Malicious PDF — malware analysis report

Static analysis result for SHA-256 68e95aaee07a13b2…

MALICIOUS

PDF

42.5 KB Created: 2021-05-20 02:50:50 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-25
MD5: b38afa3a64964c59235b0b1991891faa SHA-1: 213921ef71df591f78dd2ea17668471b28b38082 SHA-256: 68e95aaee07a13b2d4e2719fc2903783dfd7792dd37cf744a0d882d538175aff
62 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 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 4

  • 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/431946152/what PDF link annotation
    • http://fotoflas.gr/images/free-robux-meme_GM431946152.pdfIn PDF document text
    • http://fotoflas.gr/images/coin-master-fan-page-facebook_GM406889139.pdfIn PDF document text
    • http://fotoflas.gr/images/free-roblox-accounts-with-robux-that-work-2021_GM431946152.pdfIn PDF document text
    • http://fotoflas.gr/images/roblox-com-free_GM431946152.pdfIn PDF document text
    • http://fotoflas.gr/images/how-to-get-free-robux-easy-on-phone_GM431946152.pdfIn PDF document text
    • http://fotoflas.gr/images/how-to-get-free-cards-in-coin-master_GM406889139.pdfIn PDF document text
    • http://fotoflas.gr/images/irobux-com-redeem_GM431946152.pdfIn PDF document text
    • http://fotoflas.gr/images/200-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • http://fotoflas.gr/images/coin-master-hack-unlimited-spins-and-coins-cheats_GM406889139.pdfIn PDF document text
    • http://fotoflas.gr/images/best-free-minecraft-hacked-client_GM479516143.pdfIn PDF document text
    • http://fotoflas.gr/images/get-viral-on-tiktok-free_GM835599320.pdfIn PDF document text
    • http://fotoflas.gr/images/100-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • http://fotoflas.gr/images/claim-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • http://fotoflas.gr/images/can-lucky-patcher-hack-coin-master_GM406889139.pdfIn PDF document text
    • http://fotoflas.gr/images/coin-master-free-in-app-purchases_GM406889139.pdfIn PDF document text
    • http://fotoflas.gr/images/coin-master-vip-hack_GM406889139.pdfIn PDF document text
    • http://fotoflas.gr/images/roblox-18_GM431946152.pdfIn PDF document text
    • http://fotoflas.gr/images/coin-master-unlimited-spin-hack-apk_GM406889139.pdfIn PDF document text
    • http://fotoflas.gr/images/free-roblox-hair-to-wear_GM431946152.pdfIn PDF document text
    • http://fotoflas.gr/images/mistplay-robux_GM431946152.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_off000047c8.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x47C8 25236 bytes
SHA-256: 7a7240f27d41ec956ec5a978f30beecbe24e1d12273eff0b0a9fab650ddb5743
font_01_sfnt_off0000829f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x829F 18608 bytes
SHA-256: ff19be0cad14758b658f08e46864a6c8eb95815c150b505e3e976822d13d62a4

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