Malicious PDF — malware analysis report

Static analysis result for SHA-256 6f6841f3d973aabb…

MALICIOUS

PDF

45.7 KB Created: 2021-05-16 23:42:16 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-08-25
MD5: cea0c079a2895db145ccf4f381cec9d3 SHA-1: 7047f84de79695c83cf63d8accec031a8948e881 SHA-256: 6f6841f3d973aabb1f32ce15d297c722a9c8afb2703262eef7f63222a1265586
208 Risk Score

Malware Insights

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

This PDF document employs social engineering tactics, specifically a 'game hack' lure, to entice users into clicking a malicious URL. The document contains multiple links to redirector infrastructure, including the primary malicious URL, which likely serves as a gateway to further malicious content or phishing pages. The 'ClickFix' heuristic further supports the social engineering aspect, indicating the document attempts to trick users into executing commands.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9432

Heuristics 6

  • 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.
  • ClickFix social engineering attack high SE_CLICKFIX
    Document instructs the user to press Win+R or paste a command into a terminal — consistent with ClickFix attacks that bypass macro restrictions by tricking users into running malicious commands directly
  • Fake invoice / payment lure low SE_INVOICE_LURE
    Document contains invoice or payment language paired with an action verb — useful context when combined with link, macro, or attachment indicators
  • 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/479516143/is-windows-10-minecraft-free-game-hack In PDF document text
    • https://heimatverein-oberlangen.de/images/minecraft-aimbot_GM479516143.pdfIn PDF document text
    • https://heimatverein-oberlangen.de/images/how-to-get-more-robux_GM431946152.pdfIn PDF document text
    • https://heimatverein-oberlangen.de/images/free-spins-coins-coin-master_GM406889139.pdfIn PDF document text
    • https://heimatverein-oberlangen.de/images/strucid-aimbot_GM431946152.pdfIn PDF document text
    • https://heimatverein-oberlangen.de/images/pop-slots-free-vegas-casino-slots-machine-game-coin-master_GM406889139.pdfIn PDF document text
    • https://heimatverein-oberlangen.de/images/how-to-get-minecraft-coins-for-free_GM479516143.pdfIn PDF document text
    • https://heimatverein-oberlangen.de/images/hack-coin-master-apk-2021_GM406889139.pdfIn PDF document text
    • https://heimatverein-oberlangen.de/images/can-you-give-me-free-robux_GM431946152.pdfIn PDF document text
    • https://heimatverein-oberlangen.de/images/robux-game_GM431946152.pdfIn PDF document text
    • https://heimatverein-oberlangen.de/images/minecraft-free-no-download_GM479516143.pdfIn PDF document text
    • https://heimatverein-oberlangen.de/images/coin-master-hack-no-verify_GM406889139.pdfIn PDF document text
    • https://heimatverein-oberlangen.de/images/40-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • https://heimatverein-oberlangen.de/images/free-coins-coin-master_GM406889139.pdfIn PDF document text
    • https://heimatverein-oberlangen.de/images/how-to-get-free-robux-easy-hack_GM431946152.pdfIn PDF document text
    • https://heimatverein-oberlangen.de/images/free-attacks-on-coin-master_GM406889139.pdfIn PDF document text
    • https://heimatverein-oberlangen.de/images/roblox-skin-free_GM431946152.pdfIn PDF document text
    • https://heimatverein-oberlangen.de/images/free-face-roblox_GM431946152.pdfIn PDF document text
    • https://heimatverein-oberlangen.de/images/free-robux-hack-no-verification_GM431946152.pdfIn PDF document text
    • https://heimatverein-oberlangen.de/images/buy-robux-free_GM431946152.pdfIn PDF document text
    • https://heimatverein-oberlangen.de/images/free-coins-and-spins-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_off00004e8a.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4E8A 24316 bytes
SHA-256: 32baf3f8a993cfdb8e484b0d9db273e0fd6233f0db85f2e3d8831fa186e11138
font_01_sfnt_off000085a2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x85A2 2824 bytes
SHA-256: 61b3a573627d4f03d30684157e1627da3b4499cefab0fdf17b45999135b0250b
font_02_sfnt_off00008f49.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8F49 18524 bytes
SHA-256: 171145d693b5cd868e8a770b6e84adad06c35cb86194a4ae2474cf18c95c1c24

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