PDF malware analysis — malicious · 3df657c2c7f851bf

MALICIOUS

PDF

41.3 KB Created: 2021-05-14 13:11:47 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)

MD5: 4d07409607f7159678b6507822f48def SHA-1: 708a995b5f58727fabe3752533bc459b13aaa8a5 SHA-256: 3df657c2c7f851bfdb86406ed6d02f9bd51275ed3e10c4cbdc9180a3f7058985

102 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The PDF document contains a large number of external links, many of which point to pages offering game cheats and hacks. The ML classifier strongly indicated maliciousness, and the presence of a download button lure further supports a malicious intent. The primary goal appears to be directing users to download potentially harmful files disguised as game enhancements.

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/406889139/android-coin-master-hack-game-hack
- http://www.maakherumusic.net/images/free-spin-coin-master-ios_GM406889139.pdf
- http://www.maakherumusic.net/images/how-to-get-free-robux-com_GM431946152.pdf
- http://www.maakherumusic.net/images/real-coin-master-free-spins_GM406889139.pdf
- http://www.maakherumusic.net/images/free-coin-master-spin-and-coin-link_GM406889139.pdf
- http://www.maakherumusic.net/images/how-do-u-get-free-robux_GM431946152.pdf
- http://www.maakherumusic.net/images/link-coin-master_GM406889139.pdf
- http://www.maakherumusic.net/images/robux-generator-no-verification-2021_GM431946152.pdf
- http://www.maakherumusic.net/images/how-to-send-free-spins-on-coin-master_GM406889139.pdf
- http://www.maakherumusic.net/images/robux-free-com_GM431946152.pdf
- http://www.maakherumusic.net/images/coin-master-free-spins-link-2021-app_GM406889139.pdf
- http://www.maakherumusic.net/images/blox-rewards_GM431946152.pdf
- http://www.maakherumusic.net/images/free-robux-live_GM431946152.pdf
- http://www.maakherumusic.net/images/free-roblox-gear_GM431946152.pdf
- http://www.maakherumusic.net/images/what-is-exploiting-in-roblox_GM431946152.pdf
- http://www.maakherumusic.net/images/free-spin-coin-master-link-download_GM406889139.pdf
- http://www.maakherumusic.net/images/coin-master-ad_GM406889139.pdf
- http://www.maakherumusic.net/images/free-roblox-hair-boy_GM431946152.pdf
- http://www.maakherumusic.net/images/coin-master-daily-free-spins-link-today-2021-free_GM406889139.pdf
- http://www.maakherumusic.net/images/free-robux-not-a-scam_GM431946152.pdf
- http://www.maakherumusic.net/images/coin-master-free-spins-links-2021_GM406889139.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_off000047d8.bin` `7caaba484b169f692ff942ea3619c421b1ae720fbc634c1b5d4b4a7a0499aef5`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x47D8	24648 bytes
`font_01_sfnt_off0000803f.bin` `f3c500806d6f063b4976708b2d9a1b6d3d25ac0b83d617d4d708477778ab7703`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x803F	17888 bytes

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