Analysis
- max time kernel
152s - max time network
177s - platform
windows10-2004_x64 - resource
win10v2004-20221111-en - resource tags
arch:x64arch:x86image:win10v2004-20221111-enlocale:en-usos:windows10-2004-x64system - submitted
08/12/2022, 00:01
Static task
static1
Behavioral task
behavioral1
Sample
file.exe
Resource
win7-20220901-en
12 signatures
150 seconds
Behavioral task
behavioral2
Sample
file.exe
Resource
win10v2004-20221111-en
15 signatures
150 seconds
General
- Target file.exe
- Size 322KB
- Sample221208-aawhhsbe7v
- SHA256 2a41c122bcde5e515ee7cc893bc4990e3004ed0bd30d5610dbb2e450af15dde3
- MD5 2cd7c537b3a979009d87b4b449c547ee
- SHA1 1c773dd94bda049ad4c4d4b0c201f64f36cf255c
- SHA512 a7351dd0850f989af54c5ef9622a2e39e686878bb7d1a2abddd3a9fce83585e65bb6c11c1300b7f67b5e20dab6e41b845563b380489f2b4bbb640ed12b07454e
- SSDEEP 6144:hfP8kKVA5bYcpEtgk7AWFkUOcxG4JVRxm:hf5KVA5bdp2xFAh
- MD5 SHA1 SHA512 SSDEEP
Score
10/10
Malware Config
Extracted
Family
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amadey
Version
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3.50
C2
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31.41.244.237/jg94cVd30f/index.php
Signatures
- Detect Amadey credential stealer module 4 IoCs
resource yara_rule behavioral2/files/0x0007000000022e6c-153.dat amadey_cred_module behavioral2/files/0x0007000000022e6c-154.dat amadey_cred_module behavioral2/memory/308-156-0x0000000000900000-0x0000000000924000-memory.dmp amadey_cred_module behavioral2/files/0x0007000000022e6c-155.dat amadey_cred_module - Blocklisted process makes network request 1 IoCs
flow pid Process 84 308 rundll32.exe - Downloads MZ/PE file
- Executes dropped EXE 1 IoCs
pid Process 208 gntuud.exe - Checks computer location settings 2 TTPs 2 IoCs
Looks up country code configured in the registry, likely geofence.
description ioc Process Key value queried \REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\Control Panel\International\Geo\Nation file.exe Key value queried \REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\Control Panel\International\Geo\Nation gntuud.exe - Loads dropped DLL 2 IoCs
pid Process 308 rundll32.exe 308 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.
- Accesses Microsoft Outlook profiles 1 TTPs 1 IoCs
description ioc Process Key opened \REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\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.
- Program crash 1 IoCs
pid pid_target Process procid_target 3744 756 WerFault.exe 83 - Creates scheduled task(s) 1 TTPs 1 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
pid Process 2172 schtasks.exe - Suspicious behavior: EnumeratesProcesses 4 IoCs
pid Process 308 rundll32.exe 308 rundll32.exe 308 rundll32.exe 308 rundll32.exe - Suspicious use of WriteProcessMemory 30 IoCs
