PDF malware analysis — malicious · eb572389c59163c3

MALICIOUS

PDF

45.5 KB Created: 2021-05-14 23:27:10 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-23

MD5: 36383a84d863ba1d04a3c8ca8dd3e80a SHA-1: 35258e275d06a11a707ef4ff7d39fe7048916b2c SHA-256: eb572389c59163c3b613354b6e9f46665d6eed610d27dfc539a8883abf113769

160 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment

This PDF file contains multiple links to known malicious redirectors, disguised as offers for free game-related content like 'game hacks' or 'free spins'. The document body and embedded URLs strongly suggest a phishing or scam attempt, likely to lead users to a site that may host further malware or exploit kits. No scripts were extracted from this sample, but the presence of malicious links and the lure indicate a high likelihood of a phishing or social engineering attack.

Machine Learning

Nyx PDF Classifier malicious score 0.9507

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/479516143/is-minecraft-free-on-switch-game-hack In PDF document text
- https://www.e-learning.mtsn-1-pasangkayu.sch.id/__statics/gudangsoal/files/free-coin-master-spins-2021-link_GM406889139.pdfIn PDF document text
- https://www.e-learning.mtsn-1-pasangkayu.sch.id/__statics/gudangsoal/files/free-gfx-roblox_GM431946152.pdfIn PDF document text
- https://www.e-learning.mtsn-1-pasangkayu.sch.id/__statics/gudangsoal/files/free-spins-coin-master_GM406889139.pdfIn PDF document text
- https://www.e-learning.mtsn-1-pasangkayu.sch.id/__statics/gudangsoal/files/earn-robux-com_GM431946152.pdfIn PDF document text
- https://www.e-learning.mtsn-1-pasangkayu.sch.id/__statics/gudangsoal/files/free-400-spins-coin-master_GM406889139.pdfIn PDF document text
- https://www.e-learning.mtsn-1-pasangkayu.sch.id/__statics/gudangsoal/files/coin-master-hacks_GM406889139.pdfIn PDF document text
- https://www.e-learning.mtsn-1-pasangkayu.sch.id/__statics/gudangsoal/files/win-free-robux_GM431946152.pdfIn PDF document text
- https://www.e-learning.mtsn-1-pasangkayu.sch.id/__statics/gudangsoal/files/coin-master-pc-hack-tool_GM406889139.pdfIn PDF document text
- https://www.e-learning.mtsn-1-pasangkayu.sch.id/__statics/gudangsoal/files/free-spin-coin-master-2021-link_GM406889139.pdfIn PDF document text
- https://www.e-learning.mtsn-1-pasangkayu.sch.id/__statics/gudangsoal/files/i-didnt-get-my-free-spins-in-coin-master_GM406889139.pdfIn PDF document text
- https://www.e-learning.mtsn-1-pasangkayu.sch.id/__statics/gudangsoal/files/claim-gg-free-robux_GM431946152.pdfIn PDF document text
- https://www.e-learning.mtsn-1-pasangkayu.sch.id/__statics/gudangsoal/files/free-spins-coin-master-links-2021_GM406889139.pdfIn PDF document text
- https://www.e-learning.mtsn-1-pasangkayu.sch.id/__statics/gudangsoal/files/coin-master-free-spins-hack-but-no-surveys_GM406889139.pdfIn PDF document text
- https://www.e-learning.mtsn-1-pasangkayu.sch.id/__statics/gudangsoal/files/buxblast-com-robux_GM431946152.pdfIn PDF document text
- https://www.e-learning.mtsn-1-pasangkayu.sch.id/__statics/gudangsoal/files/free-minecraft-realm-codes_GM479516143.pdfIn PDF document text
- https://www.e-learning.mtsn-1-pasangkayu.sch.id/__statics/gudangsoal/files/roblox-re_GM431946152.pdfIn PDF document text
- https://www.e-learning.mtsn-1-pasangkayu.sch.id/__statics/gudangsoal/files/free-card-collection-in-coin-master_GM406889139.pdfIn PDF document text
- https://www.e-learning.mtsn-1-pasangkayu.sch.id/__statics/gudangsoal/files/free-spins-coin-master-hack_GM406889139.pdfIn PDF document text
- https://www.e-learning.mtsn-1-pasangkayu.sch.id/__statics/gudangsoal/files/how-to-get-minecraft-for-free-on-phone_GM479516143.pdfIn PDF document text
- https://www.e-learning.mtsn-1-pasangkayu.sch.id/__statics/gudangsoal/files/robux-com-free_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_off00004fde.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x4FDE	24556 bytes
SHA-256: `08c35424354c130bb8d936ab4d1712d5a8542bd42002071629498a9c81c6ae26`
`font_01_sfnt_off000086f4.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x86F4	2860 bytes
SHA-256: `89ec581cebd0e90262805b5db309de4686eceb75a25d429085148d13353d0453`
`font_02_sfnt_off000090cc.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x90CC	17896 bytes
SHA-256: `da2ff63c2c6efe847bf2f560eba074f8e9a052981825778b960d82d1bfcd49f3`

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