PDF malware analysis — malicious · 6886e454256377f1

MALICIOUS

PDF

36.9 KB Created: 2021-05-21 21:29:51 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-11-23

MD5: d79f542ff96e84654360cc39c2f72af5 SHA-1: d6f2fbf68158423b83183dd22d88f09e7b7fe549 SHA-256: 6886e454256377f10f4fef823f2115c6769bd3dca222eedcaf122db143578988

200 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment

The PDF contains multiple links to malicious redirectors, masquerading as free game hacks and account generators. One primary URL, https://netcdn.xyz/app/479516143/minecraft-java-free-account-game-hack, is identified as a lure for game hacks. The document also contains a call-to-action button and a remote support lure, suggesting an attempt to trick the user into downloading further malicious content or granting remote access. No scripts were extracted, but the PDF structure and embedded URLs strongly indicate a phishing or social engineering attack.

Machine Learning

Nyx PDF Classifier malicious score 0.9447

Heuristics 5

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.
Remote-support tool lure high SE_REMOTE_SUPPORT_LURE

Document instructs the user to install, open, or connect with a remote-support tool such as AnyDesk, TeamViewer, Quick Assist, or ScreenConnect — high-risk in an unsolicited document
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/minecraft-java-free-account-game-hack In PDF document text
- http://balibetonmandiri.com/new/public/ckfinder/userfiles/files/hack-xp-net-generators-coin-master_GM406889139.pdfIn PDF document text
- http://balibetonmandiri.com/new/public/ckfinder/userfiles/files/free-robux-no-generator_GM431946152.pdfIn PDF document text
- http://balibetonmandiri.com/new/public/ckfinder/userfiles/files/earn-robux-by-watching-ads_GM431946152.pdfIn PDF document text
- http://balibetonmandiri.com/new/public/ckfinder/userfiles/files/get-free-robux-without-doing-anything_GM431946152.pdfIn PDF document text
- http://balibetonmandiri.com/new/public/ckfinder/userfiles/files/free-robux-cards_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
`stream_002_off000032f1.bin`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x32F1	28884 bytes
SHA-256: `60c9a21b38a8cc764b92920075adf7605fb8675e902a38d94c1ef3b7ea551e16`
`font_01_sfnt_off00006f84.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x6F84	18128 bytes
SHA-256: `787ae5aa2fe8ee3e05b40f55ac2adb21d77115e18bda7782f632936ac93a1380`

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