Analysis
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max time kernel
150s -
max time network
151s -
platform
windows10-2004_x64 -
resource
win10v2004-20230621-en -
resource tags
arch:x64arch:x86image:win10v2004-20230621-enlocale:en-usos:windows10-2004-x64system -
submitted
25-06-2023 21:37
Static task
static1
Behavioral task
behavioral1
Sample
HEUR-Trojan.MSIL.Generic-d15f99dbd30bae6e896c.exe
Resource
win7-20230621-en
Behavioral task
behavioral2
Sample
HEUR-Trojan.MSIL.Generic-d15f99dbd30bae6e896c.exe
Resource
win10v2004-20230621-en
General
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Target
HEUR-Trojan.MSIL.Generic-d15f99dbd30bae6e896c.exe
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Size
171KB
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MD5
7a6a6b35d4bc575897a1420134afc96a
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SHA1
9c5e87ce87b70a52f57097172c2babde2021454b
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SHA256
d15f99dbd30bae6e896c52a810fbcba080ae3ba76f3fc0d9a7761c5736ec7c81
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SHA512
b879c2bf81017f8f97d4db3b458d6f3ff6eb1acb6e28394d9a292d58e83194857c6c5981378170e81d383340eb3eff42d2d64ce54ebd7a3e7357988428da5d2e
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SSDEEP
3072:k/0CVy40hsbOeOyupBfOP8S6Uj9Av0fEdiFxFXwElgdEA/fLpujDqTrk3mjcqfZ:kswhwyJLjzfiib53W/fLpsDq/k7qf
Malware Config
Extracted
netwire
sosclient.duckdns.org:9002
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activex_autorun
true
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activex_key
{OTGC73Q0-N4WA-4861-311L-BE075477ANH7}
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copy_executable
false
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delete_original
false
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host_id
08-%Rand%
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lock_executable
true
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mutex
stostmDW
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offline_keylogger
false
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password
10203010Aa
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registry_autorun
true
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startup_name
Windows defender
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use_mutex
true
Signatures
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NetWire RAT payload 4 IoCs
resource yara_rule behavioral2/memory/4772-152-0x0000000000400000-0x0000000000420000-memory.dmp netwire behavioral2/memory/4772-154-0x0000000000400000-0x0000000000420000-memory.dmp netwire behavioral2/memory/4772-157-0x0000000000400000-0x0000000000420000-memory.dmp netwire behavioral2/memory/4772-158-0x0000000000400000-0x0000000000420000-memory.dmp netwire -
Modifies Installed Components in the registry 2 TTPs 2 IoCs
description ioc Process Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Active Setup\Installed Components\{OTGC73Q0-N4WA-4861-311L-BE075477ANH7}\StubPath = "\"C:\\Windows\\Microsoft.NET\\Framework\\v2.0.50727\\AppLaunch.exe\"" AppLaunch.exe Key created \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Active Setup\Installed Components\{OTGC73Q0-N4WA-4861-311L-BE075477ANH7} AppLaunch.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-1-5-21-3259792829-1422303781-2047321929-1000\Control Panel\International\Geo\Nation HEUR-Trojan.MSIL.Generic-d15f99dbd30bae6e896c.exe Key value queried \REGISTRY\USER\S-1-5-21-3259792829-1422303781-2047321929-1000\Control Panel\International\Geo\Nation rundlll32.exe -
Drops startup file 3 IoCs
description ioc Process File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\rundlll32.exe HEUR-Trojan.MSIL.Generic-d15f99dbd30bae6e896c.exe File created C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\rundlll32.p5iaodyb.lnk HEUR-Trojan.MSIL.Generic-d15f99dbd30bae6e896c.exe File created C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\rundlll32.exe HEUR-Trojan.MSIL.Generic-d15f99dbd30bae6e896c.exe -
Executes dropped EXE 2 IoCs
pid Process 2908 rundlll32.exe 396 rundlll32.exe -
Adds Run key to start application 2 TTPs 2 IoCs
description ioc Process Key created \REGISTRY\USER\S-1-5-21-3259792829-1422303781-2047321929-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\ AppLaunch.exe Set value (str) \REGISTRY\USER\S-1-5-21-3259792829-1422303781-2047321929-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Windows defender = "C:\\Windows\\Microsoft.NET\\Framework\\v2.0.50727\\AppLaunch.exe" AppLaunch.exe -
Suspicious use of SetThreadContext 1 IoCs
