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Analysis
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max time kernel
145s -
max time network
152s -
platform
windows10-2004_x64 -
resource
win10v2004-20231222-en -
resource tags
arch:x64arch:x86image:win10v2004-20231222-enlocale:en-usos:windows10-2004-x64system -
submitted
24/12/2023, 20:24
Behavioral task
behavioral1
Sample
10b21af4da8e704772b3a68bf4195f84.exe
Resource
win7-20231215-en
Behavioral task
behavioral2
Sample
10b21af4da8e704772b3a68bf4195f84.exe
Resource
win10v2004-20231222-en
General
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Target
10b21af4da8e704772b3a68bf4195f84.exe
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Size
125KB
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MD5
10b21af4da8e704772b3a68bf4195f84
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SHA1
df782b72c2e14f73fb7fdf3bcf6404b1285ee099
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SHA256
b962460234df921e94fb18cfdb308141b7d6a75304089a6aa02be100a0a083c3
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SHA512
85c571b19fadc731210469981abce226c2de02aeb5123cc5d31e50443cff6e498ae53ad1826346105f268a29b37a42d5e11eca33cbadee6d6194eb577f051b81
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SSDEEP
3072:vpDBAKMk0gAN4lgOjCFQ2nf6bdtUNhomcN:vfMPgwIyNSb/Yho
Malware Config
Signatures
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resource yara_rule behavioral2/files/0x0007000000023204-5.dat aspack_v212_v242 -
Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
description ioc Process Key value queried \REGISTRY\USER\S-1-5-21-3803511929-1339359695-2191195476-1000\Control Panel\International\Geo\Nation 10b21af4da8e704772b3a68bf4195f84.exe -
Executes dropped EXE 1 IoCs
pid Process 4112 NetMeeting.exe -
Loads dropped DLL 3 IoCs
pid Process 916 rundll32.exe 764 rundll32.exe 2508 10b21af4da8e704772b3a68bf4195f84.exe -
Adds Run key to start application 2 TTPs 6 IoCs
description ioc Process Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\Hardware Profile = "C:\\Windows\\system32\\hxdef.exe" 10b21af4da8e704772b3a68bf4195f84.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\VFW Encoder/Decoder Settings = "RUNDLL32.EXE MSSIGN30.DLL ondll_reg" 10b21af4da8e704772b3a68bf4195f84.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\Microsoft NetMeeting Associates, Inc. = "NetMeeting.exe" 10b21af4da8e704772b3a68bf4195f84.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\runServices\SystemTra = "C:\\Windows\\SysTra.EXE" 10b21af4da8e704772b3a68bf4195f84.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\Shell Extension = "C:\\Windows\\system32\\spollsv.exe" NetMeeting.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\Protected Storage = "RUNDLL32.EXE MSSIGN30.DLL ondll_reg" rundll32.exe -
Enumerates connected drives 3 TTPs 21 IoCs
Attempts to read the root path of hard drives other than the default C: drive.
description ioc Process File opened (read-only) \??\T: 10b21af4da8e704772b3a68bf4195f84.exe File opened (read-only) \??\E: 10b21af4da8e704772b3a68bf4195f84.exe File opened (read-only) \??\K: 10b21af4da8e704772b3a68bf4195f84.exe File opened (read-only) \??\R: 10b21af4da8e704772b3a68bf4195f84.exe File opened (read-only) \??\S: 10b21af4da8e704772b3a68bf4195f84.exe File opened (read-only) \??\U: 10b21af4da8e704772b3a68bf4195f84.exe File opened (read-only) \??\V: 10b21af4da8e704772b3a68bf4195f84.exe File opened (read-only) \??\I: 10b21af4da8e704772b3a68bf4195f84.exe File opened (read-only) \??\M: 10b21af4da8e704772b3a68bf4195f84.exe File opened (read-only) \??\P: 10b21af4da8e704772b3a68bf4195f84.exe File opened (read-only) \??\Q: 10b21af4da8e704772b3a68bf4195f84.exe File opened (read-only) \??\Z: 10b21af4da8e704772b3a68bf4195f84.exe File opened (read-only) \??\G: 10b21af4da8e704772b3a68bf4195f84.exe File opened (read-only) \??\N: 10b21af4da8e704772b3a68bf4195f84.exe File opened (read-only) \??\O: 10b21af4da8e704772b3a68bf4195f84.exe File opened (read-only) \??\W: 10b21af4da8e704772b3a68bf4195f84.exe File opened (read-only) \??\X: 10b21af4da8e704772b3a68bf4195f84.exe File opened (read-only) \??\Y: 10b21af4da8e704772b3a68bf4195f84.exe File opened (read-only) \??\H: 10b21af4da8e704772b3a68bf4195f84.exe File opened (read-only) \??\J: 10b21af4da8e704772b3a68bf4195f84.exe File opened (read-only) \??\L: 10b21af4da8e704772b3a68bf4195f84.exe -
Drops autorun.inf file 1 TTPs 2 IoCs
Malware can abuse Windows Autorun to spread further via attached volumes.
