Analysis
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max time kernel
121s -
max time network
125s -
platform
windows7_x64 -
resource
win7-20240704-en -
resource tags
arch:x64arch:x86image:win7-20240704-enlocale:en-usos:windows7-x64system -
submitted
10-07-2024 16:05
Behavioral task
behavioral1
Sample
LB3.exe
Resource
win7-20240704-en
windows7-x64
Behavioral task
behavioral2
Sample
LB3.exe
Resource
win10v2004-20240709-en
windows10-2004-x64
General
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Target
LB3.exe
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Size
145KB
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MD5
1676d013b73a71c5d7a7f8129dce462c
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SHA1
f7353627f6417b7bbca121b79ccbb206157f1e4a
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SHA256
aafc63bc6e322b9a5f98cfcce836aab437e1333ed238a63285cf6e5a510fada9
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SHA512
009230f4f366144aac799bfed06e6ea8ca62843c98e18a8b4d5be164346f1bf1915ab92ba16061bdc9680b48a97c04e933203bd6cf07674933af9b1a283feac9
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SSDEEP
1536:+zICS4AAwczUUf8y8gvMH+1zGSNAojMP95D1xDBt6+veFX5Ju5PmAiWSVwEydUyz:lqJogYkcSNm9V7DByJA5uAiPuE8T
Malware Config
Signatures
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Renames multiple (892) 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
pid Process 2140 F798.tmp -
Executes dropped EXE 1 IoCs
pid Process 2140 F798.tmp -
Loads dropped DLL 1 IoCs
pid Process 3024 LB3.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
description ioc Process File opened for modification C:\$Recycle.Bin\S-1-5-21-2212144002-1172735686-1556890956-1000\desktop.ini LB3.exe File opened for modification F:\$RECYCLE.BIN\S-1-5-21-2212144002-1172735686-1556890956-1000\desktop.ini LB3.exe -
Suspicious use of NtSetInformationThreadHideFromDebugger 6 IoCs
pid Process 2140 F798.tmp 2140 F798.tmp 2140 F798.tmp 2140 F798.tmp 2140 F798.tmp 2140 F798.tmp -
Suspicious behavior: EnumeratesProcesses 24 IoCs
pid Process 3024 LB3.exe 3024 LB3.exe 3024 LB3.exe 3024 LB3.exe 3024 LB3.exe 3024 LB3.exe 3024 LB3.exe 3024 LB3.exe 3024 LB3.exe 3024 LB3.exe 3024 LB3.exe 3024 LB3.exe 3024 LB3.exe 3024 LB3.exe 3024 LB3.exe 3024 LB3.exe 3024 LB3.exe 3024 LB3.exe 3024 LB3.exe 3024 LB3.exe 3024 LB3.exe 3024 LB3.exe 3024 LB3.exe 3024 LB3.exe -
Suspicious behavior: RenamesItself 26 IoCs
pid Process 2140 F798.tmp 2140 F798.tmp 2140 F798.tmp 2140 F798.tmp 2140 F798.tmp 2140 F798.tmp 2140 F798.tmp 2140 F798.tmp 2140 F798.tmp 2140 F798.tmp 2140 F798.tmp 2140 F798.tmp 2140 F798.tmp 2140 F798.tmp 2140 F798.tmp 2140 F798.tmp 2140 F798.tmp 2140 F798.tmp 2140 F798.tmp 2140 F798.tmp 2140 F798.tmp 2140 F798.tmp 2140 F798.tmp 2140 F798.tmp 2140 F798.tmp 2140 F798.tmp -
Suspicious use of AdjustPrivilegeToken 64 IoCs
description pid Process Token: SeAssignPrimaryTokenPrivilege 3024 LB3.exe Token: SeBackupPrivilege 3024 LB3.exe Token: SeDebugPrivilege 3024 LB3.exe Token: 36 3024 LB3.exe Token: SeImpersonatePrivilege 3024 LB3.exe Token: SeIncBasePriorityPrivilege 3024 LB3.exe Token: SeIncreaseQuotaPrivilege 3024 LB3.exe Token: 33 3024 LB3.exe Token: SeManageVolumePrivilege 3024 LB3.exe Token: SeProfSingleProcessPrivilege 3024 LB3.exe Token: SeRestorePrivilege 3024 LB3.exe Token: SeSecurityPrivilege 3024 LB3.exe Token: SeSystemProfilePrivilege 3024 LB3.exe Token: SeTakeOwnershipPrivilege 3024 LB3.exe Token: SeShutdownPrivilege 3024 LB3.exe Token: SeDebugPrivilege 3024 LB3.exe Token: SeBackupPrivilege 3024 LB3.exe Token: SeBackupPrivilege 3024 LB3.exe Token: SeSecurityPrivilege 3024 LB3.exe Token: SeSecurityPrivilege 3024 LB3.exe Token: SeBackupPrivilege 3024 LB3.exe Token: SeBackupPrivilege 3024 LB3.exe Token: SeSecurityPrivilege 3024 LB3.exe Token: SeSecurityPrivilege 3024 LB3.exe Token: SeBackupPrivilege 3024 LB3.exe Token: SeBackupPrivilege 3024 LB3.exe Token: SeSecurityPrivilege 3024 LB3.exe Token: SeSecurityPrivilege 3024 LB3.exe Token: SeBackupPrivilege 3024 LB3.exe Token: