Analysis
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max time kernel
121s -
max time network
121s -
platform
windows7_x64 -
resource
win7-20231129-en -
resource tags
arch:x64arch:x86image:win7-20231129-enlocale:en-usos:windows7-x64system -
submitted
19-02-2024 21:29
Behavioral task
behavioral1
Sample
2024-02-19_33c2a1189c2d5716f3e89f9ab0179675_darkside.exe
Resource
win7-20231129-en
Behavioral task
behavioral2
Sample
2024-02-19_33c2a1189c2d5716f3e89f9ab0179675_darkside.exe
Resource
win10v2004-20231215-en
General
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Target
2024-02-19_33c2a1189c2d5716f3e89f9ab0179675_darkside.exe
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Size
146KB
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MD5
33c2a1189c2d5716f3e89f9ab0179675
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SHA1
832cbb42ca2d3d772f5fc6836f98bb5b0059ee3b
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SHA256
f01909eee3dec5474a5a845deea3f8fb5502ac006f65060a7e945f91c966e266
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SHA512
530777cd0805f84b7831b193e8adec637877332b1ecf7005efc960e3fb2f5432b33c44ba758f853f364702e64d781330896fb6fc878314c0de926e547dc18d69
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SSDEEP
3072:9FqJogYkcSNm9V7DdOgrDx34Uuv5hQrfT:9Fq2kc4m9tDsIDx31d
Malware Config
Extracted
C:\7fpKwvu5x.README.txt
https://t.me/bit_decryptor
Signatures
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Renames multiple (281) files with added filename extension
This suggests ransomware activity of encrypting all the files on the system.
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Deletes itself 1 IoCs
Processes:
1F72.tmppid Process 1716 1F72.tmp -
Executes dropped EXE 1 IoCs
Processes:
1F72.tmppid Process 1716 1F72.tmp -
Loads dropped DLL 1 IoCs
Processes:
2024-02-19_33c2a1189c2d5716f3e89f9ab0179675_darkside.exepid Process 1712 2024-02-19_33c2a1189c2d5716f3e89f9ab0179675_darkside.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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Drops desktop.ini file(s) 2 IoCs
Processes:
2024-02-19_33c2a1189c2d5716f3e89f9ab0179675_darkside.exedescription ioc Process File opened for modification C:\$Recycle.Bin\S-1-5-21-3470981204-343661084-3367201002-1000\desktop.ini 2024-02-19_33c2a1189c2d5716f3e89f9ab0179675_darkside.exe File opened for modification F:\$RECYCLE.BIN\S-1-5-21-3470981204-343661084-3367201002-1000\desktop.ini 2024-02-19_33c2a1189c2d5716f3e89f9ab0179675_darkside.exe -
Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs
Processes:
1F72.tmppid Process 1716 1F72.tmp -
Suspicious behavior: EnumeratesProcesses 12 IoCs
Processes:
2024-02-19_33c2a1189c2d5716f3e89f9ab0179675_darkside.exepid Process 1712 2024-02-19_33c2a1189c2d5716f3e89f9ab0179675_darkside.exe 1712 2024-02-19_33c2a1189c2d5716f3e89f9ab0179675_darkside.exe 1712 2024-02-19_33c2a1189c2d5716f3e89f9ab0179675_darkside.exe 1712 2024-02-19_33c2a1189c2d5716f3e89f9ab0179675_darkside.exe 1712 2024-02-19_33c2a1189c2d5716f3e89f9ab0179675_darkside.exe 1712 2024-02-19_33c2a1189c2d5716f3e89f9ab0179675_darkside.exe 1712 2024-02-19_33c2a1189c2d5716f3e89f9ab0179675_darkside.exe 1712 2024-02-19_33c2a1189c2d5716f3e89f9ab0179675_darkside.exe 1712 2024-02-19_33c2a1189c2d5716f3e89f9ab0179675_darkside.exe 1712 2024-02-19_33c2a1189c2d5716f3e89f9ab0179675_darkside.exe 1712 2024-02-19_33c2a1189c2d5716f3e89f9ab0179675_darkside.exe 1712 2024-02-19_33c2a1189c2d5716f3e89f9ab0179675_darkside.exe -
