Analysis
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max time kernel
144s -
max time network
141s -
platform
windows10-2004_x64 -
resource
win10v2004-20240226-en -
resource tags
arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system -
submitted
28-03-2024 19:01
Static task
static1
Behavioral task
behavioral1
Sample
79fbd35cae4148d9053cd4590b6d41c0.exe
Resource
win7-20240215-en
General
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Target
79fbd35cae4148d9053cd4590b6d41c0.exe
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Size
1.8MB
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MD5
79fbd35cae4148d9053cd4590b6d41c0
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SHA1
3548d8fa1f242206447224068c16ffd30278ede3
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SHA256
9c1751ba73fe53ed9385f24750212c6e785843e4c63dbafec8f95d3e6a5088ef
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SHA512
babf970ee423976f68864c67d9ec7a0771be65465b4ea3c498fd9a9ab98f08124be2a0ec16f7952b237d27d778ef49ef9f48fe8ad66dd9a3f840ffc9a5658a40
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SSDEEP
49152:rOixuZfOJofYPg+EevCu7OgYZkwtOc/Xe+vv:rOgIfOJosF/jYZk/cv
Malware Config
Extracted
amadey
4.17
http://185.215.113.32
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install_dir
00c07260dc
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install_file
explorgu.exe
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strings_key
461809bd97c251ba0c0c8450c7055f1d
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url_paths
/yandex/index.php
Signatures
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Identifies VirtualBox via ACPI registry values (likely anti-VM) 2 TTPs 2 IoCs
Processes:
79fbd35cae4148d9053cd4590b6d41c0.exeexplorgu.exedescription ioc process Key opened \REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__ 79fbd35cae4148d9053cd4590b6d41c0.exe Key opened \REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__ explorgu.exe -
Blocklisted process makes network request 2 IoCs
Processes:
rundll32.exerundll32.exeflow pid process 47 1096 rundll32.exe 48 3536 rundll32.exe -
Downloads MZ/PE file
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Checks BIOS information in registry 2 TTPs 4 IoCs
BIOS information is often read in order to detect sandboxing environments.
Processes:
explorgu.exe79fbd35cae4148d9053cd4590b6d41c0.exedescription ioc process Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion explorgu.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion explorgu.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion 79fbd35cae4148d9053cd4590b6d41c0.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion 79fbd35cae4148d9053cd4590b6d41c0.exe -
Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
Processes:
explorgu.exedescription ioc process Key value queried \REGISTRY\USER\S-1-5-21-566096764-1992588923-1249862864-1000\Control Panel\International\Geo\Nation explorgu.exe -
Executes dropped EXE 1 IoCs
Processes:
explorgu.exepid process 3440 explorgu.exe -
Identifies Wine through registry keys 2 TTPs 2 IoCs
Wine is a compatibility layer capable of running Windows applications, which can be used as sandboxing environment.
Processes:
explorgu.exe79fbd35cae4148d9053cd4590b6d41c0.exedescription ioc process Key opened \REGISTRY\USER\S-1-5-21-566096764-1992588923-1249862864-1000\Software\Wine explorgu.exe Key opened \REGISTRY\USER\S-1-5-21-566096764-1992588923-1249862864-1000\Software\Wine 79fbd35cae4148d9053cd4590b6d41c0.exe -
Loads dropped DLL 3 IoCs
Processes:
rundll32.exerundll32.exerundll32.exepid process 1336 rundll32.exe 1096 rundll32.exe 3536 rundll32.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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Suspicious use of NtSetInformationThreadHideFromDebugger 2 IoCs
Processes:
79fbd35cae4148d9053cd4590b6d41c0.exeexplorgu.exepid process 3220 79fbd35cae4148d9053cd4590b6d41c0.exe 3440 explorgu.exe -
Drops file in Windows directory 1 IoCs
Processes:
79fbd35cae4148d9053cd4590b6d41c0.exedescription ioc process File created C:\Windows\Tasks\explorgu.job 79fbd35cae4148d9053cd4590b6d41c0.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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Suspicious behavior: EnumeratesProcesses 16 IoCs
Processes:
79fbd35cae4148d9053cd4590b6d41c0.exeexplorgu.exerundll32.exepowershell.exepid process 3220 79fbd35cae4148d9053cd4590b6d41c0.exe 3220 79fbd35cae4148d9053cd4590b6d41c0.exe 3440 explorgu.exe 3440 explorgu.exe 1096 rundll32.exe 1096 rundll32.exe 1096 rundll32.exe 1096 rundll32.exe 1096 rundll32.exe 1096 rundll32.exe 1096 rundll32.exe 1096 rundll32.exe 1096 rundll32.exe 1096 rundll32.exe 756 powershell.exe 756 powershell.exe -
Suspicious use of AdjustPrivilegeToken 1 IoCs
Processes:
powershell.exedescription pid process Token: SeDebugPrivilege 756 powershell.exe -
Suspicious use of WriteProcessMemory 12 IoCs
Processes:
