Analysis
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max time kernel
120s -
max time network
56s -
platform
windows7_x64 -
resource
win7-20240708-en -
resource tags
arch:x64arch:x86image:win7-20240708-enlocale:en-usos:windows7-x64system -
submitted
02/10/2024, 16:22
Static task
static1
Behavioral task
behavioral1
Sample
6b163e3d71cacd4ab904745d3c1fb61dcba4f61ca2e737bf14c266370758b583N.exe
Resource
win7-20240708-en
Behavioral task
behavioral2
Sample
6b163e3d71cacd4ab904745d3c1fb61dcba4f61ca2e737bf14c266370758b583N.exe
Resource
win10v2004-20240802-en
General
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Target
6b163e3d71cacd4ab904745d3c1fb61dcba4f61ca2e737bf14c266370758b583N.exe
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Size
434KB
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MD5
404250c802183c1d87eee4fb1ea99a20
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SHA1
1c6f628f57b10cc26ba42ab6cf248a4098e28a3a
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SHA256
6b163e3d71cacd4ab904745d3c1fb61dcba4f61ca2e737bf14c266370758b583
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SHA512
a3dee82943f48697d31629311660dbe56093d287f109cfd8238c43fdbf10dfeb9d4dc82b5eed3390e2e44292ebbd3af6552162db42a68f857e0a35d551ba11a6
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SSDEEP
6144:UsLqdufVUNDavZbKhDqacbA4OEwr/iEk72C0RtWsTBV+UdvrEFp7hKw:PFUNDavVSDJc8HEj74RtLBjvrEH7Z
Malware Config
Signatures
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Modifies visiblity of hidden/system files in Explorer 2 TTPs 2 IoCs
description ioc Process Set value (int) \REGISTRY\USER\S-1-5-21-1506706701-1246725540-2219210854-1000\Software\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0" svchost.exe Set value (int) \REGISTRY\USER\S-1-5-21-1506706701-1246725540-2219210854-1000\Software\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0" explorer.exe -
Detects Floxif payload 1 IoCs
resource yara_rule behavioral1/files/0x00070000000187c0-18.dat floxif -
ACProtect 1.3x - 1.4x DLL software 1 IoCs
Detects file using ACProtect software.
resource yara_rule behavioral1/files/0x00070000000187c0-18.dat acprotect -
Executes dropped EXE 6 IoCs
pid Process 2112 6b163e3d71cacd4ab904745d3c1fb61dcba4f61ca2e737bf14c266370758b583n.exe 320 icsys.icn.exe 2808 explorer.exe 2744 spoolsv.exe 2636 svchost.exe 2668 spoolsv.exe -
Loads dropped DLL 8 IoCs
pid Process 2384 6b163e3d71cacd4ab904745d3c1fb61dcba4f61ca2e737bf14c266370758b583N.exe 2384 6b163e3d71cacd4ab904745d3c1fb61dcba4f61ca2e737bf14c266370758b583N.exe 2112 6b163e3d71cacd4ab904745d3c1fb61dcba4f61ca2e737bf14c266370758b583n.exe 2384 6b163e3d71cacd4ab904745d3c1fb61dcba4f61ca2e737bf14c266370758b583N.exe 320 icsys.icn.exe 2808 explorer.exe 2744 spoolsv.exe 2636 svchost.exe -
Adds Run key to start application 2 TTPs 4 IoCs
description ioc Process Set value (str) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\RunOnce\Explorer = "c:\\windows\\resources\\themes\\explorer.exe RO" explorer.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\RunOnce\Svchost = "c:\\windows\\resources\\svchost.exe RO" explorer.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\RunOnce\Explorer = "c:\\windows\\resources\\themes\\explorer.exe RO" svchost.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\RunOnce\Svchost = "c:\\windows\\resources\\svchost.exe RO" svchost.exe -
Enumerates connected drives 3 TTPs 1 IoCs
Attempts to read the root path of hard drives other than the default C: drive.
