Analysis
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max time kernel
204s -
max time network
182s -
platform
windows10-1703_x64 -
resource
win10-20240404-en -
resource tags
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submitted
02-07-2024 18:11
General
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Target
CoronaVirus.exe
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Size
1.0MB
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MD5
055d1462f66a350d9886542d4d79bc2b
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SHA1
f1086d2f667d807dbb1aa362a7a809ea119f2565
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SHA256
dddf7894b2e6aafa1903384759d68455c3a4a8348a7e2da3bd272555eba9bec0
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SHA512
2c5e570226252bdb2104c90d5b75f11493af8ed1be8cb0fd14e3f324311a82138753064731b80ce8e8b120b3fe7009b21a50e9f4583d534080e28ab84b83fee1
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SSDEEP
24576:FRYz/ERA0eMuWfHvgPw/83JI8CorP9qY0:FE/yADMuYvgP93JIc2
Malware Config
Extracted
C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Info.hta
Signatures
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Dharma
Dharma is a ransomware that uses security software installation to hide malicious activities.
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Deletes shadow copies 3 TTPs
Ransomware often targets backup files to inhibit system recovery.
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Renames multiple (439) files with added filename extension
This suggests ransomware activity of encrypting all the files on the system.
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Drops startup file 5 IoCs
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Reads user/profile data of web browsers 2 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 3 IoCs
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Drops desktop.ini file(s) 64 IoCs
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Drops file in System32 directory 2 IoCs
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Drops file in Program Files directory 64 IoCs
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Drops file in Windows directory 4 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 64 IoCs
SCSI information is often read in order to detect sandboxing environments.
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Interacts with shadow copies 3 TTPs 2 IoCs
Shadow copies are often targeted by ransomware to inhibit system recovery.
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Modifies data under HKEY_USERS 2 IoCs
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Suspicious behavior: EnumeratesProcesses 64 IoCs
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Suspicious behavior: LoadsDriver 14 IoCs
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Suspicious use of AdjustPrivilegeToken 28 IoCs
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Suspicious use of FindShellTrayWindow 37 IoCs
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Suspicious use of SendNotifyMessage 36 IoCs
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Suspicious use of WriteProcessMemory 16 IoCs
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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\CoronaVirus.exe"C:\Users\Admin\AppData\Local\Temp\CoronaVirus.exe"1⤵
- Drops startup file
- Adds Run key to start application
- Drops desktop.ini file(s)
- Drops file in System32 directory
- Drops file in Program Files directory
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
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C:\Windows\system32\cmd.exe"C:\Windows\system32\cmd.exe"2⤵
- Suspicious use of WriteProcessMemory
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C:\Windows\system32\mode.commode con cp select=12513⤵
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C:\Windows\system32\vssadmin.exevssadmin delete shadows /all /quiet3⤵
- Interacts with shadow copies
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C:\Windows\system32\cmd.exe"C:\Windows\system32\cmd.exe"2⤵
- Suspicious use of WriteProcessMemory
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C:\Windows\system32\mode.commode con cp select=12513⤵
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C:\Windows\system32\vssadmin.exevssadmin delete shadows /all /quiet3⤵
- Interacts with shadow copies
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C:\Windows\System32\mshta.exe"C:\Windows\System32\mshta.exe" "C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Info.hta"2⤵
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C:\Windows\System32\mshta.exe"C:\Windows\System32\mshta.exe" "C:\ProgramData\Microsoft\Windows\Start Menu\Programs\Startup\Info.hta"2⤵
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C:\Windows\system32\vssvc.exeC:\Windows\system32\vssvc.exe1⤵
