Analysis
- max time kernel
147s - max time network
158s - platform
windows10-2004_x64 - resource
win10v2004-20231215-en - resource tags
arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system - submitted
04/02/2024, 19:15
Static task
static1
1 signatures
Behavioral task
behavioral1
Sample
cf361aea1198ea2ea7e608ac3950eab8.exe
Resource
win7-20231215-en
6 signatures
150 seconds
General
- Target cf361aea1198ea2ea7e608ac3950eab8.exe
- Size 2.5MB
- Sample240204-xx9d8aahdk
- SHA256 d12b78b7be43750a57e10e2f989f01dd22fb3a3c8bcec4d15877be0d9dffc3ef
- MD5 cf361aea1198ea2ea7e608ac3950eab8
- SHA1 48575acaa251918ad515728b01f68cbc2ee694a5
- SHA512 201677f87d496343bd71ac2ebacba77d5f28226b0721d91fe13cfef4945d50db17af504a2577dfc3bba7492a5db8a5158b02da362bb8baacb646c9680ef53f5a
- SSDEEP 49152:rm+I/bulQHFc67Tms3Rhg7U28gM4HC7J6L7WRm+qoqaE1aYJ8/0EP3KNfuvLzMJD:rm+I/6lka6/pRIUTgM4uJUic+/qa+a5V
- MD5 SHA1 SHA512 SSDEEP
Malware Config
Extracted
Family
-
amadey
Version
-
4.17
C2
-
http://185.215.113.32
Attributes
-
install_dir
00c07260dc
-
install_file
explorgu.exe
-
strings_key
461809bd97c251ba0c0c8450c7055f1d
-
url_paths
/yandex/index.php
rc4.plain
Signatures
- Blocklisted process makes network request 2 IoCs
flow pid Process 37 3904 rundll32.exe 40 2204 rundll32.exe - Downloads MZ/PE file
- Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
description ioc Process Key value queried \REGISTRY\USER\S-1-5-21-635608581-3370340891-292606865-1000\Control Panel\International\Geo\Nation explorgu.exe - Executes dropped EXE 1 IoCs
pid Process 3372 explorgu.exe - Loads dropped DLL 3 IoCs
pid Process 1420 rundll32.exe 3904 rundll32.exe 2204 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.
- Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
- Suspicious use of NtSetInformationThreadHideFromDebugger 13 IoCs
pid Process 4268 cf361aea1198ea2ea7e608ac3950eab8.exe 3372 explorgu.exe 3372 explorgu.exe 3372 explorgu.exe 3372 explorgu.exe 3372 explorgu.exe 3372 explorgu.exe 3372 explorgu.exe 3372 explorgu.exe 3372 explorgu.exe 3372 explorgu.exe 3372 explorgu.exe 3372 explorgu.exe - Drops file in Windows directory 1 IoCs
description ioc Process File created C:\Windows\Tasks\explorgu.job cf361aea1198ea2ea7e608ac3950eab8.exe - Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
- Suspicious behavior: EnumeratesProcesses 12 IoCs
pid Process 3904 rundll32.exe 3904 rundll32.exe 3904 rundll32.exe 3904 rundll32.exe 3904 rundll32.exe 3904 rundll32.exe 3904 rundll32.exe 3904 rundll32.exe 3904 rundll32.exe 3904 rundll32.exe 840 powershell.exe 840 powershell.exe - Suspicious use of AdjustPrivilegeToken 1 IoCs
description pid Process Token: SeDebugPrivilege 840 powershell.exe - Suspicious use of FindShellTrayWindow 1 IoCs
pid Process 4268 cf361aea1198ea2ea7e608ac3950eab8.exe - Suspicious use of SetWindowsHookEx 2 IoCs
pid Process 4268 cf361aea1198ea2ea7e608ac3950eab8.exe 3372 explorgu.exe - Suspicious use of WriteProcessMemory 12 IoCs
description pid Process procid_target PID 3372 wrote to memory of 1420 3372 explorgu.exe 93 PID 3372 wrote to memory of 1420 3372 explorgu.exe 93 PID 3372 wrote to memory of 1420 3372 explorgu.exe 93 PID 1420 wrote to memory of 3904 1420 rundll32.exe 94 PID 1420 wrote to memory of 3904 1420 rundll32.exe 94 PID 3904 wrote to memory of 1124 3904 rundll32.exe 95 PID 3904 wrote to memory of 1124 3904 rundll32.exe 95 PID 3904 wrote to memory of 840 3904 rundll32.exe 97 PID 3904 wrote to memory of 840 3904 rundll32.exe 97 PID 3372 wrote to memory of 2204 3372 explorgu.exe 99 PID 3372 wrote to memory of 2204 3372 explorgu.exe 99 PID 3372 wrote to memory of 2204 3372 explorgu.exe 99
