Malicious PDF — malware analysis report

Static analysis result for SHA-256 fe445317ac5231c9…

MALICIOUS

PDF

35.1 KB Created: 2021-06-19 01:04:14 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-08-25
MD5: abeb452933161afd61ead2810ab7cff1 SHA-1: 60f5f32a20ffa9cd5794bef28e865b68dbda570b SHA-256: fe445317ac5231c96a87353a4c99669bb89dba6ec7919514b94ee61554e172e9
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links to redirector infrastructure, specifically advertising free game hacks and tickets for Roblox. The heuristic PDF_MALICIOUS_REDIRECTOR_LINK indicates these links point to known malicious infrastructure. The document body and embedded URLs suggest a social engineering lure to entice users to click through to potentially malicious sites. No scripts were extracted, but the primary attack pattern involves directing users to external, likely malicious, content.

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/free-tickets-roblox-game-hack In PDF document text
    • https://www.deg91.com/upload/files/how-to-get-free-unlimited-coins-in-coin-master_GM406889139.pdfIn PDF document text
    • https://www.deg91.com/upload/files/hacks-para-roblox_GM431946152.pdfIn PDF document text
    • https://www.deg91.com/upload/files/free-spins-coin-master-unlimited_GM406889139.pdfIn PDF document text
    • https://www.deg91.com/upload/files/kuso-icu-roblox-hack_GM431946152.pdfIn PDF document text
    • https://www.deg91.com/upload/files/coin-master-free-spin-link-new_GM406889139.pdfIn PDF document text
    • https://www.deg91.com/upload/files/free-robux-without-any-verification_GM431946152.pdfIn PDF document text
    • https://www.deg91.com/upload/files/how-to-get-a-cape-in-minecraft-for-free_GM479516143.pdfIn PDF document text
    • https://www.deg91.com/upload/files/minecraft-hacks-115-2_GM479516143.pdfIn PDF document text
    • https://www.deg91.com/upload/files/free-coin-master-credit_GM406889139.pdfIn PDF document text
    • https://www.deg91.com/upload/files/info-roblox-com-robux_GM431946152.pdfIn PDF document text
    • https://www.deg91.com/upload/files/minecraft-marketplace-free_GM479516143.pdfIn PDF document text
    • https://www.deg91.com/upload/files/install-free-game-coin-master_GM406889139.pdfIn PDF document text
    • https://www.deg91.com/upload/files/coin-master-hack-spins-free_GM406889139.pdfIn PDF document text
    • https://www.deg91.com/upload/files/roblox-help-free-robux_GM431946152.pdfIn PDF document text
    • https://www.deg91.com/upload/files/how-to-get-free-characters-on-roblox_GM431946152.pdfIn PDF document text
    • https://www.deg91.com/upload/files/how-to-get-free-robux-for-real_GM431946152.pdfIn PDF document text
    • https://www.deg91.com/upload/files/free-spins-coins-coin-master_GM406889139.pdfIn PDF document text
    • https://www.deg91.com/upload/files/how-do-i-get-robux-on-roblox_GM431946152.pdfIn PDF document text
    • https://www.deg91.com/upload/files/how-do-you-get-free-robux-2021_GM431946152.pdfIn PDF document text
    • https://www.deg91.com/upload/files/play-roblox-free-online-unblocked_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_off000031f5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x31F5 22584 bytes
SHA-256: 87489381054f3ec34f2680593eefca54f17b05be80f958af91e80087be916ff2
font_01_sfnt_off0000643a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x643A 19044 bytes
SHA-256: 4baa922f6605990988dcef771d9ff0522187d3ae928fe4d77ca177704f3aafab

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