PDF malware analysis — malicious · 1d0475eb037e45d4

MALICIOUS

PDF

43.8 KB Created: 2021-05-12 03:03:18 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04

MD5: a7e868bd053adb7adc58bd0cecbb45cb SHA-1: 09a0cff1bd50c401cd10df62359cf5f58c40d421 SHA-256: 1d0475eb037e45d42aa89cbf97575b4d5d237b92f972d99fa081779037ab5e93

160 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

The PDF contains a critical heuristic firing for a malicious redirector link, specifically pointing to a 'free generator / game hack' lure. The document body, though partially corrupted, contains text related to obtaining free Robux and references the same malicious URL. This indicates an attempt to trick the user into visiting a malicious site, likely to download further malware or engage in a scam.

Machine Learning

Nyx PDF Classifier malicious score 0.9969

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/how-to-get-free-robux-without-verifying-game-hack In PDF document text
- https://amenergy.vn/public/upload/files/how-to-get-free-roebucks-on-roblox_GM431946152.pdfIn PDF document text
- https://amenergy.vn/public/upload/files/how-to-get-free-robux-without-human-verification_GM431946152.pdfIn PDF document text
- https://amenergy.vn/public/upload/files/roblox-font-free_GM431946152.pdfIn PDF document text
- https://amenergy.vn/public/upload/files/free-roblox-acc_GM431946152.pdfIn PDF document text
- https://amenergy.vn/public/upload/files/bloxpage-free-robux_GM431946152.pdfIn PDF document text
- https://amenergy.vn/public/upload/files/coin-master-spin-hack-trick_GM406889139.pdfIn PDF document text
- https://amenergy.vn/public/upload/files/coin-master-free-coins-link-2021-deutsch_GM406889139.pdfIn PDF document text
- https://amenergy.vn/public/upload/files/coin-master-332-apk-free-download_GM406889139.pdfIn PDF document text
- https://amenergy.vn/public/upload/files/how-can-i-get-robux_GM431946152.pdfIn PDF document text
- https://amenergy.vn/public/upload/files/free-coin-coin-master_GM406889139.pdfIn PDF document text
- https://amenergy.vn/public/upload/files/coin-master-fan-page-giveaway_GM406889139.pdfIn PDF document text
- https://amenergy.vn/public/upload/files/coin-master-hack-mod-apk-35-8_GM406889139.pdfIn PDF document text
- https://amenergy.vn/public/upload/files/how-to-get-free-robux-without-any-verification_GM431946152.pdfIn PDF document text
- https://amenergy.vn/public/upload/files/robux-free-c_GM431946152.pdfIn PDF document text
- https://amenergy.vn/public/upload/files/free-robux-generator-no-verification-2021_GM431946152.pdfIn PDF document text
- https://amenergy.vn/public/upload/files/free-coins-coin-master-2021_GM406889139.pdfIn PDF document text
- https://amenergy.vn/public/upload/files/free-spins-in-coin-master-2021_GM406889139.pdfIn PDF document text
- https://amenergy.vn/public/upload/files/ios-coin-master-hack_GM406889139.pdfIn PDF document text
- https://amenergy.vn/public/upload/files/coin-master-free-coins-and-spins-blogspot_GM406889139.pdfIn PDF document text
- https://amenergy.vn/public/upload/files/minecraft-java-free_GM479516143.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_003_off00004bcf.bin`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x4BCF	25256 bytes
SHA-256: `645de1356f40f875a58acecec16201f4c0266b1901521620e022bea56bca24de`
`font_01_sfnt_off000085a1.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x85A1	19368 bytes
SHA-256: `63de63cfc252acdf530e8b3b2390dbc20d855d9653817057ed506b48c41b68ab`

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