PDF malware analysis — malicious · ce2b462ea1f629c2

MALICIOUS

PDF

35.2 KB Created: 2021-07-04 11:10:02 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-11-25

MD5: 59661dba6d5a054065974deae8586897 SHA-1: 3d0b1cbef0c9ac8b8f09497e6f2be9e465be6dc4 SHA-256: ce2b462ea1f629c2762af99be8f4ea76ff494b1f67434ad81eafb7b022bc3ab9

160 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

The PDF document contains a lure for a 'Free Robux Hack Generator' and includes multiple links to known malicious redirectors. The primary link, http://netcdn.tw/app/431946152/free-robux-hack-generator-game-hack, is identified as a malicious redirector. The document's structure and embedded URLs suggest an attempt to trick users into visiting malicious sites, likely for credential harvesting 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.tw/app/431946152/free-robux-hack-generator-game-hack In PDF document text
- https://ciptawiratirta.com/assets/CKImages/files/controls-for-free-admin-roblox_GM431946152.pdfIn PDF document text
- https://ciptawiratirta.com/assets/CKImages/files/roblox-hack-edit-leaderstats_GM431946152.pdfIn PDF document text
- https://ciptawiratirta.com/assets/CKImages/files/is-roblox-free-on-xbox_GM431946152.pdfIn PDF document text
- https://ciptawiratirta.com/assets/CKImages/files/hack-coin-master-xyz_GM406889139.pdfIn PDF document text
- https://ciptawiratirta.com/assets/CKImages/files/hole-in-the-wall-roblox-hack_GM431946152.pdfIn PDF document text
- https://ciptawiratirta.com/assets/CKImages/files/guuuddinfo-roblox-free_GM431946152.pdfIn PDF document text
- https://ciptawiratirta.com/assets/CKImages/files/how-to-hack-roblox_GM431946152.pdfIn PDF document text
- https://ciptawiratirta.com/assets/CKImages/files/how-to-hack-into-a-roblox-account-without-password_GM431946152.pdfIn PDF document text
- https://ciptawiratirta.com/assets/CKImages/files/sharkbite-roblox-hack_GM431946152.pdfIn PDF document text
- https://ciptawiratirta.com/assets/CKImages/files/free-robux-images_GM431946152.pdfIn PDF document text
- https://ciptawiratirta.com/assets/CKImages/files/free-spins-link-in-coin-master-2021_GM406889139.pdfIn PDF document text
- https://ciptawiratirta.com/assets/CKImages/files/if-you-have-builders-club-do-you-get-free-robux_GM431946152.pdfIn PDF document text
- https://ciptawiratirta.com/assets/CKImages/files/easiest-coin-master-hack_GM406889139.pdfIn PDF document text
- https://ciptawiratirta.com/assets/CKImages/files/universal-minecraft-converter-free_GM479516143.pdfIn PDF document text
- https://ciptawiratirta.com/assets/CKImages/files/free-limited-button-roblox_GM431946152.pdfIn PDF document text
- https://ciptawiratirta.com/assets/CKImages/files/pokemon-go-free-mewtwo-hack_GM1094591345.pdfIn PDF document text
- https://ciptawiratirta.com/assets/CKImages/files/roblox-undetected-cheat-engine_GM431946152.pdfIn PDF document text
- https://ciptawiratirta.com/assets/CKImages/files/free-robux-websites-that-actually-work-2021_GM431946152.pdfIn PDF document text
- https://ciptawiratirta.com/assets/CKImages/files/free-robux-no-human-verification-no-survey_GM431946152.pdfIn PDF document text
- https://ciptawiratirta.com/assets/CKImages/files/how-to-get-robux-using-cheat-engine-67_GM431946152.pdfIn PDF document text
- http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`font_00_sfnt_off00003221.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x3221	22552 bytes
SHA-256: `4cc825ebb041c408871885f9dbe1a12199f0a3a1e08318d0adb3d3ed9fc4234e`
`font_01_sfnt_off000064b8.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x64B8	18992 bytes
SHA-256: `b99d042f038cb0854217112ff22fa2c67a055dc81878343cfdd53606797f06ab`

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