Analysis
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max time kernel
148s -
max time network
156s -
platform
windows10-2004_x64 -
resource
win10v2004-20241007-en -
resource tags
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submitted
14-11-2024 02:08
General
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Target
1461362ebd3b8710610c59cd2aa00f435330bd9d8f75ba4105617b0205cd932b.exe
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Size
29KB
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MD5
c5a36a4a7e558ad587a7087d72a72c7c
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SHA1
3edc0fff5092983a4ae664c006dd5a94843eb715
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SHA256
1461362ebd3b8710610c59cd2aa00f435330bd9d8f75ba4105617b0205cd932b
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SHA512
c14b21e5e251449c6ad4ea29fc69ec5fc6586e16672d40cf019f6d9d63955d37b972c41b7e5a460a61059bf024647c4b9af7104237a87a96553a0276d6ef6986
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SSDEEP
384:StWZPzzxAm1vd5VM6YE2r7OUmgIYfdQPFolUOy5o91qqclYhhx82v4:37zxAmhWF/rEgIYw/ho98Ot82Q
Malware Config
Signatures
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Chaos
Ransomware family first seen in June 2021.
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Chaos Ransomware 2 IoCs
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Chaos family
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Deletes shadow copies 3 TTPs
Ransomware often targets backup files to inhibit system recovery.
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Modifies boot configuration data using bcdedit 1 TTPs 2 IoCs
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Deletes backup catalog 3 TTPs 1 IoCs
Uses wbadmin.exe to inhibit system recovery.
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Disables Task Manager via registry modification
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Checks computer location settings 2 TTPs 2 IoCs
Looks up country code configured in the registry, likely geofence.
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Drops startup file 2 IoCs
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Executes dropped EXE 1 IoCs
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Reads user/profile data of web browsers 3 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
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Adds Run key to start application 2 TTPs 1 IoCs
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Drops desktop.ini file(s) 64 IoCs
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Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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Checks SCSI registry key(s) 3 TTPs 4 IoCs
SCSI information is often read in order to detect sandboxing environments.
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Interacts with shadow copies 3 TTPs 1 IoCs
Shadow copies are often targeted by ransomware to inhibit system recovery.
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Modifies registry class 1 IoCs
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Opens file in notepad (likely ransom note) 1 IoCs
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Suspicious behavior: AddClipboardFormatListener 2 IoCs
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Suspicious behavior: EnumeratesProcesses 46 IoCs
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Suspicious use of AdjustPrivilegeToken 50 IoCs
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Suspicious use of WriteProcessMemory 20 IoCs
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Uses Task Scheduler COM API 1 TTPs
The Task Scheduler COM API can be used to schedule applications to run on boot or at set times.
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Uses Volume Shadow Copy service COM API
The Volume Shadow Copy service is used to manage backups/snapshots.
Processes
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C:\Users\Admin\AppData\Local\Temp\1461362ebd3b8710610c59cd2aa00f435330bd9d8f75ba4105617b0205cd932b.exe"C:\Users\Admin\AppData\Local\Temp\1461362ebd3b8710610c59cd2aa00f435330bd9d8f75ba4105617b0205cd932b.exe"1⤵
- Checks computer location settings
- Suspicious behavior: AddClipboardFormatListener
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Roaming\svchost.exe"C:\Users\Admin\AppData\Roaming\svchost.exe"2⤵
- Checks computer location settings
- Drops startup file
- Executes dropped EXE
- Adds Run key to start application
- Drops desktop.ini file(s)
- Modifies registry class
