Analysis
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max time kernel
148s -
max time network
154s -
platform
windows10-2004_x64 -
resource
win10v2004-20240319-en -
resource tags
arch:x64arch:x86image:win10v2004-20240319-enlocale:en-usos:windows10-2004-x64system -
submitted
26-03-2024 19:02
Static task
static1
Behavioral task
behavioral1
Sample
a8bfbfee006bab5f05721b2e5f16866efe2d9ea0a07f36649c0226b56bc9871e.exe
Resource
win10v2004-20240319-en
General
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Target
a8bfbfee006bab5f05721b2e5f16866efe2d9ea0a07f36649c0226b56bc9871e.exe
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Size
1.8MB
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MD5
80186d924ae6d515238c30f5dabe5dc8
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SHA1
b378c980669df3fe1ea89b96859b738ef8ea3e79
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SHA256
a8bfbfee006bab5f05721b2e5f16866efe2d9ea0a07f36649c0226b56bc9871e
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SHA512
43c77c42f7ebf0f652f1bcb141d7edd5946404f688106dc8b8d76899938513f2c540fb7456c128f99f83cb477591fa4591cc6bc8aa811a46b0fa50ffe92ce725
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SSDEEP
24576:2HOFOBO+pz4ZBrWVxk6F7BqyBs5J8EZCfHgFnUXzPZmZV7mx7JqW8phBSpuxmoKO:GLrWjWVxhNBqyOHeHi6BmZCNcFSMIxH
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:
a8bfbfee006bab5f05721b2e5f16866efe2d9ea0a07f36649c0226b56bc9871e.exeexplorgu.exedescription ioc process Key opened \REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__ a8bfbfee006bab5f05721b2e5f16866efe2d9ea0a07f36649c0226b56bc9871e.exe Key opened \REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__ explorgu.exe -
Blocklisted process makes network request 2 IoCs
Processes:
rundll32.exerundll32.exeflow pid process 61 3404 rundll32.exe 62 4392 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:
a8bfbfee006bab5f05721b2e5f16866efe2d9ea0a07f36649c0226b56bc9871e.exeexplorgu.exedescription ioc process Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion a8bfbfee006bab5f05721b2e5f16866efe2d9ea0a07f36649c0226b56bc9871e.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion a8bfbfee006bab5f05721b2e5f16866efe2d9ea0a07f36649c0226b56bc9871e.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion explorgu.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion explorgu.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-1-5-21-817259280-2658881748-983986378-1000\Control Panel\International\Geo\Nation explorgu.exe -
Executes dropped EXE 1 IoCs
Processes:
explorgu.exepid process 4204 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:
a8bfbfee006bab5f05721b2e5f16866efe2d9ea0a07f36649c0226b56bc9871e.exeexplorgu.exedescription ioc process Key opened \REGISTRY\USER\S-1-5-21-817259280-2658881748-983986378-1000\Software\Wine a8bfbfee006bab5f05721b2e5f16866efe2d9ea0a07f36649c0226b56bc9871e.exe Key opened \REGISTRY\USER\S-1-5-21-817259280-2658881748-983986378-1000\Software\Wine explorgu.exe -
Loads dropped DLL 3 IoCs
Processes:
rundll32.exerundll32.exerundll32.exepid process 2972 rundll32.exe 3404 rundll32.exe 4392 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:
a8bfbfee006bab5f05721b2e5f16866efe2d9ea0a07f36649c0226b56bc9871e.exeexplorgu.exepid process 2392 a8bfbfee006bab5f05721b2e5f16866efe2d9ea0a07f36649c0226b56bc9871e.exe 4204 explorgu.exe -
Drops file in Windows directory 1 IoCs
Processes:
a8bfbfee006bab5f05721b2e5f16866efe2d9ea0a07f36649c0226b56bc9871e.exedescription ioc process File created C:\Windows\Tasks\explorgu.job a8bfbfee006bab5f05721b2e5f16866efe2d9ea0a07f36649c0226b56bc9871e.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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Suspicious behavior: EnumeratesProcesses 17 IoCs
Processes:
