Analysis
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max time kernel
146s -
max time network
149s -
platform
windows10-2004_x64 -
resource
win10v2004-20230220-en -
resource tags
arch:x64arch:x86image:win10v2004-20230220-enlocale:en-usos:windows10-2004-x64system -
submitted
20-03-2023 12:00
Static task
static1
Behavioral task
behavioral1
Sample
setup.exe
Resource
win7-20230220-en
General
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Target
setup.exe
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Size
291KB
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MD5
79583ef72d557666796293419281c161
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SHA1
049a4de98d35bafa5a0ef00323826d4a02514223
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SHA256
4e92d369cc121131b68a5bc2839fca89752a8bfa39f1819bc576ed717f0a1441
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SHA512
c24a53a28ea8a3d3d4507531efb8f539b85dcfa2555d53d0a4a4a418c534b91cb8dd12e16662107634f1ac9aee8bc70e32d12d05cc958506d46ced49c7ebf19a
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SSDEEP
3072:QDbHfXpL7ZZak4EMA5n7LN+D7oY6LnEMV+zH5nVJtKQTwQzMzjFUW5nbrWJh:qXpL7ZckfH5hsj8lQzM3S4vYh
Malware Config
Extracted
laplas
http://45.87.154.105
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api_key
1c630872d348a77d04368d542fde4663bc2bcb96f1b909554db3472c08df2767
Signatures
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Downloads MZ/PE file
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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-1-5-21-1013461898-3711306144-4198452673-1000\Control Panel\International\Geo\Nation setup.exe -
Executes dropped EXE 2 IoCs
pid Process 4128 KKJKFBKKEC.exe 4916 ntlhost.exe -
Loads dropped DLL 2 IoCs
pid Process 3892 setup.exe 3892 setup.exe -
Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
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Accesses cryptocurrency files/wallets, possible credential harvesting 2 TTPs
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Adds Run key to start application 2 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-1013461898-3711306144-4198452673-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\NTSystem = "C:\\Users\\Admin\\AppData\\Roaming\\NTSystem\\ntlhost.exe" KKJKFBKKEC.exe -
Checks installed software on the system 1 TTPs
Looks up Uninstall key entries in the registry to enumerate software on the system.
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Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
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Program crash 1 IoCs
pid pid_target Process procid_target 1480 3892 WerFault.exe 80 -
Checks processor information in registry 2 TTPs 2 IoCs
Processor information is often read in order to detect sandboxing environments.
description ioc Process Key opened \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0 setup.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString setup.exe -
Delays execution with timeout.exe 1 IoCs
pid Process 2336 timeout.exe -
GoLang User-Agent 1 IoCs
Uses default user-agent string defined by GoLang HTTP packages.
description flow ioc HTTP User-Agent header 56 Go-http-client/1.1 -
Suspicious behavior: EnumeratesProcesses 2 IoCs
pid Process 3892 setup.exe 3892 setup.exe -
Suspicious use of WriteProcessMemory 15 IoCs
description pid Process procid_target PID 3892 wrote to memory of 1500 3892 setup.exe 83 PID 3892 wrote to memory of 1500 3892 setup.exe 83 PID 3892 wrote to memory of 1500 3892 setup.exe 83 PID 3892 wrote to memory of 1720 3892 setup.exe 85 PID 3892 wrote to memory of 1720 3892 setup.exe 85 PID 3892 wrote to memory of 1720 3892 setup.exe 85 PID 1720 wrote to memory of 2336 1720 cmd.exe 89 PID 1720 wrote to memory of 2336 1720 cmd.exe 89 PID 1720 wrote to memory of 2336 1720 cmd.exe 89 PID 1500 wrote to memory of 4128 1500 cmd.exe 90 PID 1500 wrote to memory of 4128 1500 cmd.exe 90 PID 1500 wrote to memory of 4128 1500 cmd.exe 90 PID 4128 wrote to memory of 4916 4128 KKJKFBKKEC.exe 96 PID 4128 wrote to memory of 4916 4128 KKJKFBKKEC.exe 96 PID 4128 wrote to memory of 4916 4128 KKJKFBKKEC.exe 96
Processes
