Analysis
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max time kernel
129s -
max time network
151s -
platform
windows10-2004_x64 -
resource
win10v2004-20220812-en -
resource tags
arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system -
submitted
03/02/2023, 07:48
Behavioral task
behavioral1
Sample
57b5054503abebc366488f1a4f2e9c3230c90dbe2bb457a5bfb9374acd35e8cf.exe
Resource
win10v2004-20220812-en
General
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Target
57b5054503abebc366488f1a4f2e9c3230c90dbe2bb457a5bfb9374acd35e8cf.exe
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Size
1.3MB
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MD5
0162fabffd3925b3b4994c3107079af7
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SHA1
c4283a1ad7531b6a61454f26e31b148c2a6be01c
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SHA256
57b5054503abebc366488f1a4f2e9c3230c90dbe2bb457a5bfb9374acd35e8cf
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SHA512
d2d0b5ff880b88574aa583f05cff33026a541600949cef081eed3e17d40e7ac74339de1ed89e5d2c1b1d1dd0eed2974ab1d89b3598121b5b26fe3b5978811c2b
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SSDEEP
24576:U2G/nvxW3Ww0t6TnzGmVBDh4+aknuRRZJND0gFJ4rD/IjC:UbA30GnzV/q+DnsXg
Malware Config
Signatures
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DcRat
DarkCrystal(DC) is a new .NET RAT active since June 2019 capable of loading additional plugins.
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Process spawned unexpected child process 12 IoCs
This typically indicates the parent process was compromised via an exploit or macro.
description pid pid_target Process procid_target Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process 4200 1388 schtasks.exe 29 Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process 4800 1388 schtasks.exe 29 Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process 3068 1388 schtasks.exe 29 Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process 4976 1388 schtasks.exe 29 Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process 3900 1388 schtasks.exe 29 Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process 4416 1388 schtasks.exe 29 Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process 4704 1388 schtasks.exe 29 Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process 2400 1388 schtasks.exe 29 Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process 2032 1388 schtasks.exe 29 Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process 1660 1388 schtasks.exe 29 Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process 4996 1388 schtasks.exe 29 Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process 2060 1388 schtasks.exe 29 -
resource yara_rule behavioral1/files/0x000b00000002171d-137.dat dcrat behavioral1/files/0x000b00000002171d-138.dat dcrat behavioral1/memory/3332-139-0x0000000000F90000-0x00000000010A0000-memory.dmp dcrat behavioral1/files/0x0006000000022e10-147.dat dcrat behavioral1/files/0x0006000000022e10-148.dat dcrat -
Checks computer location settings 2 TTPs 3 IoCs
Looks up country code configured in the registry, likely geofence.
description ioc Process Key value queried \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\Control Panel\International\Geo\Nation 57b5054503abebc366488f1a4f2e9c3230c90dbe2bb457a5bfb9374acd35e8cf.exe Key value queried \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\Control Panel\International\Geo\Nation WScript.exe Key value queried \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\Control Panel\International\Geo\Nation DllCommonsvc.exe -
Executes dropped EXE 2 IoCs
pid Process 3332 DllCommonsvc.exe 3592 conhost.exe -
Legitimate hosting services abused for malware hosting/C2 1 TTPs
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Drops file in Program Files directory 5 IoCs
description ioc Process File created C:\Program Files\Common Files\DESIGNER\SearchApp.exe DllCommonsvc.exe File opened for modification C:\Program Files\Common Files\DESIGNER\SearchApp.exe DllCommonsvc.exe File created C:\Program Files\Common Files\DESIGNER\38384e6a620884 DllCommonsvc.exe File created C:\Program Files\Windows Defender\csrss.exe DllCommonsvc.exe File created C:\Program Files\Windows Defender\886983d96e3d3e DllCommonsvc.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
