Malicious PDF — malware analysis report

Static analysis result for SHA-256 3ce863140a090afa…

MALICIOUS

PDF

42.2 KB Created: 2021-05-13 07:00:25 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-07
MD5: 2bccdbfb27f36694484f034507630a37 SHA-1: 4711d40b685799831c66cfe6b5886e5a633c9167 SHA-256: 3ce863140a090afab31c27c027797398730ef610153ef9e24a1385d00caffe8d
220 Risk Score

Malware Insights

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

This PDF document contains multiple links to known malicious redirectors and lures users with promises of game hacks or free currency. The document explicitly requests sensitive information such as recovery secrets or private keys, indicating a phishing or credential harvesting attempt. The primary malicious URL identified is https://netcdn.xyz/app/406889139/coin-master-free-coins-link-game-hack.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9971

Heuristics 5

  • PDF links to a 'free generator / game hack' redirector critical 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. CRITICAL on its own: the /app/<id>/<slug>-game-hack path shape is unambiguous scam infra, and the host rotates so a host-list match can't be relied on.
  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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
  • 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/406889139/coin-master-free-coins-link-game-hack In PDF document text
    • http://new-era.com.tw/image/data/files/free-pet-food-for-coin-master_GM406889139.pdfIn PDF document text
    • http://new-era.com.tw/image/data/files/free-robux-no-human-verification-and-no-survey_GM431946152.pdfIn PDF document text
    • https://new-era.com.tw/image/data/files/impact-minecraft-hack_GM479516143.pdfIn PDF document text
    • https://new-era.com.tw/image/data/files/blogspot-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • https://new-era.com.tw/image/data/files/roblox-hack-tool_GM431946152.pdfIn PDF document text
    • http://new-era.com.tw/image/data/files/freerubux_GM431946152.pdfIn PDF document text
    • http://new-era.com.tw/image/data/files/roblox-promo-code-to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://new-era.com.tw/image/data/files/coin-master-extra-spins_GM406889139.pdfIn PDF document text
    • http://new-era.com.tw/image/data/files/robux-place-rewards_GM431946152.pdfIn PDF document text
    • http://new-era.com.tw/image/data/files/give-me-free-robux_GM431946152.pdfIn PDF document text
    • http://new-era.com.tw/image/data/files/free-robux-picture_GM431946152.pdfIn PDF document text
    • http://new-era.com.tw/image/data/files/coin-master-spin-hack-trick_GM406889139.pdfIn PDF document text
    • http://new-era.com.tw/image/data/files/mc-hacks_GM479516143.pdfIn PDF document text
    • http://new-era.com.tw/image/data/files/free-robux-codes-2021_GM431946152.pdfIn PDF document text
    • http://new-era.com.tw/image/data/files/coin-master-daily-free-spins-blogspot_GM406889139.pdfIn PDF document text
    • http://new-era.com.tw/image/data/files/how-to-get-free-robux-without-verifying_GM431946152.pdfIn PDF document text
    • https://new-era.com.tw/image/data/files/free-robux-apk_GM431946152.pdfIn PDF document text
    • https://new-era.com.tw/image/data/files/haktuts-coin-master-free-daily-spins_GM406889139.pdfIn PDF document text
    • https://new-era.com.tw/image/data/files/coin-master-free-spins-link-2021-today_GM406889139.pdfIn PDF document text
    • https://new-era.com.tw/image/data/files/how-to-hack-someones-account-on-roblox_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.

FilenameKindSourceSize
stream_003_off00004939.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4939 25768 bytes
SHA-256: d03e26f8bb571eae494a83b8f5df4a4db30715d93350eb3af0af100b553abffd
font_01_sfnt_off00008408.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8408 17880 bytes
SHA-256: 5ce88b684446e36e89a0643934549b22fce1d776877bbe9d9a558feafde7429d