PDF malware analysis — malicious · eaee971f5e384a3a

MALICIOUS

PDF

42.9 KB Created: 2021-05-15 23:11:13 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-24

MD5: 22146ac75f88b7abf02f27dd32acad0b SHA-1: 35e3027f8a33c11e3aaba35f66c8b10d38b091be SHA-256: eaee971f5e384a3a6ddd5b03066bc9b0f3a46b9632f57550a7d2483b8e3c6f68

160 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment

The PDF document contains multiple links that redirect to malicious infrastructure, specifically promoting game hacks and free spins. The document body and embedded links strongly suggest a social engineering lure to drive traffic to potentially malicious sites. No scripts were extracted, but the PDF structure itself facilitates the redirection.

Machine Learning

Nyx PDF Classifier malicious score 0.9971

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/406889139/como-descargar-coin-master-hackeado-game-hack In PDF document text
- https://www.nordicstar.co.uk/uploads/files/files/freespincoin-masterlinkdownload_GM406889139.pdfIn PDF document text
- https://www.nordicstar.co.uk/uploads/files/files/free-vip-server-roblox_GM431946152.pdfIn PDF document text
- https://www.nordicstar.co.uk/uploads/files/files/coin-master-hack-download-apk_GM406889139.pdfIn PDF document text
- https://www.nordicstar.co.uk/uploads/files/files/free-robux-real-2021_GM431946152.pdfIn PDF document text
- https://www.nordicstar.co.uk/uploads/files/files/how-to-get-minecraft-bedrock-for-free-with-java_GM479516143.pdfIn PDF document text
- https://www.nordicstar.co.uk/uploads/files/files/coin-master-2021-free-spins-link-blogspot_GM406889139.pdfIn PDF document text
- https://www.nordicstar.co.uk/uploads/files/files/how-to-get-free-robux-without-verification-or-surveys_GM431946152.pdfIn PDF document text
- https://www.nordicstar.co.uk/uploads/files/files/free-24-7-minecraft-server_GM479516143.pdfIn PDF document text
- https://www.nordicstar.co.uk/uploads/files/files/free-coin-master-spins-no-human-verification_GM406889139.pdfIn PDF document text
- https://www.nordicstar.co.uk/uploads/files/files/legit-coin-master-hack-without-verification_GM406889139.pdfIn PDF document text
- https://www.nordicstar.co.uk/uploads/files/files/vip-roblox-free_GM431946152.pdfIn PDF document text
- https://www.nordicstar.co.uk/uploads/files/files/https-iosgodscom-topic-20214coinmasterhack_GM406889139.pdfIn PDF document text
- https://www.nordicstar.co.uk/uploads/files/files/free-coin-master-hacks-no-verification-or-survey_GM406889139.pdfIn PDF document text
- https://www.nordicstar.co.uk/uploads/files/files/how-to-hack-minecraft_GM479516143.pdfIn PDF document text
- https://www.nordicstar.co.uk/uploads/files/files/coin-master-daily-rewards_GM406889139.pdfIn PDF document text
- https://www.nordicstar.co.uk/uploads/files/files/how-to-earn-robux_GM431946152.pdfIn PDF document text
- https://www.nordicstar.co.uk/uploads/files/files/coin-master-free-daily-spins-2021_GM406889139.pdfIn PDF document text
- https://www.nordicstar.co.uk/uploads/files/files/get-me-robux-for-free_GM431946152.pdfIn PDF document text
- https://www.nordicstar.co.uk/uploads/files/files/coin-master-free-gifts_GM406889139.pdfIn PDF document text
- https://www.nordicstar.co.uk/uploads/files/files/links-for-coin-master-free-spins_GM406889139.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_off000049c6.bin`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x49C6	25792 bytes
SHA-256: `5e84649d64bd70d9edcae7553dbfd928511cb86af54be491b836d528d02c604f`
`font_01_sfnt_off0000848c.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x848C	18608 bytes
SHA-256: `3a154f5a4a32679d9f3e6ef86049faeafa20c75b70f76f1241b456008a739927`

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