PDF malware analysis — malicious · c2084d6cf5d4a96e

MALICIOUS

PDF

43.7 KB Created: 2021-05-19 15:53:48 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29

MD5: 427e8f0799ff1ac30da7e07fa910f769 SHA-1: 0b85e2f34b5f9dcbce5fc5baee042e49c4dfee08 SHA-256: c2084d6cf5d4a96e79d610110e09431a4e94947cff4240732aa07533d15e8f39

82 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment

The PDF contains multiple links to external websites that promise game hacks and free in-game currency, such as 'Pubg Uc Buy In Pakistan' and 'Roblox Hack'. These lures are designed to trick users into visiting potentially malicious sites. The ML classifier also strongly flagged this PDF as malicious, indicating a high probability of malicious intent.

Machine Learning

Nyx PDF Classifier malicious score 0.9969

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 https://netcdn.xyz/app/1330123889/pubg-uc-buy-in-pakistan-game-hack PDF link annotation
- http://schrichte.de/images/roblox-hack-2021_GM431946152.pdfIn PDF document text
- http://schrichte.de/images/free-premium-roblox_GM431946152.pdfIn PDF document text
- http://schrichte.de/images/all-free-items-in-roblox_GM431946152.pdfIn PDF document text
- http://schrichte.de/images/hey-google-how-do-you-get-free-robux_GM431946152.pdfIn PDF document text
- http://schrichte.de/images/roblox-hack-apk_GM431946152.pdfIn PDF document text
- http://schrichte.de/images/how-to-get-minecraft-for-free-on-tablet_GM479516143.pdfIn PDF document text
- http://schrichte.de/images/no-human-verification_GM431946152.pdfIn PDF document text
- http://schrichte.de/images/coin-master-free-gold_GM406889139.pdfIn PDF document text
- http://schrichte.de/images/robux-free-c_GM431946152.pdfIn PDF document text
- http://schrichte.de/images/free-robux-human-verification_GM431946152.pdfIn PDF document text
- http://schrichte.de/images/free-robux-discord-servers_GM431946152.pdfIn PDF document text
- http://schrichte.de/images/2021-free-spins-coin-master_GM406889139.pdfIn PDF document text
- http://schrichte.de/images/fbchampion_GM406889139.pdfIn PDF document text
- http://schrichte.de/images/robux-com-free-robux_GM431946152.pdfIn PDF document text
- http://schrichte.de/images/roblox-promo-codes-for-free-robux_GM431946152.pdfIn PDF document text
- http://schrichte.de/images/free-robux-hack-no-verification_GM431946152.pdfIn PDF document text
- http://schrichte.de/images/coin-master-34-6-hack_GM406889139.pdfIn PDF document text
- http://schrichte.de/images/free-spins_GM406889139.pdfIn PDF document text
- http://schrichte.de/images/coin-master-free-spins-hack-ios_GM406889139.pdfIn PDF document text
- http://schrichte.de/images/free-robux-hacker-us_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_003_off000043e4.bin`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x43E4	30264 bytes
SHA-256: `878483e8ec541a0a47cac4947d42df6b491a70167e9c42a2e53225637b2e25a4`
`font_01_sfnt_off00008708.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x8708	18700 bytes
SHA-256: `75b3730ee4a21f962573f0efcabc3b2f588b36f524eaf7bb7d9c80f665fc186e`

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