Analysis
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max time kernel
53s -
max time network
114s -
platform
windows10_x64 -
resource
win10v20210410 -
submitted
24-06-2021 00:16
Static task
static1
Behavioral task
behavioral1
Sample
f3f25af554bedfa4ee2824bb858280282bd87828d446048619dc49fe061741b4.exe
Resource
win7v20210410
Behavioral task
behavioral2
Sample
f3f25af554bedfa4ee2824bb858280282bd87828d446048619dc49fe061741b4.exe
Resource
win10v20210410
General
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Target
f3f25af554bedfa4ee2824bb858280282bd87828d446048619dc49fe061741b4.exe
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Size
56KB
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MD5
3f2cb535fc5bc296aa5b0d2897c265d0
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SHA1
c30358563fa940eb5cd6064d4d16defee43b0310
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SHA256
f3f25af554bedfa4ee2824bb858280282bd87828d446048619dc49fe061741b4
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SHA512
6fc3a98f16f4fbd2e6bd4211c35b403ed565d6b30f803e6da04e14efe018aca09719256f1e8a2c8a5763a7bac08de3be964eb6251d858df0f6261f82b3f2f7a2
Malware Config
Extracted
C:\\README.aeef1a75.TXT
darkside
http://darksidc3iux462n6yunevoag52ntvwp6wulaz3zirkmh4cnz6hhj7id.onion/162/thedixiegroup/LCfyHRcwffrYTblpZvoPO3XDbrYPcNu0wVAsH5p49LSjBfzTmtdXT48azXFlMu7q
http://dark24zz36xm4y2phwe7yvnkkkkhxionhfrwp67awpb3r3bdcneivoqd.onion/W57MRI9C7YZJUZEABBBYRQLSUTG22JZ9MAH0WT1ISHC405KP7Z2UWY3AI3J68DNM
Signatures
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DarkSide
Targeted ransomware first seen in August 2020. Operators steal data to use as leverage.
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Modifies extensions of user files 4 IoCs
Ransomware generally changes the extension on encrypted files.
Processes:
f3f25af554bedfa4ee2824bb858280282bd87828d446048619dc49fe061741b4.exedescription ioc process File opened for modification C:\Users\Admin\Pictures\BackupStop.raw.aeef1a75 f3f25af554bedfa4ee2824bb858280282bd87828d446048619dc49fe061741b4.exe File renamed C:\Users\Admin\Pictures\SelectMeasure.crw => C:\Users\Admin\Pictures\SelectMeasure.crw.aeef1a75 f3f25af554bedfa4ee2824bb858280282bd87828d446048619dc49fe061741b4.exe File opened for modification C:\Users\Admin\Pictures\SelectMeasure.crw.aeef1a75 f3f25af554bedfa4ee2824bb858280282bd87828d446048619dc49fe061741b4.exe File renamed C:\Users\Admin\Pictures\BackupStop.raw => C:\Users\Admin\Pictures\BackupStop.raw.aeef1a75 f3f25af554bedfa4ee2824bb858280282bd87828d446048619dc49fe061741b4.exe -
Enumerates connected drives 3 TTPs 2 IoCs
Attempts to read the root path of hard drives other than the default C: drive.
Processes:
f3f25af554bedfa4ee2824bb858280282bd87828d446048619dc49fe061741b4.exef3f25af554bedfa4ee2824bb858280282bd87828d446048619dc49fe061741b4.exedescription ioc process File opened (read-only) \??\Z: f3f25af554bedfa4ee2824bb858280282bd87828d446048619dc49fe061741b4.exe File opened (read-only) \??\Z: f3f25af554bedfa4ee2824bb858280282bd87828d446048619dc49fe061741b4.exe -
Drops file in System32 directory 5 IoCs
Processes:
f3f25af554bedfa4ee2824bb858280282bd87828d446048619dc49fe061741b4.exedescription ioc process File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCache\IE f3f25af554bedfa4ee2824bb858280282bd87828d446048619dc49fe061741b4.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCookies f3f25af554bedfa4ee2824bb858280282bd87828d446048619dc49fe061741b4.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\History\History.IE5 f3f25af554bedfa4ee2824bb858280282bd87828d446048619dc49fe061741b4.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCache\counters2.dat f3f25af554bedfa4ee2824bb858280282bd87828d446048619dc49fe061741b4.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCache\Content.IE5 f3f25af554bedfa4ee2824bb858280282bd87828d446048619dc49fe061741b4.exe -