Suspicious behavior: RenamesItself 26 IoCs
Processes:
1F72.tmppid Process 1716 1F72.tmp 1716 1F72.tmp 1716 1F72.tmp 1716 1F72.tmp 1716 1F72.tmp 1716 1F72.tmp 1716 1F72.tmp 1716 1F72.tmp 1716 1F72.tmp 1716 1F72.tmp 1716 1F72.tmp 1716 1F72.tmp 1716 1F72.tmp 1716 1F72.tmp 1716 1F72.tmp 1716 1F72.tmp 1716 1F72.tmp 1716 1F72.tmp 1716 1F72.tmp 1716 1F72.tmp 1716 1F72.tmp 1716 1F72.tmp 1716 1F72.tmp 1716 1F72.tmp 1716 1F72.tmp 1716 1F72.tmp -
Suspicious use of AdjustPrivilegeToken 64 IoCs
Processes:
2024-02-19_33c2a1189c2d5716f3e89f9ab0179675_darkside.exedescription pid Process Token: SeAssignPrimaryTokenPrivilege 1712 2024-02-19_33c2a1189c2d5716f3e89f9ab0179675_darkside.exe Token: SeBackupPrivilege 1712 2024-02-19_33c2a1189c2d5716f3e89f9ab0179675_darkside.exe Token: SeDebugPrivilege 1712 2024-02-19_33c2a1189c2d5716f3e89f9ab0179675_darkside.exe Token: 36 1712 2024-02-19_33c2a1189c2d5716f3e89f9ab0179675_darkside.exe Token: SeImpersonatePrivilege 1712 2024-02-19_33c2a1189c2d5716f3e89f9ab0179675_darkside.exe Token: SeIncBasePriorityPrivilege 1712 2024-02-19_33c2a1189c2d5716f3e89f9ab0179675_darkside.exe Token: SeIncreaseQuotaPrivilege 1712 2024-02-19_33c2a1189c2d5716f3e89f9ab0179675_darkside.exe Token: 33 1712 2024-02-19_33c2a1189c2d5716f3e89f9ab0179675_darkside.exe Token: SeManageVolumePrivilege 1712 2024-02-19_33c2a1189c2d5716f3e89f9ab0179675_darkside.exe Token: SeProfSingleProcessPrivilege 1712 2024-02-19_33c2a1189c2d5716f3e89f9ab0179675_darkside.exe Token: SeRestorePrivilege 1712 2024-02-19_33c2a1189c2d5716f3e89f9ab0179675_darkside.exe Token: SeSecurityPrivilege 1712 2024-02-19_33c2a1189c2d5716f3e89f9ab0179675_darkside.exe Token: SeSystemProfilePrivilege 1712 2024-02-19_33c2a1189c2d5716f3e89f9ab0179675_darkside.exe Token: SeTakeOwnershipPrivilege 1712 2024-02-19_33c2a1189c2d5716f3e89f9ab0179675_darkside.exe Token: SeShutdownPrivilege 1712 2024-02-19_33c2a1189c2d5716f3e89f9ab0179675_darkside.exe Token: SeDebugPrivilege 1712 2024-02-19_33c2a1189c2d5716f3e89f9ab0179675_darkside.exe Token: SeBackupPrivilege 1712 2024-02-19_33c2a1189c2d5716f3e89f9ab0179675_darkside.exe Token: SeBackupPrivilege 1712 2024-02-19_33c2a1189c2d5716f3e89f9ab0179675_darkside.exe Token: SeSecurityPrivilege 1712 2024-02-19_33c2a1189c2d5716f3e89f9ab0179675_darkside.exe Token: SeSecurityPrivilege 1712 2024-02-19_33c2a1189c2d5716f3e89f9ab0179675_darkside.exe Token: SeBackupPrivilege 1712 2024-02-19_33c2a1189c2d5716f3e89f9ab0179675_darkside.exe Token: SeBackupPrivilege 1712 2024-02-19_33c2a1189c2d5716f3e89f9ab0179675_darkside.exe Token: SeSecurityPrivilege 1712 2024-02-19_33c2a1189c2d5716f3e89f9ab0179675_darkside.exe Token: SeSecurityPrivilege 1712 2024-02-19_33c2a1189c2d5716f3e89f9ab0179675_darkside.exe Token: SeBackupPrivilege 1712 2024-02-19_33c2a1189c2d5716f3e89f9ab0179675_darkside.exe Token: SeBackupPrivilege 1712 2024-02-19_33c2a1189c2d5716f3e89f9ab0179675_darkside.exe Token: SeSecurityPrivilege 1712 2024-02-19_33c2a1189c2d5716f3e89f9ab0179675_darkside.exe Token: SeSecurityPrivilege 1712 2024-02-19_33c2a1189c2d5716f3e89f9ab0179675_darkside.exe Token: SeBackupPrivilege 1712 2024-02-19_33c2a1189c2d5716f3e89f9ab0179675_darkside.exe