Analysis
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max time kernel
145s -
max time network
131s -
platform
windows10-2004_x64 -
resource
win10v2004-20230220-en -
resource tags
arch:x64arch:x86image:win10v2004-20230220-enlocale:en-usos:windows10-2004-x64system -
submitted
16-03-2023 16:16
Static task
static1
Behavioral task
behavioral1
Sample
4666c384a4c3443ac704b4fd1311a3c7.exe
Resource
win7-20230220-en
General
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Target
4666c384a4c3443ac704b4fd1311a3c7.exe
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Size
300KB
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MD5
4666c384a4c3443ac704b4fd1311a3c7
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SHA1
13cda634b73feab1db7e9f021837d3bf3be094eb
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SHA256
c30c055cfc659818b2b25a7fe19885a8737f6e513f421a21c1a5eaf72158b02c
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SHA512
87e9176ce3926244af2580aadd00d5420266cd026cfd38d0784e01c79d7cb945aa926ab09111ee7b33a38aa31f5ecb65fd74cb1590a86de7b91271fe2c4eb8ef
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SSDEEP
3072:lRx2ALdis854nZr2UCPMh6FddAztieF0MjNsvauCaoh8lDaNlf8:nxVL/A4ARddAyMja58
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-1-5-21-1675742406-747946869-1029867430-1000\Control Panel\International\Geo\Nation 4666c384a4c3443ac704b4fd1311a3c7.exe -
Executes dropped EXE 2 IoCs
pid Process 4892 EGCFHDAKEC.exe 4848 ntlhost.exe -
Loads dropped DLL 2 IoCs
pid Process 4524 4666c384a4c3443ac704b4fd1311a3c7.exe 4524 4666c384a4c3443ac704b4fd1311a3c7.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-1-5-21-1675742406-747946869-1029867430-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\NTSystem = "C:\\Users\\Admin\\AppData\\Roaming\\NTSystem\\ntlhost.exe" EGCFHDAKEC.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 2 IoCs
pid pid_target Process procid_target 4364 4524 WerFault.exe 82 4584 4892 WerFault.exe 90 -
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 4666c384a4c3443ac704b4fd1311a3c7.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString 4666c384a4c3443ac704b4fd1311a3c7.exe -
Delays execution with timeout.exe 1 IoCs
pid Process 3772 timeout.exe -
GoLang User-Agent 1 IoCs
Uses default user-agent string defined by GoLang HTTP packages.
description flow ioc HTTP User-Agent header 72 Go-http-client/1.1 -
Suspicious behavior: EnumeratesProcesses 2 IoCs
pid Process 4524 4666c384a4c3443ac704b4fd1311a3c7.exe 4524 4666c384a4c3443ac704b4fd1311a3c7.exe -
Suspicious use of WriteProcessMemory 15 IoCs
description pid Process procid_target PID 4524 wrote to memory of 1744 4524 4666c384a4c3443ac704b4fd1311a3c7.exe 83 PID 4524 wrote to memory of 1744 4524 4666c384a4c3443ac704b4fd1311a3c7.exe 83 PID 4524 wrote to memory of 1744 4524 4666c384a4c3443ac704b4fd1311a3c7.exe 83 PID 4524 wrote to memory of 220 4524 4666c384a4c3443ac704b4fd1311a3c7.exe 85 PID 4524 wrote to memory of 220 4524 4666c384a4c3443ac704b4fd1311a3c7.exe 85 PID 4524 wrote to memory of 220 4524 4666c384a4c3443ac704b4fd1311a3c7.exe 85 PID 220 wrote to memory of 3772 220 cmd.exe 88 PID 220 wrote to memory of 3772 220 cmd.exe 88 PID 220 wrote to memory of 3772 220 cmd.exe 88 PID 1744 wrote to memory of 4892 1744 cmd.exe 90 PID 1744 wrote to memory of 4892 1744 cmd.exe 90 PID 1744 wrote to memory of 4892 1744 cmd.exe 90 PID 4892 wrote to memory of 4848 4892 EGCFHDAKEC.exe 93 PID 4892 wrote to memory of 4848 4892 EGCFHDAKEC.exe 93 PID 4892 wrote to memory of 4848 4892 EGCFHDAKEC.exe 93
