Analysis
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max time kernel
109s -
max time network
130s -
platform
windows10-2004_x64 -
resource
win10v2004-20220812-en -
resource tags
arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system -
submitted
30-11-2022 10:01
Static task
static1
Behavioral task
behavioral1
Sample
1b55a8bf7affc37d19343b1629b06a63.exe
Resource
win7-20220812-en
Behavioral task
behavioral2
Sample
1b55a8bf7affc37d19343b1629b06a63.exe
Resource
win10v2004-20220812-en
General
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Target
1b55a8bf7affc37d19343b1629b06a63.exe
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Size
243KB
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MD5
1b55a8bf7affc37d19343b1629b06a63
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SHA1
4591134d553facb25e952490f55d18833a51e10e
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SHA256
4f8f78fa26b8cec4ac3aebe88562c34cb33f500576842ed9fdfd2dc24554feae
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SHA512
6f7618bb43f7f4d5bbc45bbbed392ea295b3519f20b9ab9e8e1a8e19b4bcc3760431c622a9785d1bb28b82fb5cdb17cc33ea7396d6f7d94dd763dc6b6dd9d6e3
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SSDEEP
6144:9MQbFuoFCbBNLZDM/DzkJObj6r3Bp/v3INK0gt:9MQbdEf1kfe+Gr3Bp3t
Malware Config
Extracted
amadey
3.50
77.73.133.72/hfk3vK9/index.php
Signatures
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Detect Amadey credential stealer module 4 IoCs
Processes:
resource yara_rule C:\Users\Admin\AppData\Roaming\f49dfc5e4e2508\cred64.dll amadey_cred_module C:\Users\Admin\AppData\Roaming\f49dfc5e4e2508\cred64.dll amadey_cred_module C:\Users\Admin\AppData\Roaming\f49dfc5e4e2508\cred64.dll amadey_cred_module behavioral2/memory/1884-153-0x00000000001B0000-0x00000000001D4000-memory.dmp amadey_cred_module -
Blocklisted process makes network request 1 IoCs
Processes:
rundll32.exeflow pid process 40 1884 rundll32.exe -
Downloads MZ/PE file
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Executes dropped EXE 3 IoCs
Processes:
gntuud.exegntuud.exegntuud.exepid process 5064 gntuud.exe 444 gntuud.exe 1676 gntuud.exe -
Checks computer location settings 2 TTPs 2 IoCs
Looks up country code configured in the registry, likely geofence.
Processes:
1b55a8bf7affc37d19343b1629b06a63.exegntuud.exedescription ioc process Key value queried \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\Control Panel\International\Geo\Nation 1b55a8bf7affc37d19343b1629b06a63.exe Key value queried \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\Control Panel\International\Geo\Nation gntuud.exe -
Loads dropped DLL 2 IoCs
Processes:
rundll32.exepid process 1884 rundll32.exe 1884 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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Accesses Microsoft Outlook profiles 1 TTPs 1 IoCs
Processes:
rundll32.exedescription ioc process Key opened \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook rundll32.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
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Program crash 6 IoCs
Processes:
WerFault.exeWerFault.exeWerFault.exeWerFault.exeWerFault.exeWerFault.exepid pid_target process target process 1312 868 WerFault.exe 1b55a8bf7affc37d19343b1629b06a63.exe 4224 868 WerFault.exe 1b55a8bf7affc37d19343b1629b06a63.exe 4360 444 WerFault.exe gntuud.exe 1488 444 WerFault.exe gntuud.exe 5060 1676 WerFault.exe gntuud.exe 4348 1676 WerFault.exe gntuud.exe -
Creates scheduled task(s) 1 TTPs 1 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
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Suspicious behavior: EnumeratesProcesses 4 IoCs
Processes:
rundll32.exepid process 1884 rundll32.exe 1884 rundll32.exe 1884 rundll32.exe 1884 rundll32.exe -
Suspicious use of WriteProcessMemory 9 IoCs
Processes:
1b55a8bf7affc37d19343b1629b06a63.exegntuud.exedescription pid process target process PID 868 wrote to memory of 5064 868 1b55a8bf7affc37d19343b1629b06a63.exe gntuud.exe PID 868 wrote to memory of 5064 868 1b55a8bf7affc37d19343b1629b06a63.exe gntuud.exe PID 868 wrote to memory of 5064 868 1b55a8bf7affc37d19343b1629b06a63.exe gntuud.exe PID 5064 wrote to memory of 1136 5064 gntuud.exe schtasks.exe PID 5064 wrote to memory of 1136 5064 gntuud.exe schtasks.exe PID 5064 wrote to memory of 1136 5064 gntuud.exe schtasks.exe PID 5064 wrote to memory of 1884 5064 gntuud.exe rundll32.exe PID 5064 wrote to memory of 1884 5064 gntuud.exe rundll32.exe PID 5064 wrote to memory of 1884 5064 gntuud.exe rundll32.exe -
outlook_win_path 1 IoCs
Processes:
rundll32.exedescription ioc process Key opened \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook rundll32.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\1b55a8bf7affc37d19343b1629b06a63.exe"C:\Users\Admin\AppData\Local\Temp\1b55a8bf7affc37d19343b1629b06a63.exe"1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:868 -
