Analysis
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max time kernel
149s -
max time network
150s -
platform
windows7_x64 -
resource
win7-20240708-en -
resource tags
arch:x64arch:x86image:win7-20240708-enlocale:en-usos:windows7-x64system -
submitted
22-07-2024 15:00
Static task
static1
Behavioral task
behavioral1
Sample
MalwareBazaar.exe
Resource
win7-20240708-en
Behavioral task
behavioral2
Sample
MalwareBazaar.exe
Resource
win10v2004-20240704-en
General
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Target
MalwareBazaar.exe
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Size
2.3MB
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MD5
2a65843b474feff5256bd673b4ff88ae
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SHA1
0c80fb17f84d478941ab4d51fddcccaf274da31d
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SHA256
d07cfaeced4e8bba1c9fdc8006dc80105cf654759c4d74d4d2d2964a0f6e9230
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SHA512
7f8a5a684273a031b648129870d493c9a2d63838a8179b8ce32e2c94f956c1a1196ef404d346e6ca42016489fa949b985bc598111dde0249c64c12a668b77292
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SSDEEP
49152:E2u/BMdg532rpsjCMqigjns2+a95PlpiH9MzMrcgt4hzNriBldyQJ/MqmG:DrpEZI0BnlJNh
Malware Config
Extracted
remcos
Dollar Man
178.23.190.118:52499
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audio_folder
MicRecords
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audio_record_time
5
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connect_delay
0
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connect_interval
1
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copy_file
remcos.exe
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copy_folder
Remcos
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delete_file
false
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hide_file
false
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hide_keylog_file
false
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install_flag
false
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keylog_crypt
false
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keylog_file
logs.dat
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keylog_flag
false
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keylog_folder
remcos
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mouse_option
false
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mutex
Rmc-SJ9MVF
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screenshot_crypt
false
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screenshot_flag
false
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screenshot_folder
Screenshots
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screenshot_path
%AppData%
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screenshot_time
10
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take_screenshot_option
false
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take_screenshot_time
5
Signatures
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Detected Nirsoft tools 8 IoCs
Free utilities often used by attackers which can steal passwords, product keys, etc.
Processes:
resource yara_rule behavioral1/memory/2864-26-0x0000000000400000-0x0000000000462000-memory.dmp Nirsoft behavioral1/memory/2864-33-0x0000000000400000-0x0000000000462000-memory.dmp Nirsoft behavioral1/memory/2764-32-0x0000000000400000-0x0000000000478000-memory.dmp Nirsoft behavioral1/memory/2764-25-0x0000000000400000-0x0000000000478000-memory.dmp Nirsoft behavioral1/memory/2856-34-0x0000000000400000-0x0000000000424000-memory.dmp Nirsoft behavioral1/memory/2856-35-0x0000000000400000-0x0000000000424000-memory.dmp Nirsoft behavioral1/memory/2764-40-0x0000000000400000-0x0000000000478000-memory.dmp Nirsoft behavioral1/memory/2864-43-0x0000000000400000-0x0000000000462000-memory.dmp Nirsoft -
NirSoft MailPassView 3 IoCs
Password recovery tool for various email clients
Processes:
resource yara_rule behavioral1/memory/2864-26-0x0000000000400000-0x0000000000462000-memory.dmp MailPassView behavioral1/memory/2864-33-0x0000000000400000-0x0000000000462000-memory.dmp MailPassView behavioral1/memory/2864-43-0x0000000000400000-0x0000000000462000-memory.dmp MailPassView -
NirSoft WebBrowserPassView 3 IoCs
Password recovery tool for various web browsers
Processes:
resource yara_rule behavioral1/memory/2764-32-0x0000000000400000-0x0000000000478000-memory.dmp WebBrowserPassView behavioral1/memory/2764-25-0x0000000000400000-0x0000000000478000-memory.dmp WebBrowserPassView behavioral1/memory/2764-40-0x0000000000400000-0x0000000000478000-memory.dmp WebBrowserPassView -
Accesses Microsoft Outlook accounts 1 TTPs 1 IoCs
Processes:
installutil.exedescription ioc Process Key opened \REGISTRY\USER\S-1-5-21-3551809350-4263495960-1443967649-1000\Software\Microsoft\Office\Outlook\OMI Account Manager\Accounts installutil.exe -
Suspicious use of SetThreadContext 4 IoCs
Processes:
MalwareBazaar.exeinstallutil.exedescription pid Process procid_target PID 2568 set thread context of 592 2568 MalwareBazaar.exe 31 PID 592 set thread context of 2764 592 installutil.exe 32 PID 592 set thread context of 2864 592 installutil.exe 33 PID 592 set thread context of 2856 592 installutil.exe 34 -
