PDF malware analysis — malicious · a674fc4435e25375

MALICIOUS

PDF

41.9 KB Created: 2021-04-30 19:38:00 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-12

MD5: b2635ce61193b3173891b51b659f6c10 SHA-1: 7ff20e7f77ef0c3ae93862fa6f1772693472ac7e SHA-256: a674fc4435e25375bc7366c04f986429de631d9d9a080e3109cee36f9f3aab7c

160 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment

The PDF document contains multiple links, including one identified as a malicious redirector, leading to a 'game hack' lure. The document body explicitly mentions 'Roblox Saiyan Simulator Hack' and contains a call to action to access a generator. This indicates a phishing or scam attempt designed to trick users into visiting malicious sites, likely for credential harvesting or malware delivery.

Machine Learning

Nyx PDF Classifier malicious score 0.9941

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 https://netcdn.xyz/app/431946152/roblox-saiyan-simulator-hack-game-hack In PDF document text
- http://library.fikes.upnvj.ac.id/repository/boku-no-roblox-remastered-level-up-hack.pdfIn PDF document text
- http://library.fikes.upnvj.ac.id/repository/cheat-codes-for-roblox-candy-war-tycoon.pdfIn PDF document text
- http://library.fikes.upnvj.ac.id/repository/free-robux-pfficial.pdfIn PDF document text
- http://library.fikes.upnvj.ac.id/repository/roblox-pet-simulator-jump-hack.pdfIn PDF document text
- http://library.fikes.upnvj.ac.id/repository/free-robux-generator-2021-no-human-verification-real.pdfIn PDF document text
- http://library.fikes.upnvj.ac.id/repository/cheat-roblox-csgo.pdfIn PDF document text
- http://library.fikes.upnvj.ac.id/repository/20219-walk-speed-roblox-cheat.pdfIn PDF document text
- http://library.fikes.upnvj.ac.id/repository/how-to-make-vip-servers-for-free-in-roblox.pdfIn PDF document text
- http://library.fikes.upnvj.ac.id/repository/noob-vs-pro-vs-hacker-vs-god-roblox-bloxburg.pdfIn PDF document text
- http://library.fikes.upnvj.ac.id/repository/how-to-get-free-robux-2021-may.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
`stream_003_off0000444c.bin`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x444C	26828 bytes
SHA-256: `d72eaa3da80202e252e9ec874de72eee1c0e1063ff8cf7aea247d4ee37931797`
`font_01_sfnt_off0000800c.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x800C	18984 bytes
SHA-256: `8dd05f8f781d17165441143364d9de4ba185e1b8142108ec2c1b8680e6ca6c3d`

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