PDF malware analysis — malicious · 2634814788b095e8

MALICIOUS

PDF

49.2 KB Created: 2021-06-01 15:26:29 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-16

MD5: 09c04f241ab7e2982354fbe6b24bd068 SHA-1: 4ea72c0becbb97cadfd33f17617821121daff887 SHA-256: 2634814788b095e88af507c7fdbb14145a13516a27723a87443daf305afee95b

160 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment

The PDF contains embedded links that redirect to malicious infrastructure, specifically promoting a 'game hack' lure. The ML classifier also flagged this PDF as malicious. The presence of multiple redirector links suggests an attempt to lead the user to a potentially harmful site, likely for further exploitation or credential harvesting.

Machine Learning

Nyx PDF Classifier malicious score 0.9796

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 https://netcdn.xyz/app/431946152/build-and-survive-roblox-hack-game-hack In PDF document text
- https://hundt-druck.de/wp-content/uploads/fsqm-files/free-robux-no-scams-2021_GM431946152.pdfIn PDF document text
- https://hundt-druck.de/wp-content/uploads/fsqm-files/free-robux-generator-2021_GM431946152.pdfIn PDF document text
- https://hundt-druck.de/wp-content/uploads/fsqm-files/free-tiktok-comments_GM835599320.pdfIn PDF document text
- https://hundt-druck.de/wp-content/uploads/fsqm-files/i-got-hacked-on-roblox_GM431946152.pdfIn PDF document text
- https://hundt-druck.de/wp-content/uploads/fsqm-files/coin-master-links-free-spins_GM406889139.pdfIn PDF document text
- https://hundt-druck.de/wp-content/uploads/fsqm-files/free-minecraft-printables_GM479516143.pdfIn PDF document text
- https://hundt-druck.de/wp-content/uploads/fsqm-files/minecraft-free_GM479516143.pdfIn PDF document text
- https://hundt-druck.de/wp-content/uploads/fsqm-files/free-robux-no-human-verification-or-survey-2021_GM431946152.pdfIn PDF document text
- https://hundt-druck.de/wp-content/uploads/fsqm-files/free-robux-hack-october-2021_GM431946152.pdfIn PDF document text
- https://hundt-druck.de/wp-content/uploads/fsqm-files/roblox-glitches-and-cheats-for-lumber-tycoon-2_GM431946152.pdfIn PDF document text
- https://hundt-druck.de/wp-content/uploads/fsqm-files/roblox-hack-god-mode-jailbreak-with-cheat-engine_GM431946152.pdfIn PDF document text
- https://hundt-druck.de/wp-content/uploads/fsqm-files/how-to-download-minecraft-for-free_GM479516143.pdfIn PDF document text
- https://hundt-druck.de/wp-content/uploads/fsqm-files/how-to-get-minecraft-for-free-on-android_GM479516143.pdfIn PDF document text
- https://hundt-druck.de/wp-content/uploads/fsqm-files/free-tiktok-followers-no-downloads_GM835599320.pdfIn PDF document text
- https://hundt-druck.de/wp-content/uploads/fsqm-files/free-tiktok-bots_GM835599320.pdfIn PDF document text
- https://hundt-druck.de/wp-content/uploads/fsqm-files/roblox-free-gears-hat-faces-clothes-2_GM431946152.pdfIn PDF document text
- https://hundt-druck.de/wp-content/uploads/fsqm-files/free-minecraft-server-hosting-24-7_GM479516143.pdfIn PDF document text
- https://hundt-druck.de/wp-content/uploads/fsqm-files/how-to-get-hacking-skill-roblox-entry-point_GM431946152.pdfIn PDF document text
- https://hundt-druck.de/wp-content/uploads/fsqm-files/free-robux-without-verification-2021_GM431946152.pdfIn PDF document text
- https://hundt-druck.de/wp-content/uploads/fsqm-files/how-do-you-hack-roblox_GM431946152.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_004_off00005446.bin`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x5446	26596 bytes
SHA-256: `0a12ca6093a464ea3865a80238a56452d73aa12410a8ef796634e2e31cce63eb`
`font_01_sfnt_off00009260.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x9260	2880 bytes
SHA-256: `10d025f04f706eb71cdda4f99784df1b9ccb52e48080e43095e0398eaef6f132`
`font_02_sfnt_off00009c4b.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x9C4B	18732 bytes
SHA-256: `568c6538d3acb6daa1ff5f17a06298adc446c7b16624dba46455c2fc199157fe`

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