PDF malware analysis — malicious · 8059be476a1f30be

MALICIOUS

PDF

33.0 KB Created: 2021-07-20 09:48:30 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-25

MD5: 74145a7ad5bbbc55c747826a1e95826f SHA-1: 8925aef39c460b24e4f69f5d14d72e2ecb4292e2 SHA-256: 8059be476a1f30be7e5bb5abba1a6d60de804ed0adec20ba79b921c2aeefafea

102 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment

This PDF document was flagged as malicious by an ML classifier. It uses a callback-phone (TOAD) lure. The file routes users through malicious redirector infrastructure and presents a deceptive download button. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

Nyx PDF Classifier malicious score 0.9900

Heuristics 5

PDF links to a 'free generator / game hack' redirector high 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.
Callback phishing phone lure medium SE_CALLBACK_LURE

Document asks the user to call a phone number in billing, refund, subscription, fraud, or security context — consistent with callback phishing or tech-support scam patterns. Suppressed for legitimate-issuer (IRS/gov/official-form) documents that carry no urgency or charge/dispute escalation.
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.tw/app/479516143/free-games-like-minecraft-game-hack PDF link annotation
- http://www.callong.cn/uploaded_files/userfiles/files/how-to-get-free-likes-on-tiktok_GM835599320.pdfIn PDF document text
- http://www.callong.cn/uploaded_files/userfiles/files/how-to-get-minecraft-realms-for-free_GM479516143.pdfIn PDF document text
- http://www.callong.cn/uploaded_files/userfiles/files/minecraft-free-app_GM479516143.pdfIn PDF document text
- http://www.callong.cn/uploaded_files/userfiles/files/minecraft-for-chromebook-free_GM479516143.pdfIn PDF document text
- http://www.callong.cn/uploaded_files/userfiles/files/how-to-hack-someones-account-on-roblox_GM431946152.pdfIn PDF document text
- http://www.callong.cn/uploaded_files/userfiles/files/how-to-get-verified-on-tiktok-for-free-2021_GM835599320.pdfIn PDF document text
- http://www.callong.cn/uploaded_files/userfiles/files/free-robux-link_GM431946152.pdfIn PDF document text
- http://www.callong.cn/uploaded_files/userfiles/files/minecraft-on-computer-free_GM479516143.pdfIn PDF document text
- http://www.callong.cn/uploaded_files/userfiles/files/how-to-get-free-skins-in-minecraft_GM479516143.pdfIn PDF document text
- http://www.callong.cn/uploaded_files/userfiles/files/free-minecraft-java-edition_GM479516143.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_off00002d45.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x2D45	22712 bytes
SHA-256: `783758aa19cbecd72de4e218367bdc3aa87eb5b96de42ef1d07c8c76cb3d6563`
`font_01_sfnt_off00005ff3.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x5FF3	17996 bytes
SHA-256: `6316af01e653c53aa8313e9ee065e63d320a9dd1c98e4ac08eccbec55cd1c79a`

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