Analysis
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max time kernel
145s -
max time network
152s -
platform
windows10-2004_x64 -
resource
win10v2004-20220812-en -
resource tags
arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system -
submitted
23-11-2022 14:47
Behavioral task
behavioral1
Sample
233af642b3e22613551e087a7cefcf2a530752da6613efc52da7cb957cb8f0f3.dll
Resource
win7-20220901-en
Behavioral task
behavioral2
Sample
233af642b3e22613551e087a7cefcf2a530752da6613efc52da7cb957cb8f0f3.dll
Resource
win10v2004-20220812-en
General
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Target
233af642b3e22613551e087a7cefcf2a530752da6613efc52da7cb957cb8f0f3.dll
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Size
63KB
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MD5
ab07a13a5f27d85daa3f4636b41c4622
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SHA1
d6a919d524356f3ddbf6d8b209bc65cbddf2294d
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SHA256
233af642b3e22613551e087a7cefcf2a530752da6613efc52da7cb957cb8f0f3
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SHA512
e8459c5988bac2633c7d052f961fc3dc4c1eae64dd2686e74d909ee1a0f338460117031278c886a8e22fd82086be9451fb73e141f54dbd40bd4818814704ec66
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SSDEEP
1536:jeYzhn0K1uAiuYUaZabt5Qv7fU1WTD+TUT+1A:KYzhnHcAimEyfSfWkU1
Malware Config
Signatures
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Executes dropped EXE 1 IoCs
Processes:
imejpmig.exepid process 2404 imejpmig.exe -
Processes:
resource yara_rule behavioral2/memory/4840-133-0x0000000010000000-0x000000001002D000-memory.dmp upx -
Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
Processes:
rundll32.exedescription ioc process Key value queried \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\Control Panel\International\Geo\Nation rundll32.exe -
Loads dropped DLL 1 IoCs
Processes:
imejpmig.exepid process 2404 imejpmig.exe -
Adds Run key to start application 2 TTPs 1 IoCs
Processes:
imejpmig.exedescription ioc process Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\imejp = "C:\\Users\\Admin\\AppData\\Roaming\\Microsoft\\IMJP8_1\\imejpmig.exe" imejpmig.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
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Gathers network information 2 TTPs 2 IoCs
Uses commandline utility to view network configuration.
Processes:
ipconfig.exeipconfig.exepid process 3504 ipconfig.exe 4972 ipconfig.exe -
Gathers system information 1 TTPs 2 IoCs
Runs systeminfo.exe.
Processes:
systeminfo.exesysteminfo.exepid process 4216 systeminfo.exe 3648 systeminfo.exe -
Runs net.exe
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Suspicious use of WriteProcessMemory 54 IoCs
Processes:
rundll32.exerundll32.exeimejpmig.execmd.execmd.exenet.execmd.execmd.execmd.exenet.execmd.exedescription pid process target process PID 1968 wrote to memory of 4840 1968 rundll32.exe rundll32.exe PID 1968 wrote to memory of 4840 1968 rundll32.exe rundll32.exe PID 1968 wrote to memory of 4840 1968 rundll32.exe rundll32.exe PID 4840 wrote to memory of 2404 4840 rundll32.exe imejpmig.exe PID 4840 wrote to memory of 2404 4840 rundll32.exe imejpmig.exe PID 4840 wrote to memory of 2404 4840 rundll32.exe imejpmig.exe PID 2404 wrote to memory of 4612 2404 imejpmig.exe cmd.exe