Malicious PDF — malware analysis report

Static analysis result for SHA-256 226120ee32712def…

MALICIOUS

PDF

42.3 KB Created: 2021-05-16 05:32:56 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-11-21
MD5: d38026ab804e6a684a28bc427cd0af73 SHA-1: 4decf9602a5b54fc73ca065ed05f649a2df0fd9f SHA-256: 226120ee32712def75cdb286b14af04a793535c7a9601f2d4a38dd4656a4ffa8
180 Risk Score

Malware Insights

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

This PDF document contains multiple links to malicious redirectors and game hack sites, designed to lure users into potentially harmful content. The presence of a visual download button and callback lure further supports a phishing or scam-oriented attack pattern. No scripts were extracted, but the embedded URLs are the primary indicators of malicious intent.

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.
  • Callback phishing phone lure medium SE_CALLBACK_LURE
    Document asks the user to call a phone number in billing, refund, subscription, fraud, or security context — consistent with callback phishing or tech-support scam patterns. Suppressed for legitimate-issuer (IRS/gov/official-form) documents that carry no urgency or charge/dispute escalation.
  • 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/431946152/roblox-hack-site-game-hack In PDF document text
    • http://warehousewestllc.com/images/coin-master-cheats-free-spins_GM406889139.pdfIn PDF document text
    • http://warehousewestllc.com/images/coin-master-hacks-2021_GM406889139.pdfIn PDF document text
    • http://warehousewestllc.com/images/80-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • http://warehousewestllc.com/images/free-avatar-roblox_GM431946152.pdfIn PDF document text
    • http://warehousewestllc.com/images/robux-generator-no-verification-needed_GM431946152.pdfIn PDF document text
    • http://warehousewestllc.com/images/how-to-get-free-coins-and-spins-on-coin-master_GM406889139.pdfIn PDF document text
    • http://warehousewestllc.com/images/coin-master-daily-free-spin-app_GM406889139.pdfIn PDF document text
    • http://warehousewestllc.com/images/robux-without-verification_GM431946152.pdfIn PDF document text
    • http://warehousewestllc.com/images/roblox-free-robux-no-human-verification_GM431946152.pdfIn PDF document text
    • http://warehousewestllc.com/images/master-coin-hack-app_GM406889139.pdfIn PDF document text
    • http://warehousewestllc.com/images/roblox-place-rewards_GM431946152.pdfIn PDF document text
    • http://warehousewestllc.com/images/how-to-hack-roblox-to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://warehousewestllc.com/images/can-you-give-me-free-robux_GM431946152.pdfIn PDF document text
    • http://warehousewestllc.com/images/coin-master-free-spins-23-march-2021_GM406889139.pdfIn PDF document text
    • http://warehousewestllc.com/images/coin-master-download_GM406889139.pdfIn PDF document text
    • http://warehousewestllc.com/images/coin-master-free-spins-link-blogspot-today_GM406889139.pdfIn PDF document text
    • http://warehousewestllc.com/images/coin-master-real-hack_GM406889139.pdfIn PDF document text
    • http://warehousewestllc.com/images/how-to-hack-roblox-accounts-on-phone-2021_GM431946152.pdfIn PDF document text
    • http://warehousewestllc.com/images/free-robux-download_GM431946152.pdfIn PDF document text
    • http://warehousewestllc.com/images/latest-free-spin-coin-master-daily_GM406889139.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_off0000485b.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x485B 26344 bytes
SHA-256: 498fa5ae6f328a4452e97c4ad296b91f029aaa1f7b1ae1e242fc4e21c9e5c539
font_01_sfnt_off00008260.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8260 18408 bytes
SHA-256: baa68e8b80fe17984eb0f5893287011db8c451c65a8bba41303beeb2aadfa952

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