Analysis
- max time kernel
151s - max time network
148s - platform
windows7_x64 - resource
win7 - submitted
03/07/2020, 12:25
Static task
static1
Behavioral task
behavioral1
Sample
order03JUL2020309557.exe
Resource
win7
0 signatures
0 seconds
General
- Target order03JUL2020309557.exe
- Size 1.1MB
- Sample200703-ap33rl3a4e
- SHA256 fd25d39f3f2eeec2ecf1db20ea303f7389a1ed1b703ab6991e656d13811af1a2
- MD5 5754534eda26fd7f7595d0494e827794
- SHA1 585cacd7daa152151182763522d89185e6020b93
- SHA512 eb48c4c3e9f37cb4f617fc0cba22827e921ec958790f6bfbc3374ceb57fc0e6c4afe4a48f05ed446280e5257312d37befc330ee1645416e88343d8564b686cd5
- MD5 SHA1 SHA512
Malware Config
Extracted
Credentials
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Protocol
smtp
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Host
webmail.tos-thailand.com
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Port
587
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Username
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Password
P@ssw0rd
Signatures
- Suspicious behavior: MapViewOfSection 2 IoCs
pid Process 1460 order03JUL2020309557.exe 828 Windows Update.exe - Suspicious use of SetThreadContext 4 IoCs
description pid Process procid_target PID 1460 set thread context of 1512 1460 order03JUL2020309557.exe 24 PID 828 set thread context of 1532 828 Windows Update.exe 26 PID 1532 set thread context of 1660 1532 Windows Update.exe 28 PID 1532 set thread context of 1628 1532 Windows Update.exe 29 - Loads dropped DLL 8 IoCs
pid Process 1512 order03JUL2020309557.exe 828 Windows Update.exe 828 Windows Update.exe 828 Windows Update.exe 828 Windows Update.exe 1532 Windows Update.exe 1532 Windows Update.exe 1532 Windows Update.exe - Suspicious behavior: EnumeratesProcesses 3 IoCs
pid Process 1460 order03JUL2020309557.exe 828 Windows Update.exe 1532 Windows Update.exe - Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
- Deletes itself 1 IoCs
pid Process 1532 Windows Update.exe - Suspicious use of AdjustPrivilegeToken 1 IoCs
description pid Process Token: SeDebugPrivilege 1532 Windows Update.exe - UPX packed file 5 IoCs
Detects executables packed with UPX/modified UPX open source packer.
resource yara_rule behavioral1/memory/1512-0-0x0000000000400000-0x000000000051D000-memory.dmp upx behavioral1/memory/1512-2-0x0000000000400000-0x000000000051D000-memory.dmp upx behavioral1/memory/1512-3-0x0000000000400000-0x000000000051D000-memory.dmp upx behavioral1/memory/1532-23-0x0000000000400000-0x000000000051D000-memory.dmp upx behavioral1/memory/1532-24-0x0000000000400000-0x000000000051D000-memory.dmp upx - Adds Run entry to start application 2 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-1131729243-447456001-3632642222-1000\Software\Microsoft\Windows\CurrentVersion\Run\Windows Update = "C:\\Users\\Admin\\AppData\\Roaming\\WindowsUpdate.exe" Windows Update.exe - Looks up external IP address via web service 3 IoCs
Uses a legitimate IP lookup service to find the infected system's external IP.