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Creates scheduled task(s) 1 TTPs 12 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
pid Process 1660 schtasks.exe 4200 schtasks.exe 3068 schtasks.exe 4976 schtasks.exe 4416 schtasks.exe 2400 schtasks.exe 2060 schtasks.exe 4800 schtasks.exe 3900 schtasks.exe 4704 schtasks.exe 2032 schtasks.exe 4996 schtasks.exe -
Modifies registry class 1 IoCs
description ioc Process Key created \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000_Classes\Local Settings 57b5054503abebc366488f1a4f2e9c3230c90dbe2bb457a5bfb9374acd35e8cf.exe -
Suspicious behavior: EnumeratesProcesses 22 IoCs
pid Process 3332 DllCommonsvc.exe 3332 DllCommonsvc.exe 3332 DllCommonsvc.exe 4304 powershell.exe 4224 powershell.exe 1844 powershell.exe 4308 powershell.exe 1764 powershell.exe 4308 powershell.exe 4304 powershell.exe 4224 powershell.exe 1844 powershell.exe 3592 conhost.exe 1764 powershell.exe 3592 conhost.exe 3592 conhost.exe 3592 conhost.exe 3592 conhost.exe 3592 conhost.exe 3592 conhost.exe 3592 conhost.exe 3592 conhost.exe -
Suspicious behavior: GetForegroundWindowSpam 1 IoCs
pid Process 3592 conhost.exe -
Suspicious use of AdjustPrivilegeToken 7 IoCs
description pid Process Token: SeDebugPrivilege 3332 DllCommonsvc.exe Token: SeDebugPrivilege 4304 powershell.exe Token: SeDebugPrivilege 4224 powershell.exe Token: SeDebugPrivilege 1844 powershell.exe Token: SeDebugPrivilege 4308 powershell.exe Token: SeDebugPrivilege 1764 powershell.exe Token: SeDebugPrivilege 3592 conhost.exe -
Suspicious use of WriteProcessMemory 20 IoCs
description pid Process procid_target PID 1124 wrote to memory of 3912 1124 57b5054503abebc366488f1a4f2e9c3230c90dbe2bb457a5bfb9374acd35e8cf.exe 79 PID 1124 wrote to memory of 3912 1124 57b5054503abebc366488f1a4f2e9c3230c90dbe2bb457a5bfb9374acd35e8cf.exe 79 PID 1124 wrote to memory of 3912 1124 57b5054503abebc366488f1a4f2e9c3230c90dbe2bb457a5bfb9374acd35e8cf.exe 79 PID 3912 wrote to memory of 3040 3912 WScript.exe 80 PID 3912 wrote to memory of 3040 3912 WScript.exe 80 PID 3912 wrote to memory of 3040 3912 WScript.exe 80 PID 3040 wrote to memory of 3332 3040 cmd.exe 82 PID 3040 wrote to memory of 3332 3040 cmd.exe 82 PID 3332 wrote to memory of 1764 3332 DllCommonsvc.exe 95 PID 3332 wrote to memory of 1764 3332 DllCommonsvc.exe 95 PID 3332 wrote to memory of 4304 3332 DllCommonsvc.exe 96 PID 3332 wrote to memory of 4304 3332 DllCommonsvc.exe 96 PID 3332 wrote to memory of 4224 3332 DllCommonsvc.exe 97 PID 3332 wrote to memory of 4224 3332 DllCommonsvc.exe 97 PID 3332 wrote to memory of 4308 3332 DllCommonsvc.exe 98 PID 3332 wrote to memory of 4308 3332 DllCommonsvc.exe 98 PID 3332 wrote to memory of 1844 3332 DllCommonsvc.exe 102 PID 3332 wrote to memory of 1844 3332 DllCommonsvc.exe 102 PID 3332 wrote to memory of 3592 3332 DllCommonsvc.exe 105 PID 3332 wrote to memory of 3592 3332 DllCommonsvc.exe 105
Processes
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C:\Users\Admin\AppData\Local\Temp\57b5054503abebc366488f1a4f2e9c3230c90dbe2bb457a5bfb9374acd35e8cf.exe"C:\Users\Admin\AppData\Local\Temp\57b5054503abebc366488f1a4f2e9c3230c90dbe2bb457a5bfb9374acd35e8cf.exe"1⤵
- Checks computer location settings
- Modifies registry class
- Suspicious use of WriteProcessMemory
PID:1124 -
C:\Windows\SysWOW64\WScript.exe"C:\Windows\System32\WScript.exe" "C:\providercommon\yTUdeXjbLOhnrN32dgrxVg.vbe"2⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:3912 -
C:\Windows\SysWOW64\cmd.exeC:\Windows\system32\cmd.exe /c ""C:\providercommon\1zu9dW.bat" "3⤵
- Suspicious use of WriteProcessMemory
PID:3040 -
C:\providercommon\DllCommonsvc.exe"C:\providercommon\DllCommonsvc.exe"4⤵
- Checks computer location settings
- Executes dropped EXE
- Drops file in Program Files directory
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3332 -
C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe"powershell" -Command Add-MpPreference -ExclusionPath 'C:\providercommon\DllCommonsvc.exe'5⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:1764
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C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe"powershell" -Command Add-MpPreference -ExclusionPath 'C:\Program Files\Common Files\DESIGNER\SearchApp.exe'5⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:4304
