PDF malware analysis — malicious · 82f9fcf79eca84fc

MALICIOUS

PDF

34.8 KB Created: 2021-06-29 03:45:45 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-18

MD5: a0f653dd1f74f1240b044a9835c6e8a6 SHA-1: ab8146bfebefbdd9cd0490ec7791812a741b3f5e SHA-256: 82f9fcf79eca84fc9d954c99c3f9337aa1d9ef7cf349b5a9f9eba2ad01c018db

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/431946152/when-does-john-doe-hack-roblox-game-hack PDF link annotation
- https://www.liputanbali.com/assets/CKImages/files/coin-master-free-100-spin-link_GM406889139.pdfIn PDF document text
- https://www.liputanbali.com/assets/CKImages/files/free-robux-hack-prohosts-org_GM431946152.pdfIn PDF document text
- https://www.liputanbali.com/assets/CKImages/files/hack-download_GM431946152.pdfIn PDF document text
- https://www.liputanbali.com/assets/CKImages/files/minecraft-redeem-code-free-2021_GM479516143.pdfIn PDF document text
- https://www.liputanbali.com/assets/CKImages/files/free-robux-hack-2021_GM431946152.pdfIn PDF document text
- https://www.liputanbali.com/assets/CKImages/files/roblox-slaying-simulator-hack-script_GM431946152.pdfIn PDF document text
- https://www.liputanbali.com/assets/CKImages/files/make-free-robux_GM431946152.pdfIn PDF document text
- https://www.liputanbali.com/assets/CKImages/files/coin-master-gold-cards-hack-english_GM406889139.pdfIn PDF document text
- https://www.liputanbali.com/assets/CKImages/files/free-robux-generator-no-human-verification_GM431946152.pdfIn PDF document text
- https://www.liputanbali.com/assets/CKImages/files/coin-master-free-coins-link-march-2021_GM406889139.pdfIn PDF document text
- https://www.liputanbali.com/assets/CKImages/files/coin-master-hack-activegamer_GM406889139.pdfIn PDF document text
- https://www.liputanbali.com/assets/CKImages/files/how-to-change-roblox-username-for-free_GM431946152.pdfIn PDF document text
- https://www.liputanbali.com/assets/CKImages/files/free-robux-without-downloading-anything_GM431946152.pdfIn PDF document text
- https://www.liputanbali.com/assets/CKImages/files/roblox-fun-com-free-robux_GM431946152.pdfIn PDF document text
- https://www.liputanbali.com/assets/CKImages/files/bullet-club-shirt-roblox-free_GM431946152.pdfIn PDF document text
- https://www.liputanbali.com/assets/CKImages/files/how-to-play-roblox-for-free_GM431946152.pdfIn PDF document text
- https://www.liputanbali.com/assets/CKImages/files/free-stuff-on-roblox_GM431946152.pdfIn PDF document text
- https://www.liputanbali.com/assets/CKImages/files/free-followers-for-tiktok_GM835599320.pdfIn PDF document text
- https://www.liputanbali.com/assets/CKImages/files/coin-master-free-spins-11-01-2021_GM406889139.pdfIn PDF document text
- https://www.liputanbali.com/assets/CKImages/files/roblox36com-free-robux_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_off00003057.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x3057	22280 bytes
SHA-256: `3315c808a2310fab18da4c9e07b3a0a63e9342ae40b112463e41596c9ef70fe7`
`font_01_sfnt_off000061fd.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x61FD	19356 bytes
SHA-256: `ba5f6d17ec2646b60c4b3687bce9b4697cf1c6aa219024492ef84bcdf4c24ee6`

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