a8bfbfee006bab5f05721b2e5f16866efe2d9ea0a07f36649c0226b56bc9871e.exeexplorgu.exerundll32.exepowershell.exepid process 2392 a8bfbfee006bab5f05721b2e5f16866efe2d9ea0a07f36649c0226b56bc9871e.exe 2392 a8bfbfee006bab5f05721b2e5f16866efe2d9ea0a07f36649c0226b56bc9871e.exe 4204 explorgu.exe 4204 explorgu.exe 3404 rundll32.exe 3404 rundll32.exe 3404 rundll32.exe 3404 rundll32.exe 3404 rundll32.exe 3404 rundll32.exe 3404 rundll32.exe 3404 rundll32.exe 3404 rundll32.exe 3404 rundll32.exe 440 powershell.exe 440 powershell.exe 440 powershell.exe -
Suspicious use of AdjustPrivilegeToken 1 IoCs
Processes:
powershell.exedescription pid process Token: SeDebugPrivilege 440 powershell.exe -
Suspicious use of FindShellTrayWindow 1 IoCs
Processes:
a8bfbfee006bab5f05721b2e5f16866efe2d9ea0a07f36649c0226b56bc9871e.exepid process 2392 a8bfbfee006bab5f05721b2e5f16866efe2d9ea0a07f36649c0226b56bc9871e.exe -
Suspicious use of WriteProcessMemory 12 IoCs
Processes:
explorgu.exerundll32.exerundll32.exedescription pid process target process PID 4204 wrote to memory of 2972 4204 explorgu.exe rundll32.exe PID 4204 wrote to memory of 2972 4204 explorgu.exe rundll32.exe PID 4204 wrote to memory of 2972 4204 explorgu.exe rundll32.exe PID 2972 wrote to memory of 3404 2972 rundll32.exe rundll32.exe PID 2972 wrote to memory of 3404 2972 rundll32.exe rundll32.exe PID 3404 wrote to memory of 1676 3404 rundll32.exe netsh.exe PID 3404 wrote to memory of 1676 3404 rundll32.exe netsh.exe PID 3404 wrote to memory of 440 3404 rundll32.exe powershell.exe PID 3404 wrote to memory of 440 3404 rundll32.exe powershell.exe PID 4204 wrote to memory of 4392 4204 explorgu.exe rundll32.exe PID 4204 wrote to memory of 4392 4204 explorgu.exe rundll32.exe PID 4204 wrote to memory of 4392 4204 explorgu.exe rundll32.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\a8bfbfee006bab5f05721b2e5f16866efe2d9ea0a07f36649c0226b56bc9871e.exe"C:\Users\Admin\AppData\Local\Temp\a8bfbfee006bab5f05721b2e5f16866efe2d9ea0a07f36649c0226b56bc9871e.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
- Suspicious use of FindShellTrayWindow
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C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --no-appcompat-clear --mojo-platform-channel-handle=3844 --field-trial-handle=2320,i,3025503729105798828,9325691672526736153,262144 --variations-seed-version /prefetch:81⤵
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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\172592802658_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
MD580186d924ae6d515238c30f5dabe5dc8
SHA1b378c980669df3fe1ea89b96859b738ef8ea3e79
SHA256a8bfbfee006bab5f05721b2e5f16866efe2d9ea0a07f36649c0226b56bc9871e
SHA51243c77c42f7ebf0f652f1bcb141d7edd5946404f688106dc8b8d76899938513f2c540fb7456c128f99f83cb477591fa4591cc6bc8aa811a46b0fa50ffe92ce725
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C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_ite5uo4t.bbi.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/440-68-0x00007FF9B4F50000-0x00007FF9B5A11000-memory.dmpFilesize
10.8MB
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memory/440-62-0x000001C9C3530000-0x000001C9C353A000-memory.dmpFilesize
40KB
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memory/440-61-0x000001C9C3550000-0x000001C9C3562000-memory.dmpFilesize
72KB
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memory/440-60-0x000001C9C30C0000-0x000001C9C30D0000-memory.dmpFilesize
64KB
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memory/440-59-0x000001C9C30C0000-0x000001C9C30D0000-memory.dmpFilesize
64KB
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memory/440-57-0x00007FF9B4F50000-0x00007FF9B5A11000-memory.dmpFilesize
10.8MB
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memory/440-58-0x000001C9C30C0000-0x000001C9C30D0000-memory.dmpFilesize
64KB
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memory/440-53-0x000001C9C3200000-0x000001C9C3222000-memory.dmpFilesize
136KB
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memory/2392-11-0x0000000005370000-0x0000000005371000-memory.dmpFilesize
4KB
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memory/2392-4-0x0000000005330000-0x0000000005331000-memory.dmpFilesize
4KB
