PDF malware analysis — malicious · 700c16e75d293c87

MALICIOUS

PDF

57.1 KB Created: 2021-05-11 09:08:27 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-27

MD5: 06742ebc21e25ec43be757527f45a888 SHA-1: 3e854f0e035b56cc05702965965f893e446b0094 SHA-256: 700c16e75d293c8795215ae8ee155abeaa8cd9ea876bbbd7f97e8e6b50c041ea

160 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment

The PDF document contains multiple links to malicious redirectors, specifically advertising 'free generator / game hack' lures for popular games like Coin Master and Roblox. The primary redirector URL is 'https://netcdn.xyz/app/406889139/coin-master-heaven-free-spins-link-2021-today-game-hack'. While no scripts were explicitly extracted, the presence of numerous embedded URLs and the heuristic firings indicate a phishing or scam campaign designed to lead users to potentially malicious content or download further payloads.

Machine Learning

Nyx PDF Classifier malicious score 0.8254

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 https://netcdn.xyz/app/406889139/coin-master-heaven-free-spins-link-2021-today-game-hack In PDF document text
- http://sellitafrica.com/media/storage/editor/files/ear-free-spins-for-coin-master_GM406889139.pdfIn PDF document text
- http://sellitafrica.com/media/storage/editor/files/free-minecraft-alt-generator_GM479516143.pdfIn PDF document text
- http://sellitafrica.com/media/storage/editor/files/coin-master-daily-free-spins-link-2021_GM406889139.pdfIn PDF document text
- http://sellitafrica.com/media/storage/editor/files/moonactive-free-spins-2021_GM406889139.pdfIn PDF document text
- http://sellitafrica.com/media/storage/editor/files/heroes-online-roblox_GM431946152.pdfIn PDF document text
- http://sellitafrica.com/media/storage/editor/files/earn-robux-today-earn-robux-today_GM431946152.pdfIn PDF document text
- http://sellitafrica.com/media/storage/editor/files/free-script-executor-roblox_GM431946152.pdfIn PDF document text
- http://sellitafrica.com/media/storage/editor/files/rbl-gg-free-robux_GM431946152.pdfIn PDF document text
- http://sellitafrica.com/media/storage/editor/files/rbxoffer-com-free-robux_GM431946152.pdfIn PDF document text
- http://sellitafrica.com/media/storage/editor/files/how-to-get-minecraft-for-free-on-pc_GM479516143.pdfIn PDF document text
- http://sellitafrica.com/media/storage/editor/files/how-to-get-free-spins-on-coin-master-blogspot_GM406889139.pdfIn PDF document text
- http://sellitafrica.com/media/storage/editor/files/free-robux-codes-2021-not-used_GM431946152.pdfIn PDF document text
- http://sellitafrica.com/media/storage/editor/files/free-coins-coin-master-today_GM406889139.pdfIn PDF document text
- http://sellitafrica.com/media/storage/editor/files/minecraft-ps4-free_GM479516143.pdfIn PDF document text
- http://sellitafrica.com/media/storage/editor/files/coin-master-free-spins-and-coins-today_GM406889139.pdfIn PDF document text
- http://sellitafrica.com/media/storage/editor/files/coin-master-tiradas-gratis-2021_GM406889139.pdfIn PDF document text
- http://sellitafrica.com/media/storage/editor/files/minecraft-pe-015-0-apk-free-download_GM479516143.pdfIn PDF document text
- http://sellitafrica.com/media/storage/editor/files/online-coin-master-hack-here_GM406889139.pdfIn PDF document text
- http://sellitafrica.com/media/storage/editor/files/minecraft-hacks-xbox-one_GM479516143.pdfIn PDF document text
- http://sellitafrica.com/media/storage/editor/files/appsmob-coin-master-hack_GM406889139.pdfIn PDF document text
- http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 5

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`stream_003_off00004eb0.bin`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x4EB0	27544 bytes
SHA-256: `9524003e41773c0186fd5933b503ff34b50ee6ad1d977a65ec841be9780423bf`
`font_01_sfnt_off00008e42.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x8E42	3152 bytes
SHA-256: `d8bc7cd69a69a1851b9d97904f75bbed90a34b65b74f944d896bc28551c46133`
`font_02_sfnt_off0000994f.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x994F	7960 bytes
SHA-256: `cf7ae5cf6bef3222f5a26bec705b492fed0278aec6b16ec101aeda46e0edd2b2`
`font_03_sfnt_off0000ac75.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xAC75	18928 bytes
SHA-256: `6c02eefe1d6ccefe48eb04d1ff5bd485ce1aa9bd94615c823ea62003c3b46c2b`
`font_04_sfnt_off0000d08d.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xD08D	4272 bytes
SHA-256: `fac9a06ceb5574feb8580c075df3ef69dfbd0efa4947186cfe90f11b68eaafb0`

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