Analysis
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max time kernel
224s -
max time network
245s -
platform
windows10-2004_x64 -
resource
win10v2004-20221111-en -
resource tags
arch:x64arch:x86image:win10v2004-20221111-enlocale:en-usos:windows10-2004-x64system -
submitted
26-11-2022 08:51
Static task
static1
Behavioral task
behavioral1
Sample
a42ba2b19f7a692723fb15a66548853c42b1b298237475c114e1ecb4543567ce.exe
Resource
win10v2004-20221111-en
General
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Target
a42ba2b19f7a692723fb15a66548853c42b1b298237475c114e1ecb4543567ce.exe
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Size
204KB
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MD5
b6a4ee6cf4cea7d1de16687b2ebec5fc
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SHA1
8d2332676ff1035b4301366cb63bc3b5be7485e0
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SHA256
a42ba2b19f7a692723fb15a66548853c42b1b298237475c114e1ecb4543567ce
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SHA512
4b1a6c2b8ff221032a3fa026734864445985525aaafe3d1bef72f14a3223d92ddb97dded9ab5e503bc2a3088049329947b9a3e65ece8bb8a24cfceb5069382eb
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SSDEEP
3072:HQ3btAefgQCl653lcS8ks5C43NZpTEvW8tocmyhJgv8ObYNQjXAhDa11mosu7f:iHfg17HwaZBK6vYNQjHWU
Malware Config
Extracted
amadey
3.50
193.56.146.194/h49vlBP/index.php
Signatures
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Detect Amadey credential stealer module 2 IoCs
Processes:
resource yara_rule C:\Users\Admin\AppData\Roaming\bf045808586a24\cred64.dll amadey_cred_module C:\Users\Admin\AppData\Roaming\bf045808586a24\cred64.dll amadey_cred_module -
Blocklisted process makes network request 1 IoCs
Processes:
rundll32.exeflow pid process 103 3140 rundll32.exe -
Downloads MZ/PE file
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Executes dropped EXE 3 IoCs
Processes:
rovwer.exerovwer.exerovwer.exepid process 4432 rovwer.exe 4092 rovwer.exe 2500 rovwer.exe -
Checks computer location settings 2 TTPs 2 IoCs
Looks up country code configured in the registry, likely geofence.
Processes:
a42ba2b19f7a692723fb15a66548853c42b1b298237475c114e1ecb4543567ce.exerovwer.exedescription ioc process Key value queried \REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\Control Panel\International\Geo\Nation a42ba2b19f7a692723fb15a66548853c42b1b298237475c114e1ecb4543567ce.exe Key value queried \REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\Control Panel\International\Geo\Nation rovwer.exe -
Loads dropped DLL 1 IoCs
Processes:
rundll32.exepid process 3140 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-1-5-21-4246620582-653642754-1174164128-1000\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 2 IoCs
Processes:
WerFault.exeWerFault.exepid pid_target process target process 3560 4388 WerFault.exe a42ba2b19f7a692723fb15a66548853c42b1b298237475c114e1ecb4543567ce.exe 448 4092 WerFault.exe rovwer.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 3140 rundll32.exe 3140 rundll32.exe 3140 rundll32.exe 3140 rundll32.exe -
Suspicious use of WriteProcessMemory 9 IoCs
Processes:
a42ba2b19f7a692723fb15a66548853c42b1b298237475c114e1ecb4543567ce.exerovwer.exedescription pid process target process PID 4388 wrote to memory of 4432 4388 a42ba2b19f7a692723fb15a66548853c42b1b298237475c114e1ecb4543567ce.exe rovwer.exe PID 4388 wrote to memory of 4432 4388 a42ba2b19f7a692723fb15a66548853c42b1b298237475c114e1ecb4543567ce.exe rovwer.exe PID 4388 wrote to memory of 4432 4388 a42ba2b19f7a692723fb15a66548853c42b1b298237475c114e1ecb4543567ce.exe rovwer.exe PID 4432 wrote to memory of 4640 4432 rovwer.exe schtasks.exe PID 4432 wrote to memory of 4640 4432 rovwer.exe schtasks.exe PID 4432 wrote to memory of 4640 4432 rovwer.exe schtasks.exe PID 4432 wrote to memory of 3140 4432 rovwer.exe rundll32.exe PID 4432 wrote to memory of 3140 4432 rovwer.exe rundll32.exe PID 4432 wrote to memory of 3140 4432 rovwer.exe rundll32.exe -
outlook_win_path 1 IoCs
Processes:
rundll32.exedescription ioc process Key opened \REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook rundll32.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\a42ba2b19f7a692723fb15a66548853c42b1b298237475c114e1ecb4543567ce.exe"C:\Users\Admin\AppData\Local\Temp\a42ba2b19f7a692723fb15a66548853c42b1b298237475c114e1ecb4543567ce.exe"1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\50c1695437\rovwer.exe"C:\Users\Admin\AppData\Local\Temp\50c1695437\rovwer.exe"2⤵
- Executes dropped EXE
- Checks computer location settings
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\schtasks.exe"C:\Windows\System32\schtasks.exe" /Create /SC MINUTE /MO 1 /TN rovwer.exe /TR "C:\Users\Admin\AppData\Local\Temp\50c1695437\rovwer.exe" /F3⤵
- Creates scheduled task(s)
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C:\Windows\SysWOW64\rundll32.exe"C:\Windows\System32\rundll32.exe" C:\Users\Admin\AppData\Roaming\bf045808586a24\cred64.dll, Main3⤵
