PDF malware analysis — malicious · b2bbc314a93e2fab

MALICIOUS

PDF

35.4 KB Created: 2021-07-09 10:27:26 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29

MD5: 8e455f0339ff4b425fe7b184ff7ca40b SHA-1: 999e0965158e3f409fd8223f0385d89d6f8b239f SHA-256: b2bbc314a93e2fabb914d3673982051969c70fde1c8489636bbc7c589068064b

82 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The PDF document contains multiple embedded URLs, including one that directly links to a 'coin-master-free-spin-app-iphone-game-hack'. This heuristic, combined with the ML classifier's high confidence, indicates a lure designed to trick users into visiting a potentially malicious site. No scripts were extracted from this sample, but the presence of game hack lures and numerous related URLs suggests a phishing or malware distribution campaign.

Machine Learning

Nyx PDF Classifier malicious score 0.9980

Heuristics 4

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.
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/406889139/coin-master-free-spin-app-iphone-game-hack PDF link annotation
- https://www.tiancom.com.tw/upload/files/free-spin-app-for-coin-master_GM406889139.pdfIn PDF document text
- https://www.tiancom.com.tw/upload/files/moonactive-free-spins-2021_GM406889139.pdfIn PDF document text
- https://www.tiancom.com.tw/upload/files/pokemon-go-free-or-james_GM1094591345.pdfIn PDF document text
- https://www.tiancom.com.tw/upload/files/free-solobird-guitar-roblox_GM431946152.pdfIn PDF document text
- https://www.tiancom.com.tw/upload/files/hackear-coin-master_GM406889139.pdfIn PDF document text
- https://www.tiancom.com.tw/upload/files/free-robux-giveaway-live-right-now_GM431946152.pdfIn PDF document text
- https://www.tiancom.com.tw/upload/files/roblox-free-item-codes_GM431946152.pdfIn PDF document text
- https://www.tiancom.com.tw/upload/files/hack-para-apocalypse-rising-roblox-2021_GM431946152.pdfIn PDF document text
- https://www.tiancom.com.tw/upload/files/hacked-accounts-in-roblox_GM431946152.pdfIn PDF document text
- https://www.tiancom.com.tw/upload/files/eliot-ring-mig-roblox-jailbreak-hack_GM431946152.pdfIn PDF document text
- https://www.tiancom.com.tw/upload/files/como-hackear-cuentas-de-roblox-android_GM431946152.pdfIn PDF document text
- https://www.tiancom.com.tw/upload/files/how-to-hack-roblox-accounts-for-robux_GM431946152.pdfIn PDF document text
- https://www.tiancom.com.tw/upload/files/can-i-play-roblox-for-free_GM431946152.pdfIn PDF document text
- https://www.tiancom.com.tw/upload/files/roblox-hack-exploit-jailbreak_GM431946152.pdfIn PDF document text
- https://www.tiancom.com.tw/upload/files/how-to-get-free-clothes-for-roblox_GM431946152.pdfIn PDF document text
- https://www.tiancom.com.tw/upload/files/nate-roblox-hack_GM431946152.pdfIn PDF document text
- https://www.tiancom.com.tw/upload/files/hacks-for-roblox-royale-high_GM431946152.pdfIn PDF document text
- https://www.tiancom.com.tw/upload/files/free-robux-no-pass-requiredfor-pc_GM431946152.pdfIn PDF document text
- https://www.tiancom.com.tw/upload/files/robux-secret-forum-hack-v11_GM431946152.pdfIn PDF document text
- https://www.tiancom.com.tw/upload/files/roblox-cheat_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_002_off0000356d.bin`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x356D	22700 bytes
SHA-256: `af3c2afa408d1ed00e2ad6a65876d32a3c0e95f3bd9288c0654f2eda39f8bf81`
`font_01_sfnt_off000067df.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x67DF	18340 bytes
SHA-256: `22ec7c2df2d9c103e59d81394999ffb41531b6d4357b2311b3951123c8e62034`

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