Analysis
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max time kernel
142s -
max time network
50s -
platform
windows7_x64 -
resource
win7-20220901-en -
resource tags
arch:x64arch:x86image:win7-20220901-enlocale:en-usos:windows7-x64system -
submitted
26-11-2022 08:59
Static task
static1
Behavioral task
behavioral1
Sample
2e6ec0ac0d833f6ea1eeeafa68936894b115af036dfa4c49d277866801c8ea58.exe
Resource
win7-20220901-en
Behavioral task
behavioral2
Sample
2e6ec0ac0d833f6ea1eeeafa68936894b115af036dfa4c49d277866801c8ea58.exe
Resource
win10v2004-20220812-en
General
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Target
2e6ec0ac0d833f6ea1eeeafa68936894b115af036dfa4c49d277866801c8ea58.exe
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Size
45KB
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MD5
33d9e9a072b109981e0fddf5794bda50
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SHA1
58b547aa439f477708298614ebd2bf54f4a8f826
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SHA256
2e6ec0ac0d833f6ea1eeeafa68936894b115af036dfa4c49d277866801c8ea58
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SHA512
7511a8aeddc27cfe28251230acccd197b8a8ef69b1e2a2ecb8618071f03e5c3cbfd990ecb6ec0c3d51f46aec055274246f3a874a8a2873e047696830e4b9dbda
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SSDEEP
768:0LR8ttHmjjQaIgWFnaz+kIumMp/QjsLscl2WfZ/1H52:mKt4hItkbYjsLsCBb8
Malware Config
Signatures
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Adds autorun key to be loaded by Explorer.exe on startup 2 TTPs 2 IoCs
Processes:
2e6ec0ac0d833f6ea1eeeafa68936894b115af036dfa4c49d277866801c8ea58.exedescription ioc process Key created \REGISTRY\MACHINE\Software\Wow6432Node\Microsoft\Windows\CurrentVersion\ShellServiceObjectDelayLoad 2e6ec0ac0d833f6ea1eeeafa68936894b115af036dfa4c49d277866801c8ea58.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\ShellServiceObjectDelayLoad\Web Event Logger = "{79FEACFF-FFCE-815E-A900-316290B5B738}" 2e6ec0ac0d833f6ea1eeeafa68936894b115af036dfa4c49d277866801c8ea58.exe -
Executes dropped EXE 1 IoCs
Processes:
Opjnck32.exepid process 1696 Opjnck32.exe -
Loads dropped DLL 2 IoCs
Processes:
2e6ec0ac0d833f6ea1eeeafa68936894b115af036dfa4c49d277866801c8ea58.exepid process 1352 2e6ec0ac0d833f6ea1eeeafa68936894b115af036dfa4c49d277866801c8ea58.exe 1352 2e6ec0ac0d833f6ea1eeeafa68936894b115af036dfa4c49d277866801c8ea58.exe -
Drops file in System32 directory 3 IoCs
Processes:
2e6ec0ac0d833f6ea1eeeafa68936894b115af036dfa4c49d277866801c8ea58.exedescription ioc process File created C:\Windows\SysWOW64\Opjnck32.exe 2e6ec0ac0d833f6ea1eeeafa68936894b115af036dfa4c49d277866801c8ea58.exe File opened for modification C:\Windows\SysWOW64\Opjnck32.exe 2e6ec0ac0d833f6ea1eeeafa68936894b115af036dfa4c49d277866801c8ea58.exe File created C:\Windows\SysWOW64\Kbnpceph.dll 2e6ec0ac0d833f6ea1eeeafa68936894b115af036dfa4c49d277866801c8ea58.exe -
Modifies data under HKEY_USERS 2 IoCs
Processes:
Opjnck32.exedescription ioc process Key created \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\BrowseNewProcess Opjnck32.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Explorer\BrowseNewProcess\BrowseNewProcess = "yes" Opjnck32.exe -
Modifies registry class 6 IoCs
Processes:
