PDF malware analysis — malicious · adcc711250d7f783

MALICIOUS

PDF

44.6 KB Created: 2021-05-11 18:03:13 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-13

MD5: a51d3286628595f10ea01df63310a907 SHA-1: 093632759631a2cd8965ffdbb25225b49ec95a88 SHA-256: adcc711250d7f783f81af9eda72b360ef441257071edade93ec92598bfe562dc

102 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment

The PDF document contains numerous embedded URLs and a link farm, strongly suggesting it is designed to redirect users to malicious websites. The document body and extracted URLs indicate a lure for game-related hacks and cheats, likely leading to malware downloads or phishing. The ML classifier also flagged this PDF as malicious with high confidence.

Machine Learning

Nyx PDF Classifier malicious score 0.9980

Heuristics 4

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
External URI info PDF_URI

PDF contains an external URL action
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/coin-master-spin-and-coins-free-game-hack PDF link annotation
- https://www.psychotherapie-naturheilpraxis.de/images/minecraft-hacked-apk_GM479516143.pdfIn PDF document text
- https://www.psychotherapie-naturheilpraxis.de/images/free-spins-coin-master-2021_GM406889139.pdfIn PDF document text
- https://www.psychotherapie-naturheilpraxis.de/images/free-roblox-accounts-with-robux-that-work-2021_GM431946152.pdfIn PDF document text
- https://www.psychotherapie-naturheilpraxis.de/images/free-robux-generator-2021_GM431946152.pdfIn PDF document text
- https://www.psychotherapie-naturheilpraxis.de/images/no-human-verification_GM431946152.pdfIn PDF document text
- https://www.psychotherapie-naturheilpraxis.de/images/coin-master-free-cards-and-spin-link_GM406889139.pdfIn PDF document text
- https://www.psychotherapie-naturheilpraxis.de/images/coin-master-free-coins-and-spins-today_GM406889139.pdfIn PDF document text
- https://www.psychotherapie-naturheilpraxis.de/images/coin-master-hack-https-coinms-net_GM406889139.pdfIn PDF document text
- https://www.psychotherapie-naturheilpraxis.de/images/roblox-got-talent-piano-hack_GM431946152.pdfIn PDF document text
- https://www.psychotherapie-naturheilpraxis.de/images/does-coin-master-hack-work_GM406889139.pdfIn PDF document text
- https://www.psychotherapie-naturheilpraxis.de/images/how-to-get-roebucks-on-roblox_GM431946152.pdfIn PDF document text
- https://www.psychotherapie-naturheilpraxis.de/images/coin-master-free-spin-app-iphone_GM406889139.pdfIn PDF document text
- https://www.psychotherapie-naturheilpraxis.de/images/free-robux-generator-no-survey_GM431946152.pdfIn PDF document text
- https://www.psychotherapie-naturheilpraxis.de/images/coin-master-cheats-free-spins_GM406889139.pdfIn PDF document text
- https://www.psychotherapie-naturheilpraxis.de/images/how-to-get-free-spins-on-coin-master_GM406889139.pdfIn PDF document text
- https://www.psychotherapie-naturheilpraxis.de/images/coin-master-free-coins-and-spins-link_GM406889139.pdfIn PDF document text
- https://www.psychotherapie-naturheilpraxis.de/images/minecraft-free-apk-java-edition_GM479516143.pdfIn PDF document text
- https://www.psychotherapie-naturheilpraxis.de/images/how-to-earn-robux-by-playing-games_GM431946152.pdfIn PDF document text
- https://www.psychotherapie-naturheilpraxis.de/images/master-8-ball-pool-free-coins_GM406889139.pdfIn PDF document text
- https://www.psychotherapie-naturheilpraxis.de/images/free-robux-discord_GM431946152.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_off00004a9a.bin`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x4A9A	30096 bytes
SHA-256: `4fc6e99a299bd765f88aa16a3a6fa581bcde981033bc99dd452bec15785a7727`
`font_01_sfnt_off00008ce1.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x8CE1	18060 bytes
SHA-256: `aba7dcfd42a0f74c9e892866c2c78c20b6cae4d7af540321f27c32cc6aee9396`

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