description ioc Process File opened (read-only) \??\e: 6b163e3d71cacd4ab904745d3c1fb61dcba4f61ca2e737bf14c266370758b583n.exe -
Drops file in System32 directory 2 IoCs
description ioc Process File opened for modification C:\Windows\SysWOW64\explorer.exe explorer.exe File opened for modification C:\Windows\SysWOW64\explorer.exe svchost.exe -
resource yara_rule behavioral1/files/0x00070000000187c0-18.dat upx behavioral1/memory/2112-20-0x0000000010000000-0x0000000010030000-memory.dmp upx behavioral1/memory/2112-75-0x0000000010000000-0x0000000010030000-memory.dmp upx behavioral1/memory/2112-100-0x0000000010000000-0x0000000010030000-memory.dmp upx behavioral1/memory/2112-104-0x0000000010000000-0x0000000010030000-memory.dmp upx behavioral1/memory/2112-108-0x0000000010000000-0x0000000010030000-memory.dmp upx behavioral1/memory/2112-112-0x0000000010000000-0x0000000010030000-memory.dmp upx behavioral1/memory/2112-116-0x0000000010000000-0x0000000010030000-memory.dmp upx behavioral1/memory/2112-120-0x0000000010000000-0x0000000010030000-memory.dmp upx -
Drops file in Program Files directory 2 IoCs
description ioc Process File created C:\Program Files\Common Files\System\symsrv.dll 6b163e3d71cacd4ab904745d3c1fb61dcba4f61ca2e737bf14c266370758b583n.exe File created \??\c:\program files\common files\system\symsrv.dll.000 6b163e3d71cacd4ab904745d3c1fb61dcba4f61ca2e737bf14c266370758b583n.exe -
Drops file in Windows directory 5 IoCs
description ioc Process File opened for modification \??\c:\windows\resources\spoolsv.exe explorer.exe File opened for modification \??\c:\windows\resources\svchost.exe spoolsv.exe File opened for modification C:\Windows\Resources\tjud.exe explorer.exe File opened for modification C:\Windows\Resources\Themes\icsys.icn.exe 6b163e3d71cacd4ab904745d3c1fb61dcba4f61ca2e737bf14c266370758b583N.exe File opened for modification \??\c:\windows\resources\themes\explorer.exe icsys.icn.exe -
System Location Discovery: System Language Discovery 1 TTPs 9 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 spoolsv.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language schtasks.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language schtasks.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language explorer.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language svchost.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language icsys.icn.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language spoolsv.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language 6b163e3d71cacd4ab904745d3c1fb61dcba4f61ca2e737bf14c266370758b583N.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language 6b163e3d71cacd4ab904745d3c1fb61dcba4f61ca2e737bf14c266370758b583n.exe -
description ioc Process Key created \REGISTRY\USER\S-1-5-21-1506706701-1246725540-2219210854-1000\Software\Microsoft\Internet Explorer\Main 6b163e3d71cacd4ab904745d3c1fb61dcba4f61ca2e737bf14c266370758b583n.exe -
Scheduled Task/Job: Scheduled Task 1 TTPs 2 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
pid Process 2780 schtasks.exe 1752 schtasks.exe -
Suspicious behavior: EnumeratesProcesses 64 IoCs
pid Process 2384 6b163e3d71cacd4ab904745d3c1fb61dcba4f61ca2e737bf14c266370758b583N.exe 2384 6b163e3d71cacd4ab904745d3c1fb61dcba4f61ca2e737bf14c266370758b583N.exe 2384 6b163e3d71cacd4ab904745d3c1fb61dcba4f61ca2e737bf14c266370758b583N.exe 2384 6b163e3d71cacd4ab904745d3c1fb61dcba4f61ca2e737bf14c266370758b583N.exe 2384 6b163e3d71cacd4ab904745d3c1fb61dcba4f61ca2e737bf14c266370758b583N.exe 2384 6b163e3d71cacd4ab904745d3c1fb61dcba4f61ca2e737bf14c266370758b583N.exe 2384 6b163e3d71cacd4ab904745d3c1fb61dcba4f61ca2e737bf14c266370758b583N.exe 2384 6b163e3d71cacd4ab904745d3c1fb61dcba4f61ca2e737bf14c266370758b583N.exe 2384 6b163e3d71cacd4ab904745d3c1fb61dcba4f61ca2e737bf14c266370758b583N.exe 2384 