explorgu.exerundll32.exerundll32.exedescription pid process target process PID 3440 wrote to memory of 1336 3440 explorgu.exe rundll32.exe PID 3440 wrote to memory of 1336 3440 explorgu.exe rundll32.exe PID 3440 wrote to memory of 1336 3440 explorgu.exe rundll32.exe PID 1336 wrote to memory of 1096 1336 rundll32.exe rundll32.exe PID 1336 wrote to memory of 1096 1336 rundll32.exe rundll32.exe PID 1096 wrote to memory of 1292 1096 rundll32.exe netsh.exe PID 1096 wrote to memory of 1292 1096 rundll32.exe netsh.exe PID 1096 wrote to memory of 756 1096 rundll32.exe powershell.exe PID 1096 wrote to memory of 756 1096 rundll32.exe powershell.exe PID 3440 wrote to memory of 3536 3440 explorgu.exe rundll32.exe PID 3440 wrote to memory of 3536 3440 explorgu.exe rundll32.exe PID 3440 wrote to memory of 3536 3440 explorgu.exe rundll32.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\79fbd35cae4148d9053cd4590b6d41c0.exe"C:\Users\Admin\AppData\Local\Temp\79fbd35cae4148d9053cd4590b6d41c0.exe"1⤵
- Identifies VirtualBox via ACPI registry values (likely anti-VM)
- Checks BIOS information in registry
- Identifies Wine through registry keys
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Drops file in Windows directory
- Suspicious behavior: EnumeratesProcesses
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C:\Users\Admin\AppData\Local\Temp\00c07260dc\explorgu.exeC:\Users\Admin\AppData\Local\Temp\00c07260dc\explorgu.exe1⤵
- Identifies VirtualBox via ACPI registry values (likely anti-VM)
- Checks BIOS information in registry
- Checks computer location settings
- Executes dropped EXE
- Identifies Wine through registry keys
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\rundll32.exe"C:\Windows\System32\rundll32.exe" C:\Users\Admin\AppData\Roaming\006700e5a2ab05\cred64.dll, Main2⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
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C:\Windows\system32\rundll32.exe"C:\Windows\System32\rundll32.exe" C:\Users\Admin\AppData\Roaming\006700e5a2ab05\cred64.dll, Main3⤵
- Blocklisted process makes network request
- Loads dropped DLL
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
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C:\Windows\system32\netsh.exenetsh wlan show profiles4⤵
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C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exepowershell -Command Compress-Archive -Path 'C:\Users\Admin\AppData\Local\Temp\_Files_\' -DestinationPath 'C:\Users\Admin\AppData\Local\Temp\660967641992_Desktop.zip' -CompressionLevel Optimal4⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
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C:\Windows\SysWOW64\rundll32.exe"C:\Windows\System32\rundll32.exe" C:\Users\Admin\AppData\Roaming\006700e5a2ab05\clip64.dll, Main2⤵
- Blocklisted process makes network request
- Loads dropped DLL
Network
MITRE ATT&CK Matrix ATT&CK v13
Replay Monitor
Loading Replay Monitor...
Downloads
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C:\Users\Admin\AppData\Local\Temp\00c07260dc\explorgu.exeFilesize
1.8MB
MD579fbd35cae4148d9053cd4590b6d41c0
SHA13548d8fa1f242206447224068c16ffd30278ede3
SHA2569c1751ba73fe53ed9385f24750212c6e785843e4c63dbafec8f95d3e6a5088ef
SHA512babf970ee423976f68864c67d9ec7a0771be65465b4ea3c498fd9a9ab98f08124be2a0ec16f7952b237d27d778ef49ef9f48fe8ad66dd9a3f840ffc9a5658a40
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C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_l3v5r1js.ko4.ps1Filesize
60B
MD5d17fe0a3f47be24a6453e9ef58c94641
SHA16ab83620379fc69f80c0242105ddffd7d98d5d9d
SHA25696ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
SHA5125b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82
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C:\Users\Admin\AppData\Roaming\006700e5a2ab05\clip64.dllFilesize
109KB
MD52afdbe3b99a4736083066a13e4b5d11a
SHA14d4856cf02b3123ac16e63d4a448cdbcb1633546
SHA2568d31b39170909595b518b1a03e9ec950540fabd545ed14817cac5c84b91599ee
SHA512d89b3c46854153e60e3fa825b394344eee33936d7dbf186af9d95c9adae54428609e3bf21a18d38fce3d96f3e0b8e4e0ed25cb5004fbe288de3aef3a85b1d93f
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C:\Users\Admin\AppData\Roaming\006700e5a2ab05\cred64.dllFilesize
1.2MB
MD592fbdfccf6a63acef2743631d16652a7
SHA1971968b1378dd89d59d7f84bf92f16fc68664506
SHA256b4588feacc183cd5a089f9bb950827b75df04bd5a6e67c95ff258e4a34aa0d72
SHA512b8ea216d4a59d8858fd4128abb555f8dcf3acca9138e663b488f09dc5200db6dc11ecc235a355e801145bbbb44d7beac6147949d75d78b32fe9cfd2fa200d117
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memory/756-65-0x00007FFF75B90000-0x00007FFF76651000-memory.dmpFilesize
10.8MB
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memory/756-59-0x000001A5C7890000-0x000001A5C789A000-memory.dmpFilesize
40KB
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memory/756-58-0x000001A5C78A0000-0x000001A5C78B2000-memory.dmpFilesize
72KB
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memory/756-57-0x000001A5C5360000-0x000001A5C5370000-memory.dmpFilesize
64KB
