Analysis
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max time kernel
182s -
max time network
190s -
platform
windows10-2004_x64 -
resource
win10v2004-20221111-en -
resource tags
arch:x64arch:x86image:win10v2004-20221111-enlocale:en-usos:windows10-2004-x64system -
submitted
12-02-2023 09:13
Static task
static1
Behavioral task
behavioral1
Sample
4DA4E24086338BD0451BEC5230D9CA86.exe
Resource
win7-20221111-en
Behavioral task
behavioral2
Sample
4DA4E24086338BD0451BEC5230D9CA86.exe
Resource
win10v2004-20221111-en
General
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Target
4DA4E24086338BD0451BEC5230D9CA86.exe
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Size
1.0MB
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MD5
4da4e24086338bd0451bec5230d9ca86
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SHA1
7fc81b5f70e3d7af4a9d55cdc38afb0cfdec8158
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SHA256
c76f6e44390f63e0a43bddef270f959c31899c65b93f139a0efbd2f2e625b1a8
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SHA512
628077dd26bd8a6bfdb1333095063796079a85aff8c90caac70be770f662fa7fa436bbae19610b8f25caaddc34024eb98f051e269bfbc5d85e8bf840a5790e79
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SSDEEP
24576:gRZVFDDpos7pkagvZTuGY8IyS0CaLF7Od+PGstTIVtfO:KZVJ6s9kagz9IySH+e2TIVtfO
Malware Config
Extracted
Protocol: smtp- Host:
smtp.gmail.com - Port:
587 - Username:
mrssussydominic@gmail.com - Password:
nnaemeka12
Signatures
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Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
Processes:
4DA4E24086338BD0451BEC5230D9CA86.exedescription ioc process Key value queried \REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\Control Panel\International\Geo\Nation 4DA4E24086338BD0451BEC5230D9CA86.exe -
Executes dropped EXE 1 IoCs
Processes:
Windows Update.exepid process 3888 Windows Update.exe -
Reads local data of messenger clients 2 TTPs
Infostealers often target stored data of messaging applications, which can include saved credentials and account information.
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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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Uses the VBS compiler for execution 1 TTPs
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Accesses Microsoft Outlook accounts 1 TTPs 1 IoCs
Processes:
vbc.exedescription ioc process Key opened \REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\Software\Microsoft\Office\Outlook\OMI Account Manager\Accounts vbc.exe -
Adds Run key to start application 2 TTPs 1 IoCs
Processes:
Windows Update.exedescription ioc process Set value (str) \REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Windows Update = "C:\\Users\\Admin\\AppData\\Roaming\\WindowsUpdate.exe" Windows Update.exe -
Looks up external IP address via web service 1 IoCs
Uses a legitimate IP lookup service to find the infected system's external IP.
Processes:
flow ioc 24 whatismyipaddress.com -
Suspicious use of SetThreadContext 2 IoCs
Processes:
Windows Update.exedescription pid process target process PID 3888 set thread context of 2672 3888 Windows Update.exe vbc.exe PID 3888 set thread context of 1744 3888 Windows Update.exe vbc.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
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Suspicious behavior: EnumeratesProcesses 1 IoCs
Processes:
Windows Update.exepid process 3888 Windows Update.exe -
Suspicious use of AdjustPrivilegeToken 3 IoCs
Processes:
Windows Update.exevbc.exevbc.exedescription pid process Token: SeDebugPrivilege 3888 Windows Update.exe Token: SeDebugPrivilege 2672 vbc.exe Token: SeDebugPrivilege 1744 vbc.exe -
Suspicious use of SetWindowsHookEx 1 IoCs
Processes:
Windows Update.exepid process 3888 Windows Update.exe -
Suspicious use of WriteProcessMemory 21 IoCs
Processes:
4DA4E24086338BD0451BEC5230D9CA86.exeWindows Update.exedescription pid process target process PID 4944 wrote to memory of 3888 4944 4DA4E24086338BD0451BEC5230D9CA86.exe Windows Update.exe PID 4944 wrote to memory of 3888 4944 4DA4E24086338BD0451BEC5230D9CA86.exe Windows Update.exe PID 4944 wrote to memory of 3888 4944 4DA4E24086338BD0451BEC5230D9CA86.exe Windows Update.exe PID 3888 wrote to memory of 2672 3888 Windows Update.exe vbc.exe PID 3888 wrote to memory of 2672 3888 Windows Update.exe vbc.exe PID 3888 wrote to memory of 2672 3888 Windows Update.exe vbc.exe PID 3888 wrote to memory of 2672 3888 Windows Update.exe vbc.exe PID 3888 wrote to memory of 2672 3888 Windows Update.exe vbc.exe PID 3888 wrote to memory of 2672 3888 Windows Update.exe vbc.exe PID 3888 wrote to memory of 2672 3888 Windows Update.exe vbc.exe PID 3888 wrote to memory of 2672 3888 Windows Update.exe vbc.exe PID 3888 wrote to memory of 2672 3888 Windows Update.exe vbc.exe PID 3888 wrote to memory of 1744 3888 Windows Update.exe vbc.exe PID 3888 wrote to memory of 1744 3888 Windows Update.exe vbc.exe PID 3888 wrote to memory of 1744 3888 Windows Update.exe vbc.exe PID 3888 wrote to memory of 1744 3888 Windows Update.exe vbc.exe PID 3888 wrote to memory of 1744 3888 Windows Update.exe vbc.exe PID 3888 wrote to memory of 1744 3888 Windows Update.exe vbc.exe PID 3888 wrote to memory of 1744 3888 Windows Update.exe vbc.exe PID 3888 wrote to memory of 1744 3888 Windows Update.exe vbc.exe PID 3888 wrote to memory of 1744 3888 Windows Update.exe vbc.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\4DA4E24086338BD0451BEC5230D9CA86.exe"C:\Users\Admin\AppData\Local\Temp\4DA4E24086338BD0451BEC5230D9CA86.exe"1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Roaming\Windows Update.exe"C:\Users\Admin\AppData\Roaming\Windows Update.exe"2⤵
