Analysis
- max time kernel
151s - max time network
151s - platform
windows7_x64 - resource
win7v20210410 - submitted
10/08/2021, 13:55
Static task
static1
Behavioral task
behavioral1
Sample
90b1cbe8134460ff59be5af18cfca2b2.exe
Resource
win7v20210410
windows7_x64
0 signatures
0 seconds
General
- Target 90b1cbe8134460ff59be5af18cfca2b2.exe
- Size 349KB
- Sample210810-8871tdym42
- SHA256 4734dc7db41e3950d25055f82a5821cd3cd06ece663454c354e80d82fbc731da
- MD5 90b1cbe8134460ff59be5af18cfca2b2
- SHA1 7495b715042c9c5e76c6caf6a918320f15e3db73
- SHA512 8b698ed002bb845615b81bcd870ff06388732d78cde023f65d1c4cbd0c13d8552769508207180678370b5180a05102c07ea3d2586da92d3302e577e6883ab739
- MD5 SHA1 SHA512
Malware Config
Extracted
Family
-
smokeloader
Version
-
2020
C2
-
http://aucmoney.com/upload/
-
http://thegymmum.com/upload/
-
http://atvcampingtrips.com/upload/
-
http://kuapakualaman.com/upload/
-
http://renatazarazua.com/upload/
-
http://nasufmutlu.com/upload/
rc4.i32
rc4.i32
Extracted
Family
-
redline
Botnet
-
SewPalpadin
C2
-
185.215.113.114:8887
Signatures
- RedLine
RedLine Stealer is a malware family written in C#, first appearing in early 2020.
- RedLine Payload 2 IoCs
resource yara_rule behavioral1/memory/1316-75-0x0000000003640000-0x000000000365B000-memory.dmp family_redline behavioral1/memory/1316-76-0x0000000003660000-0x0000000003679000-memory.dmp family_redline - SmokeLoader
Modular backdoor trojan in use since 2014.
- Downloads MZ/PE file
- Executes dropped EXE 4 IoCs
pid Process 748 51E7.exe 572 51E7.exe 1316 5C92.exe 1096 51E7.exe - Deletes itself 1 IoCs
pid Process 1248 Process not Found - Loads dropped DLL 3 IoCs
pid Process 748 51E7.exe 572 51E7.exe 572 51E7.exe - Modifies file permissions 1 TTPs 1 IoCs
pid Process 1788 icacls.exe - Adds Run key to start application 2 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-2513283230-931923277-594887482-1000\Software\Microsoft\Windows\CurrentVersion\Run\SysHelper = "\"C:\\Users\\Admin\\AppData\\Local\\bc0f24d2-7690-44ec-994c-8d39e1d75d7e\\51E7.exe\" --AutoStart" 51E7.exe - Looks up external IP address via web service 2 IoCs
Uses a legitimate IP lookup service to find the infected system's external IP.
flow ioc 20 api.2ip.ua 21 api.2ip.ua - Suspicious use of SetThreadContext 1 IoCs
description pid Process procid_target PID 748 set thread context of 572 748 51E7.exe 30 - Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
- Checks SCSI registry key(s) 3 TTPs 3 IoCs
SCSI information is often read in order to detect sandboxing environments.
description ioc Process Key queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI 90b1cbe8134460ff59be5af18cfca2b2.exe Key enumerated \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI 90b1cbe8134460ff59be5af18cfca2b2.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI 90b1cbe8134460ff59be5af18cfca2b2.exe -
description ioc Process Key created \REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\AuthRoot\Certificates\D1EB23A46D17D68FD92564C2F1F1601764D8E349 51E7.exe Set value (data) \REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\AuthRoot\Certificates\D1EB23A46D17D68FD92564C2F1F1601764D8E349\Blob = 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 51E7.exe Set value (data) \REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\AuthRoot\Certificates\D1EB23A46D17D68FD92564C2F1F1601764D8E349\Blob = 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 51E7.exe - Suspicious behavior: EnumeratesProcesses 64 IoCs
