Analysis
- max time kernel
108s - max time network
128s - platform
windows10-2004_x64 - resource
win10v2004-20220901-en - resource tags
arch:x64arch:x86image:win10v2004-20220901-enlocale:en-usos:windows10-2004-x64system - submitted
07/12/2022, 18:11
Static task
static1
Behavioral task
behavioral1
Sample
file.exe
Resource
win7-20221111-en
21 signatures
150 seconds
Behavioral task
behavioral2
Sample
file.exe
Resource
win10v2004-20220901-en
15 signatures
150 seconds
General
- Target file.exe
- Size 322KB
- Sample221207-wsllxsaf7x
- SHA256 c87724737d99414c96b59137796aae194b92cbf6cfc26281de3e3e04a35bbae3
- MD5 eecf4309bcdd59b9cae161aca43f6660
- SHA1 efff522853f3c2e8e90fdb16d0975f4bea7d16fc
- SHA512 78c2eee9b968a5fdcbb0c07f724c67df93d0ccefecfd0c7f5a2482a87d9eca8ffdcfef789d3bcd5bd58c9cfb1a49dfd41596ff6e29f1c113c72fb192361ba121
- SSDEEP 6144:di3iCtHgnmF06hNKtMlzmWbNPqJ5sOilf:dtCtAme9evNYs/l
- MD5 SHA1 SHA512 SSDEEP
Score
10/10
Malware Config
Extracted
Family
-
amadey
Version
-
3.50
C2
-
31.41.244.237/jg94cVd30f/index.php
Signatures
- Detect Amadey credential stealer module 4 IoCs
resource yara_rule behavioral2/files/0x0006000000022e0d-157.dat amadey_cred_module behavioral2/files/0x0006000000022e0d-159.dat amadey_cred_module behavioral2/memory/4584-160-0x0000000000960000-0x0000000000984000-memory.dmp amadey_cred_module behavioral2/files/0x0006000000022e0d-158.dat amadey_cred_module - Blocklisted process makes network request 1 IoCs
flow pid Process 41 4584 rundll32.exe - Downloads MZ/PE file
- Executes dropped EXE 3 IoCs
pid Process 1636 gntuud.exe 4668 gntuud.exe 3116 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-1-5-21-929662420-1054238289-2961194603-1000\Control Panel\International\Geo\Nation file.exe Key value queried \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\Control Panel\International\Geo\Nation gntuud.exe - Loads dropped DLL 2 IoCs
pid Process 4584 rundll32.exe 4584 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-1-5-21-929662420-1054238289-2961194603-1000\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 3 IoCs
pid pid_target Process procid_target 2620 528 WerFault.exe 80 2516 4668 WerFault.exe 101 2316 3116 WerFault.exe 105 - Creates scheduled task(s) 1 TTPs 1 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
pid Process 4460 schtasks.exe - Suspicious behavior: EnumeratesProcesses 4 IoCs
pid Process 4584 rundll32.exe 4584 rundll32.exe 4584 rundll32.exe 4584 rundll32.exe - Suspicious use of WriteProcessMemory 30 IoCs
description pid Process procid_target PID 528 wrote to memory of 1636 528 file.exe 81 PID 528 wrote to memory of 1636 528 file.exe 81 PID 528 wrote to memory of 1636 528 file.exe 81 PID 1636 wrote to memory of 4460 1636 gntuud.exe 84 PID 1636 wrote to memory of 4460 1636 gntuud.exe 84 PID 1636 wrote to memory of 4460 1636 gntuud.exe 84 PID 1636 wrote to memory of 688 1636 gntuud.exe 86 PID 1636 wrote to memory of 688 1636 gntuud.exe 86 PID 1636 wrote to memory of 688 1636 gntuud.exe 86 PID 688 wrote to memory of 4688 688 cmd.exe 88 PID 688 wrote to memory of 4688 688 cmd.exe 88 PID 688 wrote to memory of 4688 688 cmd.exe 88 PID 688 wrote to memory of 436 688 cmd.exe 89 PID 688 wrote to memory of 436 688 cmd.exe 89 PID 688 wrote to memory of 436 688 cmd.exe 89 PID 688 wrote to memory of 1772 688 cmd.exe 90 PID 688 wrote to memory of 1772 688 cmd.exe 90 PID 688 wrote to memory of 1772 688 cmd.exe 90 PID 688 wrote to memory of 204 688 cmd.exe 91 PID 688 wrote to memory of 204 688 cmd.exe 91 PID 688 wrote to memory of 204 688 cmd.exe 91 PID 688 wrote to memory of 228 688 cmd.exe 92 PID 688 wrote to memory of 228 688 cmd.exe 92 PID 688 wrote to memory of 228 688 cmd.exe 92 PID 688 wrote to memory of 4440 688 cmd.exe 93 PID 688 wrote to memory of 4440 688 cmd.exe 93 PID 688 wrote to memory of 4440 688 cmd.exe 93 PID 1636 wrote to memory of 4584 1636 gntuud.exe 104 PID 1636 wrote to memory of 4584 1636 gntuud.exe 104 PID 1636 wrote to memory of 4584 1636 gntuud.exe 104 - outlook_win_path 1 IoCs
