Analysis
-
max time kernel
144s -
max time network
121s -
platform
windows10_x64 -
resource
win10v20201028 -
submitted
13-11-2020 16:21
Static task
static1
Behavioral task
behavioral1
Sample
78f2928a8650e66c9701ca99334a70ef309ff551d2932f2819e80125028a8164.exe
Resource
win7v20201028
General
-
Target
78f2928a8650e66c9701ca99334a70ef309ff551d2932f2819e80125028a8164.exe
-
Size
1.1MB
-
MD5
989e7890bf658ab56ee9eec72cd8483b
-
SHA1
777fb8de248994011e1fbce4502c00de9ca0d976
-
SHA256
78f2928a8650e66c9701ca99334a70ef309ff551d2932f2819e80125028a8164
-
SHA512
3a747302ddfeb82a9df59096b84324775be29ad8c89f6bf8bb0e9a9af62f8a31f9378928f4dc7672d6ee99b0a118812f0ad1c82e1077fe99643acf2c5e00aec3
Malware Config
Extracted
Protocol: smtp- Host:
smtp.casalsmd.com - Port:
587 - Username:
carolina@casalsmd.com - Password:
Carolina123
Signatures
-
Processes:
resource yara_rule behavioral2/memory/2424-1-0x0000000000400000-0x000000000051D000-memory.dmp upx behavioral2/memory/2424-3-0x0000000000400000-0x000000000051D000-memory.dmp upx behavioral2/memory/2424-4-0x0000000000400000-0x000000000051D000-memory.dmp upx -
Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
-
Uses the VBS compiler for execution 1 TTPs
-
Adds Run key to start application 2 TTPs 1 IoCs
Processes:
78f2928a8650e66c9701ca99334a70ef309ff551d2932f2819e80125028a8164.exedescription ioc process Set value (str) \REGISTRY\USER\S-1-5-21-3341490333-719741536-2920803124-1000\Software\Microsoft\Windows\CurrentVersion\Run\Windows Update = "C:\\Users\\Admin\\AppData\\Roaming\\WindowsUpdate.exe" 78f2928a8650e66c9701ca99334a70ef309ff551d2932f2819e80125028a8164.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.
Processes:
flow ioc 17 whatismyipaddress.com 19 whatismyipaddress.com -
Suspicious use of SetThreadContext 3 IoCs
Processes:
78f2928a8650e66c9701ca99334a70ef309ff551d2932f2819e80125028a8164.exe78f2928a8650e66c9701ca99334a70ef309ff551d2932f2819e80125028a8164.exedescription pid process target process PID 3980 set thread context of 2424 3980 78f2928a8650e66c9701ca99334a70ef309ff551d2932f2819e80125028a8164.exe 78f2928a8650e66c9701ca99334a70ef309ff551d2932f2819e80125028a8164.exe PID 2424 set thread context of 3164 2424 78f2928a8650e66c9701ca99334a70ef309ff551d2932f2819e80125028a8164.exe vbc.exe PID 2424 set thread context of 608 2424 78f2928a8650e66c9701ca99334a70ef309ff551d2932f2819e80125028a8164.exe vbc.exe -
Suspicious behavior: EnumeratesProcesses 5 IoCs
Processes:
78f2928a8650e66c9701ca99334a70ef309ff551d2932f2819e80125028a8164.exevbc.exe78f2928a8650e66c9701ca99334a70ef309ff551d2932f2819e80125028a8164.exepid process 3980 78f2928a8650e66c9701ca99334a70ef309ff551d2932f2819e80125028a8164.exe 3980 78f2928a8650e66c9701ca99334a70ef309ff551d2932f2819e80125028a8164.exe 608 vbc.exe 608 vbc.exe 2424 78f2928a8650e66c9701ca99334a70ef309ff551d2932f2819e80125028a8164.exe -
Suspicious behavior: MapViewOfSection 1 IoCs