PID 2404 wrote to memory of 4612 2404 imejpmig.exe cmd.exe PID 2404 wrote to memory of 4612 2404 imejpmig.exe cmd.exe PID 4612 wrote to memory of 3504 4612 cmd.exe ipconfig.exe PID 4612 wrote to memory of 3504 4612 cmd.exe ipconfig.exe PID 4612 wrote to memory of 3504 4612 cmd.exe ipconfig.exe PID 2404 wrote to memory of 4236 2404 imejpmig.exe cmd.exe PID 2404 wrote to memory of 4236 2404 imejpmig.exe cmd.exe PID 2404 wrote to memory of 4236 2404 imejpmig.exe cmd.exe PID 4236 wrote to memory of 4760 4236 cmd.exe net.exe PID 4236 wrote to memory of 4760 4236 cmd.exe net.exe PID 4236 wrote to memory of 4760 4236 cmd.exe net.exe PID 4760 wrote to memory of 4320 4760 net.exe net1.exe PID 4760 wrote to memory of 4320 4760 net.exe net1.exe PID 4760 wrote to memory of 4320 4760 net.exe net1.exe PID 2404 wrote to memory of 1528 2404 imejpmig.exe cmd.exe PID 2404 wrote to memory of 1528 2404 imejpmig.exe cmd.exe PID 2404 wrote to memory of 1528 2404 imejpmig.exe cmd.exe PID 2404 wrote to memory of 4484 2404 imejpmig.exe cmd.exe PID 2404 wrote to memory of 4484 2404 imejpmig.exe cmd.exe PID 2404 wrote to memory of 4484 2404 imejpmig.exe cmd.exe PID 4484 wrote to memory of 4216 4484 cmd.exe systeminfo.exe PID 4484 wrote to memory of 4216 4484 cmd.exe systeminfo.exe PID 4484 wrote to memory of 4216 4484 cmd.exe systeminfo.exe PID 2404 wrote to memory of 4596 2404 imejpmig.exe cmd.exe PID 2404 wrote to memory of 4596 2404 imejpmig.exe cmd.exe PID 2404 wrote to memory of 4596 2404 imejpmig.exe cmd.exe PID 4596 wrote to memory of 4972 4596 cmd.exe ipconfig.exe PID 4596 wrote to memory of 4972 4596 cmd.exe ipconfig.exe PID 4596 wrote to memory of 4972 4596 cmd.exe ipconfig.exe PID 2404 wrote to memory of 1900 2404 imejpmig.exe cmd.exe PID 2404 wrote to memory of 1900 2404 imejpmig.exe cmd.exe PID 2404 wrote to memory of 1900 2404 imejpmig.exe cmd.exe PID 1900 wrote to memory of 5032 1900 cmd.exe net.exe PID 1900 wrote to memory of 5032 1900 cmd.exe net.exe PID 1900 wrote to memory of 5032 1900 cmd.exe net.exe PID 5032 wrote to memory of 3356 5032 net.exe net1.exe PID 5032 wrote to memory of 3356 5032 net.exe net1.exe PID 5032 wrote to memory of 3356 5032 net.exe net1.exe PID 2404 wrote to memory of 5112 2404 imejpmig.exe cmd.exe PID 2404 wrote to memory of 5112 2404 imejpmig.exe cmd.exe PID 2404 wrote to memory of 5112 2404 imejpmig.exe cmd.exe PID 2404 wrote to memory of 1248 2404 imejpmig.exe cmd.exe PID 2404 wrote to memory of 1248 2404 imejpmig.exe cmd.exe PID 2404 wrote to memory of 1248 2404 imejpmig.exe cmd.exe PID 1248 wrote to memory of 3648 1248 cmd.exe systeminfo.exe PID 1248 wrote to memory of 3648 1248 cmd.exe systeminfo.exe PID 1248 wrote to memory of 3648 1248 cmd.exe systeminfo.exe
Processes
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C:\Windows\system32\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\233af642b3e22613551e087a7cefcf2a530752da6613efc52da7cb957cb8f0f3.dll,#11⤵
- Suspicious use of WriteProcessMemory
PID:1968 -
C:\Windows\SysWOW64\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\233af642b3e22613551e087a7cefcf2a530752da6613efc52da7cb957cb8f0f3.dll,#12⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:4840 -
C:\Users\Admin\AppData\Roaming\Microsoft\IMJP8_1\imejpmig.exe"C:\Users\Admin\AppData\Roaming\Microsoft\IMJP8_1\imejpmig.exe"3⤵
