PDF malware analysis — malicious · d3f59261a9a92c32

MALICIOUS

PDF

46.3 KB Created: 2021-05-11 22:41:26 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-24

MD5: 29b539fb8e30d0315ab5f0a11fd1149f SHA-1: 467820e869e4c98e2e326bf74f209e34b073b650 SHA-256: d3f59261a9a92c32d59c2a0ff175631e62560bdbf1c011f022ee8022da010e06

180 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment

The PDF document contains multiple links to redirector infrastructure, specifically advertising "game hacks" and "free generators" for popular games. The primary link, https://netcdn.xyz/app/479516143/minecraft-windows-10-mod-menu-game-hack, is flagged as a malicious redirector. While no scripts were explicitly extracted, the PDF structure and embedded links strongly suggest a phishing or social engineering lure designed to lead users to potentially malicious sites. The presence of a "download button" heuristic further supports this, indicating a deceptive call to action.

Machine Learning

Nyx PDF Classifier malicious score 0.8696

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.xyz/app/479516143/minecraft-windows-10-mod-menu-game-hack In PDF document text
- http://www.callong.cn/uploaded_files/userfiles/files/how-to-get-free-golden-card-in-coin-master_GM406889139.pdfIn PDF document text
- http://www.callong.cn/uploaded_files/userfiles/files/coin-master-hack-spins-apk-download_GM406889139.pdfIn PDF document text
- http://www.callong.cn/uploaded_files/userfiles/files/coin-master-hack-apk-android_GM406889139.pdfIn PDF document text
- http://www.callong.cn/uploaded_files/userfiles/files/free-robux-generator-2021_GM431946152.pdfIn PDF document text
- http://www.callong.cn/uploaded_files/userfiles/files/how-to-hack-roblox-accounts-for-robux_GM431946152.pdfIn PDF document text
- http://www.callong.cn/uploaded_files/userfiles/files/free-robux-gen_GM431946152.pdfIn PDF document text
- http://www.callong.cn/uploaded_files/userfiles/files/free-robux-websites-2021_GM431946152.pdfIn PDF document text
- http://www.callong.cn/uploaded_files/userfiles/files/freerobux-co_GM431946152.pdfIn PDF document text
- http://www.callong.cn/uploaded_files/userfiles/files/coin-master-hack-2021_GM406889139.pdfIn PDF document text
- http://www.callong.cn/uploaded_files/userfiles/files/free-coins-coin-master-daily_GM406889139.pdfIn PDF document text
- http://www.callong.cn/uploaded_files/userfiles/files/how-to-get-free-robux-in-2021_GM431946152.pdfIn PDF document text
- http://www.callong.cn/uploaded_files/userfiles/files/free-limiteds-roblox_GM431946152.pdfIn PDF document text
- http://www.callong.cn/uploaded_files/userfiles/files/free-robux-exe_GM431946152.pdfIn PDF document text
- http://www.callong.cn/uploaded_files/userfiles/files/moonactive-coin-master-free-spins-link_GM406889139.pdfIn PDF document text
- http://www.callong.cn/uploaded_files/userfiles/files/can-i-get-robux-for-free_GM431946152.pdfIn PDF document text
- http://www.callong.cn/uploaded_files/userfiles/files/coin-master-com_GM406889139.pdfIn PDF document text
- http://www.callong.cn/uploaded_files/userfiles/files/free-spins-link-in-coin-master-2021_GM406889139.pdfIn PDF document text
- http://www.callong.cn/uploaded_files/userfiles/files/free-coin-master-spins-without-human-verification_GM406889139.pdfIn PDF document text
- http://www.callong.cn/uploaded_files/userfiles/files/roblox-generator-com_GM431946152.pdfIn PDF document text
- http://www.callong.cn/uploaded_files/userfiles/files/freerobuxhack-us-2021_GM431946152.pdfIn PDF document text
- http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`stream_003_off00004eae.bin`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x4EAE	25208 bytes
SHA-256: `5675d51e808ca68ea16b32b5a5bd79db404079d42e5c46c54e9ace61d31e4274`
`font_01_sfnt_off0000874b.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x874B	2928 bytes
SHA-256: `46469c97ca4b2772bd5f8108fcf78f28304e46404576c50a513cb99bf1898b8e`
`font_02_sfnt_off0000915c.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x915C	18664 bytes
SHA-256: `d514bf315b41fa54fe0c50a97b4da26b79196549822ea3c6d635b98116ec41ec`

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