pid Process 1096 90b1cbe8134460ff59be5af18cfca2b2.exe 1096 90b1cbe8134460ff59be5af18cfca2b2.exe 1248 Process not Found 1248 Process not Found 1248 Process not Found 1248 Process not Found 1248 Process not Found 1248 Process not Found 1248 Process not Found 1248 Process not Found 1248 Process not Found 1248 Process not Found 1248 Process not Found 1248 Process not Found 1248 Process not Found 1248 Process not Found 1248 Process not Found 1248 Process not Found 1248 Process not Found 1248 Process not Found 1248 Process not Found 1248 Process not Found 1248 Process not Found 1248 Process not Found 1248 Process not Found 1248 Process not Found 1248 Process not Found 1248 Process not Found 1248 Process not Found 1248 Process not Found 1248 Process not Found 1248 Process not Found 1248 Process not Found 1248 Process not Found 1248 Process not Found 1248 Process not Found 1248 Process not Found 1248 Process not Found 1248 Process not Found 1248 Process not Found 1248 Process not Found 1248 Process not Found 1248 Process not Found 1248 Process not Found 1248 Process not Found 1248 Process not Found 1248 Process not Found 1248 Process not Found 1248 Process not Found 1248 Process not Found 1248 Process not Found 1248 Process not Found 1248 Process not Found 1248 Process not Found 1248 Process not Found 1248 Process not Found 1248 Process not Found 1248 Process not Found 1248 Process not Found 1248 Process not Found 1248 Process not Found 1248 Process not Found 1248 Process not Found 1248 Process not Found - Suspicious behavior: GetForegroundWindowSpam 1 IoCs
pid Process 1248 Process not Found - Suspicious behavior: MapViewOfSection 1 IoCs
pid Process 1096 90b1cbe8134460ff59be5af18cfca2b2.exe - Suspicious use of FindShellTrayWindow 4 IoCs
pid Process 1248 Process not Found 1248 Process not Found 1248 Process not Found 1248 Process not Found - Suspicious use of SendNotifyMessage 4 IoCs
pid Process 1248 Process not Found 1248 Process not Found 1248 Process not Found 1248 Process not Found - Suspicious use of WriteProcessMemory 27 IoCs
description pid Process procid_target PID 1248 wrote to memory of 748 1248 Process not Found 29 PID 1248 wrote to memory of 748 1248 Process not Found 29 PID 1248 wrote to memory of 748 1248 Process not Found 29 PID 1248 wrote to memory of 748 1248 Process not Found 29 PID 748 wrote to memory of 572 748 51E7.exe 30 PID 748 wrote to memory of 572 748 51E7.exe 30 PID 748 wrote to memory of 572 748 51E7.exe 30 PID 748 wrote to memory of 572 748 51E7.exe 30 PID 748 wrote to memory of 572 748 51E7.exe 30 PID 748 wrote to memory of 572 748 51E7.exe 30 PID 748 wrote to memory of 572 748 51E7.exe 30 PID 748 wrote to memory of 572 748 51E7.exe 30 PID 748 wrote to memory of 572 748 51E7.exe 30 PID 748 wrote to memory of 572 748 51E7.exe 30 PID 748 wrote to memory of 572 748 51E7.exe 30 PID 1248 wrote to memory of 1316 1248 Process not Found 31 PID 1248 wrote to memory of 1316 1248 Process not Found 31 PID 1248 wrote to memory of 1316 1248 Process not Found 31 PID 1248 wrote to memory of 1316 1248 Process not Found 31 PID 572 wrote to memory of 1788 572 51E7.exe 34 PID 572 wrote to memory of 1788 572 51E7.exe 34 PID 572 wrote to memory of 1788 572 51E7.exe 34 PID 572 wrote to memory of 1788 572 51E7.exe 34 PID 572 wrote to memory of 1096 572 51E7.exe 35 PID 572 wrote to memory of 1096 572 51E7.exe 35 PID 572 wrote to memory of 1096 572 51E7.exe 35 PID 572 wrote to memory of 1096 572 51E7.exe 35
Processes
-
C:\Users\Admin\AppData\Local\Temp\90b1cbe8134460ff59be5af18cfca2b2.exe"C:\Users\Admin\AppData\Local\Temp\90b1cbe8134460ff59be5af18cfca2b2.exe"1⤵
- Checks SCSI registry key(s)
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
PID:1096
-
C:\Users\Admin\AppData\Local\Temp\51E7.exeC:\Users\Admin\AppData\Local\Temp\51E7.exe1⤵
- Executes dropped EXE
- Loads dropped DLL
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:748 -
C:\Users\Admin\AppData\Local\Temp\51E7.exeC:\Users\Admin\AppData\Local\Temp\51E7.exe2⤵
- Executes dropped EXE
- Loads dropped DLL
- Adds Run key to start application
- Modifies system certificate store
- Suspicious use of WriteProcessMemory
PID:572 -
C:\Windows\SysWOW64\icacls.exeicacls "C:\Users\Admin\AppData\Local\bc0f24d2-7690-44ec-994c-8d39e1d75d7e" /deny *S-1-1-0:(OI)(CI)(DE,DC)3⤵
- Modifies file permissions
PID:1788
-
-
C:\Users\Admin\AppData\Local\Temp\51E7.exe"C:\Users\Admin\AppData\Local\Temp\51E7.exe" --Admin IsNotAutoStart IsNotTask3⤵
- Executes dropped EXE
PID:1096
-
-
-
C:\Users\Admin\AppData\Local\Temp\5C92.exeC:\Users\Admin\AppData\Local\Temp\5C92.exe1⤵
- Executes dropped EXE
PID:1316