PDF malware analysis — malicious · 2d6791fec5c3143d

MALICIOUS

PDF

34.2 KB Created: 2021-06-25 14:35:24 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-16

MD5: 7dd293823b856b9575e1351c69ad7745 SHA-1: 5032e135b4865240cc3efb760495bc4f843cf0f2 SHA-256: 2d6791fec5c3143d23dd9628d0239e773c3cd5f04a40861e490e9b18a32609ee

102 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment

This PDF document contains numerous external links, many of which are SEO-optimized PDFs hosted on astrospace.com.tw, and a primary link to netcdn.co. The document body and extracted URLs suggest a lure for users seeking free in-game items or hacks for popular games. The ML classifier strongly flagged this PDF as malicious, and the presence of a link farm indicates a potential attempt to drive traffic to malicious or unwanted content.

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 http://netcdn.co/app/431946152/how-to-get-roblox-animations-free-game-hack PDF link annotation
- https://www.astrospace.com.tw/upload/files/how-to-get-free-robux-for-real_GM431946152.pdfIn PDF document text
- https://www.astrospace.com.tw/upload/files/roblox-bux-free_GM431946152.pdfIn PDF document text
- https://www.astrospace.com.tw/upload/files/roblox-egg-hunt-cheat-sheet_GM431946152.pdfIn PDF document text
- https://www.astrospace.com.tw/upload/files/coin-master-hack-app-android_GM406889139.pdfIn PDF document text
- https://www.astrospace.com.tw/upload/files/roblox-avatar-tester_GM431946152.pdfIn PDF document text
- https://www.astrospace.com.tw/upload/files/pre-hacked-roblox_GM431946152.pdfIn PDF document text
- https://www.astrospace.com.tw/upload/files/how-to-download-minecraft-for-free-on-pc_GM479516143.pdfIn PDF document text
- https://www.astrospace.com.tw/upload/files/free-robux-no-human-verification-no-survey_GM431946152.pdfIn PDF document text
- https://www.astrospace.com.tw/upload/files/how-to-hack-a-minecraft-account_GM479516143.pdfIn PDF document text
- https://www.astrospace.com.tw/upload/files/pokemon-go-free-incense-2021_GM1094591345.pdfIn PDF document text
- https://www.astrospace.com.tw/upload/files/coin-master-free-coins-and-spins-2021_GM406889139.pdfIn PDF document text
- https://www.astrospace.com.tw/upload/files/get-free-spins-in-coin-master_GM406889139.pdfIn PDF document text
- https://www.astrospace.com.tw/upload/files/can-you-get-free-robux-on-roblox_GM431946152.pdfIn PDF document text
- https://www.astrospace.com.tw/upload/files/how-to-hack-into-someones-roblox-account_GM431946152.pdfIn PDF document text
- https://www.astrospace.com.tw/upload/files/coin-master-hack-online-cheat_GM406889139.pdfIn PDF document text
- https://www.astrospace.com.tw/upload/files/roblox-btools-cheat-tables_GM431946152.pdfIn PDF document text
- https://www.astrospace.com.tw/upload/files/how-do-i-get-free-robux-on-roblox_GM431946152.pdfIn PDF document text
- https://www.astrospace.com.tw/upload/files/get-free-food-in-coin-master_GM406889139.pdfIn PDF document text
- https://www.astrospace.com.tw/upload/files/minecraft-ps4-free_GM479516143.pdfIn PDF document text
- https://www.astrospace.com.tw/upload/files/coin-master-hack-activegamer_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
`font_00_sfnt_off0000305f.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x305F	21632 bytes
SHA-256: `f727ecd2ce5438b4757c756dd6569d88c1dac57aa38f402b73fe73f4724335a6`
`font_01_sfnt_off00005ffe.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x5FFE	19300 bytes
SHA-256: `a4c622ce8cd4b3b0b0567a0f6293c50f7b49c431e3dbbc8cdea6caaa87c53821`

Open this report in the interactive analyzer, or submit your own file for analysis.