Malicious PDF — malware analysis report

Static analysis result for SHA-256 e3f918623586c197…

MALICIOUS

PDF

49.2 KB Created: 2021-05-16 07:29:07 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-11-25
MD5: bb5aadb8af72ea230169651fd2f4c5af SHA-1: c9a3e842ee921f149fcc1ab9938d131f958d86eb SHA-256: e3f918623586c197bced30d678efbd7b12530d7ec85a92b5d8a38a633aea16ca
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links to known malicious redirectors and game hack lures, designed to trick users into visiting potentially harmful websites. The document body and embedded URLs strongly suggest a phishing or scam attempt, likely distributed as a spearphishing attachment. No scripts were extracted, but the presence of numerous malicious URLs is a high-confidence indicator.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8642

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/406889139/coin-master-free-spin-link-list-game-hack In PDF document text
    • http://tegeler-segler.de/images/get-free-spins-for-coin-master_GM406889139.pdfIn PDF document text
    • http://tegeler-segler.de/images/inappropriate-roblox-games-2021_GM431946152.pdfIn PDF document text
    • http://tegeler-segler.de/images/coin-master-free-spins-link-june-2021_GM406889139.pdfIn PDF document text
    • http://tegeler-segler.de/images/minecraft-wurst-client_GM479516143.pdfIn PDF document text
    • http://tegeler-segler.de/images/200-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • http://tegeler-segler.de/images/minecraft-build-hacks_GM479516143.pdfIn PDF document text
    • http://tegeler-segler.de/images/free-coin-master-spins-blog_GM406889139.pdfIn PDF document text
    • http://tegeler-segler.de/images/minecraft-pocket-edition-download-free-pe-calculator_GM479516143.pdfIn PDF document text
    • http://tegeler-segler.de/images/roblox-arsenal-hacks-download_GM431946152.pdfIn PDF document text
    • http://tegeler-segler.de/images/coin-and-spin_GM406889139.pdfIn PDF document text
    • http://tegeler-segler.de/images/roblox-games-free_GM431946152.pdfIn PDF document text
    • http://tegeler-segler.de/images/how-to-get-free-robux-2021-easy_GM431946152.pdfIn PDF document text
    • http://tegeler-segler.de/images/minecraft-diamond-finder-hack_GM479516143.pdfIn PDF document text
    • http://tegeler-segler.de/images/wurst-hacks_GM479516143.pdfIn PDF document text
    • http://tegeler-segler.de/images/coin-master-spins-hack-2021_GM406889139.pdfIn PDF document text
    • http://tegeler-segler.de/images/roblox-free-robux-no-human-verification_GM431946152.pdfIn PDF document text
    • http://tegeler-segler.de/images/coinmasterdailyfreespins-com_GM406889139.pdfIn PDF document text
    • http://tegeler-segler.de/images/free-robux-gen_GM431946152.pdfIn PDF document text
    • http://tegeler-segler.de/images/minecraft-pocket-edition-free-ios_GM479516143.pdfIn PDF document text
    • http://tegeler-segler.de/images/minecraft-pc-download-free-full-version_GM479516143.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off00004d2c.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4D2C 26472 bytes
SHA-256: 615a72031e466d0ac2548f9a8515a14e9e8aaf2b6e91da1d6927b23662fb9313
font_01_sfnt_off00008769.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8769 3552 bytes
SHA-256: 24ec1c2fe48b69ded8aa6f3140f5a5e6df11b6e1d8d0f0db8b5967004db32e7a
font_02_sfnt_off000093bf.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x93BF 18056 bytes
SHA-256: a4f33549350803e8a819cbfad6b4ff3cdc0b302ceab74af9f2f663eab6bd9ec0
font_03_sfnt_off0000b50a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB50A 3264 bytes
SHA-256: e32c06502c11b52acb5e814091c5fdbffd1e2a904ac7a9cfb8b5b180bd139088

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