SeBackupPrivilege 3024 LB3.exe Token: SeSecurityPrivilege 3024 LB3.exe Token: SeSecurityPrivilege 3024 LB3.exe Token: SeBackupPrivilege 3024 LB3.exe Token: SeBackupPrivilege 3024 LB3.exe Token: SeSecurityPrivilege 3024 LB3.exe Token: SeSecurityPrivilege 3024 LB3.exe Token: SeBackupPrivilege 3024 LB3.exe Token: SeBackupPrivilege 3024 LB3.exe Token: SeSecurityPrivilege 3024 LB3.exe Token: SeSecurityPrivilege 3024 LB3.exe Token: SeBackupPrivilege 3024 LB3.exe Token: SeBackupPrivilege 3024 LB3.exe Token: SeSecurityPrivilege 3024 LB3.exe Token: SeSecurityPrivilege 3024 LB3.exe Token: SeBackupPrivilege 3024 LB3.exe Token: SeBackupPrivilege 3024 LB3.exe Token: SeSecurityPrivilege 3024 LB3.exe Token: SeSecurityPrivilege 3024 LB3.exe Token: SeBackupPrivilege 3024 LB3.exe Token: SeBackupPrivilege 3024 LB3.exe Token: SeSecurityPrivilege 3024 LB3.exe Token: SeSecurityPrivilege 3024 LB3.exe Token: SeBackupPrivilege 3024 LB3.exe Token: SeBackupPrivilege 3024 LB3.exe Token: SeSecurityPrivilege 3024 LB3.exe Token: SeSecurityPrivilege 3024 LB3.exe Token: SeBackupPrivilege 3024 LB3.exe Token: SeBackupPrivilege 3024 LB3.exe Token: SeSecurityPrivilege 3024 LB3.exe Token: SeSecurityPrivilege 3024 LB3.exe Token: SeBackupPrivilege 3024 LB3.exe Token: SeBackupPrivilege 3024 LB3.exe Token: SeSecurityPrivilege 3024 LB3.exe Token: SeSecurityPrivilege 3024 LB3.exe -
Suspicious use of WriteProcessMemory 5 IoCs
description pid Process procid_target PID 3024 wrote to memory of 2140 3024 LB3.exe 33 PID 3024 wrote to memory of 2140 3024 LB3.exe 33 PID 3024 wrote to memory of 2140 3024 LB3.exe 33 PID 3024 wrote to memory of 2140 3024 LB3.exe 33 PID 3024 wrote to memory of 2140 3024 LB3.exe 33
Processes
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C:\Users\Admin\AppData\Local\Temp\LB3.exe"C:\Users\Admin\AppData\Local\Temp\LB3.exe"1⤵
- Loads dropped DLL
- Drops desktop.ini file(s)
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3024 -
C:\ProgramData\F798.tmp"C:\ProgramData\F798.tmp"2⤵
- Deletes itself
- Executes dropped EXE
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Suspicious behavior: RenamesItself
PID:2140
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C:\Windows\system32\AUDIODG.EXEC:\Windows\system32\AUDIODG.EXE 0x1501⤵PID:1104
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
129B
MD5a55fc4523bc01bbafe79fdc05654e570
SHA14067cb6fa38af6cd13fefb998ba3a1a4f0e50ec2
SHA25676745aeabb24d49e85cf577826cd31e594b48e46d51cae8d62a77b06642a3c63
SHA51221bed44c44cb7c0391a9a11340f3c7c17673acef8c54cdcbe9a1241a25e04b7756d4d5f29ee8aaec5cb9bd50615ac0248fc72a9bae565e348187e40f6b73aa7a
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Filesize
289B
MD5343cf231bf640aee5079dafeac910456
SHA1986593eb26aac8592140bc47a677d3a849fd37c6
SHA256e191e18d1f27b1312b9f9599867b4b2bd99ede3af66b50cf91c45300ca49740c
SHA512308507c924fffa902a70343730c416c2d5e19e2958326a90640893a9559ba1e894d17f2e44dcb0b1d9b3b2dd3e3c0e5b9d13c659b90238fc4d497cccd1ca1185
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Filesize
145KB
MD5bdd7f5afd724aa81b300a06ccaee4b91
SHA18da0a36b838af533e03dcd5cb5b684389365121e
SHA256fd50501e13c87be023a3a70244d5a67c5db78cbfae08e0a0406dbc5b3b1e7ab5
SHA51239556efe31cf6905d8e660e14d94efcca4abf59d571135a324bb237ff469be0ae5836e1e2480f42fe21f0be96a25eb214402c735f3eaaa3b0284a93f874b733a
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Filesize
129B
MD5ac8699f49c01cdc0cc237ed3148dff2f
SHA1ecbb419cf180972a0465894f5461f7600e303660
SHA256cea7038d6ab7286784e81bd2a357d8aa216e73ccc25a64c4df050b692f13ed21
SHA512d37fbed2895afbc21dcbd420bd2d73815565036ea2178efd7d775361aa482398509b9e3fe4f6cc51de3bbe9c4dcda73b1e477bfbf2a9771cce0f00fa8c596f18
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Filesize
14KB
MD5294e9f64cb1642dd89229fff0592856b
SHA197b148c27f3da29ba7b18d6aee8a0db9102f47c9
SHA256917e115cc403e29b4388e0d175cbfac3e7e40ca1742299fbdb353847db2de7c2
SHA512b87d531890bf1577b9b4af41dddb2cdbbfa164cf197bd5987df3a3075983645a3acba443e289b7bfd338422978a104f55298fbfe346872de0895bde44adc89cf