Analysis
- max time kernel
151s - max time network
47s - platform
windows7_x64 - resource
win7-20220414-en - submitted
01/06/2022, 16:21
Static task
static1
Behavioral task
behavioral1
Sample
star.exe
Resource
win7-20220414-en
0 signatures
0 seconds
Behavioral task
behavioral2
Sample
star.exe
Resource
win10v2004-20220414-en
0 signatures
0 seconds
General
- Target star.exe
- Size 360KB
- Sample220601-tttmtadhcp
- SHA256 59e0ab333060b4e510db5d36d87f0fe267ab66b0881955649b06d91d6dd2d486
- MD5 2f121145ea11b36f9ade0cb8f319e40a
- SHA1 d68049989ce98f71f6a562e439f6b6f0a165f003
- SHA512 9211a74cfa23c70c6ace8bd168ecbe1bb4a06d2e03b5adff5546115137b6ce849d3e41337581123d48e5082319f507d8f2d274621317fada182530e4a0abb6c7
- MD5 SHA1 SHA512
Score
10/10
Malware Config
Extracted
Path
-
C:\read-me.txt
-
globeimposter
Ransom Note
- All your files are Encrypted! For data recovery needs decryptor. How to buy decryptor: ---------------------------------------------------------------------------------------- | 1. Download Tor browser - https://www.torproject.org/ and install it. | 2. Open link in TOR browser - http://mmeeiix2ejdwkmseycljetmpiwebdvgjts75c63camjofn2cjdoulzqd.onion/?STAHYJUHGFV | 3. Create Ticket ---------------------------------------------------------------------------------------- Note! This link is available via Tor Browser only. ------------------------------------------------------------ or http://helpqvrg3cc5mvb3.onion/ Your ID ���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
URLs
-
http://mmeeiix2ejdwkmseycljetmpiwebdvgjts75c63camjofn2cjdoulzqd.onion/?STAHYJUHGFV
-
http://helpqvrg3cc5mvb3.onion/
Signatures
- GlobeImposter
GlobeImposter is a ransomware first seen in 2017.
- Modifies extensions of user files 2 IoCs
Ransomware generally changes the extension on encrypted files.
description ioc Process File renamed C:\Users\Admin\Pictures\ResolveOpen.raw => C:\Users\Admin\Pictures\ResolveOpen.raw.xls star.exe File renamed C:\Users\Admin\Pictures\UnblockSplit.png => C:\Users\Admin\Pictures\UnblockSplit.png.xls star.exe - Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
- Adds Run key to start application 2 TTPs 2 IoCs
description ioc Process Key created \REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\Software\Microsoft\Windows\CurrentVersion\RunOnce star.exe Set value (str) \REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\Software\Microsoft\Windows\CurrentVersion\RunOnce\BrowserUpdateCheck = "C:\\Users\\Admin\\AppData\\Local\\star.exe" star.exe - Drops desktop.ini file(s) 26 IoCs
description ioc Process File opened for modification C:\Users\Admin\Favorites\Links\desktop.ini star.exe File opened for modification C:\Users\Admin\Desktop\desktop.ini star.exe File opened for modification C:\Users\Public\Videos\Sample Videos\desktop.ini star.exe File opened for modification C:\Users\Public\Pictures\desktop.ini star.exe File opened for modification C:\Users\Public\Music\Sample Music\desktop.ini star.exe File opened for modification C:\Users\Public\Desktop\desktop.ini star.exe File opened for modification C:\Users\Admin\Favorites\Links for United States\desktop.ini star.exe File opened for modification C:\Users\Admin\Videos\desktop.ini star.exe File opened for modification C:\Users\Admin\Searches\desktop.ini star.exe File opened for modification C:\Users\Admin\Links\desktop.ini star.exe File opened for modification C:\Users\Public\desktop.ini star.exe File opened for modification