Sets desktop wallpaper using registry 2 TTPs 1 IoCs
Processes:
f3f25af554bedfa4ee2824bb858280282bd87828d446048619dc49fe061741b4.exedescription ioc process Set value (str) \REGISTRY\USER\S-1-5-21-3686645723-710336880-414668232-1000\Control Panel\Desktop\WallPaper = "C:\\ProgramData\\aeef1a75.BMP" f3f25af554bedfa4ee2824bb858280282bd87828d446048619dc49fe061741b4.exe -
Modifies Control Panel 2 IoCs
Processes:
f3f25af554bedfa4ee2824bb858280282bd87828d446048619dc49fe061741b4.exedescription ioc process Key created \REGISTRY\USER\S-1-5-21-3686645723-710336880-414668232-1000\Control Panel\Desktop f3f25af554bedfa4ee2824bb858280282bd87828d446048619dc49fe061741b4.exe Set value (str) \REGISTRY\USER\S-1-5-21-3686645723-710336880-414668232-1000\Control Panel\Desktop\WallpaperStyle = "10" f3f25af554bedfa4ee2824bb858280282bd87828d446048619dc49fe061741b4.exe -
Modifies data under HKEY_USERS 29 IoCs
Processes:
f3f25af554bedfa4ee2824bb858280282bd87828d446048619dc49fe061741b4.exef3f25af554bedfa4ee2824bb858280282bd87828d446048619dc49fe061741b4.exedescription ioc process Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\RestartManager\Session0000 f3f25af554bedfa4ee2824bb858280282bd87828d446048619dc49fe061741b4.exe Set value (data) \REGISTRY\USER\.DEFAULT\Software\Microsoft\RestartManager\Session0000\RegFiles0000 = 5c005c003f005c0043003a005c00550073006500720073005c00410064006d0069006e005c006e00740075007300650072002e006400610074002e004c004f004700310000000000 f3f25af554bedfa4ee2824bb858280282bd87828d446048619dc49fe061741b4.exe Set value (data) \REGISTRY\USER\.DEFAULT\Software\Microsoft\RestartManager\Session0000\RegFilesHash = 2c24c8cbc4d8a36f05f2787f633b5062fe790724d06f50151d35ebb0f64734c7 f3f25af554bedfa4ee2824bb858280282bd87828d446048619dc49fe061741b4.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:" f3f25af554bedfa4ee2824bb858280282bd87828d446048619dc49fe061741b4.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ProxyBypass = "1" f3f25af554bedfa4ee2824bb858280282bd87828d446048619dc49fe061741b4.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\IntranetName = "1" f3f25af554bedfa4ee2824bb858280282bd87828d446048619dc49fe061741b4.exe Set value (data) \REGISTRY\USER\.DEFAULT\Software\Microsoft\RestartManager\Session0000\RegFilesHash = 263c2d41d374b2a9f11a3594715e559f1a095cbe8a174cbb5c1c395d655e60d0 f3f25af554bedfa4ee2824bb858280282bd87828d446048619dc49fe061741b4.exe Key deleted \REGISTRY\USER\.DEFAULT\Software\Microsoft\RestartManager\Session0000 f3f25af554bedfa4ee2824bb858280282bd87828d446048619dc49fe061741b4.exe Set value (data) \REGISTRY\USER\.DEFAULT\Software\Microsoft\RestartManager\Session0000\RegFiles0000 = 5c005c003f005c0043003a005c00550073006500720073005c00410064006d0069006e005c004e00540055005300450052002e004400410054007b00340065003000370034003600360038002d0030006300310063002d0031003100650037002d0061003900340033002d006500340031006400320064003700310038006100320030007d002e0054004d0043006f006e007400610069006e0065007200300030003000300030003000300030003000300030003000300030003000300030003000300032002e007200650067007400720061006e0073002d006d00730000000000 f3f25af554bedfa4ee2824bb858280282bd87828d446048619dc49fe061741b4.exe Key created \REGISTRY\USER\.DEFAULT\Control Panel\International f3f25af554bedfa4ee2824bb858280282bd87828d446048619dc49fe061741b4.