Malicious PDF — malware analysis report

Static analysis result for SHA-256 167903a88b98590a…

MALICIOUS

PDF

46.7 KB Created: 2021-05-17 21:55:30 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-27
MD5: 6c095739d65c86b42fd681f69b24709f SHA-1: 50eaf508eb460d53db07cb7610a8118a5c0dc5bf SHA-256: 167903a88b98590a6c957ba40f8466745eac5f1c35bac8488bf7cb91f442839b
142 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The PDF document contains multiple links to external websites that are advertised as game hacks or generators, such as 'my-roblox-avatar-game-hack'. The heuristic 'SE_SECRET_RECOVERY_LURE' indicates that the document may also attempt to solicit sensitive information like private keys or passwords. The primary attack pattern involves tricking users into clicking malicious links that likely lead to credential harvesting or further malware delivery.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8948

Heuristics 5

  • 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.
  • 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 https://netcdn.xyz/app/431946152/my-roblox-avatar-game-hack PDF link annotation
    • https://ogm-goettingen.de/images/roblox-hack-unlimited-robux_GM431946152.pdfIn PDF document text
    • https://ogm-goettingen.de/images/google-how-do-you-get-robux_GM431946152.pdfIn PDF document text
    • https://ogm-goettingen.de/images/coin-master-hack-ios-apk_GM406889139.pdfIn PDF document text
    • https://ogm-goettingen.de/images/coin-master-hack-2021-no-survey_GM406889139.pdfIn PDF document text
    • https://ogm-goettingen.de/images/free-roblox-gift-card_GM431946152.pdfIn PDF document text
    • https://ogm-goettingen.de/images/how-to-hack-coin-master-using-es-file_GM406889139.pdfIn PDF document text
    • https://ogm-goettingen.de/images/free-robux-kid-friendly_GM431946152.pdfIn PDF document text
    • https://ogm-goettingen.de/images/coin-master-hack-uk_GM406889139.pdfIn PDF document text
    • https://ogm-goettingen.de/images/coin-master-free-spins-link-2021-today_GM406889139.pdfIn PDF document text
    • https://ogm-goettingen.de/images/haktuts-coin-master-free-daily-spins_GM406889139.pdfIn PDF document text
    • https://ogm-goettingen.de/images/coin-master-spin-link-today_GM406889139.pdfIn PDF document text
    • https://ogm-goettingen.de/images/roblox-hack-client_GM431946152.pdfIn PDF document text
    • https://ogm-goettingen.de/images/free-robux-site_GM431946152.pdfIn PDF document text
    • https://ogm-goettingen.de/images/roblox-free-robux-hack_GM431946152.pdfIn PDF document text
    • https://ogm-goettingen.de/images/coin-master-free-spins-link-no-verification-2021_GM406889139.pdfIn PDF document text
    • https://ogm-goettingen.de/images/coin-master-free-daily-spins-and-coins_GM406889139.pdfIn PDF document text
    • https://ogm-goettingen.de/images/how-to-get-free-cards-in-coin-master_GM406889139.pdfIn PDF document text
    • https://ogm-goettingen.de/images/how-to-get-free-robux-without-human-verification_GM431946152.pdfIn PDF document text
    • https://ogm-goettingen.de/images/coin-master-gameplay_GM406889139.pdfIn PDF document text
    • https://ogm-goettingen.de/images/roblox-hack-me-robux_GM431946152.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00004a5e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4A5E 27344 bytes
SHA-256: bafbbe4e2cdc340d7a7f904900c754fb262a5e30ba376d9a9a0cef7bd8245628
font_01_sfnt_off000088be.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x88BE 2880 bytes
SHA-256: 10d025f04f706eb71cdda4f99784df1b9ccb52e48080e43095e0398eaef6f132
font_02_sfnt_off000092a9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x92A9 18604 bytes
SHA-256: cc2ffa7c3a9026ed881cd01f42f990a164ca5dac15d0d25057d5d6d73c318e0d

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