PDF malware analysis — malicious · 7e1f9f07bcb0a03e

MALICIOUS

PDF

35.8 KB Created: 2021-07-04 18:53:41 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-27

MD5: bdf18c9299f185975d6edc6dddbc5102 SHA-1: 5146db195c147892c0b1eaa0e0393fbb49b41657 SHA-256: 7e1f9f07bcb0a03ee6d22c8e933665c807c35a87ee010a86cd66a3e885dac9c9

220 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment

The PDF document contains numerous links to websites offering free in-game currency and hacks, acting as a lure for users. It redirects to malicious infrastructure and a large number of SEO-optimized PDF links, suggesting a link farm designed to drive traffic to potentially malicious sites. The document body and heuristics indicate a clear intent to deceive users into clicking these links, likely for phishing or malware distribution.

Machine Learning

Nyx PDF Classifier malicious score 0.9980

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.
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
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.tw/app/431946152/free-robux-2021-no-human-verification-game-hack In PDF document text
- https://pdiperjuanganbali.id/new/public/ckfinder/userfiles/files/coin-master-hacking-news_GM406889139.pdfIn PDF document text
- https://pdiperjuanganbali.id/new/public/ckfinder/userfiles/files/minecraft-fly-hack_GM479516143.pdfIn PDF document text
- https://pdiperjuanganbali.id/new/public/ckfinder/userfiles/files/free-spin-hack-coin-master-2021_GM406889139.pdfIn PDF document text
- https://pdiperjuanganbali.id/new/public/ckfinder/userfiles/files/is-robux-free-for-today_GM431946152.pdfIn PDF document text
- https://pdiperjuanganbali.id/new/public/ckfinder/userfiles/files/play-roblox-free-on-google_GM431946152.pdfIn PDF document text
- https://pdiperjuanganbali.id/new/public/ckfinder/userfiles/files/coin-master-hack-game-download-ios_GM406889139.pdfIn PDF document text
- https://pdiperjuanganbali.id/new/public/ckfinder/userfiles/files/how-to-get-minecraft-for-free-on-xbox_GM479516143.pdfIn PDF document text
- https://pdiperjuanganbali.id/new/public/ckfinder/userfiles/files/how-to-get-free-robux_GM431946152.pdfIn PDF document text
- https://pdiperjuanganbali.id/new/public/ckfinder/userfiles/files/hack-to-find-peoples-game-in-roblox-cheat_GM431946152.pdfIn PDF document text
- https://pdiperjuanganbali.id/new/public/ckfinder/userfiles/files/roblox-bee-hive-simulator-how-to-get-a-free-egg_GM431946152.pdfIn PDF document text
- https://pdiperjuanganbali.id/new/public/ckfinder/userfiles/files/tiktok-free-verified_GM835599320.pdfIn PDF document text
- https://pdiperjuanganbali.id/new/public/ckfinder/userfiles/files/google-play-coin-master-free-spins_GM406889139.pdfIn PDF document text
- https://pdiperjuanganbali.id/new/public/ckfinder/userfiles/files/pokemon-go-free-quick-catch_GM1094591345.pdfIn PDF document text
- https://pdiperjuanganbali.id/new/public/ckfinder/userfiles/files/how-to-get-minecraft-windows-10-edition-for-free_GM479516143.pdfIn PDF document text
- https://pdiperjuanganbali.id/new/public/ckfinder/userfiles/files/roblox-com-free-robux_GM431946152.pdfIn PDF document text
- https://pdiperjuanganbali.id/new/public/ckfinder/userfiles/files/download-free-hacks-for-roblox_GM431946152.pdfIn PDF document text
- https://pdiperjuanganbali.id/new/public/ckfinder/userfiles/files/hack-coin-master-for-android_GM406889139.pdfIn PDF document text
- https://pdiperjuanganbali.id/new/public/ckfinder/userfiles/files/free-robux-roblox-group_GM431946152.pdfIn PDF document text
- https://pdiperjuanganbali.id/new/public/ckfinder/userfiles/files/free-coin-master-spins-without-human-verification_GM406889139.pdfIn PDF document text
- https://pdiperjuanganbali.id/new/public/ckfinder/userfiles/files/tiktok-for-free_GM835599320.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_off000032f8.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x32F8	22332 bytes
SHA-256: `c5ff0022d0aacad743e823cf852c0bbcd0c0b9c53e19b47b42b1939a4e2cb31f`
`font_01_sfnt_off000064dc.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x64DC	19736 bytes
SHA-256: `415a8643b263bdb8a5e4ae51f1e0119ae52f9187a77a7c28158d674e6dc65c25`

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