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ f3f25af554bedfa4ee2824bb858280282bd87828d446048619dc49fe061741b4.exe Key created \REGISTRY\USER\.DEFAULT\Software f3f25af554bedfa4ee2824bb858280282bd87828d446048619dc49fe061741b4.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\RestartManager f3f25af554bedfa4ee2824bb858280282bd87828d446048619dc49fe061741b4.exe Set value (data) \REGISTRY\USER\.DEFAULT\Software\Microsoft\RestartManager\Session0000\SessionHash = 4c02b2c1c7956c7ab9247521100a12387655888a865fd22d5c539b138c1edbf1 f3f25af554bedfa4ee2824bb858280282bd87828d446048619dc49fe061741b4.exe Set value (data) \REGISTRY\USER\.DEFAULT\Software\Microsoft\RestartManager\Session0000\SessionHash = 50d61eba05f3a03ac9da48d3a06cf657511f082a0fb97e4e1ead9b90475efa35 f3f25af554bedfa4ee2824bb858280282bd87828d446048619dc49fe061741b4.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "0" f3f25af554bedfa4ee2824bb858280282bd87828d446048619dc49fe061741b4.exe Set value (data) \REGISTRY\USER\.DEFAULT\Software\Microsoft\RestartManager\Session0000\SessionHash = 99ebba3382884963823ee4ae01c1989cffca111472fbcdaa03f21232a9120c11 f3f25af554bedfa4ee2824bb858280282bd87828d446048619dc49fe061741b4.exe Set value (data) \REGISTRY\USER\.DEFAULT\Software\Microsoft\RestartManager\Session0000\RegFiles0000 = 5c005c003f005c0043003a005c00550073006500720073005c00410064006d0069006e005c004e00540055005300450052002e004400410054007b00340065003000370034003600360038002d0030006300310063002d0031003100650037002d0061003900340033002d006500340031006400320064003700310038006100320030007d002e0054004d002e0062006c00660000000000 f3f25af554bedfa4ee2824bb858280282bd87828d446048619dc49fe061741b4.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix f3f25af554bedfa4ee2824bb858280282bd87828d446048619dc49fe061741b4.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft f3f25af554bedfa4ee2824bb858280282bd87828d446048619dc49fe061741b4.exe Set value (data) \REGISTRY\USER\.DEFAULT\Software\Microsoft\RestartManager\Session0000\SessionHash = 78ad6df2f45788bc9e237eaa8e6cc3a1f51063de2768fe3c4850bc775af58efa f3f25af554bedfa4ee2824bb858280282bd87828d446048619dc49fe061741b4.exe Set value (data) \REGISTRY\USER\.DEFAULT\Software\Microsoft\RestartManager\Session0000\RegFilesHash = dd531a0c2e28d3cd02d51004444843b99c2429497ae29f732bdad6b2b885abe2 f3f25af554bedfa4ee2824bb858280282bd87828d446048619dc49fe061741b4.exe Set value (data) \REGISTRY\USER\.DEFAULT\Software\Microsoft\RestartManager\Session0000\RegFilesHash = 4a950581129f321cab1ffde324a7bb4659ccca7b877b60d81627abeafb6b5205 f3f25af554bedfa4ee2824bb858280282bd87828d446048619dc49fe061741b4.exe Set value (str) \REGISTRY\USER\.DEFAULT\Control Panel\Desktop\Wallpaper = "C:\\ProgramData\\aeef1a75.BMP" f3f25af554bedfa4ee2824bb858280282bd87828d446048619dc49fe061741b4.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "1" f3f25af554bedfa4ee2824bb858280282bd87828d446048619dc49fe061741b4.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:" f3f25af554bedfa4ee2824bb858280282bd87828d446048619dc49fe061741b4.exe Set value (data) \REGISTRY\USER\.DEFAULT\Software\Microsoft\RestartManager\Session0000\Owner = bc0000009c5121ac8e68d701 f3f25af554bedfa4ee2824bb858280282bd87828d446048619dc49fe061741b4.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\RestartManager\Session0000\Sequence = "1" f3f25af554bedfa4ee2824bb858280282bd87828d446048619dc49fe061741b4.exe Set value (data) \REGISTRY\USER\.DEFAULT\Software\Microsoft\RestartManager\Session0000\RegFiles0000 = 5c005c003f005c0043003a005c00550073006500720073005c00410064006d0069006e005c004e00540055005300450052002e004400410054007b00340065003000370034003600360038002d0030006300310063002d0031003100650037002d0061003900340033002d006500340031006400320064003700310038006100320030007d002e0054004d0043006f006e007400610069006e0065007200300030003000300030003000300030003000300030003000300030003000300030003000300031002e007200650067007400720061006e0073002d006d00730000000000 f3f25af554bedfa4ee2824bb858280282bd87828d446048619dc49fe061741b4.exe -