description ioc Process File created C:\AUTORUN.INF 10b21af4da8e704772b3a68bf4195f84.exe File opened for modification C:\AUTORUN.INF 10b21af4da8e704772b3a68bf4195f84.exe -
Drops file in System32 directory 12 IoCs
description ioc Process File created C:\Windows\SysWOW64\hxdef.exe 10b21af4da8e704772b3a68bf4195f84.exe File opened for modification C:\Windows\SysWOW64\hxdef.exe 10b21af4da8e704772b3a68bf4195f84.exe File created C:\Windows\SysWOW64\IEXPLORE.EXE 10b21af4da8e704772b3a68bf4195f84.exe File created C:\Windows\SysWOW64\msjdbc11.dll 10b21af4da8e704772b3a68bf4195f84.exe File opened for modification C:\Windows\SysWOW64\spollsv.exe NetMeeting.exe File created C:\Windows\SysWOW64\RAVMOND.exe 10b21af4da8e704772b3a68bf4195f84.exe File created C:\Windows\SysWOW64\kernel66.dll 10b21af4da8e704772b3a68bf4195f84.exe File opened for modification C:\Windows\SysWOW64\kernel66.dll 10b21af4da8e704772b3a68bf4195f84.exe File created C:\Windows\SysWOW64\ODBC16.dll 10b21af4da8e704772b3a68bf4195f84.exe File created C:\Windows\SysWOW64\MSSIGN30.DLL 10b21af4da8e704772b3a68bf4195f84.exe File created C:\Windows\SysWOW64\NetMeeting.exe 10b21af4da8e704772b3a68bf4195f84.exe File created C:\Windows\SysWOW64\spollsv.exe NetMeeting.exe -
Drops file in Windows directory 1 IoCs
description ioc Process File created C:\Windows\SYSTRA.EXE 10b21af4da8e704772b3a68bf4195f84.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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Program crash 1 IoCs
pid pid_target Process procid_target 1928 2508 WerFault.exe 67 -
Runs net.exe
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Suspicious behavior: EnumeratesProcesses 8 IoCs
pid Process 2508 10b21af4da8e704772b3a68bf4195f84.exe 2508 10b21af4da8e704772b3a68bf4195f84.exe 2508 10b21af4da8e704772b3a68bf4195f84.exe 2508 10b21af4da8e704772b3a68bf4195f84.exe 764 rundll32.exe 764 rundll32.exe 2508 10b21af4da8e704772b3a68bf4195f84.exe 2508 10b21af4da8e704772b3a68bf4195f84.exe -
Suspicious use of AdjustPrivilegeToken 1 IoCs
description pid Process Token: SeDebugPrivilege 764 rundll32.exe -
Suspicious use of SetWindowsHookEx 2 IoCs
pid Process 4112 NetMeeting.exe 4112 NetMeeting.exe -
Suspicious use of WriteProcessMemory 29 IoCs
description pid Process procid_target PID 2508 wrote to memory of 3344 2508 10b21af4da8e704772b3a68bf4195f84.exe 89 PID 2508 wrote to memory of 3344 2508 10b21af4da8e704772b3a68bf4195f84.exe 89 PID 2508 wrote to memory of 3344 2508 10b21af4da8e704772b3a68bf4195f84.exe 89 PID 3344 wrote to memory of 4444 3344 net.exe 91 PID 3344 wrote to memory of 4444 3344 net.exe 91 PID 3344 wrote to memory of 4444 3344 net.exe 91 PID 2508 wrote to memory of 4316 2508 10b21af4da8e704772b3a68bf4195f84.exe 92 PID 2508 wrote to memory of 4316 2508 10b21af4da8e704772b3a68bf4195f84.exe 92 PID 2508 wrote to memory of 4316 2508 10b21af4da8e704772b3a68bf4195f84.exe 92 PID 4316 wrote to memory of 5084 4316 net.exe 95 PID 4316 wrote to memory of 5084 4316 net.exe 95 PID 4316 wrote to memory of 5084 4316 net.exe 95 PID 2508 wrote to memory of 712 2508 10b21af4da8e704772b3a68bf4195f84.exe 96 PID 2508 wrote to memory of 712 2508 10b21af4da8e704772b3a68bf4195f84.exe 96 PID 2508 wrote to memory of 712 2508 10b21af4da8e704772b3a68bf4195f84.exe 96 PID 712 wrote to memory of 2752 712 net.exe 98 PID 712 wrote to memory of 2752 712 net.exe 98 PID 712 wrote to memory of 2752 712 net.exe 98 PID 2508 wrote to memory of 4112 2508 10b21af4da8e704772b3a68bf4195f84.exe 104 PID 2508 wrote to memory of 4112 2508 10b21af4da8e704772b3a68bf4195f84.exe 104 PID 2508 wrote to memory of 4112 2508 10b21af4da8e704772b3a68bf4195f84.exe 104 PID 2508 wrote to memory of 916 2508 10b21af4da8e704772b3a68bf4195f84.exe 103 PID 2508 wrote to memory of 916 2508 10b21af4da8e704772b3a68bf4195f84.exe 103 PID 2508 wrote to memory of 916 2508 10b21af4da8e704772b3a68bf4195f84.exe 103 PID 2508 wrote to memory of 764 2508 10b21af4da8e704772b3a68bf4195f84.exe 101 PID 2508 wrote to memory of 764 2508 10b21af4da8e704772b3a68bf4195f84.exe 101 PID 2508 wrote to memory of 764 2508 10b21af4da8e704772b3a68bf4195f84.exe 101 PID 764 wrote to memory of 2508 764 rundll32.exe 67 PID 764 wrote to memory of 2508 764 rundll32.exe 67