Processes:
78f2928a8650e66c9701ca99334a70ef309ff551d2932f2819e80125028a8164.exepid process 3980 78f2928a8650e66c9701ca99334a70ef309ff551d2932f2819e80125028a8164.exe -
Suspicious use of AdjustPrivilegeToken 1 IoCs
Processes:
78f2928a8650e66c9701ca99334a70ef309ff551d2932f2819e80125028a8164.exedescription pid process Token: SeDebugPrivilege 2424 78f2928a8650e66c9701ca99334a70ef309ff551d2932f2819e80125028a8164.exe -
Suspicious use of SetWindowsHookEx 1 IoCs
Processes:
78f2928a8650e66c9701ca99334a70ef309ff551d2932f2819e80125028a8164.exepid process 2424 78f2928a8650e66c9701ca99334a70ef309ff551d2932f2819e80125028a8164.exe -
Suspicious use of WriteProcessMemory 21 IoCs
Processes:
78f2928a8650e66c9701ca99334a70ef309ff551d2932f2819e80125028a8164.exe78f2928a8650e66c9701ca99334a70ef309ff551d2932f2819e80125028a8164.exedescription pid process target process PID 3980 wrote to memory of 2424 3980 78f2928a8650e66c9701ca99334a70ef309ff551d2932f2819e80125028a8164.exe 78f2928a8650e66c9701ca99334a70ef309ff551d2932f2819e80125028a8164.exe PID 3980 wrote to memory of 2424 3980 78f2928a8650e66c9701ca99334a70ef309ff551d2932f2819e80125028a8164.exe 78f2928a8650e66c9701ca99334a70ef309ff551d2932f2819e80125028a8164.exe PID 3980 wrote to memory of 2424 3980 78f2928a8650e66c9701ca99334a70ef309ff551d2932f2819e80125028a8164.exe 78f2928a8650e66c9701ca99334a70ef309ff551d2932f2819e80125028a8164.exe PID 2424 wrote to memory of 3164 2424 78f2928a8650e66c9701ca99334a70ef309ff551d2932f2819e80125028a8164.exe vbc.exe PID 2424 wrote to memory of 3164 2424 78f2928a8650e66c9701ca99334a70ef309ff551d2932f2819e80125028a8164.exe vbc.exe PID 2424 wrote to memory of 3164 2424 78f2928a8650e66c9701ca99334a70ef309ff551d2932f2819e80125028a8164.exe vbc.exe PID 2424 wrote to memory of 3164 2424 78f2928a8650e66c9701ca99334a70ef309ff551d2932f2819e80125028a8164.exe vbc.exe PID 2424 wrote to memory of 3164 2424 78f2928a8650e66c9701ca99334a70ef309ff551d2932f2819e80125028a8164.exe vbc.exe PID 2424 wrote to memory of 3164 2424 78f2928a8650e66c9701ca99334a70ef309ff551d2932f2819e80125028a8164.exe vbc.exe PID 2424 wrote to memory of 3164 2424 78f2928a8650e66c9701ca99334a70ef309ff551d2932f2819e80125028a8164.exe vbc.exe PID 2424 wrote to memory of 3164 2424 78f2928a8650e66c9701ca99334a70ef309ff551d2932f2819e80125028a8164.exe vbc.exe PID 2424 wrote to memory of 3164 2424 78f2928a8650e66c9701ca99334a70ef309ff551d2932f2819e80125028a8164.exe vbc.exe PID 2424 wrote to memory of 608 2424 78f2928a8650e66c9701ca99334a70ef309ff551d2932f2819e80125028a8164.exe vbc.exe PID 2424 wrote to memory of 608 2424 78f2928a8650e66c9701ca99334a70ef309ff551d2932f2819e80125028a8164.exe vbc.exe PID 2424 wrote to memory of 608 2424 78f2928a8650e66c9701ca99334a70ef309ff551d2932f2819e80125028a8164.exe vbc.exe PID 2424 wrote to memory of 608 2424 78f2928a8650e66c9701ca99334a70ef309ff551d2932f2819e80125028a8164.exe