Analysis
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max time kernel
111s -
max time network
92s -
platform
windows7_x64 -
resource
win7-20240903-en -
resource tags
arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system -
submitted
21-09-2024 08:18
Static task
static1
Behavioral task
behavioral1
Sample
2e08fe695a58e1430e7425bfc093df2e723f3a3f982d585584ce198c646ebe89N.exe
Resource
win7-20240903-en
Behavioral task
behavioral2
Sample
2e08fe695a58e1430e7425bfc093df2e723f3a3f982d585584ce198c646ebe89N.exe
Resource
win10v2004-20240802-en
General
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Target
2e08fe695a58e1430e7425bfc093df2e723f3a3f982d585584ce198c646ebe89N.exe
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Size
70KB
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MD5
0f42ebc2d3d4ffb179abb3101cb8b8c0
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SHA1
a8893cde6977ffce74282bfcb76e8a666d54c8a9
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SHA256
2e08fe695a58e1430e7425bfc093df2e723f3a3f982d585584ce198c646ebe89
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SHA512
e4264bf273dbed238000ef446aaf3d40ba9348d2f23fc0b8783821bf0bbfa099ccf34173433b0f46823cd01952e697148a0fe52aa989e9cf10020f63ebdd3c4e
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SSDEEP
768:urItKyw5WHXfQmjIiIk9ecAaHSHMb96FyXRDLdXDffff3lkkkmp:ur3Z5IfQmv81ayo2yXpZXX
Malware Config
Signatures
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Sets file to hidden 1 TTPs 1 IoCs
Modifies file attributes to stop it showing in Explorer etc.
pid Process 2060 attrib.exe -
Deletes itself 1 IoCs
pid Process 3008 cmd.exe -
Executes dropped EXE 1 IoCs
pid Process 2056 iuyhost.exe -
Indicator Removal: File Deletion 1 TTPs
Adversaries may delete files left behind by the actions of their intrusion activity.
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Drops file in Windows directory 3 IoCs
description ioc Process File created C:\Windows\Debug\iuyhost.exe 2e08fe695a58e1430e7425bfc093df2e723f3a3f982d585584ce198c646ebe89N.exe File opened for modification C:\Windows\Debug\iuyhost.exe 2e08fe695a58e1430e7425bfc093df2e723f3a3f982d585584ce198c646ebe89N.exe File opened for modification C:\Windows\Debug\iuyhost.exe attrib.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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System Location Discovery: System Language Discovery 1 TTPs 4 IoCs
Attempt gather information about the system language of a victim in order to infer the geographical location of that host.
description ioc Process Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language 2e08fe695a58e1430e7425bfc093df2e723f3a3f982d585584ce198c646ebe89N.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language attrib.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language iuyhost.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language cmd.exe -
Suspicious use of AdjustPrivilegeToken 1 IoCs
description pid Process Token: SeIncBasePriorityPrivilege 1680 2e08fe695a58e1430e7425bfc093df2e723f3a3f982d585584ce198c646ebe89N.exe -
Suspicious use of WriteProcessMemory 8 IoCs
description pid Process procid_target PID 1680 wrote to memory of 2060 1680 2e08fe695a58e1430e7425bfc093df2e723f3a3f982d585584ce198c646ebe89N.exe 31 PID 1680 wrote to memory of 2060 1680 2e08fe695a58e1430e7425bfc093df2e723f3a3f982d585584ce198c646ebe89N.exe 31 PID 1680 wrote to memory of 2060 1680 2e08fe695a58e1430e7425bfc093df2e723f3a3f982d585584ce198c646ebe89N.exe 31 PID 1680 wrote to memory of 2060 1680 2e08fe695a58e1430e7425bfc093df2e723f3a3f982d585584ce198c646ebe89N.exe 31 PID 1680 wrote to memory of 3008 1680 2e08fe695a58e1430e7425bfc093df2e723f3a3f982d585584ce198c646ebe89N.exe 34 PID 1680 wrote to memory of 3008 1680 2e08fe695a58e1430e7425bfc093df2e723f3a3f982d585584ce198c646ebe89N.exe 34 PID 1680 wrote to memory of 3008 1680 2e08fe695a58e1430e7425bfc093df2e723f3a3f982d585584ce198c646ebe89N.exe 34 PID 1680 wrote to memory of 3008 1680 2e08fe695a58e1430e7425bfc093df2e723f3a3f982d585584ce198c646ebe89N.exe 34 -
Views/modifies file attributes 1 TTPs 1 IoCs
pid Process 2060 attrib.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\2e08fe695a58e1430e7425bfc093df2e723f3a3f982d585584ce198c646ebe89N.exe"C:\Users\Admin\AppData\Local\Temp\2e08fe695a58e1430e7425bfc093df2e723f3a3f982d585584ce198c646ebe89N.exe"1⤵
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1680 -
C:\Windows\SysWOW64\attrib.exeattrib +a +s +h +r C:\Windows\Debug\iuyhost.exe2⤵
- Sets file to hidden
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Views/modifies file attributes
PID:2060
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C:\Windows\SysWOW64\cmd.exe"C:\Windows\system32\cmd.exe" /c del C:\Users\Admin\AppData\Local\Temp\2E08FE~1.EXE > nul2⤵
- Deletes itself
- System Location Discovery: System Language Discovery
PID:3008
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C:\Windows\Debug\iuyhost.exeC:\Windows\Debug\iuyhost.exe1⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
PID:2056
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
70KB
MD5258141f193ec54533103a71b788efae6
SHA17b2cb2ff35b665be298616a8d62c86fc01f5e459
SHA256ee36c34acf532b59fc820792986eba91db5e34c005589c5d7183a11ee020e9a6
SHA512984102931916a60d07882562c88ed15a7be56697e2d9f942f5a23e38675c451d1bf0f0621993a96c9741d6eff43107d35aa5eb9b65e4a97801ada04f708b5c1b