PDF malware analysis — malicious · 8256560600c15f74

MALICIOUS

PDF

46.8 KB Created: 2021-05-10 15:03:03 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-11-20

MD5: a20651f85f208915b4c07b9afcdac8e2 SHA-1: b683d51c3b43452211f1afafaa314f9c1a67d360 SHA-256: 8256560600c15f74f8e698a5797dd6ad1fe14e13f44266840cda74dc22f71e89

180 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment

This PDF document employs a lure of free game hacks and currency to entice users. It contains multiple embedded URLs, including a primary redirector at `https://netcdn.xyz/app/431946152/op-rewards-robux-game-hack`, which is known to link to malicious content. The document body and heuristics indicate a phishing or scam attempt, likely to lead users to further malicious sites or downloads.

Machine Learning

Nyx PDF Classifier malicious score 0.8948

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.
Callback phishing phone lure medium SE_CALLBACK_LURE

Document asks the user to call a phone number in billing, refund, subscription, fraud, or security context — consistent with callback phishing or tech-support scam patterns. Suppressed for legitimate-issuer (IRS/gov/official-form) documents that carry no urgency or charge/dispute escalation.
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/op-rewards-robux-game-hack In PDF document text
- http://e-learningman14jakarta.com/__statics/gudangsoal/files/coin-master-100-spin-slot_GM406889139.pdfIn PDF document text
- http://e-learningman14jakarta.com/__statics/gudangsoal/files/wizard-hacks_GM479516143.pdfIn PDF document text
- http://e-learningman14jakarta.com/__statics/gudangsoal/files/how-to-get-free-robux-without-human-verification-2021_GM431946152.pdfIn PDF document text
- http://e-learningman14jakarta.com/__statics/gudangsoal/files/minecraft-free-unblocked_GM479516143.pdfIn PDF document text
- http://e-learningman14jakarta.com/__statics/gudangsoal/files/minecraft-free-apk_GM479516143.pdfIn PDF document text
- http://e-learningman14jakarta.com/__statics/gudangsoal/files/how-to-get-free-robux-easy_GM431946152.pdfIn PDF document text
- http://e-learningman14jakarta.com/__statics/gudangsoal/files/hack-coin-master-app_GM406889139.pdfIn PDF document text
- http://e-learningman14jakarta.com/__statics/gudangsoal/files/haktuts-coin-master-free-spins_GM406889139.pdfIn PDF document text
- http://e-learningman14jakarta.com/__statics/gudangsoal/files/roblox-tix-generator_GM431946152.pdfIn PDF document text
- http://e-learningman14jakarta.com/__statics/gudangsoal/files/free-spin-coin-master-2021_GM406889139.pdfIn PDF document text
- http://e-learningman14jakarta.com/__statics/gudangsoal/files/roblox-promo-codes-free-robux_GM431946152.pdfIn PDF document text
- http://e-learningman14jakarta.com/__statics/gudangsoal/files/free-daily-spins-coin-master-2021_GM406889139.pdfIn PDF document text
- http://e-learningman14jakarta.com/__statics/gudangsoal/files/free-roblox-hack_GM431946152.pdfIn PDF document text
- http://e-learningman14jakarta.com/__statics/gudangsoal/files/free-robux-no-human-verification-generator_GM431946152.pdfIn PDF document text
- http://e-learningman14jakarta.com/__statics/gudangsoal/files/how-to-earn-robux-for-free-2021_GM431946152.pdfIn PDF document text
- http://e-learningman14jakarta.com/__statics/gudangsoal/files/how-to-get-free-roblox-hair_GM431946152.pdfIn PDF document text
- http://e-learningman14jakarta.com/__statics/gudangsoal/files/master-coin-hack-game_GM406889139.pdfIn PDF document text
- http://e-learningman14jakarta.com/__statics/gudangsoal/files/bloxawards-com-earn-free-robux_GM431946152.pdfIn PDF document text
- http://e-learningman14jakarta.com/__statics/gudangsoal/files/free-robux-codes-2021-not-used_GM431946152.pdfIn PDF document text
- http://e-learningman14jakarta.com/__statics/gudangsoal/files/how-to-hack-to-get-robux_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
`font_00_sfnt_off00004c78.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x4C78	25508 bytes
SHA-256: `667fd71721788a8d6ad258af41dfb8dc9a59bbd89d51d73bbb963f0651b4cd71`
`font_01_sfnt_off000087c5.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x87C5	3512 bytes
SHA-256: `d2fbe445e4228ea2e3d75d3e8f0f84124f9dd8d3d0cf2c6e4e63bcca92f2519f`
`font_02_sfnt_off00009359.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x9359	18592 bytes
SHA-256: `61fcf6890a53ac437d28a0a1b955c1ae9fc36ec45f89f4a8c20bebee047e4314`

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