6b163e3d71cacd4ab904745d3c1fb61dcba4f61ca2e737bf14c266370758b583N.exe 2384 6b163e3d71cacd4ab904745d3c1fb61dcba4f61ca2e737bf14c266370758b583N.exe 2384 6b163e3d71cacd4ab904745d3c1fb61dcba4f61ca2e737bf14c266370758b583N.exe 2384 6b163e3d71cacd4ab904745d3c1fb61dcba4f61ca2e737bf14c266370758b583N.exe 2384 6b163e3d71cacd4ab904745d3c1fb61dcba4f61ca2e737bf14c266370758b583N.exe 2384 6b163e3d71cacd4ab904745d3c1fb61dcba4f61ca2e737bf14c266370758b583N.exe 2384 6b163e3d71cacd4ab904745d3c1fb61dcba4f61ca2e737bf14c266370758b583N.exe 320 icsys.icn.exe 320 icsys.icn.exe 320 icsys.icn.exe 320 icsys.icn.exe 320 icsys.icn.exe 320 icsys.icn.exe 320 icsys.icn.exe 320 icsys.icn.exe 320 icsys.icn.exe 320 icsys.icn.exe 320 icsys.icn.exe 320 icsys.icn.exe 320 icsys.icn.exe 320 icsys.icn.exe 320 icsys.icn.exe 320 icsys.icn.exe 320 icsys.icn.exe 2808 explorer.exe 2808 explorer.exe 2808 explorer.exe 2808 explorer.exe 2808 explorer.exe 2808 explorer.exe 2808 explorer.exe 2808 explorer.exe 2808 explorer.exe 2808 explorer.exe 2808 explorer.exe 2808 explorer.exe 2808 explorer.exe 2808 explorer.exe 2808 explorer.exe 2808 explorer.exe 2636 svchost.exe 2636 svchost.exe 2636 svchost.exe 2636 svchost.exe 2636 svchost.exe 2636 svchost.exe 2636 svchost.exe 2636 svchost.exe 2636 svchost.exe 2636 svchost.exe 2636 svchost.exe 2636 svchost.exe 2636 svchost.exe 2636 svchost.exe 2636 svchost.exe -
Suspicious behavior: GetForegroundWindowSpam 2 IoCs
pid Process 2808 explorer.exe 2636 svchost.exe -
Suspicious use of AdjustPrivilegeToken 1 IoCs
description pid Process Token: SeDebugPrivilege 2112 6b163e3d71cacd4ab904745d3c1fb61dcba4f61ca2e737bf14c266370758b583n.exe -
Suspicious use of SetWindowsHookEx 14 IoCs
pid Process 2384 6b163e3d71cacd4ab904745d3c1fb61dcba4f61ca2e737bf14c266370758b583N.exe 2384 6b163e3d71cacd4ab904745d3c1fb61dcba4f61ca2e737bf14c266370758b583N.exe 2112 6b163e3d71cacd4ab904745d3c1fb61dcba4f61ca2e737bf14c266370758b583n.exe 2112 6b163e3d71cacd4ab904745d3c1fb61dcba4f61ca2e737bf14c266370758b583n.exe 320 icsys.icn.exe 320 icsys.icn.exe 2808 explorer.exe 2808 explorer.exe 2744 spoolsv.exe 2744 spoolsv.exe 2636 svchost.exe 2636 svchost.exe 2668 spoolsv.exe 2668 spoolsv.exe -
Suspicious use of WriteProcessMemory 36 IoCs
description pid Process procid_target PID 2384 wrote to memory of 2112 2384 6b163e3d71cacd4ab904745d3c1fb61dcba4f61ca2e737bf14c266370758b583N.exe 30 PID 2384 wrote to memory of 2112 2384 6b163e3d71cacd4ab904745d3c1fb61dcba4f61ca2e737bf14c266370758b583N.exe 30 PID 2384 wrote to memory of 2112 2384 6b163e3d71cacd4ab904745d3c1fb61dcba4f61ca2e737bf14c266370758b583N.exe 30 PID 2384 wrote to memory of 2112 2384 6b163e3d71cacd4ab904745d3c1fb61dcba4f61ca2e737bf14c266370758b583N.exe 30 PID 2384 wrote to memory of 320 2384 6b163e3d71cacd4ab904745d3c1fb61dcba4f61ca2e737bf14c266370758b583N.exe 31 PID 2384 wrote to memory of 320 2384 6b163e3d71cacd4ab904745d3c1fb61dcba4f61ca2e737bf14c266370758b583N.exe 31 PID 2384 wrote to memory of 320 2384 6b163e3d71cacd4ab904745d3c1fb61dcba4f61ca2e737bf14c266370758b583N.exe 31 PID 2384 wrote to memory of 320 2384 6b163e3d71cacd4ab904745d3c1fb61dcba4f61ca2e737bf14c266370758b583N.exe 31 PID 320 wrote to memory of 2808 320 icsys.icn.exe 32 PID 320 wrote to memory of 2808 320 icsys.icn.exe 32 PID 320 wrote to memory of 2808 320 icsys.icn.exe 32 PID 320 wrote to memory of 2808 320 icsys.icn.exe 32 PID 2808 wrote to memory of 2744 2808 explorer.exe 33 PID 2808 wrote to memory of 2744 2808 explorer.exe 33 PID 2808 wrote to memory of 2744 2808 explorer.exe 33 PID 2808 wrote to memory of 2744 2808 explorer.exe 33 PID 2744 wrote to memory of 2636 2744 spoolsv.exe 34 PID 2744 wrote to memory of 2636 2744 spoolsv.exe 34 PID 2744 wrote to memory of 2636 2744 spoolsv.exe 34 PID 2744 wrote to memory of 2636 2744 spoolsv.exe 34 PID 2636 wrote to memory of 2668 2636 svchost.exe 35 PID 2636 wrote to