description pid Process procid_target PID 756 wrote to memory of 208 756 file.exe 86 PID 756 wrote to memory of 208 756 file.exe 86 PID 756 wrote to memory of 208 756 file.exe 86 PID 208 wrote to memory of 2172 208 gntuud.exe 89 PID 208 wrote to memory of 2172 208 gntuud.exe 89 PID 208 wrote to memory of 2172 208 gntuud.exe 89 PID 208 wrote to memory of 4216 208 gntuud.exe 92 PID 208 wrote to memory of 4216 208 gntuud.exe 92 PID 208 wrote to memory of 4216 208 gntuud.exe 92 PID 4216 wrote to memory of 456 4216 cmd.exe 96 PID 4216 wrote to memory of 456 4216 cmd.exe 96 PID 4216 wrote to memory of 456 4216 cmd.exe 96 PID 4216 wrote to memory of 3396 4216 cmd.exe 97 PID 4216 wrote to memory of 3396 4216 cmd.exe 97 PID 4216 wrote to memory of 3396 4216 cmd.exe 97 PID 4216 wrote to memory of 2720 4216 cmd.exe 98 PID 4216 wrote to memory of 2720 4216 cmd.exe 98 PID 4216 wrote to memory of 2720 4216 cmd.exe 98 PID 4216 wrote to memory of 3516 4216 cmd.exe 99 PID 4216 wrote to memory of 3516 4216 cmd.exe 99 PID 4216 wrote to memory of 3516 4216 cmd.exe 99 PID 4216 wrote to memory of 4244 4216 cmd.exe 100 PID 4216 wrote to memory of 4244 4216 cmd.exe 100 PID 4216 wrote to memory of 4244 4216 cmd.exe 100 PID 4216 wrote to memory of 4984 4216 cmd.exe 101 PID 4216 wrote to memory of 4984 4216 cmd.exe 101 PID 4216 wrote to memory of 4984 4216 cmd.exe 101 PID 208 wrote to memory of 308 208 gntuud.exe 109 PID 208 wrote to memory of 308 208 gntuud.exe 109 PID 208 wrote to memory of 308 208 gntuud.exe 109 - outlook_win_path 1 IoCs
description ioc Process Key opened \REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook rundll32.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\file.exe"C:\Users\Admin\AppData\Local\Temp\file.exe"1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:756 -
C:\Users\Admin\AppData\Local\Temp\9c69749b54\gntuud.exe"C:\Users\Admin\AppData\Local\Temp\9c69749b54\gntuud.exe"2⤵
- Executes dropped EXE
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:208 -
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\9c69749b54\gntuud.exe" /F3⤵
- Creates scheduled task(s)
PID:2172
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C:\Windows\SysWOW64\cmd.exe"C:\Windows\System32\cmd.exe" /k echo Y|CACLS "gntuud.exe" /P "Admin:N"&&CACLS "gntuud.exe" /P "Admin:R" /E&&echo Y|CACLS "..\9c69749b54" /P "Admin:N"&&CACLS "..\9c69749b54" /P "Admin:R" /E&&Exit3⤵
- Suspicious use of WriteProcessMemory
PID:4216 -
C:\Windows\SysWOW64\cmd.exeC:\Windows\system32\cmd.exe /S /D /c" echo Y"4⤵PID:456
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C:\Windows\SysWOW64\cacls.exeCACLS "gntuud.exe" /P "Admin:N"4⤵PID:3396
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C:\Windows\SysWOW64\cacls.exeCACLS "gntuud.exe" /P "Admin:R" /E4⤵PID:2720
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C:\Windows\SysWOW64\cmd.exeC:\Windows\system32\cmd.exe /S /D /c" echo Y"4⤵PID:3516
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C:\Windows\SysWOW64\cacls.exeCACLS "..\9c69749b54" /P "Admin:N"4⤵PID:4244
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C:\Windows\SysWOW64\cacls.exeCACLS "..\9c69749b54" /P "Admin:R" /E4⤵PID:4984
