Analysis
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max time kernel
148s -
max time network
149s -
platform
windows10-2004_x64 -
resource
win10v2004-20220812-en -
resource tags
arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system -
submitted
30-09-2022 06:16
Static task
static1
Behavioral task
behavioral1
Sample
ESTADO PDF VER.exe
Resource
win7-20220901-en
Behavioral task
behavioral2
Sample
ESTADO PDF VER.exe
Resource
win10v2004-20220812-en
General
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Target
ESTADO PDF VER.exe
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Size
5.6MB
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MD5
ffa29931a560bb75dfe139efad4ca7d5
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SHA1
17bef9ea751eee1ce97e0dce90dd473ae5625ecb
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SHA256
4aa1ce5bc42ed8633df8586392afaec84df54ee37ce8878184f840ddc62879ba
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SHA512
eec1d4e55fa75d8ff49681de82b0bba0a40202df66d54e416929481c9d0e315826c99d8fbee3e72cb580bac45245716faf3d52cf61846055c19ce94f377e3583
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SSDEEP
24576:l+pONDPnta6Y9UfUMSR9iUFqNLcrLfQkF2uU5J9VF/08ixUoNQhGnD58fKj7m+Mp:RVdoLRHY7+UcniP/bAfKlG9r7sb
Malware Config
Extracted
bitrat
1.38
cmwuchisaa.con-ip.com:1880
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communication_password
202cb962ac59075b964b07152d234b70
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install_dir
AppData
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install_file
Discord.exe
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tor_process
tor
Signatures
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Processes:
resource yara_rule behavioral2/memory/4780-143-0x0000000000400000-0x00000000007E4000-memory.dmp upx behavioral2/memory/4780-145-0x0000000000400000-0x00000000007E4000-memory.dmp upx behavioral2/memory/4780-144-0x0000000000400000-0x00000000007E4000-memory.dmp upx behavioral2/memory/4780-146-0x0000000000400000-0x00000000007E4000-memory.dmp upx behavioral2/memory/4780-147-0x0000000000400000-0x00000000007E4000-memory.dmp upx behavioral2/memory/4780-150-0x0000000000400000-0x00000000007E4000-memory.dmp upx -
Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
Processes:
ESTADO PDF VER.exedescription ioc process Key value queried \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\Control Panel\International\Geo\Nation ESTADO PDF VER.exe -
Adds Run key to start application 2 TTPs 8 IoCs
Processes:
InstallUtil.exeESTADO PDF VER.exedescription ioc process Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Discord = "C:\\Users\\Admin\\AppData\\Local\\AppData\\Discord.exe砀" InstallUtil.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Discord = "C:\\Users\\Admin\\AppData\\Local\\AppData\\Discord.exe餀" InstallUtil.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\chrome = "\"C:\\Users\\Admin\\AppData\\Roaming\\Aakqa\\chrome.exe\"" ESTADO PDF VER.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Discord = "C:\\Users\\Admin\\AppData\\Local\\AppData\\Discord.exe" InstallUtil.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Discord = "C:\\Users\\Admin\\AppData\\Local\\AppData\\Discord.exe䜀" InstallUtil.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Discord = "C:\\Users\\Admin\\AppData\\Local\\AppData\\Discord.exe팀" InstallUtil.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Discord = "C:\\Users\\Admin\\AppData\\Local\\AppData\\Discord.exe저" InstallUtil.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Discord = "C:\\Users\\Admin\\AppData\\Local\\AppData\\Discord.exe洀" InstallUtil.exe -
Suspicious use of NtSetInformationThreadHideFromDebugger 4 IoCs
Processes:
InstallUtil.exepid process 4780 InstallUtil.exe 4780 InstallUtil.exe 4780 InstallUtil.exe 4780 InstallUtil.exe -
Suspicious use of SetThreadContext 1 IoCs
Processes:
ESTADO PDF VER.exedescription pid process target process PID 5040 set thread context of 4780 5040 ESTADO PDF VER.exe InstallUtil.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
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Suspicious behavior: EnumeratesProcesses 2 IoCs
Processes:
powershell.exepid process 1264 powershell.exe 1264 powershell.exe -
Suspicious use of AdjustPrivilegeToken 3 IoCs
Processes:
powershell.exeESTADO PDF VER.exeInstallUtil.exedescription pid process Token: SeDebugPrivilege 1264 powershell.exe Token: SeDebugPrivilege 5040 ESTADO PDF VER.exe Token: SeShutdownPrivilege 4780 InstallUtil.exe -
Suspicious use of SetWindowsHookEx 2 IoCs
Processes:
