Malicious PDF — malware analysis report

Static analysis result for SHA-256 8c6213052dfe0513…

MALICIOUS

PDF

33.9 KB Created: 2021-07-19 12:16:07 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: f9fcd751e03740bfaac23a206729bb87 SHA-1: aa3895750ebf2662973489627d99eb4853af3694 SHA-256: 8c6213052dfe05133211ec6e0069f3f55484e0b3c5d015e437231c42331b54f4
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

The PDF contains multiple links to known malicious redirectors, including one that impersonates a free game hack. The document body and embedded links suggest a lure to trick users into downloading or visiting malicious sites. The presence of embedded URLs and the ML classifier's high confidence score indicate a malicious intent to redirect users to potentially harmful content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9955

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.tw/app/479516143/is-minecraft-dungeons-free-game-hack In PDF document text
    • http://jandimotors.co.uk/images/how-do-i-get-minecraft-for-free_GM479516143.pdfIn PDF document text
    • http://jandimotors.co.uk/images/how-to-get-free-robux-2021_GM431946152.pdfIn PDF document text
    • http://jandimotors.co.uk/images/is-tiktok-free_GM835599320.pdfIn PDF document text
    • http://jandimotors.co.uk/images/free-tiktok-accounts-and-passwords_GM835599320.pdfIn PDF document text
    • http://jandimotors.co.uk/images/how-to-play-minecraft-for-free-on-pc_GM479516143.pdfIn PDF document text
    • http://jandimotors.co.uk/images/coin-master-free-spins-link-today-instagram_GM406889139.pdfIn PDF document text
    • http://jandimotors.co.uk/images/how-to-get-minecraft-for-free-on-ipad_GM479516143.pdfIn PDF document text
    • http://jandimotors.co.uk/images/how-to-get-free-robux-codes_GM431946152.pdfIn PDF document text
    • http://jandimotors.co.uk/images/how-do-you-get-minecraft-for-free_GM479516143.pdfIn PDF document text
    • http://jandimotors.co.uk/images/how-can-i-get-free-robux_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_off000030b9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x30B9 22432 bytes
SHA-256: 313efa687ebb67eac35311820ede33c81c8868a72436911f43ea30324a32dad8
font_01_sfnt_off000062b3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x62B3 18304 bytes
SHA-256: ce690126d5ef6938f3c3401fec90eb29b657d34ca06495398573f2a883063706

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