PDF malware analysis — malicious · bac0094d5adf29d9

MALICIOUS

PDF

34.9 KB Created: 2021-07-09 03:02:05 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-25

MD5: 3fa0a4409bd28effb41b91400de52e81 SHA-1: de7766fd1c3eeb99fb07f31f72d764973a2b9591 SHA-256: bac0094d5adf29d951f6785823144adb100f50f28f74a7f4e7852d072e28a640

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.tw/app/479516143/minecraft-xbox-free-game-hack PDF link annotation
- https://www.alldaymedicines.com/uploaded_files/userfiles/files/roblox-hack-diamond_GM431946152.pdfIn PDF document text
- https://www.alldaymedicines.com/uploaded_files/userfiles/files/roblox-20219-robux-free_GM431946152.pdfIn PDF document text
- https://www.alldaymedicines.com/uploaded_files/userfiles/files/can-pokemon-go-free-promo-codes_GM1094591345.pdfIn PDF document text
- https://www.alldaymedicines.com/uploaded_files/userfiles/files/free-coins-for-coin-master_GM406889139.pdfIn PDF document text
- https://www.alldaymedicines.com/uploaded_files/userfiles/files/free-robux-scams-how-to-stop-them_GM431946152.pdfIn PDF document text
- https://www.alldaymedicines.com/uploaded_files/userfiles/files/robux-hack-no-human-verification_GM431946152.pdfIn PDF document text
- https://www.alldaymedicines.com/uploaded_files/userfiles/files/free-coin-master-hacks_GM406889139.pdfIn PDF document text
- https://www.alldaymedicines.com/uploaded_files/userfiles/files/coin-master-free-spins-cash_GM406889139.pdfIn PDF document text
- https://www.alldaymedicines.com/uploaded_files/userfiles/files/real-coin-master-hacks_GM406889139.pdfIn PDF document text
- https://www.alldaymedicines.com/uploaded_files/userfiles/files/free-spins-on-coin-master_GM406889139.pdfIn PDF document text
- https://www.alldaymedicines.com/uploaded_files/userfiles/files/coin-master-hack-https-coinms-net_GM406889139.pdfIn PDF document text
- https://www.alldaymedicines.com/uploaded_files/userfiles/files/descargar-hack-deathrun-roblox_GM431946152.pdfIn PDF document text
- https://www.alldaymedicines.com/uploaded_files/userfiles/files/hacks-for-coin-master-game_GM406889139.pdfIn PDF document text
- https://www.alldaymedicines.com/uploaded_files/userfiles/files/free-roblox-hack-us_GM431946152.pdfIn PDF document text
- https://www.alldaymedicines.com/uploaded_files/userfiles/files/robux-free-tips-download_GM431946152.pdfIn PDF document text
- https://www.alldaymedicines.com/uploaded_files/userfiles/files/minecraft-java-free-account_GM479516143.pdfIn PDF document text
- https://www.alldaymedicines.com/uploaded_files/userfiles/files/free-robux-no-download-no-survey-2021_GM431946152.pdfIn PDF document text
- https://www.alldaymedicines.com/uploaded_files/userfiles/files/scary-larry-roblox_GM431946152.pdfIn PDF document text
- https://www.alldaymedicines.com/uploaded_files/userfiles/files/roblox-jailbreak-hack-application-free_GM431946152.pdfIn PDF document text
- https://www.alldaymedicines.com/uploaded_files/userfiles/files/how-to-hack-the-roblox-website_GM431946152.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
`font_00_sfnt_off000032db.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x32DB	22436 bytes
SHA-256: `e3c6a8638845bd56c1be01f20e1ef04134de03c5f0209d6e2e2bce83648e0de8`
`font_01_sfnt_off000064e5.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x64E5	18596 bytes
SHA-256: `64c875ec2844abc9858bbbddd454d2ee78eccd1ad7df2e0a24e9a2b45bb85e11`

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