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C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe"powershell" -Command Add-MpPreference -ExclusionPath 'C:\odt\conhost.exe'5⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:4224
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C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe"powershell" -Command Add-MpPreference -ExclusionPath 'C:\Program Files\Windows Defender\csrss.exe'5⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:4308
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C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe"powershell" -Command Add-MpPreference -ExclusionPath 'C:\Users\Default\Downloads\services.exe'5⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:1844
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C:\odt\conhost.exe"C:\odt\conhost.exe"5⤵
- Executes dropped EXE
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of AdjustPrivilegeToken
PID:3592
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C:\Windows\system32\schtasks.exeschtasks.exe /create /tn "SearchAppS" /sc MINUTE /mo 7 /tr "'C:\Program Files\Common Files\DESIGNER\SearchApp.exe'" /f1⤵
- Process spawned unexpected child process
- Creates scheduled task(s)
PID:4200
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C:\Windows\system32\schtasks.exeschtasks.exe /create /tn "SearchApp" /sc ONLOGON /tr "'C:\Program Files\Common Files\DESIGNER\SearchApp.exe'" /rl HIGHEST /f1⤵
- Process spawned unexpected child process
- Creates scheduled task(s)
PID:4800
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C:\Windows\system32\schtasks.exeschtasks.exe /create /tn "SearchAppS" /sc MINUTE /mo 5 /tr "'C:\Program Files\Common Files\DESIGNER\SearchApp.exe'" /rl HIGHEST /f1⤵
- Process spawned unexpected child process
- Creates scheduled task(s)
PID:3068
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C:\Windows\system32\schtasks.exeschtasks.exe /create /tn "conhostc" /sc MINUTE /mo 13 /tr "'C:\odt\conhost.exe'" /f1⤵
- Process spawned unexpected child process
- Creates scheduled task(s)
PID:4976
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C:\Windows\system32\schtasks.exeschtasks.exe /create /tn "conhost" /sc ONLOGON /tr "'C:\odt\conhost.exe'" /rl HIGHEST /f1⤵
- Process spawned unexpected child process
- Creates scheduled task(s)
PID:3900
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C:\Windows\system32\schtasks.exeschtasks.exe /create /tn "conhostc" /sc MINUTE /mo 8 /tr "'C:\odt\conhost.exe'" /rl HIGHEST /f1⤵
- Process spawned unexpected child process
- Creates scheduled task(s)
PID:4416
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C:\Windows\system32\schtasks.exeschtasks.exe /create /tn "csrssc" /sc MINUTE /mo 13 /tr "'C:\Program Files\Windows Defender\csrss.exe'" /f1⤵
- Process spawned unexpected child process
- Creates scheduled task(s)
PID:4704
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C:\Windows\system32\schtasks.exeschtasks.exe /create /tn "csrss" /sc ONLOGON /tr "'C:\Program Files\Windows Defender\csrss.exe'" /rl HIGHEST /f1⤵
- Process spawned unexpected child process
- Creates scheduled task(s)
PID:2400
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C:\Windows\system32\schtasks.exeschtasks.exe /create /tn "csrssc" /sc MINUTE /mo 12 /tr "'C:\Program Files\Windows Defender\csrss.exe'" /rl HIGHEST /f1⤵
- Process spawned unexpected child process
- Creates scheduled task(s)
PID:2032
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C:\Windows\system32\schtasks.exeschtasks.exe /create /tn "servicess" /sc MINUTE /mo 5 /tr "'C:\Users\Default\Downloads\services.exe'" /f1⤵
- Process spawned unexpected child process
- Creates scheduled task(s)
PID:1660
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C:\Windows\system32\schtasks.exeschtasks.exe /create /tn "services" /sc ONLOGON /tr "'C:\Users\Default\Downloads\services.exe'" /rl HIGHEST /f1⤵
- Process spawned unexpected child process
- Creates scheduled task(s)
PID:4996
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C:\Windows\system32\schtasks.exeschtasks.exe /create /tn "servicess" /sc MINUTE /mo 13 /tr "'C:\Users\Default\Downloads\services.exe'" /rl HIGHEST /f1⤵
- Process spawned unexpected child process
- Creates scheduled task(s)
PID:2060
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
Loading Replay Monitor...