memory of 2668 2636 svchost.exe 35 PID 2636 wrote to memory of 2668 2636 svchost.exe 35 PID 2636 wrote to memory of 2668 2636 svchost.exe 35 PID 2808 wrote to memory of 2504 2808 explorer.exe 36 PID 2808 wrote to memory of 2504 2808 explorer.exe 36 PID 2808 wrote to memory of 2504 2808 explorer.exe 36 PID 2808 wrote to memory of 2504 2808 explorer.exe 36 PID 2636 wrote to memory of 2780 2636 svchost.exe 37 PID 2636 wrote to memory of 2780 2636 svchost.exe 37 PID 2636 wrote to memory of 2780 2636 svchost.exe 37 PID 2636 wrote to memory of 2780 2636 svchost.exe 37 PID 2636 wrote to memory of 1752 2636 svchost.exe 43 PID 2636 wrote to memory of 1752 2636 svchost.exe 43 PID 2636 wrote to memory of 1752 2636 svchost.exe 43 PID 2636 wrote to memory of 1752 2636 svchost.exe 43
Processes
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C:\Users\Admin\AppData\Local\Temp\6b163e3d71cacd4ab904745d3c1fb61dcba4f61ca2e737bf14c266370758b583N.exe"C:\Users\Admin\AppData\Local\Temp\6b163e3d71cacd4ab904745d3c1fb61dcba4f61ca2e737bf14c266370758b583N.exe"1⤵
- Loads dropped DLL
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2384 -
\??\c:\users\admin\appdata\local\temp\6b163e3d71cacd4ab904745d3c1fb61dcba4f61ca2e737bf14c266370758b583n.exec:\users\admin\appdata\local\temp\6b163e3d71cacd4ab904745d3c1fb61dcba4f61ca2e737bf14c266370758b583n.exe2⤵
- Executes dropped EXE
- Loads dropped DLL
- Enumerates connected drives
- Drops file in Program Files directory
- System Location Discovery: System Language Discovery
- Modifies Internet Explorer settings
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
PID:2112
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C:\Windows\Resources\Themes\icsys.icn.exeC:\Windows\Resources\Themes\icsys.icn.exe2⤵
- Executes dropped EXE
- Loads dropped DLL
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:320 -
\??\c:\windows\resources\themes\explorer.exec:\windows\resources\themes\explorer.exe3⤵
- Modifies visiblity of hidden/system files in Explorer
- Executes dropped EXE
- Loads dropped DLL
- Adds Run key to start application
- Drops file in System32 directory
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2808 -
\??\c:\windows\resources\spoolsv.exec:\windows\resources\spoolsv.exe SE4⤵
- Executes dropped EXE
- Loads dropped DLL
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2744 -
\??\c:\windows\resources\svchost.exec:\windows\resources\svchost.exe5⤵
- Modifies visiblity of hidden/system files in Explorer
- Executes dropped EXE
- Loads dropped DLL
- Adds Run key to start application
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2636 -
\??\c:\windows\resources\spoolsv.exec:\windows\resources\spoolsv.exe PR6⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
PID:2668
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C:\Windows\SysWOW64\schtasks.exeschtasks /create /tn "svchost" /tr "c:\windows\resources\svchost.exe" /sc daily /st 16:24 /f6⤵
- System Location Discovery: System Language Discovery
- Scheduled Task/Job: Scheduled Task
PID:2780
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C:\Windows\SysWOW64\schtasks.exeschtasks /create /tn "svchost" /tr "c:\windows\resources\svchost.exe" /sc daily /st 16:25 /f6⤵
- System Location Discovery: System Language Discovery
- Scheduled Task/Job: Scheduled Task
PID:1752
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C:\Windows\Explorer.exeC:\Windows\Explorer.exe4⤵PID:2504
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Network
MITRE ATT&CK Enterprise v15
Persistence
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Scheduled Task/Job
1Scheduled Task
1Privilege Escalation
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Scheduled Task/Job
1Scheduled Task
1Defense Evasion
Hide Artifacts
1Hidden Files and Directories
1Modify Registry
3Replay Monitor
Loading Replay Monitor...