2e6ec0ac0d833f6ea1eeeafa68936894b115af036dfa4c49d277866801c8ea58.exedescription ioc process Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{79FEACFF-FFCE-815E-A900-316290B5B738}\InProcServer32 2e6ec0ac0d833f6ea1eeeafa68936894b115af036dfa4c49d277866801c8ea58.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node 2e6ec0ac0d833f6ea1eeeafa68936894b115af036dfa4c49d277866801c8ea58.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID 2e6ec0ac0d833f6ea1eeeafa68936894b115af036dfa4c49d277866801c8ea58.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{79FEACFF-FFCE-815E-A900-316290B5B738} 2e6ec0ac0d833f6ea1eeeafa68936894b115af036dfa4c49d277866801c8ea58.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{79FEACFF-FFCE-815E-A900-316290B5B738}\InProcServer32\ = "C:\\Windows\\SysWow64\\Kbnpceph.dll" 2e6ec0ac0d833f6ea1eeeafa68936894b115af036dfa4c49d277866801c8ea58.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{79FEACFF-FFCE-815E-A900-316290B5B738}\InProcServer32\ThreadingModel = "Apartment" 2e6ec0ac0d833f6ea1eeeafa68936894b115af036dfa4c49d277866801c8ea58.exe -
Suspicious behavior: GetForegroundWindowSpam 1 IoCs
Processes:
Opjnck32.exepid process 1696 Opjnck32.exe -
Suspicious use of WriteProcessMemory 4 IoCs
Processes:
2e6ec0ac0d833f6ea1eeeafa68936894b115af036dfa4c49d277866801c8ea58.exedescription pid process target process PID 1352 wrote to memory of 1696 1352 2e6ec0ac0d833f6ea1eeeafa68936894b115af036dfa4c49d277866801c8ea58.exe Opjnck32.exe PID 1352 wrote to memory of 1696 1352 2e6ec0ac0d833f6ea1eeeafa68936894b115af036dfa4c49d277866801c8ea58.exe Opjnck32.exe PID 1352 wrote to memory of 1696 1352 2e6ec0ac0d833f6ea1eeeafa68936894b115af036dfa4c49d277866801c8ea58.exe Opjnck32.exe PID 1352 wrote to memory of 1696 1352 2e6ec0ac0d833f6ea1eeeafa68936894b115af036dfa4c49d277866801c8ea58.exe Opjnck32.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\2e6ec0ac0d833f6ea1eeeafa68936894b115af036dfa4c49d277866801c8ea58.exe"C:\Users\Admin\AppData\Local\Temp\2e6ec0ac0d833f6ea1eeeafa68936894b115af036dfa4c49d277866801c8ea58.exe"1⤵
- Adds autorun key to be loaded by Explorer.exe on startup
- Loads dropped DLL
- Drops file in System32 directory
- Modifies registry class
- Suspicious use of WriteProcessMemory
PID:1352 -
C:\Windows\SysWOW64\Opjnck32.exeC:\Windows\system32\Opjnck32.exe2⤵
- Executes dropped EXE
- Modifies data under HKEY_USERS
- Suspicious behavior: GetForegroundWindowSpam
PID:1696
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Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
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Filesize
45KB
MD58b854683b4aaa6d244b75f0dc5cd3aaf
SHA19a65376f8510155e0de4ae5328af06f5b53e8380
SHA2566a812c74a74f2c075eb9365bc799fed35a233c40966089bdc21deb87c9f2a5c8
SHA5126bf6eba129abd5dc66c0dbb1bb74097fe82d9eade70b24e996a9a285daccfc15b31b2d028dc781fe9cd4eb07fffb90ce3e716f30ee942f1b58198dc15e24157f
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Filesize
45KB
MD58b854683b4aaa6d244b75f0dc5cd3aaf
SHA19a65376f8510155e0de4ae5328af06f5b53e8380
SHA2566a812c74a74f2c075eb9365bc799fed35a233c40966089bdc21deb87c9f2a5c8
SHA5126bf6eba129abd5dc66c0dbb1bb74097fe82d9eade70b24e996a9a285daccfc15b31b2d028dc781fe9cd4eb07fffb90ce3e716f30ee942f1b58198dc15e24157f
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Filesize
45KB
MD58b854683b4aaa6d244b75f0dc5cd3aaf
SHA19a65376f8510155e0de4ae5328af06f5b53e8380
SHA2566a812c74a74f2c075eb9365bc799fed35a233c40966089bdc21deb87c9f2a5c8
SHA5126bf6eba129abd5dc66c0dbb1bb74097fe82d9eade70b24e996a9a285daccfc15b31b2d028dc781fe9cd4eb07fffb90ce3e716f30ee942f1b58198dc15e24157f