PDF malware analysis — malicious · a0c77aeb9e214124

MALICIOUS

PDF

43.6 KB Created: 2021-05-10 22:25:19 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)

MD5: 1928adc015855292d11c73886af7fc55 SHA-1: 37ddefe2367a4cdf7c3528e2e98fe4c50b963690 SHA-256: a0c77aeb9e214124add032f4d5a69ea9389180492d04491837d0abfec07859e4

82 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1204.002 Malicious Link

This PDF document employs social engineering tactics, specifically a 'ClickFix' lure, instructing the user to execute a command. This is a common method to bypass security restrictions and download a secondary payload from URLs such as https://netcdn.xyz/app/479516143/how-to-get-minecraft-for-free-on-chromebook-game-hack. The ML classifier also strongly indicated maliciousness.

Machine Learning

Nyx PDF Classifier malicious score 0.9969

Heuristics 4

ClickFix social engineering attack high SE_CLICKFIX

Document instructs the user to press Win+R or paste a command into a terminal — consistent with ClickFix attacks that bypass macro restrictions by tricking users into running malicious commands directly
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/479516143/how-to-get-minecraft-for-free-on-chromebook-game-hack
- https://masseymotorcars.com/images/coin-master-hack-2021_GM406889139.pdf
- https://masseymotorcars.com/images/how-to-get-free-robux-easy-on-phone_GM431946152.pdf
- https://masseymotorcars.com/images/free-robux-on-phone_GM431946152.pdf
- https://masseymotorcars.com/images/e-free-roblox_GM431946152.pdf
- https://masseymotorcars.com/images/coin-master-free_GM406889139.pdf
- https://masseymotorcars.com/images/get-free-robux-today_GM431946152.pdf
- https://masseymotorcars.com/images/https-oprewards-com-roblox_GM431946152.pdf
- https://masseymotorcars.com/images/coin-master-coins-free_GM406889139.pdf
- https://masseymotorcars.com/images/coin-master-free-spins-generator-no-verification_GM406889139.pdf
- https://masseymotorcars.com/images/blogspot-coin-master-free-spins_GM406889139.pdf
- https://masseymotorcars.com/images/can-u-get-free-robux_GM431946152.pdf
- https://masseymotorcars.com/images/coin-master-free-spins-link-blogspot_GM406889139.pdf
- https://masseymotorcars.com/images/2021-roblox_GM431946152.pdf
- https://masseymotorcars.com/images/free-coin-master-hacks-no-verification_GM406889139.pdf
- https://masseymotorcars.com/images/reddit-coin-master-hack_GM406889139.pdf
- https://masseymotorcars.com/images/freespins-coin-master_GM406889139.pdf
- https://masseymotorcars.com/images/hack-coin-master-without-human-verification_GM406889139.pdf
- https://masseymotorcars.com/images/instagram-free-coin-master-spins_GM406889139.pdf
- https://masseymotorcars.com/images/wizard-hacks_GM479516143.pdf
- https://masseymotorcars.com/images/free-robux-no-verification-needed_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_off00004be1.bin` `0a186020d89618e290350592b704e828d8755fddb3debcfee296902e52633cfc`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x4BE1	25932 bytes
`font_01_sfnt_off0000873b.bin` `3a4e3f8378819557dde5b27ff4793c702252829ac96e9550bc2b3bfa5905855e`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x873B	18628 bytes

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