PDF malware analysis — malicious · 3dbcaf2563d74315

MALICIOUS

PDF

40.6 KB Created: 2021-05-23 05:08:15 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-08-25

MD5: 5538f224d44322778a71185defdf71ef SHA-1: 84c2f9d4cb177dcd450af87f3c0767b4c078400e SHA-256: 3dbcaf2563d743153c5a79833606dff4b5acb4a6b8c0a15b086afdc769e8a5d3

200 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment

The PDF document contains multiple links to known malicious redirectors, masquerading as game hacks and free generators. It also displays a fake CAPTCHA prompt to trick users into interacting with the malicious content. The primary malicious URL identified is https://netcdn.xyz/app/406889139/coin-master-daily-free-spins-and-coins-game-hack, which is associated with redirector infrastructure.

Machine Learning

Nyx PDF Classifier malicious score 0.7768

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.
Fake CAPTCHA / human verification prompt high SE_FAKE_CAPTCHA

Document displays a fake CAPTCHA or human-verification prompt — used to trick users into running commands or pressing keyboard shortcuts
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/406889139/coin-master-daily-free-spins-and-coins-game-hack In PDF document text
- http://elearning.man1sintang.sch.id/__statics/gudangsoal/files/minecraft-hack-2021_GM479516143.pdfIn PDF document text
- http://elearning.man1sintang.sch.id/__statics/gudangsoal/files/minecraft-free-play-no-download_GM479516143.pdfIn PDF document text
- http://elearning.man1sintang.sch.id/__statics/gudangsoal/files/free-spin-in-coin-master_GM406889139.pdfIn PDF document text
- http://elearning.man1sintang.sch.id/__statics/gudangsoal/files/coin-master-free-spin-and-coins-links_GM406889139.pdfIn PDF document text
- http://elearning.man1sintang.sch.id/__statics/gudangsoal/files/tiktok-fans-free_GM835599320.pdfIn PDF document text
- http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`stream_002_off0000329f.bin`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x329F	29312 bytes
SHA-256: `a162c5f225168602435bb417b22105913ee132d0164f83bd2d5374d230956166`
`font_01_sfnt_off00007036.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x7036	3560 bytes
SHA-256: `c953d730e49f69c7d62e02a926729ae4a31de13d9a976dc4a95b39cf47066c93`
`font_02_sfnt_off00007cbc.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x7CBC	18480 bytes
SHA-256: `323fea871d3154f9ddf991b22fd859b77165b4ee4e2d03de0fe4666202988bbb`

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