vbc.exe PID 2424 wrote to memory of 608 2424 78f2928a8650e66c9701ca99334a70ef309ff551d2932f2819e80125028a8164.exe vbc.exe PID 2424 wrote to memory of 608 2424 78f2928a8650e66c9701ca99334a70ef309ff551d2932f2819e80125028a8164.exe vbc.exe PID 2424 wrote to memory of 608 2424 78f2928a8650e66c9701ca99334a70ef309ff551d2932f2819e80125028a8164.exe vbc.exe PID 2424 wrote to memory of 608 2424 78f2928a8650e66c9701ca99334a70ef309ff551d2932f2819e80125028a8164.exe vbc.exe PID 2424 wrote to memory of 608 2424 78f2928a8650e66c9701ca99334a70ef309ff551d2932f2819e80125028a8164.exe vbc.exe
Processes
-
C:\Users\Admin\AppData\Local\Temp\78f2928a8650e66c9701ca99334a70ef309ff551d2932f2819e80125028a8164.exe"C:\Users\Admin\AppData\Local\Temp\78f2928a8650e66c9701ca99334a70ef309ff551d2932f2819e80125028a8164.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\Temp\78f2928a8650e66c9701ca99334a70ef309ff551d2932f2819e80125028a8164.exe"C:\Users\Admin\AppData\Local\Temp\78f2928a8650e66c9701ca99334a70ef309ff551d2932f2819e80125028a8164.exe"2⤵
- Adds Run key to start application
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
-
C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exeC:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe /stext "C:\Users\Admin\AppData\Local\Temp\holdermail.txt"3⤵
-
C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exeC:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe /stext "C:\Users\Admin\AppData\Local\Temp\holderwb.txt"3⤵
- Suspicious behavior: EnumeratesProcesses
Network
MITRE ATT&CK Matrix ATT&CK v6
Replay Monitor
Loading Replay Monitor...
Downloads
-
C:\Users\Admin\AppData\Local\Temp\holderwb.txtMD5
f94dc819ca773f1e3cb27abbc9e7fa27
SHA19a7700efadc5ea09ab288544ef1e3cd876255086
SHA256a3377ade83786c2bdff5db19ff4dbfd796da4312402b5e77c4c63e38cc6eff92
SHA51272a2c10d7a53a7f9a319dab66d77ed65639e9aa885b551e0055fc7eaf6ef33bbf109205b42ae11555a0f292563914bc6edb63b310c6f9bda9564095f77ab9196
-
memory/608-10-0x0000000000400000-0x0000000000458000-memory.dmpFilesize
352KB
-
memory/608-12-0x0000000000400000-0x0000000000458000-memory.dmpFilesize
352KB
-
memory/608-11-0x0000000000442628-mapping.dmp
-
memory/2424-6-0x0000000002222000-0x0000000002223000-memory.dmpFilesize
4KB
-
memory/2424-5-0x00000000022C0000-0x0000000002348000-memory.dmpFilesize
544KB
-
memory/2424-4-0x0000000000400000-0x000000000051D000-memory.dmpFilesize
1.1MB
-
memory/2424-3-0x0000000000400000-0x000000000051D000-memory.dmpFilesize
1.1MB
-
memory/2424-2-0x000000000051B4D0-mapping.dmp
-
memory/2424-1-0x0000000000400000-0x000000000051D000-memory.dmpFilesize
1.1MB
-
memory/3164-7-0x0000000000400000-0x000000000041B000-memory.dmpFilesize
108KB
-
memory/3164-9-0x0000000000400000-0x000000000041B000-memory.dmpFilesize
108KB
-
memory/3164-8-0x0000000000411654-mapping.dmp
-
memory/3980-0-0x0000000000400000-0x0000000000517000-memory.dmpFilesize
1.1MB