PDF malware analysis — malicious · 78db863222dc45ac

MALICIOUS

PDF

34.7 KB Created: 2021-06-27 02:57:20 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-15

MD5: 13b0e3106e869e07289616e8570688b8 SHA-1: 5942a947fdaeb17cc7ba154b2b44867634d0cbe5 SHA-256: 78db863222dc45aca717261f4b08c8df64c4891d26591a0dcf0d9f559c90d53d

62 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment

The document presents itself as a lure for game hacks, specifically mentioning Roblox and Coin Master, and contains an external URI pointing to a suspicious download location. The ML classifier strongly flagged this PDF as malicious, and the presence of embedded URLs suggests an attempt to redirect users to malicious content or download further payloads. While no scripts were explicitly extracted, the overall structure and heuristics indicate a phishing or malware distribution attempt.

Machine Learning

Nyx PDF Classifier malicious score 0.9980

Heuristics 4

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.co/app/431946152/survivor-hack-scrip-t-roblox-game-hack PDF link annotation
- https://www.tiancom.com.tw/upload/files/coin-master-hack-version-download-ios_GM406889139.pdfIn PDF document text
- https://www.tiancom.com.tw/upload/files/hack-robux-thegatogaming_GM431946152.pdfIn PDF document text
- https://www.tiancom.com.tw/upload/files/coin-master-hack-pc-free_GM406889139.pdfIn PDF document text
- https://www.tiancom.com.tw/upload/files/coin-master-el-tiger-card-free_GM406889139.pdfIn PDF document text
- https://www.tiancom.com.tw/upload/files/coin-master-daily-free-spins-and-coins_GM406889139.pdfIn PDF document text
- https://www.tiancom.com.tw/upload/files/whats-robux_GM431946152.pdfIn PDF document text
- https://www.tiancom.com.tw/upload/files/coin-master-daily-free-cards_GM406889139.pdfIn PDF document text
- https://www.tiancom.com.tw/upload/files/games-on-roblox-that-give-you-free-robux_GM431946152.pdfIn PDF document text
- https://www.tiancom.com.tw/upload/files/free-stuff-on-roblox-catalog-2021_GM431946152.pdfIn PDF document text
- https://www.tiancom.com.tw/upload/files/get-free-robux-com_GM431946152.pdfIn PDF document text
- https://www.tiancom.com.tw/upload/files/hacker-destroza-la-ciudad-roblox-pokemon-gomiannn_GM431946152.pdfIn PDF document text
- https://www.tiancom.com.tw/upload/files/best-free-spins-link-coin-master_GM406889139.pdfIn PDF document text
- https://www.tiancom.com.tw/upload/files/free-summer-grl-free-roblox-skins_GM431946152.pdfIn PDF document text
- https://www.tiancom.com.tw/upload/files/roblox-c9m_GM431946152.pdfIn PDF document text
- https://www.tiancom.com.tw/upload/files/roblox-get-coordinates-hack_GM431946152.pdfIn PDF document text
- https://www.tiancom.com.tw/upload/files/coin-master-support_GM406889139.pdfIn PDF document text
- https://www.tiancom.com.tw/upload/files/how-to-hack-into-someones-roblox-account_GM431946152.pdfIn PDF document text
- https://www.tiancom.com.tw/upload/files/how-to-play-roblox-on-phone-for-free_GM431946152.pdfIn PDF document text
- https://www.tiancom.com.tw/upload/files/roblox-arsenal-hacks-download_GM431946152.pdfIn PDF document text
- https://www.tiancom.com.tw/upload/files/free-minecraft-games-for-kids_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_off00002fb5.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x2FB5	22612 bytes
SHA-256: `4c1cc6a9f09b9c9a24d26419192a98be43b543d11e06c580bc5df3e917d2c655`
`font_01_sfnt_off000061e4.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x61E4	19208 bytes
SHA-256: `020e1b9034c78ac308cf0db4fe5b1f7946f4e47dc46dd24830d72bb4305f33a1`

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