PDF malware analysis — malicious · 5016a4a1c0f0abb1

MALICIOUS

PDF

42.7 KB Created: 2021-05-17 23:45:05 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-27

MD5: c8d47c7ba4a03950379c1c0243a17ccb SHA-1: 64b387991bfb034b4122387260513656e0325942 SHA-256: 5016a4a1c0f0abb135059c5e623da26bab969900f50ce1e1a37181a73b39bcb1

162 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment

The PDF document contains numerous embedded links, many of which are part of a link farm designed to appear as legitimate download pages for popular games. The document explicitly requests recovery secrets or private keys, indicating a phishing attempt. The presence of a link to 'roblox-earn-robux-game-hack' suggests a lure for in-game currency, a common tactic for credential harvesting or malware distribution.

Machine Learning

Nyx PDF Classifier malicious score 0.9971

Heuristics 5

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.
Recovery secret / private key request critical SE_SECRET_RECOVERY_LURE

Document requests recovery phrases, private keys, backup codes, or saved passwords. Requests for these secrets in a document are high-risk.
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/431946152/roblox-earn-robux-game-hack PDF link annotation
- https://lesegais.ru/images/minecraft-java-edition-free-download_GM479516143.pdfIn PDF document text
- https://lesegais.ru/images/how-to-get-free-robux-without-verification-or-surveys_GM431946152.pdfIn PDF document text
- https://lesegais.ru/images/coin-master-hack-2021-apk-download_GM406889139.pdfIn PDF document text
- https://lesegais.ru/images/coin-master-email-rewards-link_GM406889139.pdfIn PDF document text
- https://lesegais.ru/images/roblox-free-robux-com_GM431946152.pdfIn PDF document text
- https://lesegais.ru/images/how-to-get-free-robux-2021_GM431946152.pdfIn PDF document text
- https://lesegais.ru/images/how-to-get-free-roebucks-on-roblox_GM431946152.pdfIn PDF document text
- https://lesegais.ru/images/coin-master-free-coins-link_GM406889139.pdfIn PDF document text
- https://lesegais.ru/images/free-spins-and-coins-coin-master_GM406889139.pdfIn PDF document text
- https://lesegais.ru/images/free-spins-and-coins-on-coin-master_GM406889139.pdfIn PDF document text
- https://lesegais.ru/images/free-coins_GM406889139.pdfIn PDF document text
- https://lesegais.ru/images/how-to-block-someone-on-coin-master_GM406889139.pdfIn PDF document text
- https://lesegais.ru/images/coin-master-free-2021-spin-link-today_GM406889139.pdfIn PDF document text
- https://lesegais.ru/images/best-tricks-co-robux_GM431946152.pdfIn PDF document text
- https://lesegais.ru/images/how-to-get-free-robux-on-chromebook_GM431946152.pdfIn PDF document text
- https://lesegais.ru/images/coin-master-hack-pc_GM406889139.pdfIn PDF document text
- https://lesegais.ru/images/today-coin-master-spin-free_GM406889139.pdfIn PDF document text
- https://lesegais.ru/images/descargar-hack-coin-master_GM406889139.pdfIn PDF document text
- https://lesegais.ru/images/coin-master-free-spins-and-coins_GM406889139.pdfIn PDF document text
- https://lesegais.ru/images/minecraft-hacks-18-9_GM479516143.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_003_off00004572.bin`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x4572	27432 bytes
SHA-256: `6b644c88a116d96b763b8f972691813916f93063f1dfe346d3aa0349c9c0b65f`
`font_01_sfnt_off00008515.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x8515	18152 bytes
SHA-256: `ac560818c0950b36a4d7f23f452e83199291727370614d0236bf7521a0e82fc3`

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