PDF malware analysis — malicious · c0abb378abac878e

MALICIOUS

PDF

34.5 KB Created: 2021-07-05 20:50:36 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-27

MD5: 073e302791606c117f59ee45b78b8de5 SHA-1: aed58df9b54534cbe1cade537a6840d95e4c4c68 SHA-256: c0abb378abac878eabd508bdcd29df2d155aca0ed248745d61e7b2ea7a1adc8a

160 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment

The PDF document contains multiple links that redirect to malicious infrastructure, masquerading as game hacks and generators. The primary lure appears to be related to 'Coin Master' and 'Roblox' cheats. The document body and embedded URLs strongly suggest a phishing or scam attempt designed to lead users to potentially harmful websites.

Machine Learning

Nyx PDF Classifier malicious score 0.9980

Heuristics 4

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.
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/406889139/coin-master-hacks-game-hack In PDF document text
- http://allcenterdistribuidora.com.br/files/roblox-getting-hacked_GM431946152.pdfIn PDF document text
- http://allcenterdistribuidora.com.br/files/code-speed-hack-roblox_GM431946152.pdfIn PDF document text
- http://allcenterdistribuidora.com.br/files/speed-hack-roblox-jailbreak-2021_GM431946152.pdfIn PDF document text
- http://allcenterdistribuidora.com.br/files/how-to-get-free-spins-on-coin-master-android_GM406889139.pdfIn PDF document text
- http://allcenterdistribuidora.com.br/files/free-100-robux-code-december-2021_GM431946152.pdfIn PDF document text
- http://allcenterdistribuidora.com.br/files/script-executor-hack-roblox_GM431946152.pdfIn PDF document text
- http://allcenterdistribuidora.com.br/files/hack-coin-master-mod-apk_GM406889139.pdfIn PDF document text
- http://allcenterdistribuidora.com.br/files/i-got-hacked-on-roblox_GM431946152.pdfIn PDF document text
- http://allcenterdistribuidora.com.br/files/free-robux-on-phone_GM431946152.pdfIn PDF document text
- http://allcenterdistribuidora.com.br/files/coin-master-daily-gift-free-spins-and-coins-link_GM406889139.pdfIn PDF document text
- http://allcenterdistribuidora.com.br/files/coin-master-free-spin-ml_GM406889139.pdfIn PDF document text
- http://allcenterdistribuidora.com.br/files/coinmaster-rewards_GM406889139.pdfIn PDF document text
- http://allcenterdistribuidora.com.br/files/real-free-robux-generator_GM431946152.pdfIn PDF document text
- http://allcenterdistribuidora.com.br/files/roblox-money-cheats-2021_GM431946152.pdfIn PDF document text
- http://allcenterdistribuidora.com.br/files/coin-master-hack-ios-12_GM406889139.pdfIn PDF document text
- http://allcenterdistribuidora.com.br/files/download-flying-hack-for-roblox_GM431946152.pdfIn PDF document text
- http://allcenterdistribuidora.com.br/files/minecraft-login-free_GM479516143.pdfIn PDF document text
- http://allcenterdistribuidora.com.br/files/coin-master-free-spins-and-coins-today-gift-reward_GM406889139.pdfIn PDF document text
- http://allcenterdistribuidora.com.br/files/free-30-tiktok-likes_GM835599320.pdfIn PDF document text
- http://allcenterdistribuidora.com.br/files/free-spin-and-daily-news-coin-master_GM406889139.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_off0000304f.bin`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x304F	23284 bytes
SHA-256: `47d41f75f0e45cde812754dec7cd102a5c6d3c5a29d00f2a96e7a3b9b1a5157e`
`font_01_sfnt_off000064e7.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x64E7	18004 bytes
SHA-256: `2f3a5855c5bac228d8d27cc7f61b57eebad79d58a924e470a0477843dff273c7`

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