Malicious PDF — malware analysis report

Static analysis result for SHA-256 1fede448c12554f0…

MALICIOUS

PDF

35.2 KB Created: 2021-06-26 02:58:59 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-13
MD5: 6664ac612412118d345e137d207af526 SHA-1: c8c3d22b93e6388b5edfcb44803ce0ec72d562b9 SHA-256: 1fede448c12554f06d037102aa99f9346712e30940e59c9de154920cfcbfffd2
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple links that are identified as malicious redirectors, specifically leading to a 'game hack' lure. The document body and embedded URLs suggest a social engineering tactic to trick users into visiting potentially harmful websites. The ML classifier also strongly indicated maliciousness.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

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 http://netcdn.co/app/431946152/cheat-roblox-jailbreak-money-game-hack In PDF document text
    • https://www.ak-oroslavje.hr/files/get-free-robux-on-roblox-using-no-downloads_GM431946152.pdfIn PDF document text
    • https://www.ak-oroslavje.hr/files/hack-roblox-cbro-download_GM431946152.pdfIn PDF document text
    • https://www.ak-oroslavje.hr/files/coin-master-free-blogspot_GM406889139.pdfIn PDF document text
    • https://www.ak-oroslavje.hr/files/how-to-get-free-spins-and-coins-in-coin-master_GM406889139.pdfIn PDF document text
    • https://www.ak-oroslavje.hr/files/free-tiktok-followers-real_GM835599320.pdfIn PDF document text
    • https://www.ak-oroslavje.hr/files/hacks-and-cheats-for-coin-master_GM406889139.pdfIn PDF document text
    • https://www.ak-oroslavje.hr/files/how-to-get-free-robux-2021-no-human-verification_GM431946152.pdfIn PDF document text
    • https://www.ak-oroslavje.hr/files/how-to-get-free-robux-without-verification-or-surveys_GM431946152.pdfIn PDF document text
    • https://www.ak-oroslavje.hr/files/coin-master-rewards-free-spins_GM406889139.pdfIn PDF document text
    • https://www.ak-oroslavje.hr/files/free-robux-live_GM431946152.pdfIn PDF document text
    • https://www.ak-oroslavje.hr/files/free-robux-app-real_GM431946152.pdfIn PDF document text
    • https://www.ak-oroslavje.hr/files/game-give-free-robux_GM431946152.pdfIn PDF document text
    • https://www.ak-oroslavje.hr/files/coin-master-home_GM406889139.pdfIn PDF document text
    • https://www.ak-oroslavje.hr/files/coin-master-free-spin-ml_GM406889139.pdfIn PDF document text
    • https://www.ak-oroslavje.hr/files/working-coin-master-hack-2021_GM406889139.pdfIn PDF document text
    • https://www.ak-oroslavje.hr/files/coin-master-free-spins-instagram_GM406889139.pdfIn PDF document text
    • https://www.ak-oroslavje.hr/files/coin-master-daily-spin-free_GM406889139.pdfIn PDF document text
    • https://www.ak-oroslavje.hr/files/minecraft-pc-free_GM479516143.pdfIn PDF document text
    • https://www.ak-oroslavje.hr/files/roblox-hack-robux-hack_GM431946152.pdfIn PDF document text
    • https://www.ak-oroslavje.hr/files/minecraft-pe-hack-client-2021_GM479516143.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Related samples 7

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_002_off00003022.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x3022 22632 bytes
SHA-256: aa9584ba1378d314e5f87784860f55a1d268f670e4db8e7de9fdb9b16e87e1dc
font_01_sfnt_off000062e4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x62E4 19588 bytes
SHA-256: cbe334226991d0560d3c70159c6ab570ff77cea4a22faed1844e8e68be1c42fa

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