flow ioc 4 whatismyipaddress.com 6 whatismyipaddress.com 7 whatismyipaddress.com - Suspicious use of WriteProcessMemory 44 IoCs
description pid Process procid_target PID 1460 wrote to memory of 1512 1460 order03JUL2020309557.exe 24 PID 1460 wrote to memory of 1512 1460 order03JUL2020309557.exe 24 PID 1460 wrote to memory of 1512 1460 order03JUL2020309557.exe 24 PID 1460 wrote to memory of 1512 1460 order03JUL2020309557.exe 24 PID 1512 wrote to memory of 828 1512 order03JUL2020309557.exe 25 PID 1512 wrote to memory of 828 1512 order03JUL2020309557.exe 25 PID 1512 wrote to memory of 828 1512 order03JUL2020309557.exe 25 PID 1512 wrote to memory of 828 1512 order03JUL2020309557.exe 25 PID 1512 wrote to memory of 828 1512 order03JUL2020309557.exe 25 PID 1512 wrote to memory of 828 1512 order03JUL2020309557.exe 25 PID 1512 wrote to memory of 828 1512 order03JUL2020309557.exe 25 PID 828 wrote to memory of 1532 828 Windows Update.exe 26 PID 828 wrote to memory of 1532 828 Windows Update.exe 26 PID 828 wrote to memory of 1532 828 Windows Update.exe 26 PID 828 wrote to memory of 1532 828 Windows Update.exe 26 PID 828 wrote to memory of 1532 828 Windows Update.exe 26 PID 828 wrote to memory of 1532 828 Windows Update.exe 26 PID 828 wrote to memory of 1532 828 Windows Update.exe 26 PID 1532 wrote to memory of 1660 1532 Windows Update.exe 28 PID 1532 wrote to memory of 1660 1532 Windows Update.exe 28 PID 1532 wrote to memory of 1660 1532 Windows Update.exe 28 PID 1532 wrote to memory of 1660 1532 Windows Update.exe 28 PID 1532 wrote to memory of 1660 1532 Windows Update.exe 28 PID 1532 wrote to memory of 1660 1532 Windows Update.exe 28 PID 1532 wrote to memory of 1660 1532 Windows Update.exe 28 PID 1532 wrote to memory of 1660 1532 Windows Update.exe 28 PID 1532 wrote to memory of 1660 1532 Windows Update.exe 28 PID 1532 wrote to memory of 1660 1532 Windows Update.exe 28 PID 1532 wrote to memory of 1660 1532 Windows Update.exe 28 PID 1532 wrote to memory of 1660 1532 Windows Update.exe 28 PID 1532 wrote to memory of 1660 1532 Windows Update.exe 28 PID 1532 wrote to memory of 1628 1532 Windows Update.exe 29 PID 1532 wrote to memory of 1628 1532 Windows Update.exe 29 PID 1532 wrote to memory of 1628 1532 Windows Update.exe 29 PID 1532 wrote to memory of 1628 1532 Windows Update.exe 29 PID 1532 wrote to memory of 1628 1532 Windows Update.exe 29 PID 1532 wrote to memory of 1628 1532 Windows Update.exe 29 PID 1532 wrote to memory of 1628 1532 Windows Update.exe 29 PID 1532 wrote to memory of 1628 1532 Windows Update.exe 29 PID 1532 wrote to memory of 1628 1532 Windows Update.exe 29 PID 1532 wrote to memory of 1628 1532 Windows Update.exe 29 PID 1532 wrote to memory of 1628 1532 Windows Update.exe 29 PID 1532 wrote to memory of 1628 1532 Windows Update.exe 29 PID 1532 wrote to memory of 1628 1532 Windows Update.exe 29 - Executes dropped EXE 2 IoCs
pid Process 828 Windows Update.exe 1532 Windows Update.exe - Suspicious use of SetWindowsHookEx 1 IoCs
pid Process 1532 Windows Update.exe - Uses the VBS compiler for execution 1 TTPs
Processes
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C:\Users\Admin\AppData\Local\Temp\order03JUL2020309557.exe"C:\Users\Admin\AppData\Local\Temp\order03JUL2020309557.exe"1⤵
- Suspicious behavior: MapViewOfSection
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:1460 -
C:\Users\Admin\AppData\Local\Temp\order03JUL2020309557.exe"C:\Users\Admin\AppData\Local\Temp\order03JUL2020309557.exe"2⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:1512 -
C:\Users\Admin\AppData\Roaming\Windows Update.exe"C:\Users\Admin\AppData\Roaming\Windows Update.exe"3⤵
- Suspicious behavior: MapViewOfSection
- Suspicious use of SetThreadContext
- Loads dropped DLL
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
- Executes dropped EXE
PID:828 -
C:\Users\Admin\AppData\Roaming\Windows Update.exe"C:\Users\Admin\AppData\Roaming\Windows Update.exe"4⤵
- Suspicious use of SetThreadContext
- Loads dropped DLL
- Suspicious behavior: EnumeratesProcesses
- Deletes itself
- Suspicious use of AdjustPrivilegeToken
- Adds Run entry to start application
- Suspicious use of WriteProcessMemory
- Executes dropped EXE
- Suspicious use of SetWindowsHookEx
PID:1532 -
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"5⤵PID:1660
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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"5⤵PID:1628
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