PDF malware analysis — malicious · f34fdf9c2130b963

MALICIOUS

PDF

34.5 KB Created: 2021-06-25 13:40:58 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29

MD5: 5481ac6adeba80e72d6b77ee0698dba9 SHA-1: 1a3be3995ba232954e641c964d734a781564e269 SHA-256: f34fdf9c2130b963cce39b359f51c1bbc717346b134a148e9f0cdfc970b7cffa

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 0.9980

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 http://netcdn.co/app/406889139/game-hack-coin-master-game-hack PDF link annotation
- http://www.duchem.ae/uploaded_files/userfiles/files/coin-master-daily-free-spins-hack_GM406889139.pdfIn PDF document text
- http://www.duchem.ae/uploaded_files/userfiles/files/minecraft-free-online-unblocked_GM479516143.pdfIn PDF document text
- http://www.duchem.ae/uploaded_files/userfiles/files/how-to-download-minecraft-java-edition-for-free_GM479516143.pdfIn PDF document text
- http://www.duchem.ae/uploaded_files/userfiles/files/free-minecraft-skins-pc_GM479516143.pdfIn PDF document text
- http://www.duchem.ae/uploaded_files/userfiles/files/coin-master-free-cards-link-2021_GM406889139.pdfIn PDF document text
- http://www.duchem.ae/uploaded_files/userfiles/files/coin-master-free-spins-and-coins-today-gift-reward_GM406889139.pdfIn PDF document text
- http://www.duchem.ae/uploaded_files/userfiles/files/free-roblox-accounts-with-builders-club-2021_GM431946152.pdfIn PDF document text
- http://www.duchem.ae/uploaded_files/userfiles/files/free-ninja-animation-roblox-robuxian_GM431946152.pdfIn PDF document text
- http://www.duchem.ae/uploaded_files/userfiles/files/hack-codes-for-roblox-jailbreak_GM431946152.pdfIn PDF document text
- http://www.duchem.ae/uploaded_files/userfiles/files/coin-master-free-spins-link-download-for-iphone_GM406889139.pdfIn PDF document text
- http://www.duchem.ae/uploaded_files/userfiles/files/op-rewards-roblox-hack_GM431946152.pdfIn PDF document text
- http://www.duchem.ae/uploaded_files/userfiles/files/how-to-get-free-robux-no-survey_GM431946152.pdfIn PDF document text
- http://www.duchem.ae/uploaded_files/userfiles/files/roblox-robux-genorater-hack-byhttp-robloxrobuxgamehackco_GM431946152.pdfIn PDF document text
- http://www.duchem.ae/uploaded_files/userfiles/files/coin-master-hack-spins-apk_GM406889139.pdfIn PDF document text
- http://www.duchem.ae/uploaded_files/userfiles/files/free-robux-no-scam_GM431946152.pdfIn PDF document text
- http://www.duchem.ae/uploaded_files/userfiles/files/make-free-robux_GM431946152.pdfIn PDF document text
- http://www.duchem.ae/uploaded_files/userfiles/files/minecraft-free-download-android_GM479516143.pdfIn PDF document text
- http://www.duchem.ae/uploaded_files/userfiles/files/coin-master-hack-app-ios_GM406889139.pdfIn PDF document text
- http://www.duchem.ae/uploaded_files/userfiles/files/minecraft-free_GM479516143.pdfIn PDF document text
- http://www.duchem.ae/uploaded_files/userfiles/files/coin-master-hack-xyz_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_002_off0000308a.bin`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x308A	23004 bytes
SHA-256: `ff849f26ef5aba51cfb017165700f102a2bd947610e5a1a53e0ecfb772b18ee3`
`font_01_sfnt_off0000644c.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x644C	18264 bytes
SHA-256: `9efe2486ae0edfd787cd5e200ecf5a6ad4e76f48b1d9c09a1a4b5b4442c2c8b2`

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