Malicious PDF — malware analysis report

Static analysis result for SHA-256 43e45ec544c912c3…

MALICIOUS

PDF

41.7 KB Created: 2021-05-14 08:34:04 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-01
MD5: 5add4592b2076c4ffa2a1707c36e9755 SHA-1: c1e37b08f0ddd5f1d3f742e6de5f48f3fa5b70a2 SHA-256: 43e45ec544c912c353813c60c71f3b41f44db572d8153e9734b89cc327b71292
102 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document was flagged as malicious by an ML classifier. It uses a callback-phone (TOAD) lure. The file routes users through malicious redirector infrastructure and presents a deceptive download button. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9971

Heuristics 5

  • PDF links to a 'free generator / game hack' redirector high 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.
  • 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
  • External URI info PDF_URI
    PDF contains an external URL action
  • 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-pc-hack-game-hack PDF link annotation
    • http://lookpaineis.com.br/images/roblox-source_GM431946152.pdfIn PDF document text
    • http://lookpaineis.com.br/images/free-robux-hack-generator_GM431946152.pdfIn PDF document text
    • http://lookpaineis.com.br/images/free-spins-and-coins-for-coin-master_GM406889139.pdfIn PDF document text
    • http://lookpaineis.com.br/images/roblox-arsenal-hack_GM431946152.pdfIn PDF document text
    • http://lookpaineis.com.br/images/how-to-get-free-robux-without-human-verification_GM431946152.pdfIn PDF document text
    • http://lookpaineis.com.br/images/roblox-pink-free-robux_GM431946152.pdfIn PDF document text
    • http://lookpaineis.com.br/images/bux-free-robux_GM431946152.pdfIn PDF document text
    • http://lookpaineis.com.br/images/how-to-free-robux_GM431946152.pdfIn PDF document text
    • http://lookpaineis.com.br/images/free-robux-com_GM431946152.pdfIn PDF document text
    • http://lookpaineis.com.br/images/how-to-hack-someones-roblox-account_GM431946152.pdfIn PDF document text
    • http://lookpaineis.com.br/images/hack-coin-master-android_GM406889139.pdfIn PDF document text
    • http://lookpaineis.com.br/images/minecraft-reach-hack_GM479516143.pdfIn PDF document text
    • http://lookpaineis.com.br/images/coin-master-hack-with-facebook-login_GM406889139.pdfIn PDF document text
    • http://lookpaineis.com.br/images/easy-how-to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://lookpaineis.com.br/images/get-free-robux-now_GM431946152.pdfIn PDF document text
    • http://lookpaineis.com.br/images/free-spins-coin-master-apple_GM406889139.pdfIn PDF document text
    • http://lookpaineis.com.br/images/how-to-hack-minecraft-pe_GM479516143.pdfIn PDF document text
    • http://lookpaineis.com.br/images/free-roblox-printables_GM431946152.pdfIn PDF document text
    • http://lookpaineis.com.br/images/25-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • http://lookpaineis.com.br/images/coin-master-hacks-for-gold-cards_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_003_off000049b8.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x49B8 24676 bytes
SHA-256: a658450037e9836c17ce4116861f18e31b2c29332e4140f404fdaf5dccc13957
font_01_sfnt_off000081ca.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x81CA 17868 bytes
SHA-256: 2afdedecde820afe22901ca35ab1de7d9bd06462c55bbc4b8ddd703c94e78653

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