Token: SeBackupPrivilege 1712 2024-02-19_33c2a1189c2d5716f3e89f9ab0179675_darkside.exe Token: SeSecurityPrivilege 1712 2024-02-19_33c2a1189c2d5716f3e89f9ab0179675_darkside.exe Token: SeSecurityPrivilege 1712 2024-02-19_33c2a1189c2d5716f3e89f9ab0179675_darkside.exe Token: SeBackupPrivilege 1712 2024-02-19_33c2a1189c2d5716f3e89f9ab0179675_darkside.exe Token: SeBackupPrivilege 1712 2024-02-19_33c2a1189c2d5716f3e89f9ab0179675_darkside.exe Token: SeSecurityPrivilege 1712 2024-02-19_33c2a1189c2d5716f3e89f9ab0179675_darkside.exe Token: SeSecurityPrivilege 1712 2024-02-19_33c2a1189c2d5716f3e89f9ab0179675_darkside.exe Token: SeBackupPrivilege 1712 2024-02-19_33c2a1189c2d5716f3e89f9ab0179675_darkside.exe Token: SeBackupPrivilege 1712 2024-02-19_33c2a1189c2d5716f3e89f9ab0179675_darkside.exe Token: SeSecurityPrivilege 1712 2024-02-19_33c2a1189c2d5716f3e89f9ab0179675_darkside.exe Token: SeSecurityPrivilege 1712 2024-02-19_33c2a1189c2d5716f3e89f9ab0179675_darkside.exe Token: SeBackupPrivilege 1712 2024-02-19_33c2a1189c2d5716f3e89f9ab0179675_darkside.exe Token: SeBackupPrivilege 1712 2024-02-19_33c2a1189c2d5716f3e89f9ab0179675_darkside.exe Token: SeSecurityPrivilege 1712 2024-02-19_33c2a1189c2d5716f3e89f9ab0179675_darkside.exe Token: SeSecurityPrivilege 1712 2024-02-19_33c2a1189c2d5716f3e89f9ab0179675_darkside.exe Token: SeBackupPrivilege 1712 2024-02-19_33c2a1189c2d5716f3e89f9ab0179675_darkside.exe Token: SeBackupPrivilege 1712 2024-02-19_33c2a1189c2d5716f3e89f9ab0179675_darkside.exe Token: SeSecurityPrivilege 1712 2024-02-19_33c2a1189c2d5716f3e89f9ab0179675_darkside.exe Token: SeSecurityPrivilege 1712 2024-02-19_33c2a1189c2d5716f3e89f9ab0179675_darkside.exe Token: SeBackupPrivilege 1712 2024-02-19_33c2a1189c2d5716f3e89f9ab0179675_darkside.exe Token: SeBackupPrivilege 1712 2024-02-19_33c2a1189c2d5716f3e89f9ab0179675_darkside.exe Token: SeSecurityPrivilege 1712 2024-02-19_33c2a1189c2d5716f3e89f9ab0179675_darkside.exe Token: SeSecurityPrivilege 1712 2024-02-19_33c2a1189c2d5716f3e89f9ab0179675_darkside.exe Token: SeBackupPrivilege 1712 2024-02-19_33c2a1189c2d5716f3e89f9ab0179675_darkside.exe Token: SeBackupPrivilege 1712 2024-02-19_33c2a1189c2d5716f3e89f9ab0179675_darkside.exe Token: SeSecurityPrivilege 1712 2024-02-19_33c2a1189c2d5716f3e89f9ab0179675_darkside.exe Token: SeSecurityPrivilege 1712 2024-02-19_33c2a1189c2d5716f3e89f9ab0179675_darkside.exe Token: SeBackupPrivilege 1712 2024-02-19_33c2a1189c2d5716f3e89f9ab0179675_darkside.exe Token: SeBackupPrivilege 1712 2024-02-19_33c2a1189c2d5716f3e89f9ab0179675_darkside.exe Token: SeSecurityPrivilege 1712 2024-02-19_33c2a1189c2d5716f3e89f9ab0179675_darkside.exe Token: SeSecurityPrivilege 1712 2024-02-19_33c2a1189c2d5716f3e89f9ab0179675_darkside.exe Token: SeBackupPrivilege 1712 2024-02-19_33c2a1189c2d5716f3e89f9ab0179675_darkside.exe Token: SeBackupPrivilege 1712 2024-02-19_33c2a1189c2d5716f3e89f9ab0179675_darkside.exe Token: SeSecurityPrivilege 1712 2024-02-19_33c2a1189c2d5716f3e89f9ab0179675_darkside.exe Token: SeSecurityPrivilege 1712 2024-02-19_33c2a1189c2d5716f3e89f9ab0179675_darkside.exe -
Suspicious use of WriteProcessMemory 9 IoCs
Processes:
2024-02-19_33c2a1189c2d5716f3e89f9ab0179675_darkside.exe1F72.tmpdescription pid Process procid_target PID 1712 wrote to memory of 1716 1712 2024-02-19_33c2a1189c2d5716f3e89f9ab0179675_darkside.exe 30 PID 1712 wrote to memory of 1716 1712 2024-02-19_33c2a1189c2d5716f3e89f9ab0179675_darkside.exe 30 PID 1712 wrote to memory of 1716 1712 2024-02-19_33c2a1189c2d5716f3e89f9ab0179675_darkside.exe 30 PID 1712 wrote to memory of 1716 1712 2024-02-19_33c2a1189c2d5716f3e89f9ab0179675_darkside.exe 30 PID 1712 wrote to memory of 1716 1712 2024-02-19_33c2a1189c2d5716f3e89f9ab0179675_darkside.exe 30 PID 1716 wrote to memory of 2732 1716 1F72.tmp 31 PID 1716 wrote to memory of 2732 1716 1F72.tmp 31 PID 1716 wrote to memory of 2732 1716 1F72.tmp 31 PID 1716 wrote to memory of 2732 1716 1F72.tmp 31
Processes
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C:\Users\Admin\AppData\Local\Temp\2024-02-19_33c2a1189c2d5716f3e89f9ab0179675_darkside.exe"C:\Users\Admin\AppData\Local\Temp\2024-02-19_33c2a1189c2d5716f3e89f9ab0179675_darkside.exe"1⤵
- Loads dropped DLL
- Drops desktop.ini file(s)
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1712 -
C:\ProgramData\1F72.tmp"C:\ProgramData\1F72.tmp"2⤵
- Deletes itself
- Executes dropped EXE
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Suspicious behavior: RenamesItself
- Suspicious use of WriteProcessMemory
PID:1716 -
C:\Windows\SysWOW64\cmd.exe"C:\Windows\System32\cmd.exe" /C DEL /F /Q C:\PROGRA~3\1F72.tmp >> NUL3⤵PID:2732
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C:\Windows\system32\AUDIODG.EXEC:\Windows\system32\AUDIODG.EXE 0x1481⤵PID:2628
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
Loading Replay Monitor...
Downloads
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Filesize
129B
MD506e53da0b4316c41ee311e70d1c96b17
SHA114cb0c9f0ea632c60f80d28fae95bbe29abd05a4
SHA256588ffb08e9ecf6807d52be6d328070db8754ce1a137719a58f5722abd2a23cc1
SHA5120c9ad1238ba552ad4d9cf6dd8ed89d1bc0640bbc393c6c5072d85e5dd71b1d9f490d9aaa7554c71370d227827db78b3db22acd533048e844bf0140ba8cb61117
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Filesize
659B
MD58b35dc9ed788e8c30c3ed8ab02206566
SHA13628e18728c8c4690c13c695b2d918e1d021a65f
SHA256398ac25676ca35a2799093e964fae1ab4615285d7051db92fe2540b4b8718a36
SHA5125f268672fc244359fd6a25065ede92c77683cde9d5f8daf55df5ca6b9dd5be6c4b200bcea7fbc8e0dccefa8c66d823015cdef5e3ada434108d34fca098325dc1
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Filesize
146KB
MD5953321b2b94607dbef5ec84a81707159
SHA12fe09b13215631282275c6625c1ead5a20d86024
SHA2567675b9118ebaf13d6ae48f4f3148e11a50314b81e173d4d838541aaace465bd4
SHA512304ac3760816163ccc296f3ce8b4a51556c6ff4a815cca4eaab038e3fdef7f87738a5a032c360fcb995dfa2c614ddf072acd6a93bd4f82c858bcd57a9de93901
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Filesize
129B
MD5beef9c4f43dcedfb04182c60ba9a91f3
SHA157aee938544dc8cb69d204b4637267c245714cac
SHA256099a0326d521c8e3332cb4f8d73c2d6d65eac71e9bd5fe8899f4713df6bdc510
SHA5120a3fef3cf9a1d8cfcc4ab814603618513db9699f72aab7cbeb9e7512efb9c9d1c7affa649baa6391c6ff178aee131a5e6e5ef67a695106eb12c48a5b15fc4866
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Filesize
14KB
MD5294e9f64cb1642dd89229fff0592856b
SHA197b148c27f3da29ba7b18d6aee8a0db9102f47c9
SHA256917e115cc403e29b4388e0d175cbfac3e7e40ca1742299fbdb353847db2de7c2
SHA512b87d531890bf1577b9b4af41dddb2cdbbfa164cf197bd5987df3a3075983645a3acba443e289b7bfd338422978a104f55298fbfe346872de0895bde44adc89cf