Malicious PDF — malware analysis report

Static analysis result for SHA-256 3e7f7af359917203…

MALICIOUS

PDF

46.9 KB Created: 2021-05-13 11:31:11 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-13
MD5: d33136a0f085829d93208883bad3a802 SHA-1: 30c3b40ede41735d6e2fb919b27c0d6c09a7f303 SHA-256: 3e7f7af359917203cc3cf20a451b09c5246582814862173a406a82aa2a6159e4
100 Risk Score

Malware Insights

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

The PDF contains embedded links and a visual download button, strongly suggesting a lure to download external content. The primary link points to a suspicious URL associated with a 'Coin Master Apk Hack', indicating a social engineering attempt. The ML classifier also flagged this PDF as malicious.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8948

Heuristics 3

  • 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/406889139/android-coin-master-3.4.33-apk-hack-game-hack In PDF document text
    • http://www.mikramarine.gr/images/free-robux-no-human-verification-or-survey-2021_GM431946152.pdfIn PDF document text
    • http://www.mikramarine.gr/images/free-robux-without-verify_GM431946152.pdfIn PDF document text
    • http://www.mikramarine.gr/images/how-to-hack-someones-roblox-account-2021_GM431946152.pdfIn PDF document text
    • http://www.mikramarine.gr/images/free-minecraft-education-edition_GM479516143.pdfIn PDF document text
    • http://www.mikramarine.gr/images/how-to-get-free-robux-fast_GM431946152.pdfIn PDF document text
    • http://www.mikramarine.gr/images/easy-how-to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://www.mikramarine.gr/images/roblox-login-hack_GM431946152.pdfIn PDF document text
    • http://www.mikramarine.gr/images/free-robux-no-generator_GM431946152.pdfIn PDF document text
    • http://www.mikramarine.gr/images/minecraft-classic-free_GM479516143.pdfIn PDF document text
    • http://www.mikramarine.gr/images/free-minecraft-server-hosting-24-7_GM479516143.pdfIn PDF document text
    • http://www.mikramarine.gr/images/coin-master-free-spins-link-may-2021_GM406889139.pdfIn PDF document text
    • http://www.mikramarine.gr/images/coin-master-real-hack_GM406889139.pdfIn PDF document text
    • http://www.mikramarine.gr/images/coin-master-free-attack-hack_GM406889139.pdfIn PDF document text
    • http://www.mikramarine.gr/images/free-roblox-accounts-with-builders-club_GM431946152.pdfIn PDF document text
    • http://www.mikramarine.gr/images/coin-master-free-spins-and-coins-2021_GM406889139.pdfIn PDF document text
    • http://www.mikramarine.gr/images/how-to-robux_GM431946152.pdfIn PDF document text
    • http://www.mikramarine.gr/images/robuxglobalcom_GM431946152.pdfIn PDF document text
    • http://www.mikramarine.gr/images/coin-master-free-spins-apk_GM406889139.pdfIn PDF document text
    • http://www.mikramarine.gr/images/how-to-get-roblox-premium-for-free-2021_GM431946152.pdfIn PDF document text
    • http://www.mikramarine.gr/images/hacks-para-coin-master_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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off00004c13.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4C13 25376 bytes
SHA-256: e3f93b6021d1e90010d00b1e87358830496ad7589ef1c516376312c251726cc8
font_01_sfnt_off0000870e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x870E 4020 bytes
SHA-256: dbaa9c12d07f3632734605f1d5d6dee3ad5af1f57488e46d95dab68b383f08c5
font_02_sfnt_off00009495.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9495 18368 bytes
SHA-256: 2f065b262c90889b0791dea6979f9c4554e2b44db1fd5e7dc87a2220bb7dab5c

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