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memory/2392-1-0x0000000077B64000-0x0000000077B66000-memory.dmpFilesize
8KB
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memory/2392-2-0x0000000000070000-0x0000000000534000-memory.dmpFilesize
4.8MB
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memory/2392-3-0x0000000005320000-0x0000000005321000-memory.dmpFilesize
4KB
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memory/2392-16-0x0000000000070000-0x0000000000534000-memory.dmpFilesize
4.8MB
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memory/2392-5-0x0000000005310000-0x0000000005311000-memory.dmpFilesize
4KB
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memory/2392-6-0x0000000005360000-0x0000000005361000-memory.dmpFilesize
4KB
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memory/2392-7-0x00000000052F0000-0x00000000052F1000-memory.dmpFilesize
4KB
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memory/2392-8-0x0000000005300000-0x0000000005301000-memory.dmpFilesize
4KB
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memory/2392-9-0x0000000005350000-0x0000000005351000-memory.dmpFilesize
4KB
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memory/2392-10-0x0000000005380000-0x0000000005381000-memory.dmpFilesize
4KB
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memory/2392-0-0x0000000000070000-0x0000000000534000-memory.dmpFilesize
4.8MB
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memory/4204-26-0x0000000004F30000-0x0000000004F31000-memory.dmpFilesize
4KB
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memory/4204-81-0x0000000000F60000-0x0000000001424000-memory.dmpFilesize
4.8MB
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memory/4204-32-0x0000000000F60000-0x0000000001424000-memory.dmpFilesize
4.8MB
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memory/4204-33-0x0000000000F60000-0x0000000001424000-memory.dmpFilesize
4.8MB
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memory/4204-29-0x0000000000F60000-0x0000000001424000-memory.dmpFilesize
4.8MB
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memory/4204-46-0x0000000000F60000-0x0000000001424000-memory.dmpFilesize
4.8MB
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memory/4204-27-0x0000000004FA0000-0x0000000004FA1000-memory.dmpFilesize
4KB
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memory/4204-30-0x0000000000F60000-0x0000000001424000-memory.dmpFilesize
4.8MB
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memory/4204-83-0x0000000000F60000-0x0000000001424000-memory.dmpFilesize
4.8MB
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memory/4204-31-0x0000000000F60000-0x0000000001424000-memory.dmpFilesize
4.8MB
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memory/4204-28-0x0000000004F90000-0x0000000004F91000-memory.dmpFilesize
4KB
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memory/4204-23-0x0000000004F40000-0x0000000004F41000-memory.dmpFilesize
4KB
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memory/4204-21-0x0000000004F50000-0x0000000004F51000-memory.dmpFilesize
4KB
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memory/4204-22-0x0000000004F60000-0x0000000004F61000-memory.dmpFilesize
4KB
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memory/4204-20-0x0000000000F60000-0x0000000001424000-memory.dmpFilesize
4.8MB
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memory/4204-69-0x0000000000F60000-0x0000000001424000-memory.dmpFilesize
4.8MB
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memory/4204-19-0x0000000000F60000-0x0000000001424000-memory.dmpFilesize
4.8MB
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memory/4204-25-0x0000000004F20000-0x0000000004F21000-memory.dmpFilesize
4KB
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memory/4204-82-0x0000000000F60000-0x0000000001424000-memory.dmpFilesize
4.8MB
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memory/4204-24-0x0000000004F80000-0x0000000004F81000-memory.dmpFilesize
4KB