PDF malware analysis — malicious · aed69da4311afc95

MALICIOUS

PDF

43.0 KB Created: 2021-06-13 20:04:23 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)

MD5: 8d625d7dec29dc008577d0e75fc5c9af SHA-1: 207f643b19162b0f39f21725665c99e0d85cdea3 SHA-256: aed69da4311afc95b98cc5aefc536bfd5313516ee0845d97ab03487b0e7642fa

102 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

This PDF document contains numerous embedded links, identified as a link farm, that direct users to external websites. The primary URL, http://netcdn.co/app/431946152/pastebin-free-items-roblox-game-hack, suggests a lure for game-related cheats or items, which is a common tactic for distributing malware. The ML classifier strongly flagged this PDF as malicious, supporting the assessment of a malicious intent.

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 http://netcdn.co/app/431946152/pastebin-free-items-roblox-game-hack
- http://elib-s2.ubl.ac.id/repository/roblox-how-to-get-free-followers_GM431946152.pdf
- http://elib-s2.ubl.ac.id/repository/free-coins-and-spins-for-coin-master_GM406889139.pdf
- http://elib-s2.ubl.ac.id/repository/minecraft-toys-for-free_GM479516143.pdf
- http://elib-s2.ubl.ac.id/repository/how-to-get-free-roblox-jailbreak-hacks_GM431946152.pdf
- http://elib-s2.ubl.ac.id/repository/how-to-hack-roblox-to-get-robux_GM431946152.pdf
- http://elib-s2.ubl.ac.id/repository/free-week-old-accounts-roblox_GM431946152.pdf
- http://elib-s2.ubl.ac.id/repository/free-spins-from-coin-master_GM406889139.pdf
- http://elib-s2.ubl.ac.id/repository/how-do-you-hack-an-acounte-on-roblox_GM431946152.pdf
- http://elib-s2.ubl.ac.id/repository/free-robux-add-only-today_GM431946152.pdf
- http://elib-s2.ubl.ac.id/repository/free-robux-apk_GM431946152.pdf
- http://elib-s2.ubl.ac.id/repository/earn-free-robux-for-roblox_GM431946152.pdf
- http://elib-s2.ubl.ac.id/repository/free-robux-scam_GM431946152.pdf
- http://elib-s2.ubl.ac.id/repository/theme-park-tycoon-2-hack-roblox_GM431946152.pdf
- http://elib-s2.ubl.ac.id/repository/haktuts-coin-master-free-daily-spins_GM406889139.pdf
- http://elib-s2.ubl.ac.id/repository/how-to-get-free-minecraft-skins_GM479516143.pdf
- http://elib-s2.ubl.ac.id/repository/roblox-free-gamepass-hack_GM431946152.pdf
- http://elib-s2.ubl.ac.id/repository/roblox-is-being-hacked-9-21-2021_GM431946152.pdf
- http://elib-s2.ubl.ac.id/repository/begone-nerds-roblox-hacking_GM431946152.pdf
- http://elib-s2.ubl.ac.id/repository/free-2k-robux_GM431946152.pdf
- http://elib-s2.ubl.ac.id/repository/roblox-free-packages-2021_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_off00004846.bin` `0202e9549e60884e73bbf9e7eca094f356c1523913de44039f906f6f86127951`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x4846	25728 bytes
`font_01_sfnt_off00008474.bin` `1d10f018a851126d2ba973347facdf2c52e2f13e2abb23189918e69212cc238d`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x8474	18816 bytes

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