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C:\Windows\SysWOW64\rundll32.exe"C:\Windows\System32\rundll32.exe" C:\Users\Admin\AppData\Roaming\85f469ce401df1\cred64.dll, Main3⤵
- Blocklisted process makes network request
- Loads dropped DLL
- Accesses Microsoft Outlook profiles
- Suspicious behavior: EnumeratesProcesses
- outlook_win_path
PID:308
-
-
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 756 -s 9162⤵
- Program crash
PID:3744
-
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 460 -p 756 -ip 7561⤵PID:3688
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
- Path C:\Users\Admin\AppData\Local\Temp\9c69749b54\gntuud.exe
- Size 322KB
- SHA256 2a41c122bcde5e515ee7cc893bc4990e3004ed0bd30d5610dbb2e450af15dde3
- MD5 2cd7c537b3a979009d87b4b449c547ee
- SHA1 1c773dd94bda049ad4c4d4b0c201f64f36cf255c
- SHA512 a7351dd0850f989af54c5ef9622a2e39e686878bb7d1a2abddd3a9fce83585e65bb6c11c1300b7f67b5e20dab6e41b845563b380489f2b4bbb640ed12b07454e
- SSDEEP 6144:hfP8kKVA5bYcpEtgk7AWFkUOcxG4JVRxm:hf5KVA5bdp2xFAh
- MD5 SHA1 SHA512 SSDEEP
- Path C:\Users\Admin\AppData\Local\Temp\9c69749b54\gntuud.exe
- Size 322KB
- SHA256 2a41c122bcde5e515ee7cc893bc4990e3004ed0bd30d5610dbb2e450af15dde3
- MD5 2cd7c537b3a979009d87b4b449c547ee
- SHA1 1c773dd94bda049ad4c4d4b0c201f64f36cf255c
- SHA512 a7351dd0850f989af54c5ef9622a2e39e686878bb7d1a2abddd3a9fce83585e65bb6c11c1300b7f67b5e20dab6e41b845563b380489f2b4bbb640ed12b07454e
- SSDEEP 6144:hfP8kKVA5bYcpEtgk7AWFkUOcxG4JVRxm:hf5KVA5bdp2xFAh
- MD5 SHA1 SHA512 SSDEEP
- Path C:\Users\Admin\AppData\Roaming\85f469ce401df1\cred64.dll
- Size 126KB
- SHA256 c7d804e8fb096769b0e199102bdf8efa97dfae1a9b57a479819971146877368b
- MD5 c0fd0167e213b6148333351bd16ed1fb
- SHA1 1cfb2b42686557656dead53e02d1db3f2a848026
- SHA512 d514f35e62a5380b4ad96a3e0cddf82b53b1cf273e5ac542f040f30a75efd3c246fa2194e4bb273572cd2436a435a608e2b919f6df9fa4ebbf452b0d297b0cf9
- SSDEEP 3072:Yx7pOYzBek53tiINwyP7XSSJds3zhrjPcnqULv4i9:Yx7ZNh53vwyOztPc3L
- MD5 SHA1 SHA512 SSDEEP
- Path C:\Users\Admin\AppData\Roaming\85f469ce401df1\cred64.dll
- Size 126KB
- SHA256 c7d804e8fb096769b0e199102bdf8efa97dfae1a9b57a479819971146877368b
- MD5 c0fd0167e213b6148333351bd16ed1fb
- SHA1 1cfb2b42686557656dead53e02d1db3f2a848026
- SHA512 d514f35e62a5380b4ad96a3e0cddf82b53b1cf273e5ac542f040f30a75efd3c246fa2194e4bb273572cd2436a435a608e2b919f6df9fa4ebbf452b0d297b0cf9
- SSDEEP 3072:Yx7pOYzBek53tiINwyP7XSSJds3zhrjPcnqULv4i9:Yx7ZNh53vwyOztPc3L
- MD5 SHA1 SHA512 SSDEEP
- Path C:\Users\Admin\AppData\Roaming\85f469ce401df1\cred64.dll
- Size 126KB
- SHA256 c7d804e8fb096769b0e199102bdf8efa97dfae1a9b57a479819971146877368b
- MD5 c0fd0167e213b6148333351bd16ed1fb
- SHA1 1cfb2b42686557656dead53e02d1db3f2a848026
- SHA512 d514f35e62a5380b4ad96a3e0cddf82b53b1cf273e5ac542f040f30a75efd3c246fa2194e4bb273572cd2436a435a608e2b919f6df9fa4ebbf452b0d297b0cf9
- SSDEEP 3072:Yx7pOYzBek53tiINwyP7XSSJds3zhrjPcnqULv4i9:Yx7ZNh53vwyOztPc3L
- MD5 SHA1 SHA512 SSDEEP