- Suspicious use of AdjustPrivilegeToken
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C:\Windows\system32\NOTEPAD.EXE"C:\Windows\system32\NOTEPAD.EXE" C:\Users\Admin\Desktop\FILES ENCRYPTED.txt1⤵
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C:\Windows\system32\taskmgr.exe"C:\Windows\system32\taskmgr.exe" /41⤵
- Drops file in Windows directory
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
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C:\Windows\System32\SystemSettingsBroker.exeC:\Windows\System32\SystemSettingsBroker.exe -Embedding1⤵
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\??\c:\windows\system32\svchost.exec:\windows\system32\svchost.exe -k localservicenetworkrestricted -s RmSvc1⤵
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\??\c:\windows\system32\svchost.exec:\windows\system32\svchost.exe -k localservice -s SstpSvc1⤵
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C:\Windows\system32\svchost.exeC:\Windows\system32\svchost.exe -k netsvcs -s DsmSvc1⤵
- Checks SCSI registry key(s)
- Modifies data under HKEY_USERS
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\??\c:\windows\system32\svchost.exec:\windows\system32\svchost.exe -k netsvcs -s NetSetupSvc1⤵
- Drops file in Windows directory
- Suspicious use of AdjustPrivilegeToken
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\??\c:\windows\system32\svchost.exec:\windows\system32\svchost.exe -k netsvcs -s RasMan1⤵
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\??\c:\windows\system32\svchost.exec:\windows\system32\svchost.exe -k netsvcs -s RasMan1⤵
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C:\Windows\System32\SystemSettingsBroker.exeC:\Windows\System32\SystemSettingsBroker.exe -Embedding1⤵
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\??\c:\windows\system32\svchost.exec:\windows\system32\svchost.exe -k netsvcs -s RasMan1⤵
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C:\Windows\system32\AUDIODG.EXEC:\Windows\system32\AUDIODG.EXE 0x3a41⤵
- Suspicious use of AdjustPrivilegeToken
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C:\Windows\system32\NOTEPAD.EXE"C:\Windows\system32\NOTEPAD.EXE" C:\Users\Admin\Desktop\FILES ENCRYPTED.txt1⤵
- Suspicious use of FindShellTrayWindow
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C:\Windows\System32\rundll32.exeC:\Windows\System32\rundll32.exe C:\Windows\System32\shell32.dll,SHCreateLocalServerRunDll {9aa46009-3ce0-458a-a354-715610a075e6} -Embedding1⤵
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\??\c:\windows\system32\svchost.exec:\windows\system32\svchost.exe -k localservice -s fdPHost1⤵
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
2File Deletion
2Modify Registry
1Replay Monitor
Loading Replay Monitor...
Downloads
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Filesize
2.7MB
MD5bdb2769b1ecc7356cbc2483e95f112ca
SHA1bc5c4d6f274d9b155ff39f5bf2c65a8ac24c037d
SHA256086a41672b8eee51ebd309fc4d82653d10c75f9194cdc0198109f1be7c2d45a7
SHA5122d930490c64095bb0ca774ee0a384098d6583b090d2202c51c61aa48ad703e7eec8d04245677b4f30cf47ff60f32e3554d677f9707d8e94efe100db060d8f366
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Filesize
13KB
MD5bf18a5865d87f2f691085b3ee0d9de5f
SHA1378faaebbe956437cdd2098fcd16c3b0432392b7
SHA25614ea3e5f750c0f45e384f7bcfc2ae53d209a1a536bcfb7612f4488fe1b921048
SHA512d5c35693163e63dfca79a1ef9aa23ad58b95552309f38fbb1409720eb3b0a79bc57eb6ac91ca0861cb133a75c832d2ac7133946459a1c9333883bd0fabfe64a5
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Filesize
170B
MD521539971cae3b6278ce678b16b3f2643
SHA1f4357280ca6838b0b62e610c6ffc24d1ab615e37
SHA256b386715edcdb5fbb762f2308d588c5a67bfe65745105b87228596885e4715045
SHA51243f07a7df1bf14f76f60424219f00c051f4097f222f3b453cd208449f30e4915745300ad89f45a738bd828c7691fe97c0a16fa58115057d4ccf0e1784b46a7db
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Filesize
22KB
MD580648b43d233468718d717d10187b68d
SHA1a1736e8f0e408ce705722ce097d1adb24ebffc45
SHA2568ab9a39457507e405ade5ef9d723e0f89bc46d8d8b33d354b00d95847f098380
SHA512eec0ac7e7abcf87b3f0f4522b0dd95c658327afb866ceecff3c9ff0812a521201d729dd71d43f3ac46536f8435d4a49ac157b6282077c7c1940a6668f3b3aea9
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Filesize
6KB
MD501e21456e8000bab92907eec3b3aeea9
SHA139b34fe438352f7b095e24c89968fca48b8ce11c
SHA25635ad0403fdef3fce3ef5cd311c72fef2a95a317297a53c02735cda4bd6e0c74f
SHA5129d5153450e8fe3f51f20472bae4a2ab2fed43fad61a89b04a70325559f6ffed935dd72212671cc6cfc0288458d359bc71567f0d9af8e5770d696adc5bdadd7ec
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Filesize
1.4MB
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Filesize
208KB
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Filesize
1.4MB
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Filesize
1.4MB
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Filesize
208KB