PDF malware analysis — malicious · 7b9a841f0cdfde30

MALICIOUS

PDF

46.9 KB Created: 2021-05-14 11:03:09 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-04

MD5: 7fb7e52bbcc38925e6c355728bfc18a7 SHA-1: 897474f2283e26187d94def5b5efdeb140de8c26 SHA-256: 7b9a841f0cdfde3043d188681ba6681e445f7a7850f3ea1c05d587439059cfd1

82 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment

This PDF document was flagged as malicious by an ML classifier. The file routes users through malicious redirector infrastructure and presents a deceptive download button. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

Nyx PDF Classifier malicious score 0.8948

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/431946152/free-robux-scams-game-hack PDF link annotation
- http://www.homesweethome.pl/images/free-robux-offers_GM431946152.pdfIn PDF document text
- http://www.homesweethome.pl/images/coin-master-offline-hack_GM406889139.pdfIn PDF document text
- http://www.homesweethome.pl/images/roblox-free-robux-com_GM431946152.pdfIn PDF document text
- http://www.homesweethome.pl/images/how-to-get-minecraft-for-free-on-ps4-2021_GM479516143.pdfIn PDF document text
- http://www.homesweethome.pl/images/get-robux_GM431946152.pdfIn PDF document text
- http://www.homesweethome.pl/images/how-to-use-scripts-in-roblox-hack_GM431946152.pdfIn PDF document text
- http://www.homesweethome.pl/images/coin-master-apk-hack-3527_GM406889139.pdfIn PDF document text
- http://www.homesweethome.pl/images/coin-master-free-spins-and-coins-today-gift-reward_GM406889139.pdfIn PDF document text
- http://www.homesweethome.pl/images/free-robux-come_GM431946152.pdfIn PDF document text
- http://www.homesweethome.pl/images/free-robux-no-survey_GM431946152.pdfIn PDF document text
- http://www.homesweethome.pl/images/free-robux-generator-2021_GM431946152.pdfIn PDF document text
- http://www.homesweethome.pl/images/codes-how-to-get-free-robux_GM431946152.pdfIn PDF document text
- http://www.homesweethome.pl/images/minecraft-free-download-mac-full-version_GM479516143.pdfIn PDF document text
- http://www.homesweethome.pl/images/20210-free-spin-links-for-coin-master_GM406889139.pdfIn PDF document text
- http://www.homesweethome.pl/images/roblox-group-free-robux_GM431946152.pdfIn PDF document text
- http://www.homesweethome.pl/images/minecraft-rtx-download-free_GM479516143.pdfIn PDF document text
- http://www.homesweethome.pl/images/mcpe-download_GM479516143.pdfIn PDF document text
- http://www.homesweethome.pl/images/coin-master-free-soins_GM406889139.pdfIn PDF document text
- http://www.homesweethome.pl/images/coin-master-fan-page-free-spins_GM406889139.pdfIn PDF document text
- http://www.homesweethome.pl/images/free-robux-only-username_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_off00004a22.bin`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x4A22	26844 bytes
SHA-256: `64d6b9932e68eb05a40729b92f99e4f79e03394fd8811774f803f04158202d40`
`font_01_sfnt_off00008792.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x8792	3884 bytes
SHA-256: `40b61f8938bd710dc29dc58ba3fde91c245a6a69596ec569b4d27c769ca417cf`
`font_02_sfnt_off00009439.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x9439	18500 bytes
SHA-256: `f6eebadb3de4af7ab0205057cc55fc1daf9397692da1370c2a19d2d749ad11f1`

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