Analysis
-
max time kernel
145s -
max time network
152s -
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 17:31
Static task
static1
General
-
Target
15539a353d5b7e18b87b30f717454dc25c4261954d97af791596ea49acb1fa92.exe
-
Size
291KB
-
MD5
8cca6d631010620a368ddc7925c0649c
-
SHA1
cbac7cdb0b393a64a25726c09c718616e83ffa8f
-
SHA256
15539a353d5b7e18b87b30f717454dc25c4261954d97af791596ea49acb1fa92
-
SHA512
4c38a618668d2fe78ee950aaadd4f32d7f4ff3130039efefb1e039bc79aeedb2e065141fdd96d4255735ffb68a991b83e0d4609e02a76a958c99feda4f24135c
-
SSDEEP
3072:2D2H6X9LmnZiTw5aX/ifwSYt3pkki/c9yEh+vp5nbrSLJhCe:MX9LmnMTlX/iYSYPkR/cWvzvohC
Malware Config
Extracted
laplas
http://45.87.154.105
-
api_key
1c630872d348a77d04368d542fde4663bc2bcb96f1b909554db3472c08df2767
Signatures
-
Downloads MZ/PE file
-
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-1-5-21-144354903-2550862337-1367551827-1000\Control Panel\International\Geo\Nation 15539a353d5b7e18b87b30f717454dc25c4261954d97af791596ea49acb1fa92.exe -
Executes dropped EXE 2 IoCs
pid Process 3924 BFIIIDAFBF.exe 4852 ntlhost.exe -
Loads dropped DLL 2 IoCs
pid Process 2200 15539a353d5b7e18b87b30f717454dc25c4261954d97af791596ea49acb1fa92.exe 2200 15539a353d5b7e18b87b30f717454dc25c4261954d97af791596ea49acb1fa92.exe -
Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
-
Accesses cryptocurrency files/wallets, possible credential harvesting 2 TTPs
-
Adds Run key to start application 2 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-144354903-2550862337-1367551827-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\NTSystem = "C:\\Users\\Admin\\AppData\\Roaming\\NTSystem\\ntlhost.exe" BFIIIDAFBF.exe -
Checks installed software on the system 1 TTPs
Looks up Uninstall key entries in the registry to enumerate software on the system.
-
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
-
Program crash 1 IoCs
pid pid_target Process procid_target 4712 2200 WerFault.exe 84 -
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 15539a353d5b7e18b87b30f717454dc25c4261954d97af791596ea49acb1fa92.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString 15539a353d5b7e18b87b30f717454dc25c4261954d97af791596ea49acb1fa92.exe -
Delays execution with timeout.exe 1 IoCs
pid Process 2620 timeout.exe -
GoLang User-Agent 1 IoCs
Uses default user-agent string defined by GoLang HTTP packages.
description flow ioc HTTP User-Agent header 51 Go-http-client/1.1 -
Suspicious behavior: EnumeratesProcesses 2 IoCs
pid Process 2200 15539a353d5b7e18b87b30f717454dc25c4261954d97af791596ea49acb1fa92.exe 2200 15539a353d5b7e18b87b30f717454dc25c4261954d97af791596ea49acb1fa92.exe -
Suspicious use of WriteProcessMemory 15 IoCs
description pid Process procid_target PID 2200 wrote to memory of 536 2200 15539a353d5b7e18b87b30f717454dc25c4261954d97af791596ea49acb1fa92.exe 85 PID 2200 wrote to memory of 536 2200 15539a353d5b7e18b87b30f717454dc25c4261954d97af791596ea49acb1fa92.exe 85 PID 2200 wrote to memory of 536 2200 15539a353d5b7e18b87b30f717454dc25c4261954d97af791596ea49acb1fa92.exe 85 PID 2200 wrote to memory of 3084 2200 15539a353d5b7e18b87b30f717454dc25c4261954d97af791596ea49acb1fa92.exe 87 PID 2200 wrote to memory of 3084 2200 15539a353d5b7e18b87b30f717454dc25c4261954d97af791596ea49acb1fa92.exe 87 PID 2200 wrote to memory of 3084 2200 15539a353d5b7e18b87b30f717454dc25c4261954d97af791596ea49acb1fa92.exe 87 PID 536 wrote to memory of 3924 536 cmd.exe 91 PID 536 wrote to memory of 3924 536 cmd.exe 91 PID 536 wrote to memory of 3924 536 cmd.exe 91 PID 3084 wrote to memory of 2620 3084 cmd.exe 92 PID 3084 wrote to memory of 2620 3084 cmd.exe 92 PID 3084 wrote to memory of 2620 3084 cmd.exe 92 PID 3924 wrote to memory of 4852 3924 BFIIIDAFBF.exe 102 PID 3924 wrote to memory of 4852 3924 BFIIIDAFBF.exe 102 PID 3924 wrote to memory of 4852 3924 BFIIIDAFBF.exe 102
Processes
-
C:\Users\Admin\AppData\Local\Temp\15539a353d5b7e18b87b30f717454dc25c4261954d97af791596ea49acb1fa92.exe"C:\Users\Admin\AppData\Local\Temp\15539a353d5b7e18b87b30f717454dc25c4261954d97af791596ea49acb1fa92.exe"1⤵
- Checks computer location settings
- Loads dropped DLL
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:2200 -
C:\Windows\SysWOW64\cmd.exe"C:\Windows\system32\cmd.exe" /c start "" "C:\Users\Admin\AppData\Local\Temp\BFIIIDAFBF.exe"2⤵
- Suspicious use of WriteProcessMemory
PID:536 -
C:\Users\Admin\AppData\Local\Temp\BFIIIDAFBF.exe"C:\Users\Admin\AppData\Local\Temp\BFIIIDAFBF.exe"3⤵
- Executes dropped EXE
- Adds Run key to start application
- Suspicious use of WriteProcessMemory
PID:3924 -
C:\Users\Admin\AppData\Roaming\NTSystem\ntlhost.exeC:\Users\Admin\AppData\Roaming\NTSystem\ntlhost.exe4⤵
- Executes dropped EXE
PID:4852
-
-
-
-
C:\Windows\SysWOW64\cmd.exe"C:\Windows\system32\cmd.exe" /c timeout /t 5 & del /f /q "C:\Users\Admin\AppData\Local\Temp\15539a353d5b7e18b87b30f717454dc25c4261954d97af791596ea49acb1fa92.exe" & del "C:\ProgramData\*.dll"" & exit2⤵
- Suspicious use of WriteProcessMemory
PID:3084 -
C:\Windows\SysWOW64\timeout.exetimeout /t 53⤵
- Delays execution with timeout.exe
PID:2620
-
-
-
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 2200 -s 22642⤵
- Program crash
PID:4712
-
-
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 420 -p 2200 -ip 22001⤵PID:1960
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
Loading Replay Monitor...