C:\Users\Public\Recorded TV\desktop.ini star.exe File opened for modification C:\Users\Public\Recorded TV\Sample Media\desktop.ini star.exe File opened for modification C:\Users\Public\Music\desktop.ini star.exe File opened for modification C:\Users\Public\Documents\desktop.ini star.exe File opened for modification C:\Users\Admin\Downloads\desktop.ini star.exe File opened for modification C:\Users\Admin\Documents\desktop.ini star.exe File opened for modification C:\Users\Public\Pictures\Sample Pictures\desktop.ini star.exe File opened for modification C:\Users\Public\Libraries\desktop.ini star.exe File opened for modification C:\Users\Admin\Favorites\desktop.ini star.exe File opened for modification C:\Users\Admin\Contacts\desktop.ini star.exe File opened for modification C:\Users\Public\Videos\desktop.ini star.exe File opened for modification C:\Users\Public\Downloads\desktop.ini star.exe File opened for modification C:\Users\Admin\Saved Games\desktop.ini star.exe File opened for modification C:\Users\Admin\Pictures\desktop.ini star.exe File opened for modification C:\Users\Admin\Music\desktop.ini star.exe - Suspicious use of SetThreadContext 1 IoCs
description pid Process procid_target PID 316 set thread context of 320 316 star.exe 30 - Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
- Creates scheduled task(s) 1 TTPs 1 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
pid Process 1208 schtasks.exe - Suspicious use of WriteProcessMemory 11 IoCs
description pid Process procid_target PID 316 wrote to memory of 1208 316 star.exe 28 PID 316 wrote to memory of 1208 316 star.exe 28 PID 316 wrote to memory of 1208 316 star.exe 28 PID 316 wrote to memory of 1208 316 star.exe 28 PID 316 wrote to memory of 320 316 star.exe 30 PID 316 wrote to memory of 320 316 star.exe 30 PID 316 wrote to memory of 320 316 star.exe 30 PID 316 wrote to memory of 320 316 star.exe 30 PID 316 wrote to memory of 320 316 star.exe 30 PID 316 wrote to memory of 320 316 star.exe 30 PID 316 wrote to memory of 320 316 star.exe 30
Processes
-
C:\Users\Admin\AppData\Local\Temp\star.exe"C:\Users\Admin\AppData\Local\Temp\star.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:316 -
C:\Windows\SysWOW64\schtasks.exe"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\jVYbanglCI" /XML "C:\Users\Admin\AppData\Local\Temp\tmp755F.tmp"2⤵
- Creates scheduled task(s)
PID:1208
-
-
C:\Users\Admin\AppData\Local\Temp\star.exe"{path}"2⤵
- Modifies extensions of user files
- Adds Run key to start application
- Drops desktop.ini file(s)
PID:320
-
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
- Path C:\Users\Admin\AppData\Local\Temp\tmp755F.tmp
- Size 1KB
- SHA256 ef8edea78648042891efe5100ec476a326efe4202bcd6d8e0c2c20cac7ac7b47
- MD5 27cb4ca940005c867da111b7fc422907
- SHA1 bee062cdbafd01a56586c42da8b8974ef05077b0
- SHA512 b20a747da044d45129c177d4d6b46560e11395d7d265de7674c31e100df9009db659a64b689000270cfc734c499ac3b4fc2d2ae07c72682f10742e735abf1c5e
- MD5 SHA1 SHA512
- Path C:\Users\Admin\AppData\Roaming\jVYbanglCI.exe
- Size 360KB
- SHA256 bcfbc45332b2105520ad1d6a0a7140963f5e04cac7726f10b6e4f12547d9f4b9
- MD5 50f5b3f99a60e89c482689212e6c84c7
- SHA1 da8559943ff158cedc14ae639b1b1f767afbe536
- SHA512 7e2e7e3d20bc6e82efdd8b8b658845ae3b4eb058e24e50f3628424eb61d8cd26bf4ae76110632f453515ebd8af03e9144d8a7d4c027d36e0e17a3205d162d09f
- SSDEEP 6144:wV2wg8YeX+AcxHi3MuFELuzWtBj1MyMRiTefU8S05q6ziO5mNNnz4kP+7B:SPOAXDFE66tBKbf/5qyMLnz4tB
- MD5 SHA1 SHA512 SSDEEP