description ioc Process Key opened \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\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:528 -
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:1636 -
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:4460
-
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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:688 -
C:\Windows\SysWOW64\cmd.exeC:\Windows\system32\cmd.exe /S /D /c" echo Y"4⤵PID:4688
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C:\Windows\SysWOW64\cacls.exeCACLS "gntuud.exe" /P "Admin:N"4⤵PID:436
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C:\Windows\SysWOW64\cacls.exeCACLS "gntuud.exe" /P "Admin:R" /E4⤵PID:1772
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C:\Windows\SysWOW64\cmd.exeC:\Windows\system32\cmd.exe /S /D /c" echo Y"4⤵PID:204
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C:\Windows\SysWOW64\cacls.exeCACLS "..\9c69749b54" /P "Admin:N"4⤵PID:228
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C:\Windows\SysWOW64\cacls.exeCACLS "..\9c69749b54" /P "Admin:R" /E4⤵PID:4440
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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:4584
-
-
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 528 -s 12642⤵
- Program crash
PID:2620
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 432 -p 528 -ip 5281⤵PID:4276
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C:\Users\Admin\AppData\Local\Temp\9c69749b54\gntuud.exeC:\Users\Admin\AppData\Local\Temp\9c69749b54\gntuud.exe1⤵
- Executes dropped EXE
PID:4668 -
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 4668 -s 1842⤵
- Program crash
PID:2516
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 416 -p 4668 -ip 46681⤵PID:4252
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C:\Users\Admin\AppData\Local\Temp\9c69749b54\gntuud.exeC:\Users\Admin\AppData\Local\Temp\9c69749b54\gntuud.exe1⤵
- Executes dropped EXE
PID:3116 -
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 3116 -s 4162⤵
- Program crash
PID:2316
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 416 -p 3116 -ip 31161⤵PID:4128
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
Loading Replay Monitor...
Downloads
- Path C:\Users\Admin\AppData\Local\Temp\9c69749b54\gntuud.exe
- Size 322KB
- SHA256 c87724737d99414c96b59137796aae194b92cbf6cfc26281de3e3e04a35bbae3
- MD5 eecf4309bcdd59b9cae161aca43f6660
- SHA1 efff522853f3c2e8e90fdb16d0975f4bea7d16fc
- SHA512 78c2eee9b968a5fdcbb0c07f724c67df93d0ccefecfd0c7f5a2482a87d9eca8ffdcfef789d3bcd5bd58c9cfb1a49dfd41596ff6e29f1c113c72fb192361ba121
- SSDEEP 6144:di3iCtHgnmF06hNKtMlzmWbNPqJ5sOilf:dtCtAme9evNYs/l
- MD5 SHA1 SHA512 SSDEEP
- Path C:\Users\Admin\AppData\Local\Temp\9c69749b54\gntuud.exe
- Size 322KB
- SHA256 c87724737d99414c96b59137796aae194b92cbf6cfc26281de3e3e04a35bbae3
- MD5 eecf4309bcdd59b9cae161aca43f6660
- SHA1 efff522853f3c2e8e90fdb16d0975f4bea7d16fc
- SHA512 78c2eee9b968a5fdcbb0c07f724c67df93d0ccefecfd0c7f5a2482a87d9eca8ffdcfef789d3bcd5bd58c9cfb1a49dfd41596ff6e29f1c113c72fb192361ba121
- SSDEEP 6144:di3iCtHgnmF06hNKtMlzmWbNPqJ5sOilf:dtCtAme9evNYs/l
- MD5 SHA1 SHA512 SSDEEP
- Path C:\Users\Admin\AppData\Local\Temp\9c69749b54\gntuud.exe
- Size 322KB
- SHA256 c87724737d99414c96b59137796aae194b92cbf6cfc26281de3e3e04a35bbae3
- MD5 eecf4309bcdd59b9cae161aca43f6660
- SHA1 efff522853f3c2e8e90fdb16d0975f4bea7d16fc
- SHA512 78c2eee9b968a5fdcbb0c07f724c67df93d0ccefecfd0c7f5a2482a87d9eca8ffdcfef789d3bcd5bd58c9cfb1a49dfd41596ff6e29f1c113c72fb192361ba121
- SSDEEP 6144:di3iCtHgnmF06hNKtMlzmWbNPqJ5sOilf:dtCtAme9evNYs/l
- MD5 SHA1 SHA512 SSDEEP
- Path C:\Users\Admin\AppData\Local\Temp\9c69749b54\gntuud.exe
- Size 322KB
- SHA256 c87724737d99414c96b59137796aae194b92cbf6cfc26281de3e3e04a35bbae3
- MD5 eecf4309bcdd59b9cae161aca43f6660
- SHA1 efff522853f3c2e8e90fdb16d0975f4bea7d16fc
- SHA512 78c2eee9b968a5fdcbb0c07f724c67df93d0ccefecfd0c7f5a2482a87d9eca8ffdcfef789d3bcd5bd58c9cfb1a49dfd41596ff6e29f1c113c72fb192361ba121
- SSDEEP 6144:di3iCtHgnmF06hNKtMlzmWbNPqJ5sOilf:dtCtAme9evNYs/l
- 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