- Executes dropped EXE
- Adds Run key to start application
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
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C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe"C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe" -f "C:\Users\Admin\AppData\Local\Temp\holdermail.txt"3⤵
- Accesses Microsoft Outlook accounts
- Suspicious use of AdjustPrivilegeToken
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C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe"C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe" -f "C:\Users\Admin\AppData\Local\Temp\holdermail.txt"3⤵
- 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\Temp\SysInfo.txtFilesize
70B
MD59deb9b917bca025e0714a67ddfc6824e
SHA1cef7c28db706da3722c8a4dc6b787ad987dfb078
SHA256d2fbd62330d86708e882d296dcbe9b1eafcc838ac3be3b2568c14f41e3eaf4e3
SHA512c8cad384a29a8c67a59ea336a17399369ca9aaecb1f37d713a1d11915dbfe616d25ed2d776727b0d5af3b147bfcbeb7cb395bcfc2e00e5378c3a0012ef22bc2b
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C:\Users\Admin\AppData\Local\Temp\holdermail.txtFilesize
327B
MD51265c5140a2f68b05b92aa1a25a2abb6
SHA1627a660e9d2a41c8c4a662ca44fdb68a1356bc82
SHA256694bae0c1ebf6f8eeb8d902b1bfad57ed9a42dea6d3e327a0137a1c9f4f0c6b9
SHA512ad6a1dd57ec84459f28926d07e25f2c4f49dc67ff95b8400e85c3bcb8eccc471dbac5e2b1a2758fb563866ecacc2fae4657dfb85197fb4cd2547eef334b8a216
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C:\Users\Admin\AppData\Local\Temp\holdermail.txtFilesize
1KB
MD501e7975c708365983265ae40d604beb4
SHA1f1c793c9b7a312d355cd944928ba9272bbeec44e
SHA25695d7aeb5f67dc33d0b62d02b26a5d469436f58f2246fd95189a8b86220bc9a40
SHA5129c67c306fbb0e191ea7af01388c6a99714c353590d99887ddd0b0ceee3f6cd3af2e7b2c8d1d22a5a34dac746e4b2156876d935a658afc9a1d38597fd4922e023
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C:\Users\Admin\AppData\Roaming\Windows Update.exeFilesize
1.0MB
MD54da4e24086338bd0451bec5230d9ca86
SHA17fc81b5f70e3d7af4a9d55cdc38afb0cfdec8158
SHA256c76f6e44390f63e0a43bddef270f959c31899c65b93f139a0efbd2f2e625b1a8
SHA512628077dd26bd8a6bfdb1333095063796079a85aff8c90caac70be770f662fa7fa436bbae19610b8f25caaddc34024eb98f051e269bfbc5d85e8bf840a5790e79
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C:\Users\Admin\AppData\Roaming\Windows Update.exeFilesize
1.0MB
MD54da4e24086338bd0451bec5230d9ca86
SHA17fc81b5f70e3d7af4a9d55cdc38afb0cfdec8158
SHA256c76f6e44390f63e0a43bddef270f959c31899c65b93f139a0efbd2f2e625b1a8
SHA512628077dd26bd8a6bfdb1333095063796079a85aff8c90caac70be770f662fa7fa436bbae19610b8f25caaddc34024eb98f051e269bfbc5d85e8bf840a5790e79
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memory/1744-154-0x0000000000400000-0x000000000048B000-memory.dmpFilesize
556KB
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memory/1744-152-0x0000000000400000-0x000000000048B000-memory.dmpFilesize
556KB
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memory/1744-151-0x0000000000400000-0x000000000048B000-memory.dmpFilesize
556KB
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memory/1744-150-0x0000000000400000-0x000000000048B000-memory.dmpFilesize
556KB
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memory/1744-149-0x0000000000400000-0x000000000048B000-memory.dmpFilesize
556KB
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memory/1744-148-0x0000000000000000-mapping.dmp
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memory/2672-147-0x0000000000400000-0x000000000048E000-memory.dmpFilesize
568KB
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memory/2672-144-0x0000000000400000-0x000000000048E000-memory.dmpFilesize
568KB
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memory/2672-145-0x0000000000400000-0x000000000048E000-memory.dmpFilesize
568KB
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memory/2672-143-0x0000000000400000-0x000000000048E000-memory.dmpFilesize
568KB
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memory/2672-142-0x0000000000400000-0x000000000048E000-memory.dmpFilesize
568KB
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memory/2672-141-0x0000000000000000-mapping.dmp
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memory/3888-140-0x0000000075270000-0x0000000075821000-memory.dmpFilesize
5.7MB
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memory/3888-138-0x0000000075270000-0x0000000075821000-memory.dmpFilesize
5.7MB
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memory/3888-134-0x0000000000000000-mapping.dmp
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memory/4944-132-0x0000000075270000-0x0000000075821000-memory.dmpFilesize
5.7MB
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memory/4944-137-0x0000000075270000-0x0000000075821000-memory.dmpFilesize
5.7MB
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memory/4944-133-0x0000000075270000-0x0000000075821000-memory.dmpFilesize
5.7MB