Malicious PDF — malware analysis report

Static analysis result for SHA-256 1691e551ba212b27…

MALICIOUS

PDF

38.9 KB Created: 2021-05-24 22:08:59 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-26
MD5: 511408353637798391fb747a770c85cf SHA-1: 9d4380fdcc568da5d74ca8e6e86d93b20039878f SHA-256: 1691e551ba212b2718680b3f924c298af9603c38c3c4ae0390f145b5cb527922
200 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

The PDF contains multiple links to known malicious redirectors and infrastructure, disguised as game hacks and generators. The document body explicitly mentions 'CLICK HERE TO ACCESS MINECRAFT GENERATOR', reinforcing the lure. The presence of embedded URLs and the ML classifier's high confidence score indicate a malicious intent to redirect users to potentially harmful content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8060

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.
  • Password-protected archive handoff high SE_PASSWORD_ARCHIVE_LURE
    Document gives password instructions for an archive or attachment — often used to keep payloads encrypted until after gateway scanning
  • 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/479516143/free-minecraft-skin-maker-game-hack In PDF document text
    • https://fordogtrainers.mx:443/images/coin-master-hack-2021_GM406889139.pdfIn PDF document text
    • https://fordogtrainers.mx:443/images/coin-master-free-spins-and-coins-daily_GM406889139.pdfIn PDF document text
    • https://fordogtrainers.mx:443/images/free-role-in-coin-master_GM406889139.pdfIn PDF document text
    • https://fordogtrainers.mx:443/images/roblox-promo-codes-for-free-robux_GM431946152.pdfIn PDF document text
    • https://fordogtrainers.mx:443/images/how-to-get-robux-for-free-2021_GM431946152.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.

FilenameKindSourceSize
stream_002_off00003488.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x3488 25260 bytes
SHA-256: ad4a70281cb8e8cb492c3ff65334f6970c0f7b3e54d13d89bb6f8353f631c09d
font_01_sfnt_off00006ed1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6ED1 2824 bytes
SHA-256: 61b3a573627d4f03d30684157e1627da3b4499cefab0fdf17b45999135b0250b
font_02_sfnt_off00007878.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7878 17740 bytes
SHA-256: 7e8236a58a56ce0148da12d4a95e9c7df934e3b28e502a8d8a58237e3f9d26f8

Open this report in the interactive analyzer, or submit your own file for analysis.