Analysis
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max time kernel
141s -
max time network
124s -
platform
windows7_x64 -
resource
win7-20240705-en -
resource tags
arch:x64arch:x86image:win7-20240705-enlocale:en-usos:windows7-x64system -
submitted
28/08/2024, 23:29
Behavioral task
behavioral1
Sample
76d66c81c00eb15acf58439bb258c2bc651e7a402e545b793e178d5e9a6b3e7d.exe
Resource
win7-20240705-en
Behavioral task
behavioral2
Sample
76d66c81c00eb15acf58439bb258c2bc651e7a402e545b793e178d5e9a6b3e7d.exe
Resource
win10v2004-20240802-en
General
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Target
76d66c81c00eb15acf58439bb258c2bc651e7a402e545b793e178d5e9a6b3e7d.exe
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Size
16KB
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MD5
17de0dcd9b69840117924228c8716e69
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SHA1
049e399addd01c334679f52c284538fab08b4b7e
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SHA256
76d66c81c00eb15acf58439bb258c2bc651e7a402e545b793e178d5e9a6b3e7d
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SHA512
a94aba131467d9598b18f101cce4ef4902f22984608c2687bf8a00a60bcc12d8fb964ddd55afa92dfb864109984662671cd2ca3d5a7c470edef230260f2283e9
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SSDEEP
384:IO3qdXlIQV0YXd45xuYiMcRWnPbeVGWLjZ:IO3EVdV0YXd4DuicNV3fZ
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 2100 attrib.exe -
Deletes itself 1 IoCs
pid Process 2384 cmd.exe -
Executes dropped EXE 1 IoCs
pid Process 1920 sgchost.exe -
resource yara_rule behavioral1/memory/1476-0-0x0000000000400000-0x0000000000414000-memory.dmp upx behavioral1/files/0x00090000000120fa-3.dat upx behavioral1/memory/1476-6-0x0000000000400000-0x0000000000414000-memory.dmp upx behavioral1/memory/1920-7-0x0000000000400000-0x0000000000414000-memory.dmp upx behavioral1/memory/1920-10-0x0000000000400000-0x0000000000414000-memory.dmp upx behavioral1/memory/1920-13-0x0000000000400000-0x0000000000414000-memory.dmp upx behavioral1/memory/1920-16-0x0000000000400000-0x0000000000414000-memory.dmp upx behavioral1/memory/1920-19-0x0000000000400000-0x0000000000414000-memory.dmp upx -
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 opened for modification C:\Windows\Debug\sgchost.exe 76d66c81c00eb15acf58439bb258c2bc651e7a402e545b793e178d5e9a6b3e7d.exe File opened for modification C:\Windows\Debug\sgchost.exe attrib.exe File created C:\Windows\Debug\sgchost.exe 76d66c81c00eb15acf58439bb258c2bc651e7a402e545b793e178d5e9a6b3e7d.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 76d66c81c00eb15acf58439bb258c2bc651e7a402e545b793e178d5e9a6b3e7d.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language attrib.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language sgchost.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language cmd.exe -
Suspicious use of AdjustPrivilegeToken 1 IoCs
description pid Process Token: SeIncBasePriorityPrivilege 1476 76d66c81c00eb15acf58439bb258c2bc651e7a402e545b793e178d5e9a6b3e7d.exe -
Suspicious use of WriteProcessMemory 8 IoCs
description pid Process procid_target PID 1476 wrote to memory of 2100 1476 76d66c81c00eb15acf58439bb258c2bc651e7a402e545b793e178d5e9a6b3e7d.exe 29 PID 1476 wrote to memory of 2100 1476 76d66c81c00eb15acf58439bb258c2bc651e7a402e545b793e178d5e9a6b3e7d.exe 29 PID 1476 wrote to memory of 2100 1476 76d66c81c00eb15acf58439bb258c2bc651e7a402e545b793e178d5e9a6b3e7d.exe 29 PID 1476 wrote to memory of 2100 1476 76d66c81c00eb15acf58439bb258c2bc651e7a402e545b793e178d5e9a6b3e7d.exe 29 PID 1476 wrote to memory of 2384 1476 76d66c81c00eb15acf58439bb258c2bc651e7a402e545b793e178d5e9a6b3e7d.exe 32 PID 1476 wrote to memory of 2384 1476 76d66c81c00eb15acf58439bb258c2bc651e7a402e545b793e178d5e9a6b3e7d.exe 32 PID 1476 wrote to memory of 2384 1476 76d66c81c00eb15acf58439bb258c2bc651e7a402e545b793e178d5e9a6b3e7d.exe 32 PID 1476 wrote to memory of 2384 1476 76d66c81c00eb15acf58439bb258c2bc651e7a402e545b793e178d5e9a6b3e7d.exe 32 -
Views/modifies file attributes 1 TTPs 1 IoCs
pid Process 2100 attrib.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\76d66c81c00eb15acf58439bb258c2bc651e7a402e545b793e178d5e9a6b3e7d.exe"C:\Users\Admin\AppData\Local\Temp\76d66c81c00eb15acf58439bb258c2bc651e7a402e545b793e178d5e9a6b3e7d.exe"1⤵
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1476 -
C:\Windows\SysWOW64\attrib.exeattrib +a +s +h +r C:\Windows\Debug\sgchost.exe2⤵
- Sets file to hidden
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Views/modifies file attributes
PID:2100
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C:\Windows\SysWOW64\cmd.exe"C:\Windows\system32\cmd.exe" /c del C:\Users\Admin\AppData\Local\Temp\76D66C~1.EXE > nul2⤵
- Deletes itself
- System Location Discovery: System Language Discovery
PID:2384
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C:\Windows\Debug\sgchost.exeC:\Windows\Debug\sgchost.exe1⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
PID:1920
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
16KB
MD57c8fd75a07c64e997ca5bb52d98971f4
SHA13c8fc077deb3b911ed453fcf37b508c9ac95fd3f
SHA256dc211cd0d93c92e6bbed4b4b64ec9c1523cc884ce8f2c906837be5160a775a9b
SHA5121535d9633e3139e31935ba1bd620e8d549dfb95a9db13d4c94a1cc2f01791b8a73d9d5932a75a8df889e5b9b1a022eb24868550dbdb68ba6320728b4f5ecfde8