Processes
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C:\Users\Admin\AppData\Local\Temp\10b21af4da8e704772b3a68bf4195f84.exe"C:\Users\Admin\AppData\Local\Temp\10b21af4da8e704772b3a68bf4195f84.exe"1⤵
- Checks computer location settings
- Loads dropped DLL
- Adds Run key to start application
- Enumerates connected drives
- Drops autorun.inf file
- Drops file in System32 directory
- Drops file in Windows directory
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:2508 -
C:\Windows\SysWOW64\net.exe"C:\Windows\System32\net.exe" stop "Symantec AntiVirus Client"2⤵
- Suspicious use of WriteProcessMemory
PID:3344 -
C:\Windows\SysWOW64\net1.exeC:\Windows\system32\net1 stop "Symantec AntiVirus Client"3⤵PID:4444
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C:\Windows\SysWOW64\net.exe"C:\Windows\System32\net.exe" stop "Symantec AntiVirus Server"2⤵
- Suspicious use of WriteProcessMemory
PID:4316 -
C:\Windows\SysWOW64\net1.exeC:\Windows\system32\net1 stop "Symantec AntiVirus Server"3⤵PID:5084
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C:\Windows\SysWOW64\net.exe"C:\Windows\System32\net.exe" stop "Rising Realtime Monitor Service"2⤵
- Suspicious use of WriteProcessMemory
PID:712 -
C:\Windows\SysWOW64\net1.exeC:\Windows\system32\net1 stop "Rising Realtime Monitor Service"3⤵PID:2752
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C:\Windows\SysWOW64\rundll32.exe"C:\Windows\System32\rundll32.exe" ODBC16.dll ondll_reg2⤵
- Loads dropped DLL
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:764
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C:\Windows\SysWOW64\rundll32.exe"C:\Windows\System32\rundll32.exe" ODBC16.dll ondll_install2⤵
- Loads dropped DLL
PID:916
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C:\Windows\SysWOW64\NetMeeting.exe"C:\Windows\System32\NetMeeting.exe"2⤵
- Executes dropped EXE
- Adds Run key to start application
- Drops file in System32 directory
- Suspicious use of SetWindowsHookEx
PID:4112
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 2508 -s 21282⤵
- Program crash
PID:1928
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 192 -p 2508 -ip 25081⤵PID:4056
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C:\Windows\system32\WerFault.exe"C:\Windows\system32\WerFault.exe" -k -lc NDIS NDIS-20231225-1522.dmp1⤵PID:2508
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
60KB
MD5068ab7aff165eaf4a6b5d1f5efc5779d
SHA173a804514776dfd459eeff5fe00a0d6fab0af268
SHA256c0c8e4b525a79261a08fe87507f0c0e3bbe4b8f5e78c9a8d4b26bba4077d2708
SHA5126053cd554427ebef13a7d405309b9ce3d675d81e389632e80b28bac7b0e1e7dc1913fee8dcfbc624ed091d62eeab51ad41d9124463548be9d32b8d33911b50ee
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Filesize
52KB
MD57d72bf5a3f74ddeb5a7a384a1f73be80
SHA12c7041e8b997996720772ed15ec5e978e3074795
SHA2561e69e7b29420d2fc935664a76ee7015c53d8155c8d624258c30d4ed17a2bebff
SHA5120652753b4fd5a1bad738b2299f00d0231c0a136c670278299e409624c6ed423ab66e0400814e20ffbbca87c75d60f1c893819c02cde372f99b584eba3d5c72d7
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Filesize
125KB
MD510b21af4da8e704772b3a68bf4195f84
SHA1df782b72c2e14f73fb7fdf3bcf6404b1285ee099
SHA256b962460234df921e94fb18cfdb308141b7d6a75304089a6aa02be100a0a083c3
SHA51285c571b19fadc731210469981abce226c2de02aeb5123cc5d31e50443cff6e498ae53ad1826346105f268a29b37a42d5e11eca33cbadee6d6194eb577f051b81