PDF malware analysis — malicious · 77d4950c619a1a1d

MALICIOUS

PDF

43.4 KB Created: 2021-06-03 11:16:00 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-26

MD5: 37f5b3a8e028033a13b4129ef6f6eeff SHA-1: a0c0bd40b336a0f90bbbcb4f911f80528f0ad5a6 SHA-256: 77d4950c619a1a1d9651a6de94bab9de8dd2421d7dd103427560d54760b9b1c5

200 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

This PDF document employs a lure related to 'Roblox Robux Hack' and impersonates 'Outlook' to trick users into clicking malicious links. The primary link directs to a known malicious redirector infrastructure, which likely serves as a gateway to further malicious content or exploits. The presence of multiple related PDF files in the URLs suggests a campaign distributing various game-related lures.

Machine Learning

Nyx PDF Classifier malicious score 0.9865

Heuristics 5

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.
Brand-impersonation credential phishing lure high SE_BRAND_CREDENTIAL_PHISH

Document impersonates a well-known consumer brand and uses account-security / verification language ('unusual activity', 'account on hold', 'verify your account') to steer the reader to a credential-harvesting link. Corroborated by: call-to-action link host does not match the impersonated brand: https://netcdn.online/app/431946152/roblox-robux-hack-game-hack.
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.online/app/431946152/roblox-robux-hack-game-hack In PDF document text
- https://www.polresbadung.id/new/public/ckfinder/userfiles/files/coin-master-hack-apk-iphone_GM406889139.pdfIn PDF document text
- https://www.polresbadung.id/new/public/ckfinder/userfiles/files/free-robux-generator-2021_GM431946152.pdfIn PDF document text
- https://www.polresbadung.id/new/public/ckfinder/userfiles/files/how-to-download-minecraft-for-free-on-pc_GM479516143.pdfIn PDF document text
- https://www.polresbadung.id/new/public/ckfinder/userfiles/files/coin-master-hack-app-ios_GM406889139.pdfIn PDF document text
- https://www.polresbadung.id/new/public/ckfinder/userfiles/files/roblox-free-games-guest_GM431946152.pdfIn PDF document text
- https://www.polresbadung.id/new/public/ckfinder/userfiles/files/haktuts-coin-master-free-daily-spins_GM406889139.pdfIn PDF document text
- https://www.polresbadung.id/new/public/ckfinder/userfiles/files/coin-master-official-fan-page_GM406889139.pdfIn PDF document text
- https://www.polresbadung.id/new/public/ckfinder/userfiles/files/coin-spin_GM406889139.pdfIn PDF document text
- https://www.polresbadung.id/new/public/ckfinder/userfiles/files/blox-fish-free-robux_GM431946152.pdfIn PDF document text
- https://www.polresbadung.id/new/public/ckfinder/userfiles/files/minecraft-classic-free_GM479516143.pdfIn PDF document text
- https://www.polresbadung.id/new/public/ckfinder/userfiles/files/ww-roblox-come_GM431946152.pdfIn PDF document text
- https://www.polresbadung.id/new/public/ckfinder/userfiles/files/free-robux-only-1-step_GM431946152.pdfIn PDF document text
- https://www.polresbadung.id/new/public/ckfinder/userfiles/files/how-to-get-free-robux-on-computer_GM431946152.pdfIn PDF document text
- https://www.polresbadung.id/new/public/ckfinder/userfiles/files/minecraft-free-download-windows_GM479516143.pdfIn PDF document text
- https://www.polresbadung.id/new/public/ckfinder/userfiles/files/coin-master-free-spins-link-2021_GM406889139.pdfIn PDF document text
- https://www.polresbadung.id/new/public/ckfinder/userfiles/files/free-robux-obby_GM431946152.pdfIn PDF document text
- https://www.polresbadung.id/new/public/ckfinder/userfiles/files/minecraft-for-chromebook-free_GM479516143.pdfIn PDF document text
- https://www.polresbadung.id/new/public/ckfinder/userfiles/files/free-roblox-accounts-with-robux-that-work-2021_GM431946152.pdfIn PDF document text
- https://www.polresbadung.id/new/public/ckfinder/userfiles/files/free-roblox-groups-with-funds_GM431946152.pdfIn PDF document text
- https://www.polresbadung.id/new/public/ckfinder/userfiles/files/roblox-hack-com_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
`stream_004_off00004e3a.bin`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x4E3A	24564 bytes
SHA-256: `935ef78a8df5a8a72d800b0f34cb2cb2fc0a97a867e1a115fc790827895a219d`
`font_01_sfnt_off000086a0.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x86A0	18320 bytes
SHA-256: `fa424f86a9ddd472d540fc30f07119be4b576a9306b5f7bb82c207f2bb92a2b4`

Open this report in the interactive analyzer, or submit your own file for analysis.