Malicious PDF — malware analysis report

Static analysis result for SHA-256 ea8012254e2788b3…

MALICIOUS

PDF

37.2 KB Created: 2021-05-20 19:13:42 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-16
MD5: f348f4da0d223d1dce30d6928ed2deab SHA-1: ba9e108d02fcbbe0e7008f19239bfc4d2d2c3474 SHA-256: ea8012254e2788b35eefad802f706adbf9b34e7793eac257e815e33a59422947
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple links to known malicious redirectors and domains associated with scams for in-game currency and items. The document body explicitly mentions 'Free Minecraft Bedrock Server' and '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 sites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9447

Heuristics 4

  • 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.
  • 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-bedrock-server-game-hack In PDF document text
    • http://k2visual.com.br/images/get-free-robux-no-human-verification_GM431946152.pdfIn PDF document text
    • http://k2visual.com.br/images/free-spins-coins-coin-master_GM406889139.pdfIn PDF document text
    • http://k2visual.com.br/images/roblox-lawsuit_GM431946152.pdfIn PDF document text
    • http://k2visual.com.br/images/rbl-gg-free-robux_GM431946152.pdfIn PDF document text
    • http://k2visual.com.br/images/coinmaster-spin-ml_GM406889139.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_002_off0000361a.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x361A 25392 bytes
SHA-256: 7ad586b606a1b8ced0ab8243c481fefba22e995f19908be5d83630cf9f4a1e1c
font_01_sfnt_off00006fca.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6FCA 18384 bytes
SHA-256: 91126a517b1f6fe08fde59393e56e1de7cf034d0066f3393bf7fbc33808ed0e4

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