description pid Process procid_target PID 2908 set thread context of 4772 2908 rundlll32.exe 79 -
Drops file in Windows directory 3 IoCs
description ioc Process File opened for modification C:\Windows\Microsoft.NET\Framework\v2.0.50727\Settings.ini AppLaunch.exe File opened for modification C:\Windows\Microsoft.NET\Framework\v2.0.50727\AppLaunch.exe AppLaunch.exe File created C:\Windows\Microsoft.NET\Framework\v2.0.50727\Settings.ini AppLaunch.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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Suspicious use of AdjustPrivilegeToken 3 IoCs
description pid Process Token: SeDebugPrivilege 4392 HEUR-Trojan.MSIL.Generic-d15f99dbd30bae6e896c.exe Token: SeDebugPrivilege 2908 rundlll32.exe Token: SeDebugPrivilege 396 rundlll32.exe -
Suspicious use of FindShellTrayWindow 1 IoCs
pid Process 4392 HEUR-Trojan.MSIL.Generic-d15f99dbd30bae6e896c.exe -
Suspicious use of SendNotifyMessage 1 IoCs
pid Process 4392 HEUR-Trojan.MSIL.Generic-d15f99dbd30bae6e896c.exe -
Suspicious use of WriteProcessMemory 14 IoCs
description pid Process procid_target PID 4392 wrote to memory of 2908 4392 HEUR-Trojan.MSIL.Generic-d15f99dbd30bae6e896c.exe 76 PID 4392 wrote to memory of 2908 4392 HEUR-Trojan.MSIL.Generic-d15f99dbd30bae6e896c.exe 76 PID 4392 wrote to memory of 2908 4392 HEUR-Trojan.MSIL.Generic-d15f99dbd30bae6e896c.exe 76 PID 2908 wrote to memory of 396 2908 rundlll32.exe 78 PID 2908 wrote to memory of 396 2908 rundlll32.exe 78 PID 2908 wrote to memory of 396 2908 rundlll32.exe 78 PID 2908 wrote to memory of 4772 2908 rundlll32.exe 79 PID 2908 wrote to memory of 4772 2908 rundlll32.exe 79 PID 2908 wrote to memory of 4772 2908 rundlll32.exe 79 PID 2908 wrote to memory of 4772 2908 rundlll32.exe 79 PID 2908 wrote to memory of 4772 2908 rundlll32.exe 79 PID 2908 wrote to memory of 4772 2908 rundlll32.exe 79 PID 2908 wrote to memory of 4772 2908 rundlll32.exe 79 PID 2908 wrote to memory of 4772 2908 rundlll32.exe 79
Processes
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C:\Users\Admin\AppData\Local\Temp\HEUR-Trojan.MSIL.Generic-d15f99dbd30bae6e896c.exe"C:\Users\Admin\AppData\Local\Temp\HEUR-Trojan.MSIL.Generic-d15f99dbd30bae6e896c.exe"1⤵
- Checks computer location settings
- Drops startup file
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
- Suspicious use of WriteProcessMemory
PID:4392 -
C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\rundlll32.exe"C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\rundlll32.exe"2⤵
- Checks computer location settings
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2908 -
C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\rundlll32.exe"C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\rundlll32.exe"3⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
PID:396
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C:\Windows\Microsoft.NET\Framework\v2.0.50727\AppLaunch.exe"C:\Windows\Microsoft.NET\Framework\v2.0.50727\AppLaunch.exe"3⤵
- Modifies Installed Components in the registry
- Adds Run key to start application
- Drops file in Windows directory
PID:4772
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Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
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Filesize
171KB
MD57a6a6b35d4bc575897a1420134afc96a
SHA19c5e87ce87b70a52f57097172c2babde2021454b
SHA256d15f99dbd30bae6e896c52a810fbcba080ae3ba76f3fc0d9a7761c5736ec7c81
SHA512b879c2bf81017f8f97d4db3b458d6f3ff6eb1acb6e28394d9a292d58e83194857c6c5981378170e81d383340eb3eff42d2d64ce54ebd7a3e7357988428da5d2e
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Filesize
171KB
MD57a6a6b35d4bc575897a1420134afc96a
SHA19c5e87ce87b70a52f57097172c2babde2021454b
SHA256d15f99dbd30bae6e896c52a810fbcba080ae3ba76f3fc0d9a7761c5736ec7c81
SHA512b879c2bf81017f8f97d4db3b458d6f3ff6eb1acb6e28394d9a292d58e83194857c6c5981378170e81d383340eb3eff42d2d64ce54ebd7a3e7357988428da5d2e
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Filesize
171KB
MD57a6a6b35d4bc575897a1420134afc96a
SHA19c5e87ce87b70a52f57097172c2babde2021454b
SHA256d15f99dbd30bae6e896c52a810fbcba080ae3ba76f3fc0d9a7761c5736ec7c81
SHA512b879c2bf81017f8f97d4db3b458d6f3ff6eb1acb6e28394d9a292d58e83194857c6c5981378170e81d383340eb3eff42d2d64ce54ebd7a3e7357988428da5d2e
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Filesize
171KB
MD57a6a6b35d4bc575897a1420134afc96a
SHA19c5e87ce87b70a52f57097172c2babde2021454b
SHA256d15f99dbd30bae6e896c52a810fbcba080ae3ba76f3fc0d9a7761c5736ec7c81
SHA512b879c2bf81017f8f97d4db3b458d6f3ff6eb1acb6e28394d9a292d58e83194857c6c5981378170e81d383340eb3eff42d2d64ce54ebd7a3e7357988428da5d2e