C:\Users\Admin\AppData\Local\Temp\ecaac49691\gntuud.exe"C:\Users\Admin\AppData\Local\Temp\ecaac49691\gntuud.exe"2⤵
- Executes dropped EXE
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:5064 -
C:\Windows\SysWOW64\schtasks.exe"C:\Windows\System32\schtasks.exe" /Create /SC MINUTE /MO 1 /TN gntuud.exe /TR "C:\Users\Admin\AppData\Local\Temp\ecaac49691\gntuud.exe" /F3⤵
- Creates scheduled task(s)
PID:1136
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C:\Windows\SysWOW64\rundll32.exe"C:\Windows\System32\rundll32.exe" C:\Users\Admin\AppData\Roaming\f49dfc5e4e2508\cred64.dll, Main3⤵
- Blocklisted process makes network request
- Loads dropped DLL
- Accesses Microsoft Outlook profiles
- Suspicious behavior: EnumeratesProcesses
- outlook_win_path
PID:1884
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 868 -s 11482⤵
- Program crash
PID:1312
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 868 -s 9082⤵
- Program crash
PID:4224
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 868 -ip 8681⤵PID:5028
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 464 -p 868 -ip 8681⤵PID:1052
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C:\Users\Admin\AppData\Local\Temp\ecaac49691\gntuud.exeC:\Users\Admin\AppData\Local\Temp\ecaac49691\gntuud.exe1⤵
- Executes dropped EXE
PID:444 -
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 444 -s 4202⤵
- Program crash
PID:4360
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 444 -s 4402⤵
- Program crash
PID:1488
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 504 -p 444 -ip 4441⤵PID:3228
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 580 -p 444 -ip 4441⤵PID:4568
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C:\Users\Admin\AppData\Local\Temp\ecaac49691\gntuud.exeC:\Users\Admin\AppData\Local\Temp\ecaac49691\gntuud.exe1⤵
- Executes dropped EXE
PID:1676 -
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 1676 -s 4202⤵
- Program crash
PID:5060
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 1676 -s 4282⤵
- Program crash
PID:4348
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 588 -p 1676 -ip 16761⤵PID:1032
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 584 -p 1676 -ip 16761⤵PID:1956
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
Loading Replay Monitor...
Downloads
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Filesize
243KB
MD51b55a8bf7affc37d19343b1629b06a63
SHA14591134d553facb25e952490f55d18833a51e10e
SHA2564f8f78fa26b8cec4ac3aebe88562c34cb33f500576842ed9fdfd2dc24554feae
SHA5126f7618bb43f7f4d5bbc45bbbed392ea295b3519f20b9ab9e8e1a8e19b4bcc3760431c622a9785d1bb28b82fb5cdb17cc33ea7396d6f7d94dd763dc6b6dd9d6e3
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Filesize
243KB
MD51b55a8bf7affc37d19343b1629b06a63
SHA14591134d553facb25e952490f55d18833a51e10e
SHA2564f8f78fa26b8cec4ac3aebe88562c34cb33f500576842ed9fdfd2dc24554feae
SHA5126f7618bb43f7f4d5bbc45bbbed392ea295b3519f20b9ab9e8e1a8e19b4bcc3760431c622a9785d1bb28b82fb5cdb17cc33ea7396d6f7d94dd763dc6b6dd9d6e3
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Filesize
243KB
MD51b55a8bf7affc37d19343b1629b06a63
SHA14591134d553facb25e952490f55d18833a51e10e
SHA2564f8f78fa26b8cec4ac3aebe88562c34cb33f500576842ed9fdfd2dc24554feae
SHA5126f7618bb43f7f4d5bbc45bbbed392ea295b3519f20b9ab9e8e1a8e19b4bcc3760431c622a9785d1bb28b82fb5cdb17cc33ea7396d6f7d94dd763dc6b6dd9d6e3
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Filesize
243KB
MD51b55a8bf7affc37d19343b1629b06a63
SHA14591134d553facb25e952490f55d18833a51e10e
SHA2564f8f78fa26b8cec4ac3aebe88562c34cb33f500576842ed9fdfd2dc24554feae
SHA5126f7618bb43f7f4d5bbc45bbbed392ea295b3519f20b9ab9e8e1a8e19b4bcc3760431c622a9785d1bb28b82fb5cdb17cc33ea7396d6f7d94dd763dc6b6dd9d6e3
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Filesize
126KB
MD5349b2b47fef50fa6a1fc19d0ee4b2db8
SHA1077f4328b3f060a9f010b1a63d9e127d24ddafd4
SHA2565cd41f164de6f783b7da82b5f6dbd49413eccd87cc7470f2004d58ca081fb0e0
SHA51283fd58be4c0051ed05b7a03443d256d52f09206d2f433bd302c9e9e3780b9d472e823aed1db01b5052dc8fdc63a4352beac9e399858a8252c057f11cf2bd1773
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Filesize
126KB
MD5349b2b47fef50fa6a1fc19d0ee4b2db8
SHA1077f4328b3f060a9f010b1a63d9e127d24ddafd4
SHA2565cd41f164de6f783b7da82b5f6dbd49413eccd87cc7470f2004d58ca081fb0e0
SHA51283fd58be4c0051ed05b7a03443d256d52f09206d2f433bd302c9e9e3780b9d472e823aed1db01b5052dc8fdc63a4352beac9e399858a8252c057f11cf2bd1773
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Filesize
126KB
MD5349b2b47fef50fa6a1fc19d0ee4b2db8
SHA1077f4328b3f060a9f010b1a63d9e127d24ddafd4
SHA2565cd41f164de6f783b7da82b5f6dbd49413eccd87cc7470f2004d58ca081fb0e0
SHA51283fd58be4c0051ed05b7a03443d256d52f09206d2f433bd302c9e9e3780b9d472e823aed1db01b5052dc8fdc63a4352beac9e399858a8252c057f11cf2bd1773