Analysis
- max time kernel
151s - max time network
139s - platform
windows7_x64 - resource
win7 - submitted
05/10/2020, 14:21
Static task
static1
Behavioral task
behavioral1
Sample
order05102020.exe
Resource
win7
0 signatures
0 seconds
General
- Target order05102020.exe
- Size 964KB
- Sample201005-2cf15eqans
- SHA256 4e637d411a2b8e4c1195d87a4e0b28cf3c8519cbd1e64c1b4b8cc05f6aa31d9e
- MD5 c8592ab0e8c0714fcee6762dfda12da2
- SHA1 e2c55b05591cd9f85362b29092896536a94c9e8a
- SHA512 9e199837e60b77f1c0a5712ee2608411a42ef6488550f093b05c3339160028fa2b9ff09511f8734432bfcec10c64b0a08feb8112c10c6eb3362cf475c8d1aa91
- MD5 SHA1 SHA512
Malware Config
Extracted
Credentials
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Protocol
smtp
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Host
smtp.amargrand.mn
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Port
587
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Username
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Password
amar8888
Signatures
- Executes dropped EXE 2 IoCs
pid Process 1040 Windows Update.exe 1816 Windows Update.exe -
resource yara_rule behavioral1/memory/1616-1-0x0000000000400000-0x000000000051D000-memory.dmp upx behavioral1/memory/1616-3-0x0000000000400000-0x000000000051D000-memory.dmp upx behavioral1/memory/1616-4-0x0000000000400000-0x000000000051D000-memory.dmp upx behavioral1/memory/1816-25-0x0000000000400000-0x000000000051D000-memory.dmp upx behavioral1/memory/1816-26-0x0000000000400000-0x000000000051D000-memory.dmp upx - Deletes itself 1 IoCs
pid Process 1816 Windows Update.exe - Loads dropped DLL 8 IoCs
pid Process 1616 order05102020.exe 1040 Windows Update.exe 1040 Windows Update.exe 1040 Windows Update.exe 1040 Windows Update.exe 1816 Windows Update.exe 1816 Windows Update.exe 1816 Windows Update.exe - 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
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 9 whatismyipaddress.com 6 whatismyipaddress.com 8 whatismyipaddress.com - Suspicious use of SetThreadContext 4 IoCs
description pid Process procid_target PID 1044 set thread context of 1616 1044 order05102020.exe 25 PID 1040 set thread context of 1816 1040 Windows Update.exe 27 PID 1816 set thread context of 364 1816 Windows Update.exe 32 PID 1816 set thread context of 2000 1816 Windows Update.exe 33 - Suspicious behavior: EnumeratesProcesses 3 IoCs
pid Process 1044 order05102020.exe 1040 Windows Update.exe 1816 Windows Update.exe - Suspicious behavior: MapViewOfSection 2 IoCs
pid Process 1044 order05102020.exe 1040 Windows Update.exe - Suspicious use of AdjustPrivilegeToken 1 IoCs
description pid Process Token: SeDebugPrivilege 1816 Windows Update.exe - Suspicious use of SetWindowsHookEx 1 IoCs
pid Process 1816 Windows Update.exe - Suspicious use of WriteProcessMemory 44 IoCs
description pid Process procid_target PID 1044 wrote to memory of 1616 1044 order05102020.exe 25 PID 1044 wrote to memory of 1616 1044 order05102020.exe 25 PID 1044 wrote to memory of 1616 1044 order05102020.exe 25 PID 1044 wrote to memory of 1616 1044 order05102020.exe 25 PID 1616 wrote to memory of 1040 1616 order05102020.exe 26 PID 1616 wrote to memory of 1040 1616 order05102020.exe 26 PID 1616 wrote to memory of 1040 1616 order05102020.exe 26 PID 1616 wrote to memory of 1040 1616 order05102020.exe 26 PID 1616 wrote to memory of 1040 1616 order05102020.exe 26 PID 1616 wrote to memory of 1040 1616 order05102020.exe 26 PID 1616 wrote to memory of 1040 1616 order05102020.exe 26 PID 1040 wrote to memory of 1816 1040 Windows Update.exe 27 PID 1040 wrote to memory of 1816 1040 Windows Update.exe 27 PID 1040 wrote to memory of 1816 1040 Windows Update.exe 27 PID 1040 wrote to memory of 1816 1040 Windows Update.exe 27 PID 1040 wrote to memory of 1816 1040 Windows Update.exe 27 PID 1040 wrote to memory of 1816 1040 Windows Update.exe 27 PID 1040 wrote to memory of 1816 1040 Windows Update.exe 27 PID 1816 wrote to memory of 364 1816 Windows Update.exe 32 PID 1816 wrote to memory of 364 1816 Windows Update.exe 32 PID 1816 wrote to memory of 364 1816 Windows Update.exe 32 PID 1816 wrote to memory of 364 1816 Windows Update.exe 32 PID 1816 wrote to memory of 364 1816 Windows Update.exe 32 PID 1816 wrote to memory of 364 1816 Windows Update.exe 32 PID 1816 wrote to memory of 364 1816 Windows Update.exe 32 PID 1816 wrote to memory of 364 1816 Windows Update.exe 32 PID 1816 wrote to memory of 364 1816 Windows Update.exe 32 PID 1816 wrote to memory of 364 1816 Windows Update.exe 32 PID 1816 wrote to memory of 364 1816 Windows Update.exe 32 PID 1816 wrote to memory of 364 1816 Windows Update.exe 32 PID 1816 wrote to memory of 364 1816 Windows Update.exe 32 PID 1816 wrote to memory of 2000 1816 Windows Update.exe 33 PID 1816 wrote to memory of 2000 1816 Windows Update.exe 33 PID 1816 wrote to memory of 2000 1816 Windows Update.exe 33 PID 1816 wrote to memory of 2000 1816 Windows Update.exe 33 PID 1816 wrote to memory of 2000 1816 Windows Update.exe 33 PID 1816 wrote to memory of 2000 1816 Windows Update.exe 33 PID 1816 wrote to memory of 2000 1816 Windows Update.exe 33 PID 1816 wrote to memory of 2000 1816 Windows Update.exe 33 PID 1816 wrote to memory of 2000 1816 Windows Update.exe 33 PID 1816 wrote to memory of 2000 1816 Windows Update.exe 33 PID 1816 wrote to memory of 2000 1816 Windows Update.exe 33 PID 1816 wrote to memory of 2000 1816 Windows Update.exe 33 PID 1816 wrote to memory of 2000 1816 Windows Update.exe 33
Processes
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C:\Users\Admin\AppData\Local\Temp\order05102020.exe"C:\Users\Admin\AppData\Local\Temp\order05102020.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
PID:1044 -
C:\Users\Admin\AppData\Local\Temp\order05102020.exe"C:\Users\Admin\AppData\Local\Temp\order05102020.exe"2⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:1616 -
C:\Users\Admin\AppData\Roaming\Windows Update.exe"C:\Users\Admin\AppData\Roaming\Windows Update.exe"3⤵
- Executes dropped EXE
- Loads dropped DLL
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
PID:1040 -
C:\Users\Admin\AppData\Roaming\Windows Update.exe"C:\Users\Admin\AppData\Roaming\Windows Update.exe"4⤵
- Executes dropped EXE
- Deletes itself
- Loads dropped DLL
- 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
PID:1816 -
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:364
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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:2000
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