990e06465cb9490f9f36b059459 SHA-256: 64474aa4ed81ad94ae273ecb2dffd19f3b06628c03dca840b6bfae7de0a727de

102 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The PDF document contains numerous embedded links, forming a link farm, that direct users to websites promising free Robux or game hacks. This is a common lure for phishing or malware distribution. The ML classifier also strongly indicated maliciousness, supporting the assessment of a malicious workflow.

Machine Learning

Nyx PDF Classifier malicious score 0.9971

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/431946152/who-to-get-free-robux-game-hack
- http://bassacctaxservices.com/images/free-minecraft-games-for-kids_GM479516143.pdf
- http://bassacctaxservices.com/images/hack-client_GM479516143.pdf
- http://bassacctaxservices.com/images/free-minecraft-accounts-reddit_GM479516143.pdf
- http://bassacctaxservices.com/images/free-spin-coin-master-new-link_GM406889139.pdf
- http://bassacctaxservices.com/images/free-robux-that-actually-works_GM431946152.pdf
- http://bassacctaxservices.com/images/free-robux-no-anti-bot-verification_GM431946152.pdf
- http://bassacctaxservices.com/images/coin-master-game-hacking-tricks_GM406889139.pdf
- http://bassacctaxservices.com/images/how-to-hack-roblox-jailbreak_GM431946152.pdf
- http://bassacctaxservices.com/images/websites-that-give-you-free-robux_GM431946152.pdf
- http://bassacctaxservices.com/images/coin-master-email-free-spins_GM406889139.pdf
- http://bassacctaxservices.com/images/links-for-free-spins-for-coin-master_GM406889139.pdf
- http://bassacctaxservices.com/images/robux-cheat_GM431946152.pdf
- http://bassacctaxservices.com/images/free-robux-generator-no-human-verification_GM431946152.pdf
- http://bassacctaxservices.com/images/roblox-fun-com-free-robux_GM431946152.pdf
- http://bassacctaxservices.com/images/how-to-get-free-robux-hack_GM431946152.pdf
- http://bassacctaxservices.com/images/coin-master-free-spins-promo-code_GM406889139.pdf
- http://bassacctaxservices.com/images/free-robux-promo-codes-2021_GM431946152.pdf
- http://bassacctaxservices.com/images/coin-master-hack-apk-april-12-2021_GM406889139.pdf
- http://bassacctaxservices.com/images/coin-master-free-spins-hack-no-human-verification_GM406889139.pdf
- http://bassacctaxservices.com/images/roblox-rewards-robux_GM431946152.pdf
- http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 2

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`stream_003_off0000495d.bin` `632bf0adb486513245f3583108df243a849a907384f0623db27443f22526a256`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x495D	25668 bytes
`font_01_sfnt_off000084ef.bin` `7ba6f7de64c6d8ae6f5469fb20d9bd46bb355649f5c0a9ce8a2cee34149577d7`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x84EF	18484 bytes

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