Downloads
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Filesize
175B
MD51130c911bf5db4b8f7cf9b6f4b457623
SHA148e734c4bc1a8b5399bff4954e54b268bde9d54c
SHA256eba08cc8182f379392a97f542b350ea0dbbe5e4009472f35af20e3d857eafdf1
SHA51294e2511ef2c53494c2aff0960266491ffc0e54e75185427d1ccedae27c286992c754ca94cbb0c9ea36e3f04cd4eb7f032c551cf2d4b309f292906303f1a75fa0
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Filesize
135KB
MD56974287aeb5d7c8cc65f36dd7ac7302c
SHA1168a4911926cb7ee5d3edd9cc38c7bfee2742170
SHA256b5d6880a18d4faa6090d074ba1f8b91157bd012b55b778430ca1771a9b6498a7
SHA512a0bcecf3ca63587a771785bfbd6ab068aee691a93536b8c7fc3fc92567f36b451fc397f7b47e4600cd8b213c98b35c358c94572c8cdf80cf8f16e19b7986feec
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Filesize
67KB
MD57574cf2c64f35161ab1292e2f532aabf
SHA114ba3fa927a06224dfe587014299e834def4644f
SHA256de055a89de246e629a8694bde18af2b1605e4b9b493c7e4aef669dd67acf5085
SHA5124db19f2d8d5bc1c7bbb812d3fa9c43b80fa22140b346d2760f090b73aed8a5177edb4bddc647a6ebd5a2db8565be5a1a36a602b0d759e38540d9a584ba5896ab
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\Users\Admin\AppData\Local\Temp\6b163e3d71cacd4ab904745d3c1fb61dcba4f61ca2e737bf14c266370758b583n.exe
Filesize299KB
MD53adba60b5a53a6b82b736f76a1a74885
SHA1e8b3172c4b9522efdcb68ef6b17434c83f274a7b
SHA256384a1de17e4201b2e6be7685c8b79faed9b1632e6175c8c0128f469a6906bc15
SHA5128b1161fcbb35a34d50f005a53a981790f6495eb350cb1f9eb258eb5c5f8efeb965606896f07c872c4279e3fc1e21172df1246bdfa5bcb941173f0ab04af3f2ba
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Filesize
135KB
MD5d5d758c4f3f443a2c960af5169e3730b
SHA139d9c42c4b3b1836ca349ab5c0bb336503e037ab
SHA25657a7203209ccb9fe41bf4ea3c7c112d2c62a64466e2e421c0d1d1ac2af03a1cb
SHA5126a238f6d50410c278e4bfc27a27858c4f83bf6ef0b0531ed207e4ea23ee64cb07d5fde6a2279c25d1032929a30d40c0c0a20c84141a399a98d17bb8618729d81
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Filesize
135KB
MD58d0a07bdc59f8129d882e4e50f0fd135
SHA112236569a9ed0f0ff9f119181eca5c59bf710b9b
SHA2568505dfa92d464b3f8ae09b57069e54b4864b50d780bf63a47e95108cdb1bc9da
SHA5125f639341ffba52e63e702fae5bb93b0b8356fe450e2afd6be6147d4c8634911fa29e0c9f620bca7c9d7710eeb30c662a5ec8b814ce63c60f4b43a659dffb5dc5
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Filesize
135KB
MD55ab89d2745f45e60e62636e4f3ff6832
SHA1624b57797fe386f16d460ac76bfa11048caa8cc3
SHA256c5ebcdab04a7af6e4ffd8c896794a9586b67e9d6143321120f7f65f1e7dbf697
SHA51288469ba3379c033d6732cabc6f05033e99ee3b5feee7952ab20889cd931040545849f892f469faca62b7421ef7672a2ad2718d7f9679c31909d55d7400a98483