InstallUtil.exepid process 4780 InstallUtil.exe 4780 InstallUtil.exe -
Suspicious use of WriteProcessMemory 10 IoCs
Processes:
ESTADO PDF VER.exedescription pid process target process PID 5040 wrote to memory of 1264 5040 ESTADO PDF VER.exe powershell.exe PID 5040 wrote to memory of 1264 5040 ESTADO PDF VER.exe powershell.exe PID 5040 wrote to memory of 1264 5040 ESTADO PDF VER.exe powershell.exe PID 5040 wrote to memory of 4780 5040 ESTADO PDF VER.exe InstallUtil.exe PID 5040 wrote to memory of 4780 5040 ESTADO PDF VER.exe InstallUtil.exe PID 5040 wrote to memory of 4780 5040 ESTADO PDF VER.exe InstallUtil.exe PID 5040 wrote to memory of 4780 5040 ESTADO PDF VER.exe InstallUtil.exe PID 5040 wrote to memory of 4780 5040 ESTADO PDF VER.exe InstallUtil.exe PID 5040 wrote to memory of 4780 5040 ESTADO PDF VER.exe InstallUtil.exe PID 5040 wrote to memory of 4780 5040 ESTADO PDF VER.exe InstallUtil.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\ESTADO PDF VER.exe"C:\Users\Admin\AppData\Local\Temp\ESTADO PDF VER.exe"1⤵
- Checks computer location settings
- Adds Run key to start application
- Suspicious use of SetThreadContext
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -enc UwB0AGEAcgB0AC0AUwBsAGUAZQBwACAALQBTAGUAYwBvAG4AZABzACAAMQAwAA==2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
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C:\Windows\Microsoft.NET\Framework\v4.0.30319\InstallUtil.exeC:\Windows\Microsoft.NET\Framework\v4.0.30319\InstallUtil.exe2⤵
- Adds Run key to start application
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
Network
MITRE ATT&CK Matrix ATT&CK v6
Replay Monitor
Loading Replay Monitor...
Downloads
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memory/1264-140-0x0000000007C50000-0x00000000082CA000-memory.dmpFilesize
6.5MB
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memory/1264-141-0x0000000006900000-0x000000000691A000-memory.dmpFilesize
104KB
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memory/1264-134-0x0000000000000000-mapping.dmp
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memory/1264-135-0x0000000002E70000-0x0000000002EA6000-memory.dmpFilesize
216KB
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memory/1264-136-0x0000000005580000-0x0000000005BA8000-memory.dmpFilesize
6.2MB
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memory/1264-137-0x0000000005C40000-0x0000000005CA6000-memory.dmpFilesize
408KB
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memory/1264-138-0x0000000005DA0000-0x0000000005E06000-memory.dmpFilesize
408KB
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memory/1264-139-0x00000000063F0000-0x000000000640E000-memory.dmpFilesize
120KB
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memory/4780-142-0x0000000000000000-mapping.dmp
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memory/4780-147-0x0000000000400000-0x00000000007E4000-memory.dmpFilesize
3.9MB
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memory/4780-154-0x0000000074AE0000-0x0000000074B19000-memory.dmpFilesize
228KB
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memory/4780-143-0x0000000000400000-0x00000000007E4000-memory.dmpFilesize
3.9MB
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memory/4780-145-0x0000000000400000-0x00000000007E4000-memory.dmpFilesize
3.9MB
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memory/4780-144-0x0000000000400000-0x00000000007E4000-memory.dmpFilesize
3.9MB
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memory/4780-146-0x0000000000400000-0x00000000007E4000-memory.dmpFilesize
3.9MB
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memory/4780-153-0x0000000074E20000-0x0000000074E59000-memory.dmpFilesize
228KB
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memory/4780-148-0x0000000074E20000-0x0000000074E59000-memory.dmpFilesize
228KB
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memory/4780-149-0x0000000074AE0000-0x0000000074B19000-memory.dmpFilesize
228KB
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memory/4780-150-0x0000000000400000-0x00000000007E4000-memory.dmpFilesize
3.9MB
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memory/4780-151-0x0000000074AE0000-0x0000000074B19000-memory.dmpFilesize
228KB
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memory/4780-152-0x0000000074AE0000-0x0000000074B19000-memory.dmpFilesize
228KB
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memory/5040-133-0x00000000054C0000-0x00000000054E2000-memory.dmpFilesize
136KB
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memory/5040-132-0x0000000000120000-0x00000000006BA000-memory.dmpFilesize
5.6MB