- Suspicious behavior: AddClipboardFormatListener
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
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C:\Windows\System32\cmd.exe"C:\Windows\System32\cmd.exe" /C vssadmin delete shadows /all /quiet & wmic shadowcopy delete3⤵
- Suspicious use of WriteProcessMemory
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C:\Windows\system32\vssadmin.exevssadmin delete shadows /all /quiet4⤵
- Interacts with shadow copies
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C:\Windows\System32\Wbem\WMIC.exewmic shadowcopy delete4⤵
- Suspicious use of AdjustPrivilegeToken
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C:\Windows\System32\cmd.exe"C:\Windows\System32\cmd.exe" /C bcdedit /set {default} bootstatuspolicy ignoreallfailures & bcdedit /set {default} recoveryenabled no3⤵
- Suspicious use of WriteProcessMemory
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C:\Windows\system32\bcdedit.exebcdedit /set {default} bootstatuspolicy ignoreallfailures4⤵
- Modifies boot configuration data using bcdedit
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C:\Windows\system32\bcdedit.exebcdedit /set {default} recoveryenabled no4⤵
- Modifies boot configuration data using bcdedit
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C:\Windows\System32\cmd.exe"C:\Windows\System32\cmd.exe" /C wbadmin delete catalog -quiet3⤵
- Suspicious use of WriteProcessMemory
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C:\Windows\system32\wbadmin.exewbadmin delete catalog -quiet4⤵
- Deletes backup catalog
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C:\Windows\system32\NOTEPAD.EXE"C:\Windows\system32\NOTEPAD.EXE" C:\Users\Admin\AppData\Roaming\ReadMe.txt3⤵
- Opens file in notepad (likely ransom note)
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C:\Windows\system32\vssvc.exeC:\Windows\system32\vssvc.exe1⤵
- Suspicious use of AdjustPrivilegeToken
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C:\Windows\system32\wbengine.exe"C:\Windows\system32\wbengine.exe"1⤵
- Suspicious use of AdjustPrivilegeToken
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C:\Windows\System32\vdsldr.exeC:\Windows\System32\vdsldr.exe -Embedding1⤵
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C:\Windows\System32\vds.exeC:\Windows\System32\vds.exe1⤵
- Checks SCSI registry key(s)
Network
MITRE ATT&CK Enterprise v15
Privilege Escalation
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Defense Evasion
Direct Volume Access
1Indicator Removal
3File Deletion
3Modify Registry
1Credential Access
Credentials from Password Stores
1Credentials from Web Browsers
1Unsecured Credentials
1Credentials In Files
1Replay Monitor
Loading Replay Monitor...
Downloads
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Filesize
1KB
MD5baf55b95da4a601229647f25dad12878
SHA1abc16954ebfd213733c4493fc1910164d825cac8
SHA256ee954c5d8156fd8890e582c716e5758ed9b33721258f10e758bdc31ccbcb1924
SHA51224f502fedb1a305d0d7b08857ffc1db9b2359ff34e06d5748ecc84e35c985f29a20d9f0a533bea32d234ab37097ec0481620c63b14ac89b280e75e14d19fd545
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Filesize
1KB
MD522577d64a5f3bc0195a15faee68d6656
SHA1f33c59571258195a04cb5bd332cefc2efcaee23a
SHA256d2bc1039a06522c7a124a3d612cf7e848bbf6848a5d7551b019937c69e79df4e
SHA51260627178f6252678e77e4f6dbf780d88ad2f77e23a7d96c8398922b5d4fd65aeff85f60f179e690dc76acfc7e073c9c40fe4c5acdee7be8844a06bc006df57a7
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Filesize
29KB
MD5c5a36a4a7e558ad587a7087d72a72c7c
SHA13edc0fff5092983a4ae664c006dd5a94843eb715
SHA2561461362ebd3b8710610c59cd2aa00f435330bd9d8f75ba4105617b0205cd932b
SHA512c14b21e5e251449c6ad4ea29fc69ec5fc6586e16672d40cf019f6d9d63955d37b972c41b7e5a460a61059bf024647c4b9af7104237a87a96553a0276d6ef6986
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Filesize
1B
MD5d1457b72c3fb323a2671125aef3eab5d
SHA15bab61eb53176449e25c2c82f172b82cb13ffb9d
SHA2568a8de823d5ed3e12746a62ef169bcf372be0ca44f0a1236abc35df05d96928e1
SHA512ca63c07ad35d8c9fb0c92d6146759b122d4ec5d3f67ebe2f30ddb69f9e6c9fd3bf31a5e408b08f1d4d9cd68120cced9e57f010bef3cde97653fed5470da7d1a0
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Filesize
8KB
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Filesize
56KB
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Filesize
10.8MB
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Filesize
10.8MB
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Filesize
10.8MB
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Filesize
10.8MB