Malicious PDF — malware analysis report

Static analysis result for SHA-256 1d1233eb80dadb39…

MALICIOUS

PDF

35.1 KB Created: 2021-06-29 17:57:01 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-16
MD5: 73f197dc6e491f654a23d3c735560697 SHA-1: 433b7b5516bd227c9100e2d53dc11eca44dd00c3 SHA-256: 1d1233eb80dadb39e533e865f7be3da2f5d50783e6b804bcfe7ea10d16199bfa
160 Risk Score

Malware Insights

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

This PDF document contains multiple links that redirect to malicious infrastructure, masquerading as game hacks and generators. The primary lure is a 'free generator / game hack' for Roblox, which is a common social engineering tactic. The document's structure and embedded URLs strongly suggest it is designed to lead users to potentially harmful websites, likely for further exploitation or malware delivery.

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/cpat-hacker-in-madcity-roblox-game-hack In PDF document text
    • http://perpustakaan-stikesmsb.com/repository/free-coin-master-cheats_GM406889139.pdfIn PDF document text
    • http://perpustakaan-stikesmsb.com/repository/free-robux-hack-proof_GM431946152.pdfIn PDF document text
    • http://perpustakaan-stikesmsb.com/repository/free-robux-no-human-verification-2021_GM431946152.pdfIn PDF document text
    • http://perpustakaan-stikesmsb.com/repository/how-to-get-free-items-in-roblox-2021_GM431946152.pdfIn PDF document text
    • http://perpustakaan-stikesmsb.com/repository/coin-master-hack-tool-access-online-generator_GM406889139.pdfIn PDF document text
    • http://perpustakaan-stikesmsb.com/repository/free-minecraft-survival-server_GM479516143.pdfIn PDF document text
    • http://perpustakaan-stikesmsb.com/repository/how-do-you-get-roblox-for-free_GM431946152.pdfIn PDF document text
    • http://perpustakaan-stikesmsb.com/repository/free-robux-mod_GM431946152.pdfIn PDF document text
    • http://perpustakaan-stikesmsb.com/repository/how-to-get-free-robux-hack-2021_GM431946152.pdfIn PDF document text
    • http://perpustakaan-stikesmsb.com/repository/coin-master-unlimited-spins-apk-free-download_GM406889139.pdfIn PDF document text
    • http://perpustakaan-stikesmsb.com/repository/legit-free-robux-generator_GM431946152.pdfIn PDF document text
    • http://perpustakaan-stikesmsb.com/repository/how-to-get-free-robux-on-computer-2021-easy_GM431946152.pdfIn PDF document text
    • http://perpustakaan-stikesmsb.com/repository/roblox-tablet-hack_GM431946152.pdfIn PDF document text
    • http://perpustakaan-stikesmsb.com/repository/free-roblox-money-codes-2021_GM431946152.pdfIn PDF document text
    • http://perpustakaan-stikesmsb.com/repository/free-robux-no-verify-2021_GM431946152.pdfIn PDF document text
    • http://perpustakaan-stikesmsb.com/repository/robux-free-2021_GM431946152.pdfIn PDF document text
    • http://perpustakaan-stikesmsb.com/repository/coin-master-free-spins-only_GM406889139.pdfIn PDF document text
    • http://perpustakaan-stikesmsb.com/repository/hiw-to-hack-miscreated-roblox_GM431946152.pdfIn PDF document text
    • http://perpustakaan-stikesmsb.com/repository/roblox-god-mode-hack-2021_GM431946152.pdfIn PDF document text
    • http://perpustakaan-stikesmsb.com/repository/how-to-hack-using-roblox-client-flying_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_off000030eb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x30EB 22360 bytes
SHA-256: e9764570ed1581ea0619f3107eba067cd55eca321d3837beeaccd59a1ba7a50b
font_01_sfnt_off0000629f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x629F 19608 bytes
SHA-256: 10812ad18d9a70f19f8660208364c0c6136bfe70a7e42a586b517edd40717a03

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