Modifies registry class 5 IoCs
Processes:
f3f25af554bedfa4ee2824bb858280282bd87828d446048619dc49fe061741b4.exedescription ioc process Key created \REGISTRY\MACHINE\SOFTWARE\Classes\.aeef1a75 f3f25af554bedfa4ee2824bb858280282bd87828d446048619dc49fe061741b4.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\.aeef1a75\ = "aeef1a75" f3f25af554bedfa4ee2824bb858280282bd87828d446048619dc49fe061741b4.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\aeef1a75\DefaultIcon f3f25af554bedfa4ee2824bb858280282bd87828d446048619dc49fe061741b4.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\aeef1a75 f3f25af554bedfa4ee2824bb858280282bd87828d446048619dc49fe061741b4.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\aeef1a75\DefaultIcon\ = "C:\\ProgramData\\aeef1a75.ico" f3f25af554bedfa4ee2824bb858280282bd87828d446048619dc49fe061741b4.exe -
Suspicious behavior: EnumeratesProcesses 26 IoCs
Processes:
f3f25af554bedfa4ee2824bb858280282bd87828d446048619dc49fe061741b4.exef3f25af554bedfa4ee2824bb858280282bd87828d446048619dc49fe061741b4.exepid process 1480 f3f25af554bedfa4ee2824bb858280282bd87828d446048619dc49fe061741b4.exe 1480 f3f25af554bedfa4ee2824bb858280282bd87828d446048619dc49fe061741b4.exe 188 f3f25af554bedfa4ee2824bb858280282bd87828d446048619dc49fe061741b4.exe 188 f3f25af554bedfa4ee2824bb858280282bd87828d446048619dc49fe061741b4.exe 188 f3f25af554bedfa4ee2824bb858280282bd87828d446048619dc49fe061741b4.exe 188 f3f25af554bedfa4ee2824bb858280282bd87828d446048619dc49fe061741b4.exe 188 f3f25af554bedfa4ee2824bb858280282bd87828d446048619dc49fe061741b4.exe 188 f3f25af554bedfa4ee2824bb858280282bd87828d446048619dc49fe061741b4.exe 188 f3f25af554bedfa4ee2824bb858280282bd87828d446048619dc49fe061741b4.exe 188 f3f25af554bedfa4ee2824bb858280282bd87828d446048619dc49fe061741b4.exe 188 f3f25af554bedfa4ee2824bb858280282bd87828d446048619dc49fe061741b4.exe 188 f3f25af554bedfa4ee2824bb858280282bd87828d446048619dc49fe061741b4.exe 188 f3f25af554bedfa4ee2824bb858280282bd87828d446048619dc49fe061741b4.exe 188 f3f25af554bedfa4ee2824bb858280282bd87828d446048619dc49fe061741b4.exe 188 f3f25af554bedfa4ee2824bb858280282bd87828d446048619dc49fe061741b4.exe 188 f3f25af554bedfa4ee2824bb858280282bd87828d446048619dc49fe061741b4.exe 188 f3f25af554bedfa4ee2824bb858280282bd87828d446048619dc49fe061741b4.exe 188 f3f25af554bedfa4ee2824bb858280282bd87828d446048619dc49fe061741b4.exe 188 f3f25af554bedfa4ee2824bb858280282bd87828d446048619dc49fe061741b4.exe 188 f3f25af554bedfa4ee2824bb858280282bd87828d446048619dc49fe061741b4.exe 188 f3f25af554bedfa4ee2824bb858280282bd87828d446048619dc49fe061741b4.exe 188 f3f25af554bedfa4ee2824bb858280282bd87828d446048619dc49fe061741b4.exe 188 f3f25af554bedfa4ee2824bb858280282bd87828d446048619dc49fe061741b4.exe 188 f3f25af554bedfa4ee2824bb858280282bd87828d446048619dc49fe061741b4.exe 188 f3f25af554bedfa4ee2824bb858280282bd87828d446048619dc49fe061741b4.exe 188 f3f25af554bedfa4ee2824bb858280282bd87828d446048619dc49fe061741b4.exe -
Suspicious use of AdjustPrivilegeToken 3 IoCs
Processes:
vssvc.exedescription pid process Token: SeBackupPrivilege 2732 vssvc.exe Token: SeRestorePrivilege 2732 vssvc.exe Token: SeAuditPrivilege 2732 vssvc.exe -
Suspicious use of WriteProcessMemory 10 IoCs
Processes:
f3f25af554bedfa4ee2824bb858280282bd87828d446048619dc49fe061741b4.exef3f25af554bedfa4ee2824bb858280282bd87828d446048619dc49fe061741b4.exedescription pid process target process PID 1180 wrote to memory of 1480 1180 f3f25af554bedfa4ee2824bb858280282bd87828d446048619dc49fe061741b4.exe f3f25af554bedfa4ee2824bb858280282bd87828d446048619dc49fe061741b4.exe PID 1180 wrote to memory of 1480 1180 f3f25af554bedfa4ee2824bb858280282bd87828d446048619dc49fe061741b4.exe f3f25af554bedfa4ee2824bb858280282bd87828d446048619dc49fe061741b4.exe PID 1180 wrote to memory of 1480 1180 f3f25af554bedfa4ee2824bb858280282bd87828d446048619dc49fe061741b4.exe f3f25af554bedfa4ee2824bb858280282bd87828d446048619dc49fe061741b4.exe PID 1180 wrote to memory of 1480 1180 f3f25af554bedfa4ee2824bb858280282bd87828d446048619dc49fe061741b4.exe f3f25af554bedfa4ee2824bb858280282bd87828d446048619dc49fe061741b4.exe PID 1480 wrote to memory of 188 1480 f3f25af554bedfa4ee2824bb858280282bd87828d446048619dc49fe061741b4.exe f3f25af554bedfa4ee2824bb858280282bd87828d446048619dc49fe061741b4.exe PID 1480 wrote to memory of 188 1480 f3f25af554bedfa4ee2824bb858280282bd87828d446048619dc49fe061741b4.exe f3f25af554bedfa4ee2824bb858280282bd87828d446048619dc49fe061741b4.exe PID 1480 wrote to memory of 188 1480 f3f25af554bedfa4ee2824bb858280282bd87828d446048619dc49fe061741b4.exe f3f25af554bedfa4ee2824bb858280282bd87828d446048619dc49fe061741b4.exe PID 1480 wrote to memory of 3940 1480 f3f25af554bedfa4ee2824bb858280282bd87828d446048619dc49fe061741b4.exe f3f25af554bedfa4ee2824bb858280282bd87828d446048619dc49fe061741b4.exe PID 1480 wrote to memory of 3940 1480 f3f25af554bedfa4ee2824bb858280282bd87828d446048619dc49fe061741b4.exe f3f25af554bedfa4ee2824bb858280282bd87828d446048619dc49fe061741b4.exe PID 1480 wrote to memory of 3940 1480 f3f25af554bedfa4ee2824bb858280282bd87828d446048619dc49fe061741b4.exe f3f25af554bedfa4ee2824bb858280282bd87828d446048619dc49fe061741b4.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\f3f25af554bedfa4ee2824bb858280282bd87828d446048619dc49fe061741b4.exe"C:\Users\Admin\AppData\Local\Temp\f3f25af554bedfa4ee2824bb858280282bd87828d446048619dc49fe061741b4.exe"1⤵PID:1908
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C:\Users\Admin\AppData\Local\Temp\f3f25af554bedfa4ee2824bb858280282bd87828d446048619dc49fe061741b4.exe"C:\Users\Admin\AppData\Local\Temp\f3f25af554bedfa4ee2824bb858280282bd87828d446048619dc49fe061741b4.exe"1⤵
- Suspicious use of WriteProcessMemory
PID:1180 -
C:\Users\Admin\AppData\Local\Temp\f3f25af554bedfa4ee2824bb858280282bd87828d446048619dc49fe061741b4.exe"C:\Users\Admin\AppData\Local\Temp\f3f25af554bedfa4ee2824bb858280282bd87828d446048619dc49fe061741b4.exe"2⤵
- Enumerates connected drives
- Drops file in System32 directory
- Sets desktop wallpaper using registry
- Modifies Control Panel
- Modifies data under HKEY_USERS
- Modifies registry class
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:1480 -
C:\Users\Admin\AppData\Local\Temp\f3f25af554bedfa4ee2824bb858280282bd87828d446048619dc49fe061741b4.exeC:\Users\Admin\AppData\Local\Temp\f3f25af554bedfa4ee2824bb858280282bd87828d446048619dc49fe061741b4.exe -work worker0 job0-14803⤵
- Modifies extensions of user files
- Modifies data under HKEY_USERS
- Suspicious behavior: EnumeratesProcesses
PID:188
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C:\Users\Admin\AppData\Local\Temp\f3f25af554bedfa4ee2824bb858280282bd87828d446048619dc49fe061741b4.exeC:\Users\Admin\AppData\Local\Temp\f3f25af554bedfa4ee2824bb858280282bd87828d446048619dc49fe061741b4.exe -work worker1 job1-14803⤵
- Enumerates connected drives
PID:3940
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C:\Windows\system32\vssvc.exeC:\Windows\system32\vssvc.exe1⤵
- Suspicious use of AdjustPrivilegeToken
PID:2732