Downloads
-
Filesize
593KB
MD5c8fd9be83bc728cc04beffafc2907fe9
SHA195ab9f701e0024cedfbd312bcfe4e726744c4f2e
SHA256ba06a6ee0b15f5be5c4e67782eec8b521e36c107a329093ec400fe0404eb196a
SHA512fbb446f4a27ef510e616caad52945d6c9cc1fd063812c41947e579ec2b54df57c6dc46237ded80fca5847f38cbe1747a6c66a13e2c8c19c664a72be35eb8b040
-
Filesize
593KB
MD5c8fd9be83bc728cc04beffafc2907fe9
SHA195ab9f701e0024cedfbd312bcfe4e726744c4f2e
SHA256ba06a6ee0b15f5be5c4e67782eec8b521e36c107a329093ec400fe0404eb196a
SHA512fbb446f4a27ef510e616caad52945d6c9cc1fd063812c41947e579ec2b54df57c6dc46237ded80fca5847f38cbe1747a6c66a13e2c8c19c664a72be35eb8b040
-
Filesize
2.0MB
MD51cc453cdf74f31e4d913ff9c10acdde2
SHA16e85eae544d6e965f15fa5c39700fa7202f3aafe
SHA256ac5c92fe6c51cfa742e475215b83b3e11a4379820043263bf50d4068686c6fa5
SHA512dd9ff4e06b00dc831439bab11c10e9b2ae864ea6e780d3835ea7468818f35439f352ef137da111efcdf2bb6465f6ca486719451bf6cf32c6a4420a56b1d64571
-
Filesize
1.9MB
MD543c579b61538e72afa5307046c2f110d
SHA1b8c34206cec5c7993ec20c4bf6ce78c024179137
SHA25676cc8757ee316be0f5df4dc50c3a037c80c973010bf14865530c6565ed9dd6cc
SHA5123b4dfeea0d5c44bb419eba2a063d4ecee83862b2a06aae446b7a591c60bce93dfcd58c382a72d597a302ea12be3efa6711fb9791b34c85faed5867c3bef59d52
-
Filesize
1.9MB
MD543c579b61538e72afa5307046c2f110d
SHA1b8c34206cec5c7993ec20c4bf6ce78c024179137
SHA25676cc8757ee316be0f5df4dc50c3a037c80c973010bf14865530c6565ed9dd6cc
SHA5123b4dfeea0d5c44bb419eba2a063d4ecee83862b2a06aae446b7a591c60bce93dfcd58c382a72d597a302ea12be3efa6711fb9791b34c85faed5867c3bef59d52
-
Filesize
394.7MB
MD5b524be1283a91643b2a0125f86310c76
SHA11bacb9e000a8bb4aef95cbcfd12e30b5315b613e
SHA2569df4467594e2c77dded41e6c0c6f039fb4416590e395c249f11911772fc115ca
SHA5120d0b8ea68928ca889ff6efd52809b986f4f16b145c1431d2c7142d6b0e626bdde75e661af25610534e44e28b934aa2b53eca7687700f55ed5e2ae2acfaff43d3
-
Filesize
477.7MB
MD5eb4e9505062f53a0508f071cf99d25c8
SHA1901e71e6f72b46af6fb576d4eb09cd10734906c4
SHA2563b38d91b4b12e83f1b0339154e12c7f601359bf1c897c9dcea9c38f8953eb6b3
SHA5127f9cab2b31904c249ba6e3eff69b98e9a6a83b0da5ebde0182565ab87083a600dde5f75601955304b73520c5f55e791bfe08ec8c714edb485b24c362803c54a0
-
Filesize
417.4MB
MD53fdace12f54ae540d137a9d5a484393f
SHA19fdef37f560c67d2f92c97eddc9ef62220fa266f
SHA2560ef76e6c75f97e148066b2f6d2c2b9a25e76bc2d4c79602aaf6e45f602ba6fc6
SHA5121bb4bffbf9226cdf2f9ea27cc26f643354e5816a379e5f3f180fbceca954e32da7bbebb0d76e0b464aa70f3b1e2edd7ae5c239dede2f759191c7c87d534f971f