PDF malware analysis — malicious · 6101b4a877ef4e25

MALICIOUS

PDF

44.6 KB Created: 2021-06-03 09:21:54 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-16

MD5: 818ed0a677fe75e725569f196277af62 SHA-1: 1e0524628501186bfa521ed7526e7d244773c3f1 SHA-256: 6101b4a877ef4e251de6fe9ab618801a446bea1789c2b67c4f986f218a45a5ee

180 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

The PDF contains a critical heuristic firing for a game hack redirector lure, pointing to a known malicious URL. The document body, though partially corrupted, contains references to game hacks and includes the malicious URL. The presence of multiple embedded URLs and the ML classifier's high confidence score further support the malicious nature of this document, likely intended to trick users into visiting a compromised site.

Machine Learning

Nyx PDF Classifier malicious score 0.9865

Heuristics 5

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.
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
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.online/app/479516143/minecraft-hacks-wurst-game-hack In PDF document text
- http://www.atlanticexportsltd.com/uploaded_files/userfiles/files/fan-page-coin-master_GM406889139.pdfIn PDF document text
- http://www.atlanticexportsltd.com/uploaded_files/userfiles/files/free-coins-and-spins-for-coin-master_GM406889139.pdfIn PDF document text
- http://atlanticexportsltd.com/uploaded_files/userfiles/files/google-moon-active_GM406889139.pdfIn PDF document text
- http://www.atlanticexportsltd.com/uploaded_files/userfiles/files/free-spin-link-in-coin-master_GM406889139.pdfIn PDF document text
- http://www.atlanticexportsltd.com/uploaded_files/userfiles/files/coin-master-free-spins-only_GM406889139.pdfIn PDF document text
- http://www.atlanticexportsltd.com/uploaded_files/userfiles/files/coin-master-hack-app-2021_GM406889139.pdfIn PDF document text
- http://atlanticexportsltd.com/uploaded_files/userfiles/files/roblox-studio-free-robux_GM431946152.pdfIn PDF document text
- http://www.atlanticexportsltd.com/uploaded_files/userfiles/files/free-coins-coin-master-2021_GM406889139.pdfIn PDF document text
- http://www.atlanticexportsltd.com/uploaded_files/userfiles/files/cheats-to-get-free-spins-on-coin-master_GM406889139.pdfIn PDF document text
- http://atlanticexportsltd.com/uploaded_files/userfiles/files/free-robux-codes-generator-no-verification_GM431946152.pdfIn PDF document text
- http://atlanticexportsltd.com/uploaded_files/userfiles/files/minecraft-gun-mod-download-free_GM479516143.pdfIn PDF document text
- http://atlanticexportsltd.com/uploaded_files/userfiles/files/free-robux-with-no-survey_GM431946152.pdfIn PDF document text
- http://atlanticexportsltd.com/uploaded_files/userfiles/files/free-roblox-accounts-that-work_GM431946152.pdfIn PDF document text
- http://www.atlanticexportsltd.com/uploaded_files/userfiles/files/coin-master-free-spins-for-iphone_GM406889139.pdfIn PDF document text
- http://www.atlanticexportsltd.com/uploaded_files/userfiles/files/coin-master-online-hack-2021_GM406889139.pdfIn PDF document text
- http://atlanticexportsltd.com/uploaded_files/userfiles/files/how-to-hack-in-roblox-prison-life_GM431946152.pdfIn PDF document text
- http://www.atlanticexportsltd.com/uploaded_files/userfiles/files/coin-master-hacker-club_GM406889139.pdfIn PDF document text
- http://atlanticexportsltd.com/uploaded_files/userfiles/files/master-coin-hack_GM406889139.pdfIn PDF document text
- http://www.atlanticexportsltd.com/uploaded_files/userfiles/files/how-to-hack-roblox-to-get-robux_GM431946152.pdfIn PDF document text
- http://atlanticexportsltd.com/uploaded_files/userfiles/files/coin-master-free-spins-promo-code_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_004_off0000552c.bin`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x552C	24492 bytes
SHA-256: `699b0e77ea0eddbd24dd13d50a3176f6c726bb2e71f0b42dec8bd169e5969cef`
`font_01_sfnt_off00008c7c.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x8C7C	18076 bytes
SHA-256: `3e7497e6bc4bf84e5186ee2c608eda5b15e7e8e7c6854cdd6eb66a0ec10d8832`

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