PDF malware analysis — malicious · 10d240eefab30301

MALICIOUS

PDF

47.7 KB Created: 2021-06-03 06:33:37 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29

MD5: 3a315766bda1dbd075298d5bc47653c7 SHA-1: 3933ba1fdd86d4669d0dea11f50a7ccb4bf8a918 SHA-256: 10d240eefab30301dd90402f279a416af4edb507ecdc3764e889e36bfabab6a3

162 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1204.002 Malicious Link

This PDF file contains numerous links to external websites, many of which are related to game hacks and generators, indicating a potential scam or phishing attempt. The heuristic 'PDF_SEO_LINK_FARM' suggests a large number of such links were embedded. The ML classifier also flagged this PDF as malicious with high confidence.

Machine Learning

Nyx PDF Classifier malicious score 0.9769

Heuristics 6

Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM

Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
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.
Callback phishing phone lure medium SE_CALLBACK_LURE

Document asks the user to call a phone number in billing, refund, subscription, fraud, or security context — consistent with callback phishing or tech-support scam patterns. Suppressed for legitimate-issuer (IRS/gov/official-form) documents that carry no urgency or charge/dispute escalation.
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.online/app/431946152/how-to-get-free-robux-2021-game-hack PDF link annotation
- https://www.alamrayabali.com/assets/CKImages/files/all-coin-master-spin-link-and-free-download_GM406889139.pdfIn PDF document text
- https://www.alamrayabali.com/assets/CKImages/files/free-robux-without-doing-anything_GM431946152.pdfIn PDF document text
- https://www.alamrayabali.com/assets/CKImages/files/coin-master-free-spin-link-today-2021_GM406889139.pdfIn PDF document text
- https://www.alamrayabali.com/assets/CKImages/files/how-to-hack-roblox-accounts-on-phone_GM431946152.pdfIn PDF document text
- https://www.alamrayabali.com/assets/CKImages/files/cheat-codes-for-coin-master_GM406889139.pdfIn PDF document text
- https://www.alamrayabali.com/assets/CKImages/files/adopt-me-roblox-hacks_GM431946152.pdfIn PDF document text
- https://www.alamrayabali.com/assets/CKImages/files/minecraft-hack-app_GM479516143.pdfIn PDF document text
- https://www.alamrayabali.com/assets/CKImages/files/how-to-o-get-free-coin-master-spins_GM406889139.pdfIn PDF document text
- https://www.alamrayabali.com/assets/CKImages/files/coin-master-hack-game-download-mod-apk_GM406889139.pdfIn PDF document text
- https://www.alamrayabali.com/assets/CKImages/files/minecraft-pe-apk-free-download_GM479516143.pdfIn PDF document text
- https://www.alamrayabali.com/assets/CKImages/files/free-spins-coin-master-cheat_GM406889139.pdfIn PDF document text
- https://www.alamrayabali.com/assets/CKImages/files/mc-hacks_GM479516143.pdfIn PDF document text
- https://www.alamrayabali.com/assets/CKImages/files/free-spin-link-coin-master-today_GM406889139.pdfIn PDF document text
- https://www.alamrayabali.com/assets/CKImages/files/how-to-get-free-spins-in-coin-master_GM406889139.pdfIn PDF document text
- https://www.alamrayabali.com/assets/CKImages/files/coin-master-free-spins-blogspot_GM406889139.pdfIn PDF document text
- https://www.alamrayabali.com/assets/CKImages/files/minecraft-free-download_GM479516143.pdfIn PDF document text
- https://www.alamrayabali.com/assets/CKImages/files/free-coins-coin-master_GM406889139.pdfIn PDF document text
- https://www.alamrayabali.com/assets/CKImages/files/coin-master-free-spins-link-june-2021_GM406889139.pdfIn PDF document text
- https://www.alamrayabali.com/assets/CKImages/files/free-robux-hack-no-human-verification-or-survey_GM431946152.pdfIn PDF document text
- https://www.alamrayabali.com/assets/CKImages/files/how-to-pubg-uc-hack-2021_GM1330123889.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_004_off000051b5.bin`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x51B5	25452 bytes
SHA-256: `e380cbd077ffc3a4b3832283cae72a0d3b7c555e60f2bdcfa7b360c7bdd020fc`
`font_01_sfnt_off00008c87.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x8C87	2824 bytes
SHA-256: `94c1b019735d7e491765340abe50b2897410e2ec65ecf141c08bd9f2220897c4`
`font_02_sfnt_off00009636.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x9636	18684 bytes
SHA-256: `662354714a7c4aa127b8bd681013e9d5d113fbfc5a2f5afb2d34764175bb04a5`

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