PDF malware analysis — malicious · 1f4b45fd97dc9606

MALICIOUS

PDF

35.6 KB Created: 2021-06-29 23:18:13 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-11-22

MD5: 04c1229b2d2f01be2c4a50ee7710139e SHA-1: f6db27a8edf8333a9783397910485922da30cbb8 SHA-256: 1f4b45fd97dc9606ab265a2d92e3838e262e164a18b016d15c3d446898bdd05f

160 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment

This PDF document employs a lure of game hacks and free generators to entice users. It contains links to known malicious redirector infrastructure, specifically http://netcdn.co/app/431946152/mr-pretty-good-job-so-far-roblox-hack-game-hack, which likely serves as a gateway to further malicious content or downloads. The ML classifier also strongly indicated maliciousness.

Machine Learning

Nyx PDF Classifier malicious score 0.9980

Heuristics 4

PDF links to a 'free generator / game hack' redirector critical PDF_GAME_HACK_REDIRECT_LURE

PDF's clickable action targets a redirector of the form /app/<id>/<slug>-game-hack — the landing-page shape of a large SEO 'free spins / generator / game hack' lure family that funnels victims through rotating disposable hosts to a malware/scam payload. The multi-link variants also trip ML/link-farm rules; this catches the single-link variants that otherwise score clean. CRITICAL on its own: the /app/<id>/<slug>-game-hack path shape is unambiguous scam infra, and the host rotates so a host-list match can't be relied on.
PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK

PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
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
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/mr-pretty-good-job-so-far-roblox-hack-game-hack In PDF document text
- https://tjiko.de/wp-content/uploads/fsqm-files/roblox-hacker-beta-robux_GM431946152.pdfIn PDF document text
- https://tjiko.de/wp-content/uploads/fsqm-files/insane-admin-hack-script-roblox-pastebin_GM431946152.pdfIn PDF document text
- https://tjiko.de/wp-content/uploads/fsqm-files/minecraft-dungeons-free-download_GM479516143.pdfIn PDF document text
- https://tjiko.de/wp-content/uploads/fsqm-files/auto-keyboard-roblox-free_GM431946152.pdfIn PDF document text
- https://tjiko.de/wp-content/uploads/fsqm-files/roblox-strucid-battle-royale-aimbot-hack-full-lua_GM431946152.pdfIn PDF document text
- https://tjiko.de/wp-content/uploads/fsqm-files/roblox-sword-fighting-tournament-points-hack_GM431946152.pdfIn PDF document text
- https://tjiko.de/wp-content/uploads/fsqm-files/how-to-hack-into-someones-roblox-account_GM431946152.pdfIn PDF document text
- https://tjiko.de/wp-content/uploads/fsqm-files/is-minecraft-free-on-ps4_GM479516143.pdfIn PDF document text
- https://tjiko.de/wp-content/uploads/fsqm-files/free-robux-no-human-verification-jeuxvideocom_GM431946152.pdfIn PDF document text
- https://tjiko.de/wp-content/uploads/fsqm-files/roblox-cheats-for-money-2021_GM431946152.pdfIn PDF document text
- https://tjiko.de/wp-content/uploads/fsqm-files/pokemon-robux-hack_GM431946152.pdfIn PDF document text
- https://tjiko.de/wp-content/uploads/fsqm-files/how-to-get-minecraft-for-free-on-iphone_GM479516143.pdfIn PDF document text
- https://tjiko.de/wp-content/uploads/fsqm-files/how-do-you-speed-hack-on-roblox-jailbreak_GM431946152.pdfIn PDF document text
- https://tjiko.de/wp-content/uploads/fsqm-files/how-to-put-in-hack-on-any-roblox-game_GM431946152.pdfIn PDF document text
- https://tjiko.de/wp-content/uploads/fsqm-files/como-hackear-la-cuenta-de-tu-amigo-roblox_GM431946152.pdfIn PDF document text
- https://tjiko.de/wp-content/uploads/fsqm-files/free-games-at-roblox-com-browser_GM431946152.pdfIn PDF document text
- https://tjiko.de/wp-content/uploads/fsqm-files/roblox-com-robux-cheat_GM431946152.pdfIn PDF document text
- https://tjiko.de/wp-content/uploads/fsqm-files/free-robux-free-to-pay-or-codes_GM431946152.pdfIn PDF document text
- https://tjiko.de/wp-content/uploads/fsqm-files/tuto-comment-hack-robux_GM431946152.pdfIn PDF document text
- https://tjiko.de/wp-content/uploads/fsqm-files/robux-hack-generator_GM431946152.pdfIn PDF document text
- http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`font_00_sfnt_off0000315b.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x315B	22636 bytes
SHA-256: `24f51f2efcabb5182368a092458cb39a2fc3f2623dfe41e268f9c5203b8c6e5c`
`font_01_sfnt_off00006402.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x6402	19792 bytes
SHA-256: `93fe23602f7a25df922afc87bacb6a97adccaea455b92abc91a15f46f502adea`

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