PDF malware analysis — malicious · 885fd37f145b4703

MALICIOUS

PDF

35.1 KB Created: 2021-07-02 01:47:25 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)

MD5: 584d959e7393b599b06656060a26136b SHA-1: aaa49ec784612441ff953b50709695bb961de5c9 SHA-256: 885fd37f145b4703080894dd63cf394bace66001d8d590b98fcf6dfd8f913716

102 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment

The PDF document contains numerous embedded links, many of which are part of a link farm designed to appear as legitimate resources for game-related items and cheats. The primary URL, http://netcdn.co/app/431946152/free-robloxs-reedem-cards-game-hack, suggests a lure for free game currency or items, a common tactic for distributing malware. The ML classifier also strongly indicated maliciousness.

Machine Learning

Nyx PDF Classifier malicious score 0.9980

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 http://netcdn.co/app/431946152/free-robloxs-reedem-cards-game-hack
- https://opac.umrah.ac.id/repository/coin-master-rewards-2021_GM406889139.pdf
- https://opac.umrah.ac.id/repository/how-to-get-free-stuff-in-catalog-roblox-2021-nick_GM431946152.pdf
- https://opac.umrah.ac.id/repository/minecraft-xbox-one-free_GM479516143.pdf
- https://opac.umrah.ac.id/repository/redeem-roblox-virtual-item-free-codes_GM431946152.pdf
- https://opac.umrah.ac.id/repository/roblox-rocitizens-money-hack-cheat-engine_GM431946152.pdf
- https://opac.umrah.ac.id/repository/roblox-how-to-get-free-faces_GM431946152.pdf
- https://opac.umrah.ac.id/repository/how-to-get-free-godly-roblox-mm2-new_GM431946152.pdf
- https://opac.umrah.ac.id/repository/free-2021-promo-codes-roblox_GM431946152.pdf
- https://opac.umrah.ac.id/repository/game-toolbox_GM479516143.pdf
- https://opac.umrah.ac.id/repository/how-to-cheat-on-roblox-murder_GM431946152.pdf
- https://opac.umrah.ac.id/repository/pubg-uc-200_GM1330123889.pdf
- https://opac.umrah.ac.id/repository/coin-master-free-spins-hack-apk-download_GM406889139.pdf
- https://opac.umrah.ac.id/repository/freerobuxdemo_GM431946152.pdf
- https://opac.umrah.ac.id/repository/synapse-roblox-free-2021_GM431946152.pdf
- https://opac.umrah.ac.id/repository/free-robux-roblox-promo-codes_GM431946152.pdf
- https://opac.umrah.ac.id/repository/get-free-spins-coin-master_GM406889139.pdf
- https://opac.umrah.ac.id/repository/free-spins-coin-master-without-completing-offers_GM406889139.pdf
- https://opac.umrah.ac.id/repository/proxo-descargar-roblox-hack-we-are-devs_GM431946152.pdf
- https://opac.umrah.ac.id/repository/free-robux-generator-no-verification_GM431946152.pdf
- https://opac.umrah.ac.id/repository/how-to-hack-and-get-robux-site-youtubecom_GM431946152.pdf
- http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 2

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`font_00_sfnt_off00003126.bin` `e8bf32cb57f42aa6c136fb598cd0a262d649687a41d45740a2416481b9be5fc2`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x3126	22676 bytes
`font_01_sfnt_off000063e4.bin` `da5bde9ca3dc2314c52514810e62702742746a0fdf00fa0d2a156923cf717cb6`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x63E4	19084 bytes

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