Downloads
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Filesize
2KB
MD5d85ba6ff808d9e5444a4b369f5bc2730
SHA131aa9d96590fff6981b315e0b391b575e4c0804a
SHA25684739c608a73509419748e4e20e6cc4e1846056c3fe1929a8300d5a1a488202f
SHA5128c414eb55b45212af385accc16d9d562adba2123583ce70d22b91161fe878683845512a78f04dedd4ea98ed9b174dbfa98cf696370598ad8e6fbd1e714f1f249
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Filesize
944B
MD5a8e8360d573a4ff072dcc6f09d992c88
SHA13446774433ceaf0b400073914facab11b98b6807
SHA256bf5e284e8f95122bf75ead61c7e2b40f55c96742b05330b5b1cb7915991df13b
SHA5124ee5167643d82082f57c42616007ef9be57f43f9731921bdf7bca611a914724ad94072d3c8f5b130fa54129e5328ccdebf37ba74339c37deb53e79df5cdf0dbe
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Filesize
944B
MD5a8e8360d573a4ff072dcc6f09d992c88
SHA13446774433ceaf0b400073914facab11b98b6807
SHA256bf5e284e8f95122bf75ead61c7e2b40f55c96742b05330b5b1cb7915991df13b
SHA5124ee5167643d82082f57c42616007ef9be57f43f9731921bdf7bca611a914724ad94072d3c8f5b130fa54129e5328ccdebf37ba74339c37deb53e79df5cdf0dbe
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Filesize
944B
MD5cadef9abd087803c630df65264a6c81c
SHA1babbf3636c347c8727c35f3eef2ee643dbcc4bd2
SHA256cce65b73cdfe9304bcd5207913e8b60fb69faa20cd3b684f2b0343b755b99438
SHA5127278aa87124abb382d9024a645e881e7b7cf1b84e8894943b36e018dbf0399e6858392f77980b599fa5488e2e21bf757a0702fe6419417edac93b68e0c2ec085
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Filesize
944B
MD5bd5940f08d0be56e65e5f2aaf47c538e
SHA1d7e31b87866e5e383ab5499da64aba50f03e8443
SHA2562d2f364c75bd2897504249f42cdf1d19374f5230aad68fa9154ea3d03e3031a6
SHA512c34d10c7e07da44a180fae9889b61f08903aa84e8ddfa80c31c272b1ef9d491b8cec6b8a4c836c3cb1583fe8f4955c6a8db872515de3a9e10eae09610c959406
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Filesize
1.0MB
MD5bd31e94b4143c4ce49c17d3af46bcad0
SHA1f8c51ff3ff909531d9469d4ba1bbabae101853ff
SHA256b5199d3eb28e7de8ec4a5de66cb339a03d90b297e2292473badaab98ade15c63
SHA512f96658bd19b672fd84038bd7e95c89e14f4e6f84e3ce9c6fe3216861a41203406148c6a809c2ab350d0d6c5919c845f619deb1fc9b1f1814dfce87e566bc2394
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Filesize
1.0MB
MD5bd31e94b4143c4ce49c17d3af46bcad0
SHA1f8c51ff3ff909531d9469d4ba1bbabae101853ff
SHA256b5199d3eb28e7de8ec4a5de66cb339a03d90b297e2292473badaab98ade15c63
SHA512f96658bd19b672fd84038bd7e95c89e14f4e6f84e3ce9c6fe3216861a41203406148c6a809c2ab350d0d6c5919c845f619deb1fc9b1f1814dfce87e566bc2394
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Filesize
36B
MD56783c3ee07c7d151ceac57f1f9c8bed7
SHA117468f98f95bf504cc1f83c49e49a78526b3ea03
SHA2568ab782f0f327a2021530e7230d3aee8abbecb7eed59482a3a46e78b9e3862322
SHA512c6012d4bfac1ed14d0fd9f0eabd0e1c3d647b343db292a907b246271d52a4b7469c809db43910ddba2e8c5045f9cb3d24d0af62d363281e6cb8b39ee94a183e8
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Filesize
1.0MB
MD5bd31e94b4143c4ce49c17d3af46bcad0
SHA1f8c51ff3ff909531d9469d4ba1bbabae101853ff
SHA256b5199d3eb28e7de8ec4a5de66cb339a03d90b297e2292473badaab98ade15c63
SHA512f96658bd19b672fd84038bd7e95c89e14f4e6f84e3ce9c6fe3216861a41203406148c6a809c2ab350d0d6c5919c845f619deb1fc9b1f1814dfce87e566bc2394
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Filesize
1.0MB
MD5bd31e94b4143c4ce49c17d3af46bcad0
SHA1f8c51ff3ff909531d9469d4ba1bbabae101853ff
SHA256b5199d3eb28e7de8ec4a5de66cb339a03d90b297e2292473badaab98ade15c63
SHA512f96658bd19b672fd84038bd7e95c89e14f4e6f84e3ce9c6fe3216861a41203406148c6a809c2ab350d0d6c5919c845f619deb1fc9b1f1814dfce87e566bc2394
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Filesize
197B
MD58088241160261560a02c84025d107592
SHA1083121f7027557570994c9fc211df61730455bb5
SHA2562072cc9a4a3b84d4c5178ab41c5588eea7d0103e3928e34d64f17bf97f3d1cc1
SHA51220d9369dd359315848ea30144383a0bb479d86059fdbc3b3256ac84f998193512feb3b1799ab663619920c99fe7e0ebba33ada31a3855094b956fcd351c90478