Processes
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C:\Users\Admin\AppData\Local\Temp\4666c384a4c3443ac704b4fd1311a3c7.exe"C:\Users\Admin\AppData\Local\Temp\4666c384a4c3443ac704b4fd1311a3c7.exe"1⤵
- Checks computer location settings
- Loads dropped DLL
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:4524 -
C:\Windows\SysWOW64\cmd.exe"C:\Windows\system32\cmd.exe" /c start "" "C:\Users\Admin\AppData\Local\Temp\EGCFHDAKEC.exe"2⤵
- Suspicious use of WriteProcessMemory
PID:1744 -
C:\Users\Admin\AppData\Local\Temp\EGCFHDAKEC.exe"C:\Users\Admin\AppData\Local\Temp\EGCFHDAKEC.exe"3⤵
- Executes dropped EXE
- Adds Run key to start application
- Suspicious use of WriteProcessMemory
PID:4892 -
C:\Users\Admin\AppData\Roaming\NTSystem\ntlhost.exeC:\Users\Admin\AppData\Roaming\NTSystem\ntlhost.exe4⤵
- Executes dropped EXE
PID:4848
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 4892 -s 4964⤵
- Program crash
PID:4584
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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\4666c384a4c3443ac704b4fd1311a3c7.exe" & del "C:\ProgramData\*.dll"" & exit2⤵
- Suspicious use of WriteProcessMemory
PID:220 -
C:\Windows\SysWOW64\timeout.exetimeout /t 53⤵
- Delays execution with timeout.exe
PID:3772
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 4524 -s 21122⤵
- Program crash
PID:4364
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 444 -p 4524 -ip 45241⤵PID:4968
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 420 -p 4892 -ip 48921⤵PID:3224
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
1.8MB
MD5d433fee70e60de32de4608f07bed7d2a
SHA18b84224c8319705317340392ad99bc529183a7db
SHA2560a93f3cfdedbd88dce010e4a2e54dc8c2a2135e58f037b55a513ed8b1dc49cb7
SHA512ec62acdea29ce1c56f09729c8e0832ffbd95755746305a35b0c361c92a03c88c8efb1c14eff35a9bdde26f965cd743408cacc08a5b2eb317a067fc876b9844d8
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Filesize
1.8MB
MD5d433fee70e60de32de4608f07bed7d2a
SHA18b84224c8319705317340392ad99bc529183a7db
SHA2560a93f3cfdedbd88dce010e4a2e54dc8c2a2135e58f037b55a513ed8b1dc49cb7
SHA512ec62acdea29ce1c56f09729c8e0832ffbd95755746305a35b0c361c92a03c88c8efb1c14eff35a9bdde26f965cd743408cacc08a5b2eb317a067fc876b9844d8
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Filesize
695.7MB
MD5ca0196fe52746ff492fea811aa781edc
SHA1f3734f5bbf660a598f77c6b544f51277bdae83fc
SHA256230e7a05e62e51812f7f1f4cccbb17a5eee803c64b9abda5b6691eb4a3987f81
SHA51286402315e69eb7eb8cc7c07b8ae64c7ff370be91b189bd93c8f2f9377b55098d0a2b7c8a8294cf82cc6a823f5143e9682647bc17196f43347c11ac9920171b95
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Filesize
722.3MB
MD5c9554642514f15e7bfdc1e0be9ef88ab
SHA1f700b06ea34bc2c2102510f282d5496581fe629a
SHA256225f2ea9cfa165ea74246cb6a16a4cc6b2f4097c516216b23b24e22cf6388041
SHA512d92bf1b9d4c806942559fff522c7f5b3231d394565fa2c610f64304a87a2d3201bffeff283b0ed565c895c58139bff69d9fd7750eee35e62febae2b221713842
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Filesize
599.0MB
MD5656355c297cb150a088d6ab74de7fd7b
SHA17710cde91e271a6a2f36b4be57c01d76417732ea
SHA2562fe61e80066a97c771b531d0869f52a25920690cc1331b35eb4a17ad01752253
SHA51280488fec85ac07c23fccd207f330e60d44621397f71d062cbf39ce67965730b712ac21d0f12acec0e4128b9e7275f5abd69334d530628e7259eb46b7a8c251dd