- Blocklisted process makes network request
- Loads dropped DLL
- Accesses Microsoft Outlook profiles
- Suspicious behavior: EnumeratesProcesses
- outlook_win_path
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 4388 -s 12842⤵
- Program crash
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 460 -p 4388 -ip 43881⤵
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C:\Users\Admin\AppData\Local\Temp\50c1695437\rovwer.exeC:\Users\Admin\AppData\Local\Temp\50c1695437\rovwer.exe1⤵
- Executes dropped EXE
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 4092 -s 4162⤵
- Program crash
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 528 -p 4092 -ip 40921⤵
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C:\Users\Admin\AppData\Local\Temp\50c1695437\rovwer.exeC:\Users\Admin\AppData\Local\Temp\50c1695437\rovwer.exe1⤵
- Executes dropped EXE
Network
MITRE ATT&CK Matrix ATT&CK v6
Replay Monitor
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Downloads
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C:\Users\Admin\AppData\Local\Temp\50c1695437\rovwer.exeFilesize
204KB
MD5b6a4ee6cf4cea7d1de16687b2ebec5fc
SHA18d2332676ff1035b4301366cb63bc3b5be7485e0
SHA256a42ba2b19f7a692723fb15a66548853c42b1b298237475c114e1ecb4543567ce
SHA5124b1a6c2b8ff221032a3fa026734864445985525aaafe3d1bef72f14a3223d92ddb97dded9ab5e503bc2a3088049329947b9a3e65ece8bb8a24cfceb5069382eb
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C:\Users\Admin\AppData\Local\Temp\50c1695437\rovwer.exeFilesize
204KB
MD5b6a4ee6cf4cea7d1de16687b2ebec5fc
SHA18d2332676ff1035b4301366cb63bc3b5be7485e0
SHA256a42ba2b19f7a692723fb15a66548853c42b1b298237475c114e1ecb4543567ce
SHA5124b1a6c2b8ff221032a3fa026734864445985525aaafe3d1bef72f14a3223d92ddb97dded9ab5e503bc2a3088049329947b9a3e65ece8bb8a24cfceb5069382eb
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C:\Users\Admin\AppData\Local\Temp\50c1695437\rovwer.exeFilesize
204KB
MD5b6a4ee6cf4cea7d1de16687b2ebec5fc
SHA18d2332676ff1035b4301366cb63bc3b5be7485e0
SHA256a42ba2b19f7a692723fb15a66548853c42b1b298237475c114e1ecb4543567ce
SHA5124b1a6c2b8ff221032a3fa026734864445985525aaafe3d1bef72f14a3223d92ddb97dded9ab5e503bc2a3088049329947b9a3e65ece8bb8a24cfceb5069382eb
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C:\Users\Admin\AppData\Local\Temp\50c1695437\rovwer.exeFilesize
204KB
MD5b6a4ee6cf4cea7d1de16687b2ebec5fc
SHA18d2332676ff1035b4301366cb63bc3b5be7485e0
SHA256a42ba2b19f7a692723fb15a66548853c42b1b298237475c114e1ecb4543567ce
SHA5124b1a6c2b8ff221032a3fa026734864445985525aaafe3d1bef72f14a3223d92ddb97dded9ab5e503bc2a3088049329947b9a3e65ece8bb8a24cfceb5069382eb
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C:\Users\Admin\AppData\Roaming\bf045808586a24\cred64.dllFilesize
126KB
MD5674cec24e36e0dfaec6290db96dda86e
SHA1581e3a7a541cc04641e751fc850d92e07236681f
SHA256de81531468982b689451e85d249214d0aa484e2ffedfd32c58d43cf879f29ded
SHA5126d9898169073c240fe454bd45065fd7dc8458f1d323925b57eb58fa4305bb0d5631bbceb61835593b225e887e0867186ef637c440460279378cb29e832066029
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C:\Users\Admin\AppData\Roaming\bf045808586a24\cred64.dllFilesize
126KB
MD5674cec24e36e0dfaec6290db96dda86e
SHA1581e3a7a541cc04641e751fc850d92e07236681f
SHA256de81531468982b689451e85d249214d0aa484e2ffedfd32c58d43cf879f29ded
SHA5126d9898169073c240fe454bd45065fd7dc8458f1d323925b57eb58fa4305bb0d5631bbceb61835593b225e887e0867186ef637c440460279378cb29e832066029
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memory/3140-146-0x0000000000000000-mapping.dmp
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memory/4092-144-0x0000000000D80000-0x0000000000D9F000-memory.dmpFilesize
124KB
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memory/4092-145-0x0000000000400000-0x0000000000AE5000-memory.dmpFilesize
6.9MB
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memory/4388-140-0x0000000000DEE000-0x0000000000E0D000-memory.dmpFilesize
124KB
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memory/4388-141-0x0000000000400000-0x0000000000AE5000-memory.dmpFilesize
6.9MB
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memory/4388-132-0x0000000000DEE000-0x0000000000E0D000-memory.dmpFilesize
124KB
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memory/4388-134-0x0000000000400000-0x0000000000AE5000-memory.dmpFilesize
6.9MB
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memory/4388-133-0x0000000000D80000-0x0000000000DBE000-memory.dmpFilesize
248KB
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memory/4432-139-0x0000000000400000-0x0000000000AE5000-memory.dmpFilesize
6.9MB
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memory/4432-138-0x0000000000DAC000-0x0000000000DCB000-memory.dmpFilesize
124KB
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memory/4432-135-0x0000000000000000-mapping.dmp
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memory/4640-142-0x0000000000000000-mapping.dmp