PDF malware analysis — malicious · 602524c5cb8170c9

MALICIOUS

PDF

47.8 KB Created: 2021-06-03 22:58:02 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-11-20

MD5: 72bd5f208d508a06c6a62fc62656a9df SHA-1: 1dcfcaa43013a9dea5d3ed5c51c316f363fbc153 SHA-256: 602524c5cb8170c9dac1a9e831b48fd3c45741a9850ffb1bd2a2a6c3682279e6

220 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment

The PDF contains numerous links to websites that appear to be part of a link farm, designed to attract users with lures related to game hacks and free currency. One prominent URL, https://netcdn.online/app/406889139/moonactive-free-spins-2021-game-hack, is flagged as a malicious redirector. The document's structure and the nature of the links suggest an attempt to drive traffic to potentially malicious sites, possibly for phishing or distributing further malware.

Machine Learning

Nyx PDF Classifier malicious score 0.9769

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.
Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM

Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
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.online/app/406889139/moonactive-free-spins-2021-game-hack In PDF document text
- https://library.institutpendidikan.ac.id/repository/how-do-u-get-robux-for-free-2021_GM431946152.pdfIn PDF document text
- https://library.institutpendidikan.ac.id/repository/free-robux-generator-no-verification_GM431946152.pdfIn PDF document text
- https://library.institutpendidikan.ac.id/repository/free-robux-link_GM431946152.pdfIn PDF document text
- https://library.institutpendidikan.ac.id/repository/roblox-hack-unlimited-robux_GM431946152.pdfIn PDF document text
- https://library.institutpendidikan.ac.id/repository/free-robux-websites-that-actually-work_GM431946152.pdfIn PDF document text
- https://library.institutpendidikan.ac.id/repository/coin-master-mod-apk-latest-hack-with-unlimited-free-spins_GM406889139.pdfIn PDF document text
- https://library.institutpendidikan.ac.id/repository/free-coins-spins-on-coin-master_GM406889139.pdfIn PDF document text
- https://library.institutpendidikan.ac.id/repository/how-to-hack-a-roblox-account-2021_GM431946152.pdfIn PDF document text
- https://library.institutpendidikan.ac.id/repository/coin-master-hack-activegamer_GM406889139.pdfIn PDF document text
- https://library.institutpendidikan.ac.id/repository/pubg-uc-to-pkr_GM1330123889.pdfIn PDF document text
- https://library.institutpendidikan.ac.id/repository/latest-coin-master-free-spins-link_GM406889139.pdfIn PDF document text
- https://library.institutpendidikan.ac.id/repository/how-to-add-mods-to-minecraft-pe_GM479516143.pdfIn PDF document text
- https://library.institutpendidikan.ac.id/repository/dailyrobux_GM431946152.pdfIn PDF document text
- https://library.institutpendidikan.ac.id/repository/hacked-roblox-accounts-list_GM431946152.pdfIn PDF document text
- https://library.institutpendidikan.ac.id/repository/coin-master-hack-spin-link_GM406889139.pdfIn PDF document text
- https://library.institutpendidikan.ac.id/repository/tiktok-minecraft-hacks_GM479516143.pdfIn PDF document text
- https://library.institutpendidikan.ac.id/repository/coin-master-free-spins-and-coins-today-gift-reward_GM406889139.pdfIn PDF document text
- https://library.institutpendidikan.ac.id/repository/como-generar-coin-master-free-spins_GM406889139.pdfIn PDF document text
- https://library.institutpendidikan.ac.id/repository/coin-master-golden-card-hack_GM406889139.pdfIn PDF document text
- https://library.institutpendidikan.ac.id/repository/free-minecraft-skins-xbox-one_GM479516143.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_off000053c7.bin`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x53C7	25608 bytes
SHA-256: `e78b3c7ddf32253250ae5433075bffca4d7ba541176a80e42981d4ffb87a8e9c`
`font_01_sfnt_off00008dac.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x8DAC	2880 bytes
SHA-256: `b053084cafd01c649462d87667ba56c569d6480ce60e7d20ae57ef6124cf178e`
`font_02_sfnt_off00009797.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x9797	18400 bytes
SHA-256: `92ca299d7509cbf0a27ca4bb2455c3f9e24f9e6a05476c47560d59a1eb9d663e`

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