- Executes dropped EXE
- Loads dropped DLL
- Adds Run key to start application
- Suspicious use of WriteProcessMemory
PID:2404 -
C:\Windows\SysWOW64\cmd.exeC:\Windows\system32\cmd.exe /c IpConFig /All4⤵
- Suspicious use of WriteProcessMemory
PID:4612 -
C:\Windows\SysWOW64\ipconfig.exeIpConFig /All5⤵
- Gathers network information
PID:3504 -
C:\Windows\SysWOW64\cmd.exeC:\Windows\system32\cmd.exe /c Net STarT4⤵
- Suspicious use of WriteProcessMemory
PID:4236 -
C:\Windows\SysWOW64\net.exeNet STarT5⤵
- Suspicious use of WriteProcessMemory
PID:4760 -
C:\Windows\SysWOW64\net1.exeC:\Windows\system32\net1 STarT6⤵PID:4320
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C:\Windows\SysWOW64\cmd.exeC:\Windows\system32\cmd.exe /c Dir C:\ProGra~1\4⤵PID:1528
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C:\Windows\SysWOW64\cmd.exeC:\Windows\system32\cmd.exe /c sYsTEmINFo4⤵
- Suspicious use of WriteProcessMemory
PID:4484 -
C:\Windows\SysWOW64\systeminfo.exesYsTEmINFo5⤵
- Gathers system information
PID:4216 -
C:\Windows\SysWOW64\cmd.exeC:\Windows\system32\cmd.exe /c IpConFig /All4⤵
- Suspicious use of WriteProcessMemory
PID:4596 -
C:\Windows\SysWOW64\ipconfig.exeIpConFig /All5⤵
- Gathers network information
PID:4972 -
C:\Windows\SysWOW64\cmd.exeC:\Windows\system32\cmd.exe /c Net STarT4⤵
- Suspicious use of WriteProcessMemory
PID:1900 -
C:\Windows\SysWOW64\net.exeNet STarT5⤵
- Suspicious use of WriteProcessMemory
PID:5032 -
C:\Windows\SysWOW64\net1.exeC:\Windows\system32\net1 STarT6⤵PID:3356
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C:\Windows\SysWOW64\cmd.exeC:\Windows\system32\cmd.exe /c Dir C:\ProGra~1\4⤵PID:5112
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C:\Windows\SysWOW64\cmd.exeC:\Windows\system32\cmd.exe /c sYsTEmINFo4⤵
- Suspicious use of WriteProcessMemory
PID:1248 -
C:\Windows\SysWOW64\systeminfo.exesYsTEmINFo5⤵
- Gathers system information
PID:3648
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
-
Filesize
78KB
MD59aed87892caa891097ccfe6b77a25639
SHA1506e9b55918b931ac6950b607dd30ec71a969daa
SHA256840d18698ff0b114ee587f57231001d046fbd1eb22603e0f951cbb8c290804ed
SHA512cf0f8bf27b896c3ca007ec010f064e5a3fa5bc789511adb24ac58b8262684acdb9fca8d0db83c1e9bca6c2c0cc8b75c0c29ae7aef7c12b3bab1938ed4682cc13
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Filesize
78KB
MD59aed87892caa891097ccfe6b77a25639
SHA1506e9b55918b931ac6950b607dd30ec71a969daa
SHA256840d18698ff0b114ee587f57231001d046fbd1eb22603e0f951cbb8c290804ed
SHA512cf0f8bf27b896c3ca007ec010f064e5a3fa5bc789511adb24ac58b8262684acdb9fca8d0db83c1e9bca6c2c0cc8b75c0c29ae7aef7c12b3bab1938ed4682cc13
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Filesize
41KB
MD52df1878ca93c40188ea6e9e56da921eb
SHA196ea489a56803d29aa73fa05bad0b14734aff6bd
SHA2569d6f7a444c6700fbf9526445a35c07d509b58afa7430abf690ebfd09d9138525
SHA51214b3eb4503901b0097fc16e5a45183e6c4afae24e4c0aa82fb7d2b71406ef0163f0a19485aecc980e5676a3156d9b68afb98893bd9570199cffde31c66de635e
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Filesize
41KB
MD52df1878ca93c40188ea6e9e56da921eb
SHA196ea489a56803d29aa73fa05bad0b14734aff6bd
SHA2569d6f7a444c6700fbf9526445a35c07d509b58afa7430abf690ebfd09d9138525
SHA51214b3eb4503901b0097fc16e5a45183e6c4afae24e4c0aa82fb7d2b71406ef0163f0a19485aecc980e5676a3156d9b68afb98893bd9570199cffde31c66de635e