Suspicious behavior: EnumeratesProcesses 2 IoCs
Processes:
installutil.exepid Process 2764 installutil.exe 2764 installutil.exe -
Suspicious behavior: MapViewOfSection 3 IoCs
Processes:
installutil.exepid Process 592 installutil.exe 592 installutil.exe 592 installutil.exe -
Suspicious use of AdjustPrivilegeToken 1 IoCs
Processes:
installutil.exedescription pid Process Token: SeDebugPrivilege 2856 installutil.exe -
Suspicious use of SetWindowsHookEx 1 IoCs
Processes:
installutil.exepid Process 592 installutil.exe -
Suspicious use of WriteProcessMemory 40 IoCs
Processes:
MalwareBazaar.exeinstallutil.exedescription pid Process procid_target PID 2568 wrote to memory of 592 2568 MalwareBazaar.exe 31 PID 2568 wrote to memory of 592 2568 MalwareBazaar.exe 31 PID 2568 wrote to memory of 592 2568 MalwareBazaar.exe 31 PID 2568 wrote to memory of 592 2568 MalwareBazaar.exe 31 PID 2568 wrote to memory of 592 2568 MalwareBazaar.exe 31 PID 2568 wrote to memory of 592 2568 MalwareBazaar.exe 31 PID 2568 wrote to memory of 592 2568 MalwareBazaar.exe 31 PID 2568 wrote to memory of 592 2568 MalwareBazaar.exe 31 PID 2568 wrote to memory of 592 2568 MalwareBazaar.exe 31 PID 2568 wrote to memory of 592 2568 MalwareBazaar.exe 31 PID 2568 wrote to memory of 592 2568 MalwareBazaar.exe 31 PID 2568 wrote to memory of 592 2568 MalwareBazaar.exe 31 PID 2568 wrote to memory of 592 2568 MalwareBazaar.exe 31 PID 2568 wrote to memory of 592 2568 MalwareBazaar.exe 31 PID 2568 wrote to memory of 592 2568 MalwareBazaar.exe 31 PID 2568 wrote to memory of 592 2568 MalwareBazaar.exe 31 PID 592 wrote to memory of 2764 592 installutil.exe 32 PID 592 wrote to memory of 2764 592 installutil.exe 32 PID 592 wrote to memory of 2764 592 installutil.exe 32 PID 592 wrote to memory of 2764 592 installutil.exe 32 PID 592 wrote to memory of 2764 592 installutil.exe 32 PID 592 wrote to memory of 2764 592 installutil.exe 32 PID 592 wrote to memory of 2764 592 installutil.exe 32 PID 592 wrote to memory of 2764 592 installutil.exe 32 PID 592 wrote to memory of 2864 592 installutil.exe 33 PID 592 wrote to memory of 2864 592 installutil.exe 33 PID 592 wrote to memory of 2864 592 installutil.exe 33 PID 592 wrote to memory of 2864 592 installutil.exe 33 PID 592 wrote to memory of 2864 592 installutil.exe 33 PID 592 wrote to memory of 2864 592 installutil.exe 33 PID 592 wrote to memory of 2864 592 installutil.exe 33 PID 592 wrote to memory of 2864 592 installutil.exe 33 PID 592 wrote to memory of 2856 592 installutil.exe 34 PID 592 wrote to memory of 2856 592 installutil.exe 34 PID 592 wrote to memory of 2856 592 installutil.exe 34 PID 592 wrote to memory of 2856 592 installutil.exe 34 PID 592 wrote to memory of 2856 592 installutil.exe 34 PID 592 wrote to memory of 2856 592 installutil.exe 34 PID 592 wrote to memory of 2856 592 installutil.exe 34 PID 592 wrote to memory of 2856 592 installutil.exe 34
Processes
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C:\Users\Admin\AppData\Local\Temp\MalwareBazaar.exe"C:\Users\Admin\AppData\Local\Temp\MalwareBazaar.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:2568 -
C:\Windows\Microsoft.NET\Framework\v4.0.30319\installutil.exe"C:\Windows\Microsoft.NET\Framework\v4.0.30319\installutil.exe"2⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: MapViewOfSection
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:592 -
C:\Windows\Microsoft.NET\Framework\v4.0.30319\installutil.exeC:\Windows\Microsoft.NET\Framework\v4.0.30319\installutil.exe /stext "C:\Users\Admin\AppData\Local\Temp\oiekwzowkvnsofygpgtgvwyjsk"3⤵
- Suspicious behavior: EnumeratesProcesses
PID:2764
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C:\Windows\Microsoft.NET\Framework\v4.0.30319\installutil.exeC:\Windows\Microsoft.NET\Framework\v4.0.30319\installutil.exe /stext "C:\Users\Admin\AppData\Local\Temp\qkrcxszyydfxqlukzrghgjsatrnae"3⤵
- Accesses Microsoft Outlook accounts
PID:2864
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C:\Windows\Microsoft.NET\Framework\v4.0.30319\installutil.exeC:\Windows\Microsoft.NET\Framework\v4.0.30319\installutil.exe /stext "C:\Users\Admin\AppData\Local\Temp\bewnyksrmlxcaaioibsjjwnrbywjxtes"3⤵
- Suspicious use of AdjustPrivilegeToken
PID:2856
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
Loading Replay Monitor...
Downloads
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Filesize
144B
MD590ee62198320ce4a9e655536714fbb4c
SHA18aeaf62de4a9bae1730e846fda07b8677ae7b1c3
SHA2561ab837bed631f2dc2ddc5dbfd355e8959c9edbfc0d9c4c93de73b82792269551
SHA512afb79d6039d767a35ffb801879da70d20319df78f05e0d121b27ac6ce37d8880457d91becf03d2c4adf850fbb5d1bc1349435bc98af47ecb604786fc8f0810b9
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Filesize
2B
MD5f3b25701fe362ec84616a93a45ce9998
SHA1d62636d8caec13f04e28442a0a6fa1afeb024bbb
SHA256b3d510ef04275ca8e698e5b3cbb0ece3949ef9252f0cdc839e9ee347409a2209
SHA51298c5f56f3de340690c139e58eb7dac111979f0d4dffe9c4b24ff849510f4b6ffa9fd608c0a3de9ac3c9fd2190f0efaf715309061490f9755a9bfdf1c54ca0d84