Malicious PDF — malware analysis report

Static analysis result for SHA-256 1803a46cc9bd47fd…

MALICIOUS

PDF

44.2 KB Created: 2021-05-17 07:03:39 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-16
MD5: 278691880e0d30156ddd12b79e3e055b SHA-1: 5fcecedc15f33b4e03c2a59427f62570b4fdcc7c SHA-256: 1803a46cc9bd47fd67485428dcb4b52999996dc5b09ac4e6da54d44542b95581
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document employs a common lure of 'free Robux' or game hacks to entice users. It contains multiple embedded URLs that redirect to malicious infrastructure, specifically identified as a redirector. The document body and heuristics indicate a clear intent to lead users to potentially harmful websites, likely for further exploitation or credential harvesting.

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 https://netcdn.xyz/app/431946152/free-robux-no-offers-game-hack In PDF document text
    • https://nyomansuwirta.com/assets/CKImages/files/minecraft-cracked-client_GM479516143.pdfIn PDF document text
    • https://nyomansuwirta.com/assets/CKImages/files/huskybuckscom-free-robux_GM431946152.pdfIn PDF document text
    • https://nyomansuwirta.com/assets/CKImages/files/coin-master-free-spins-hack_GM406889139.pdfIn PDF document text
    • https://nyomansuwirta.com/assets/CKImages/files/free-robux-no-human-verification-or-survey_GM431946152.pdfIn PDF document text
    • https://nyomansuwirta.com/assets/CKImages/files/how-to-hack-roblox-for-robux_GM431946152.pdfIn PDF document text
    • https://nyomansuwirta.com/assets/CKImages/files/coin-master-game-free_GM406889139.pdfIn PDF document text
    • https://nyomansuwirta.com/assets/CKImages/files/minecraft-for-free-games_GM479516143.pdfIn PDF document text
    • https://nyomansuwirta.com/assets/CKImages/files/como-hackear-juego-coin-master_GM406889139.pdfIn PDF document text
    • https://nyomansuwirta.com/assets/CKImages/files/games-that-give-free-robux_GM431946152.pdfIn PDF document text
    • https://nyomansuwirta.com/assets/CKImages/files/minecraft-servers-that-allow-hacks_GM479516143.pdfIn PDF document text
    • https://nyomansuwirta.com/assets/CKImages/files/hack-coin-master-for-android_GM406889139.pdfIn PDF document text
    • https://nyomansuwirta.com/assets/CKImages/files/show-me-how-to-get-free-robux_GM431946152.pdfIn PDF document text
    • https://nyomansuwirta.com/assets/CKImages/files/coin-master-hack-2021_GM406889139.pdfIn PDF document text
    • https://nyomansuwirta.com/assets/CKImages/files/roblox-cheat_GM431946152.pdfIn PDF document text
    • https://nyomansuwirta.com/assets/CKImages/files/how-to-get-minecraft-pe-for-free-ios_GM479516143.pdfIn PDF document text
    • https://nyomansuwirta.com/assets/CKImages/files/coin-master-card-hack_GM406889139.pdfIn PDF document text
    • https://nyomansuwirta.com/assets/CKImages/files/free-roblox-accounts-with-robux-that-work-2021_GM431946152.pdfIn PDF document text
    • https://nyomansuwirta.com/assets/CKImages/files/hack-coin-master-for-free_GM406889139.pdfIn PDF document text
    • https://nyomansuwirta.com/assets/CKImages/files/minecraft-pe-hacks_GM479516143.pdfIn PDF document text
    • https://nyomansuwirta.com/assets/CKImages/files/free-robux-generator-no-human-verification-or-surveys_GM431946152.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
font_00_sfnt_off00004a23.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4A23 28836 bytes
SHA-256: f5eed1d98b8bb238255e917971050fa062eb895317d63923a6b2f868f5d9dbec
font_01_sfnt_off00008b83.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8B83 18012 bytes
SHA-256: db6be32425767485114cb9000642ed63280f0807e0fe45793765b8e181fce2c0

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