Malicious PDF — malware analysis report

Static analysis result for SHA-256 704c24ffad8da0dd…

MALICIOUS

PDF

37.5 KB Created: 2021-05-20 13:04:58 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-08-25
MD5: d69194d0770baac6657ac13cadf919f2 SHA-1: 1ea82766648fa8ac0e60866dbfe57c8ca35c37a1 SHA-256: 704c24ffad8da0ddbf4510cff3459b9921086ef839d3459d1fc554835268d16b
160 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, disguised with lures like 'free VPN for Minecraft' and 'game hack'. The document body also contains a call-to-action phrase 'CLICK HERE TO ACCESS MINECRAFT GENERATOR', reinforcing the deceptive nature of the content. The ML classifier also flagged this PDF as malicious, indicating a high probability of malicious intent.

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-vpn-for-minecraft-game-hack In PDF document text
    • https://opac.heritagejkt.org/repository/coin-master-daily-free-spins-link-2021_GM406889139.pdfIn PDF document text
    • https://opac.heritagejkt.org/repository/free-roblox-clothes-for-your-avatar_GM431946152.pdfIn PDF document text
    • https://opac.heritagejkt.org/repository/coin-master-free-spins-link-2021-blogger_GM406889139.pdfIn PDF document text
    • https://opac.heritagejkt.org/repository/free-robux-no-human-verification-or-survey-2021_GM431946152.pdfIn PDF document text
    • https://opac.heritagejkt.org/repository/coin-master-free-spins-link-no-verification-2021_GM406889139.pdfIn PDF document text
    • http://www.freenom.comHeyIn 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_002_off0000382d.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x382D 25332 bytes
SHA-256: 4aa393e408f7e803da446ba1d2f463ea3a57f796d2c87c2e940a405add58693b
font_01_sfnt_off00007221.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7221 18020 bytes
SHA-256: 911504367fe567166c33f6e3692a77db00fa7c0328364f4a395a35c32f792d6f

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