Processes
-
C:\Users\Admin\AppData\Local\Temp\cf361aea1198ea2ea7e608ac3950eab8.exe"C:\Users\Admin\AppData\Local\Temp\cf361aea1198ea2ea7e608ac3950eab8.exe"1⤵
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Drops file in Windows directory
- Suspicious use of FindShellTrayWindow
- Suspicious use of SetWindowsHookEx
PID:4268
-
C:\Users\Admin\AppData\Local\Temp\00c07260dc\explorgu.exeC:\Users\Admin\AppData\Local\Temp\00c07260dc\explorgu.exe1⤵
- Checks computer location settings
- Executes dropped EXE
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:3372 -
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
PID:1420 -
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
PID:3904 -
C:\Windows\system32\netsh.exenetsh wlan show profiles4⤵PID:1124
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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\356085813370_Desktop.zip' -CompressionLevel Optimal4⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:840
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-
-
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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
PID:2204
-
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
- Path C:\Users\Admin\AppData\Local\Temp\00c07260dc\explorgu.exe
- Size 2.5MB
- SHA256 d12b78b7be43750a57e10e2f989f01dd22fb3a3c8bcec4d15877be0d9dffc3ef
- MD5 cf361aea1198ea2ea7e608ac3950eab8
- SHA1 48575acaa251918ad515728b01f68cbc2ee694a5
- SHA512 201677f87d496343bd71ac2ebacba77d5f28226b0721d91fe13cfef4945d50db17af504a2577dfc3bba7492a5db8a5158b02da362bb8baacb646c9680ef53f5a
- SSDEEP 49152:rm+I/bulQHFc67Tms3Rhg7U28gM4HC7J6L7WRm+qoqaE1aYJ8/0EP3KNfuvLzMJD:rm+I/6lka6/pRIUTgM4uJUic+/qa+a5V
- MD5 SHA1 SHA512 SSDEEP
- Path C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_zqet3p0x.v0x.ps1
- Size 60B
- SHA256 96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
- MD5 d17fe0a3f47be24a6453e9ef58c94641
- SHA1 6ab83620379fc69f80c0242105ddffd7d98d5d9d
- SHA512 5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82
- MD5 SHA1 SHA512
- Path C:\Users\Admin\AppData\Roaming\006700e5a2ab05\clip64.dll
- Size 109KB
- SHA256 8d31b39170909595b518b1a03e9ec950540fabd545ed14817cac5c84b91599ee
- MD5 2afdbe3b99a4736083066a13e4b5d11a
- SHA1 4d4856cf02b3123ac16e63d4a448cdbcb1633546
- SHA512 d89b3c46854153e60e3fa825b394344eee33936d7dbf186af9d95c9adae54428609e3bf21a18d38fce3d96f3e0b8e4e0ed25cb5004fbe288de3aef3a85b1d93f
- SSDEEP 3072:xE5kJp+s5aP40bGsuZR+SVhJQ3ICRv4l:m5ka2obfuZR7Py4l
- MD5 SHA1 SHA512 SSDEEP
- Path C:\Users\Admin\AppData\Roaming\006700e5a2ab05\cred64.dll
- Size 1.2MB
- SHA256 b4588feacc183cd5a089f9bb950827b75df04bd5a6e67c95ff258e4a34aa0d72
- MD5 92fbdfccf6a63acef2743631d16652a7
- SHA1 971968b1378dd89d59d7f84bf92f16fc68664506
- SHA512 b8ea216d4a59d8858fd4128abb555f8dcf3acca9138e663b488f09dc5200db6dc11ecc235a355e801145bbbb44d7beac6147949d75d78b32fe9cfd2fa200d117
- SSDEEP 24576:ZvkQL6YY4wMPSYZofkf0Gh6Pi41+a9uyP5dgg/l+yC7:ZsMPSYcS5wPi095PbgWl
- MD5 SHA1 SHA512 SSDEEP