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C:\Users\Admin\AppData\Local\Temp\setup.exe"C:\Users\Admin\AppData\Local\Temp\setup.exe"1⤵
- Checks computer location settings
- Loads dropped DLL
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:3892 -
C:\Windows\SysWOW64\cmd.exe"C:\Windows\system32\cmd.exe" /c start "" "C:\Users\Admin\AppData\Local\Temp\KKJKFBKKEC.exe"2⤵
- Suspicious use of WriteProcessMemory
PID:1500 -
C:\Users\Admin\AppData\Local\Temp\KKJKFBKKEC.exe"C:\Users\Admin\AppData\Local\Temp\KKJKFBKKEC.exe"3⤵
- Executes dropped EXE
- Adds Run key to start application
- Suspicious use of WriteProcessMemory
PID:4128 -
C:\Users\Admin\AppData\Roaming\NTSystem\ntlhost.exeC:\Users\Admin\AppData\Roaming\NTSystem\ntlhost.exe4⤵
- Executes dropped EXE
PID:4916
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C:\Windows\SysWOW64\cmd.exe"C:\Windows\system32\cmd.exe" /c timeout /t 5 & del /f /q "C:\Users\Admin\AppData\Local\Temp\setup.exe" & del "C:\ProgramData\*.dll"" & exit2⤵
- Suspicious use of WriteProcessMemory
PID:1720 -
C:\Windows\SysWOW64\timeout.exetimeout /t 53⤵
- Delays execution with timeout.exe
PID:2336
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 3892 -s 23242⤵
- Program crash
PID:1480
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 456 -p 3892 -ip 38921⤵PID:1320
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
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Filesize
593KB
MD5c8fd9be83bc728cc04beffafc2907fe9
SHA195ab9f701e0024cedfbd312bcfe4e726744c4f2e
SHA256ba06a6ee0b15f5be5c4e67782eec8b521e36c107a329093ec400fe0404eb196a
SHA512fbb446f4a27ef510e616caad52945d6c9cc1fd063812c41947e579ec2b54df57c6dc46237ded80fca5847f38cbe1747a6c66a13e2c8c19c664a72be35eb8b040
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Filesize
593KB
MD5c8fd9be83bc728cc04beffafc2907fe9
SHA195ab9f701e0024cedfbd312bcfe4e726744c4f2e
SHA256ba06a6ee0b15f5be5c4e67782eec8b521e36c107a329093ec400fe0404eb196a
SHA512fbb446f4a27ef510e616caad52945d6c9cc1fd063812c41947e579ec2b54df57c6dc46237ded80fca5847f38cbe1747a6c66a13e2c8c19c664a72be35eb8b040
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Filesize
2.0MB
MD51cc453cdf74f31e4d913ff9c10acdde2
SHA16e85eae544d6e965f15fa5c39700fa7202f3aafe
SHA256ac5c92fe6c51cfa742e475215b83b3e11a4379820043263bf50d4068686c6fa5
SHA512dd9ff4e06b00dc831439bab11c10e9b2ae864ea6e780d3835ea7468818f35439f352ef137da111efcdf2bb6465f6ca486719451bf6cf32c6a4420a56b1d64571
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Filesize
1.9MB
MD5aa3321fbcbc033da9e097aacf740fdc5
SHA1e9ecea40f56118e22d2d2bd53588d53804b2e91f
SHA2564ca3dbb5395f00dd3e6a76add2069626e3db6222be3b8bba9a29444c5960f47f
SHA512f8459386d1ec1151b1217587111a14584e2cf3086f2895e9c6ec67a3d50df93d20213e482999895ff9d0f58b3b9311254457a21fd15e14995cba5726758a7caa
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Filesize
1.9MB
MD5aa3321fbcbc033da9e097aacf740fdc5
SHA1e9ecea40f56118e22d2d2bd53588d53804b2e91f
SHA2564ca3dbb5395f00dd3e6a76add2069626e3db6222be3b8bba9a29444c5960f47f
SHA512f8459386d1ec1151b1217587111a14584e2cf3086f2895e9c6ec67a3d50df93d20213e482999895ff9d0f58b3b9311254457a21fd15e14995cba5726758a7caa
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Filesize
541.9MB
MD5999d7c0f5262f8616221ea9d746b0f5b
SHA108b73da06aeb2ebc544b5320b3121897c1ddf669
SHA25654e5b7d8335f55fc08a52306ac6c41074809c52b0060d7501f091ad550f8bd84
SHA5129c114d223ac00bbf90dc5147462e80d588b0049abaabfcec022375c02c40b2a29af9c324d0e6e8ad383f0bea81e3363ee748ff71a9962483e6af3306c17bbd7c
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Filesize
566.2MB
MD5c21dadafe1ba95936412e6cdc778f351
SHA1a6ebadb5c6f7d42581d0739cdd844670ebb6e532
SHA2566f74e4feff35199516791d933bccb36d37e0d3337ddf01b64d2f400a610ec2be
SHA512c1305019957bb6927604ee98d9d21d750493510798d6e8a51432a480d16df0c412a133937a14545f971fd65e767bea9fe7479b3923fd32d9ec2ab026f89e0b63
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Filesize
435.6MB
MD5d5999c6a3a8d4b3d9f0731d228bab2f8
SHA1d1647ebd6eb4de621e716f71084f13fc910495ea
SHA2563b75a8bbbbd31c04b4c08155a5c3e921e186e2adc8bfeff49d91117225b74bbc
SHA512a9f94c522804155cf9c0e6e980bcd837b3a1c07c7ced2f9ae38aa51ee68028dcfbe94ad09a32d9974c8672401bbf3ef1ea988bda7734f0157b758aebdce1c308