Analysis
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max time kernel
83s -
max time network
95s -
platform
windows10-2004_x64 -
resource
win10v2004-20230220-en -
resource tags
arch:x64arch:x86image:win10v2004-20230220-enlocale:en-usos:windows10-2004-x64system -
submitted
19-03-2023 13:21
Static task
static1
Behavioral task
behavioral1
Sample
tmp.exe
Resource
win7-20230220-en
General
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Target
tmp.exe
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Size
290KB
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MD5
e681980e0fe13cc6b03d145f993f6d57
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SHA1
55c90ca0e3558e3227980cc1c083e14694c7b3f7
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SHA256
6eca42031f2809aca73b3cc3296cde7d49852f2ed14985c3093c10244d22376d
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SHA512
c2d6bef9ce2782ce7cd2f657773ac69ccb8bf5ea32cfd2cc7bdaa42df1334d784bef52286025294ea6220a41c8de51e6a938110ae573f14ec761d09a36578917
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SSDEEP
6144:gNnHLcUZsHVqxCpKbz+44XfQvW5xRPvPhO:gNnHAUSwJb64A5HHPh
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-1-5-21-2275444769-3691835758-4097679484-1000\Control Panel\International\Geo\Nation tmp.exe -
Executes dropped EXE 2 IoCs
pid Process 3172 CBAFCAKEHD.exe 2552 ntlhost.exe -
Loads dropped DLL 2 IoCs
pid Process 4368 tmp.exe 4368 tmp.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-1-5-21-2275444769-3691835758-4097679484-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\NTSystem = "C:\\Users\\Admin\\AppData\\Roaming\\NTSystem\\ntlhost.exe" CBAFCAKEHD.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 1620 4368 WerFault.exe 85 -
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 tmp.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString tmp.exe -
Delays execution with timeout.exe 1 IoCs
pid Process 1068 timeout.exe -
GoLang User-Agent 1 IoCs
Uses default user-agent string defined by GoLang HTTP packages.
description flow ioc HTTP User-Agent header 47 Go-http-client/1.1 -
Suspicious behavior: EnumeratesProcesses 2 IoCs
pid Process 4368 tmp.exe 4368 tmp.exe -
Suspicious use of WriteProcessMemory 15 IoCs
description pid Process procid_target PID 4368 wrote to memory of 3616 4368 tmp.exe 89 PID 4368 wrote to memory of 3616 4368 tmp.exe 89 PID 4368 wrote to memory of 3616 4368 tmp.exe 89 PID 4368 wrote to memory of 564 4368 tmp.exe 91 PID 4368 wrote to memory of 564 4368 tmp.exe 91 PID 4368 wrote to memory of 564 4368 tmp.exe 91 PID 564 wrote to memory of 1068 564 cmd.exe 94 PID 564 wrote to memory of 1068 564 cmd.exe 94 PID 564 wrote to memory of 1068 564 cmd.exe 94 PID 3616 wrote to memory of 3172 3616 cmd.exe 95 PID 3616 wrote to memory of 3172 3616 cmd.exe 95 PID 3616 wrote to memory of 3172 3616 cmd.exe 95 PID 3172 wrote to memory of 2552 3172 CBAFCAKEHD.exe 100 PID 3172 wrote to memory of 2552 3172 CBAFCAKEHD.exe 100 PID 3172 wrote to memory of 2552 3172 CBAFCAKEHD.exe 100
Processes
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C:\Users\Admin\AppData\Local\Temp\tmp.exe"C:\Users\Admin\AppData\Local\Temp\tmp.exe"1⤵
- Checks computer location settings
- Loads dropped DLL
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:4368 -
C:\Windows\SysWOW64\cmd.exe"C:\Windows\system32\cmd.exe" /c start "" "C:\Users\Admin\AppData\Local\Temp\CBAFCAKEHD.exe"2⤵
- Suspicious use of WriteProcessMemory
PID:3616 -
C:\Users\Admin\AppData\Local\Temp\CBAFCAKEHD.exe"C:\Users\Admin\AppData\Local\Temp\CBAFCAKEHD.exe"3⤵
- Executes dropped EXE
- Adds Run key to start application
- Suspicious use of WriteProcessMemory
PID:3172 -
C:\Users\Admin\AppData\Roaming\NTSystem\ntlhost.exeC:\Users\Admin\AppData\Roaming\NTSystem\ntlhost.exe4⤵
- Executes dropped EXE
PID:2552
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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\tmp.exe" & del "C:\ProgramData\*.dll"" & exit2⤵
- Suspicious use of WriteProcessMemory
PID:564 -
C:\Windows\SysWOW64\timeout.exetimeout /t 53⤵
- Delays execution with timeout.exe
PID:1068
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 4368 -s 22482⤵
- Program crash
PID:1620
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 464 -p 4368 -ip 43681⤵PID:4956
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
MD5d8c99c5dd392f68fc5b546dfd9020e0f
SHA1b157ece3c88b5a58d6ecc59d56db1dd08fe8cfe1
SHA256d0ae0f42b639a1dc06fc46b8f2d711f8198e328b4101f4398190d635f1914c5f
SHA512961c2f0ef15858aaf1b02eba93da79b9c8c00c3cb34ef5d63fdefe565ceed47739a4d4e604347e2d71e9ad18a6a01064bc3534b805abf248b96373c9f8a7def2
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Filesize
1.9MB
MD5d8c99c5dd392f68fc5b546dfd9020e0f
SHA1b157ece3c88b5a58d6ecc59d56db1dd08fe8cfe1
SHA256d0ae0f42b639a1dc06fc46b8f2d711f8198e328b4101f4398190d635f1914c5f
SHA512961c2f0ef15858aaf1b02eba93da79b9c8c00c3cb34ef5d63fdefe565ceed47739a4d4e604347e2d71e9ad18a6a01064bc3534b805abf248b96373c9f8a7def2
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Filesize
554.7MB
MD5b25a7455423e44d774227eacc7d2fc1c
SHA19a81bb42aeb96f4f013423894749b823c53cf010
SHA256ab317081767a165ba1f7df094b073676f6695da2bc94f0399c9a6d571fb10001
SHA51244019acd460d7a6bcd00a90013c51f9bd66f6796103873af47a2ba4f3c2238feb54e9e3d815fde27c7862c690e162895a595247c1e0caa9fb49167228d333ef4
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Filesize
555.2MB
MD520af1ce2ecbfd84b8eeca189d2d15c19
SHA16bbe48b7d34d47fe1e885a53c260a1bf7a53fbc3
SHA256efa33045ae39a48b898eedf9053cb067b0bac89c81a2d0e59d0ce56ad01a7b02
SHA5120ee7fe69a28ef8c6ac0b24491679f435d39ec31f31207a4f6f56a8aeda30de796e4dbc8d0e2e77d25ee5c3e0dbb95fcc08badc9976a5606aa4e338480dc445a1
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Filesize
557.6MB
MD55c1f166cc6a127adecb5688687e6cdce
SHA1028bcae1ffd1ff1c65901a4b1a2b865b814cc585
SHA256f5b14d338986b6e4f2e1107c156a800018d55d016b0da053bab5f3d76a979772
SHA5126d2342a6d3203cbbd2e3a0a9198fc20c4e5b447d5ec6fdad1abdbcba76cf3862b4c21c6d9817f674d666415e0e8aaf1ccfecb4b3babcb99e9e8ddeab3656e1b0