PDF malware analysis — malicious · b99034a892aaf065

MALICIOUS

PDF

44.6 KB Created: 2021-05-19 06:14:25 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-25

MD5: 7136149b3a637ae3852f17dc771d1c0a SHA-1: 22160835d7fe7c38d5cebabb15d635ee613a1b37 SHA-256: b99034a892aaf065003cf72e3e88f2169ae7bbfa472702bcbd12152f1cb4e6ba

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 0.9632

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/835599320/tiktok-free-no-download-game-hack PDF link annotation
- http://www.homesweethome.pl/images/free-roblox-items-codes_GM431946152.pdfIn PDF document text
- http://www.homesweethome.pl/images/minecraft-apk-download-v1-144-2-free_GM479516143.pdfIn PDF document text
- http://www.homesweethome.pl/images/code-free-robux_GM431946152.pdfIn PDF document text
- http://www.homesweethome.pl/images/coin-master-free-spins-link-blogspot-today_GM406889139.pdfIn PDF document text
- http://www.homesweethome.pl/images/free-robux-generator-no-human-verification-2021_GM431946152.pdfIn PDF document text
- http://www.homesweethome.pl/images/free-2021-robux_GM431946152.pdfIn PDF document text
- http://www.homesweethome.pl/images/coin-master-offline-hack_GM406889139.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/free-daily-spins-and-coins-for-coin-master_GM406889139.pdfIn PDF document text
- http://www.homesweethome.pl/images/coin-master-attack-madness-hack_GM406889139.pdfIn PDF document text
- http://www.homesweethome.pl/images/body-roblox_GM431946152.pdfIn PDF document text
- http://www.homesweethome.pl/images/free-robux-scams_GM431946152.pdfIn PDF document text
- http://www.homesweethome.pl/images/free-spin-link-in-coin-master_GM406889139.pdfIn PDF document text
- http://www.homesweethome.pl/images/coin-master-apk_GM406889139.pdfIn PDF document text
- http://www.homesweethome.pl/images/how-do-you-get-free-robux-on-roblox_GM431946152.pdfIn PDF document text
- http://www.homesweethome.pl/images/coin-master-daily-free-spins-2021_GM406889139.pdfIn PDF document text
- http://www.homesweethome.pl/images/how-to-get-robux-for-free-2021_GM431946152.pdfIn PDF document text
- http://www.homesweethome.pl/images/free-roblox-characters_GM431946152.pdfIn PDF document text
- http://www.homesweethome.pl/images/free-outfits-roblox_GM431946152.pdfIn PDF document text
- http://www.homesweethome.pl/images/minecraft-java-free-account_GM479516143.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_off000048de.bin`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x48DE	24628 bytes
SHA-256: `f666f6f8b5f06127696c66b0b606b50201a3c23d7b321663c4ed1911fd2e5886`
`font_01_sfnt_off000081bb.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x81BB	2880 bytes
SHA-256: `10d025f04f706eb71cdda4f99784df1b9ccb52e48080e43095e0398eaef6f132`
`font_02_sfnt_off00008ba5.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x8BA5	18264 bytes
SHA-256: `078297333c97e9f532ece3b861be133415762e6c9246f8706154ee8ef1529089`

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