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memory/756-55-0x000001A5C5360000-0x000001A5C5370000-memory.dmpFilesize
64KB
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memory/756-54-0x000001A5C5360000-0x000001A5C5370000-memory.dmpFilesize
64KB
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memory/756-53-0x00007FFF75B90000-0x00007FFF76651000-memory.dmpFilesize
10.8MB
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memory/756-48-0x000001A5C7510000-0x000001A5C7532000-memory.dmpFilesize
136KB
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memory/3220-11-0x0000000004E40000-0x0000000004E41000-memory.dmpFilesize
4KB
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memory/3220-0-0x00000000002F0000-0x00000000007A5000-memory.dmpFilesize
4.7MB
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memory/3220-1-0x0000000077944000-0x0000000077946000-memory.dmpFilesize
8KB
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memory/3220-9-0x0000000004E20000-0x0000000004E21000-memory.dmpFilesize
4KB
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memory/3220-8-0x0000000004DD0000-0x0000000004DD1000-memory.dmpFilesize
4KB
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memory/3220-7-0x0000000004DC0000-0x0000000004DC1000-memory.dmpFilesize
4KB
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memory/3220-6-0x0000000004E30000-0x0000000004E31000-memory.dmpFilesize
4KB
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memory/3220-5-0x0000000004DE0000-0x0000000004DE1000-memory.dmpFilesize
4KB
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memory/3220-4-0x0000000004E00000-0x0000000004E01000-memory.dmpFilesize
4KB
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memory/3220-16-0x00000000002F0000-0x00000000007A5000-memory.dmpFilesize
4.7MB
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memory/3220-3-0x0000000004DF0000-0x0000000004DF1000-memory.dmpFilesize
4KB
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memory/3220-2-0x00000000002F0000-0x00000000007A5000-memory.dmpFilesize
4.7MB
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memory/3220-10-0x0000000004E50000-0x0000000004E51000-memory.dmpFilesize
4KB
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memory/3440-23-0x0000000005170000-0x0000000005171000-memory.dmpFilesize
4KB
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memory/3440-20-0x0000000000590000-0x0000000000A45000-memory.dmpFilesize
4.7MB
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memory/3440-29-0x00000000051D0000-0x00000000051D1000-memory.dmpFilesize
4KB
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memory/3440-28-0x00000000051E0000-0x00000000051E1000-memory.dmpFilesize
4KB
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memory/3440-21-0x0000000005180000-0x0000000005181000-memory.dmpFilesize
4KB
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memory/3440-24-0x00000000051C0000-0x00000000051C1000-memory.dmpFilesize
4KB
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memory/3440-25-0x0000000005150000-0x0000000005151000-memory.dmpFilesize
4KB
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memory/3440-56-0x0000000000590000-0x0000000000A45000-memory.dmpFilesize
4.7MB
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memory/3440-26-0x0000000005160000-0x0000000005161000-memory.dmpFilesize
4KB
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memory/3440-27-0x00000000051B0000-0x00000000051B1000-memory.dmpFilesize
4KB
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memory/3440-22-0x0000000005190000-0x0000000005191000-memory.dmpFilesize
4KB
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memory/3440-30-0x0000000000590000-0x0000000000A45000-memory.dmpFilesize
4.7MB
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memory/3440-66-0x0000000000590000-0x0000000000A45000-memory.dmpFilesize
4.7MB
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memory/3440-67-0x0000000000590000-0x0000000000A45000-memory.dmpFilesize
4.7MB
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memory/3440-19-0x0000000000590000-0x0000000000A45000-memory.dmpFilesize
4.7MB
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memory/3440-79-0x0000000000590000-0x0000000000A45000-memory.dmpFilesize
4.7MB
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memory/3440-80-0x0000000000590000-0x0000000000A45000-memory.dmpFilesize
4.7MB
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memory/3440-81-0x0000000000590000-0x0000000000A45000-memory.dmpFilesize
4.7MB
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memory/3440-82-0x0000000000590000-0x0000000000A45000-memory.dmpFilesize
4.7MB
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memory/3440-83-0x0000000000590000-0x0000000000A45000-memory.dmpFilesize
4.7MB
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memory/3440-84-0x0000000000590000-0x0000000000A45000-memory.dmpFilesize
4.7MB
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memory/3440-85-0x0000000000590000-0x0000000000A45000-memory.dmpFilesize
4.7MB