Analysis
- user interaction
yes - max time kernel
299s - max time network
274s - platform
windows10-ltsc_2021_x64 - resource
win10ltsc2021-20260513-en - resource tags
arch:x64arch:x86image:win10ltsc2021-20260513-enlocale:en-usos:windows10-ltsc_2021-x64systemwindows - submitted
19/06/2026, 23:42
Behavioral task
behavioral1
Sample
vzpv0yj4nm6z6ye4.exe
Resource
win10ltsc2021-20260513-en
General
- Target vzpv0yj4nm6z6ye4.exe
- Size 198KB
- Sample260619-3qe5padt21
- SHA256 0db4cda2c691f22a9924aa46cebd1b0f7ce9e4721504deb347243f2340bf5796
- MD5 af78d5c56d8131f7924c108bccd009c0
- SHA1 60bfb30f262144f0b53ba436101797e8c77741b3
- SHA512 cc58fda40f2a0cb809b7e1c7d1d723b7a3b0e8ecf7c27f4e8dc80ab2047ebee497c5d89f9e25bd0160139f509efcdc43aaa5e3b80e89757576bfb216de8a4fe7
- SSDEEP 3072:mmqA30Tl5sJtbsSARusP2b6hLfzk4W6LT6lPJAg+cG+R9DBkMYdTCz1YSObnNenj:nCl6JkusuKi0OlPfh/BOPxbGh
- TLSH T11C14F1C077C09A12EC7E16B993A333905334E1536E42D75F2EDA80D2AF6A3D5991ECE1
- MD5 SHA1 SHA512 SSDEEP TLSH
Malware Config
Extracted
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sheetrat
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anti_virtual
false
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certificate
tg32pbx36hrwx
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exclusion_wd
p4j)l+7lp9h#
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hidden_file
z1c067z@j#aws*pgvazf#14
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key
0edky705o05i3ejgf34dl4p5uzzn
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path_client
@2gg+y22^kcbg&
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path_watch_dog
ydjc@4u*0yj7j*
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pump
6r637x20olf_jpbknre6h1k%
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rootkit
;<WWgvBg;
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task_client
g$71^9!$)fms$
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task_watch_dog
4it**_3@gzp47
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use_install_admin
^$y*y*3i5hj*@
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user_init
kes6@w@yr
Signatures
- Detects Sheetrat Payload 1 IoCs
Sheetrat aka NonEuclid RAT is a trojan written in C#.
resource yara_rule behavioral1/memory/2844-0-0x0000027CE2B60000-0x0000027CE2B96000-memory.dmp family_sheetrat_v1 - Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
description ioc Process Key value queried \REGISTRY\USER\S-1-5-21-1131776342-1023621610-2767477260-1000\Control Panel\International\Geo\Nation vzpv0yj4nm6z6ye4.exe - Executes dropped EXE 3 IoCs
pid Process 500 tmpEF86.tmp.exe 1176 tmpEF86.tmp.exe 2320 tmpEF86.tmp.exe - Adds Run key to start application 2 TTPs 10 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-1131776342-1023621610-2767477260-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\MSEdgeUpdateX = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\tmpEF86.tmp.exe\"" tmpEF86.tmp.exe Set value (str) \REGISTRY\USER\S-1-5-21-1131776342-1023621610-2767477260-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\WIN32_2 = "taskhost.exe" tmpEF86.tmp.exe Set value (str) \REGISTRY\USER\S-1-5-21-1131776342-1023621610-2767477260-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\WIN32_4 = "System.exe" tmpEF86.tmp.exe Set value (str) \REGISTRY\USER\S-1-5-21-1131776342-1023621610-2767477260-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\WIN32_8 = "crypt0rsx.exe" tmpEF86.tmp.exe Set value (str) \REGISTRY\USER\S-1-5-21-1131776342-1023621610-2767477260-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\WindowsInstaller = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\tmpEF86.tmp.exe\" -startup" tmpEF86.tmp.exe Set value (str) \REGISTRY\USER\S-1-5-21-1131776342-1023621610-2767477260-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\WIN32_1 = "AWindowsService.exe" tmpEF86.tmp.exe Set value (str) \REGISTRY\USER\S-1-5-21-1131776342-1023621610-2767477260-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\WIN32_3 = "windowsx-c.exe" tmpEF86.tmp.exe Set value (str) \REGISTRY\USER\S-1-5-21-1131776342-1023621610-2767477260-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\WIN32_5 = "_default64.exe" tmpEF86.tmp.exe Set value (str) \REGISTRY\USER\S-1-5-21-1131776342-1023621610-2767477260-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\WIN32_6 = "native.exe" tmpEF86.tmp.exe Set value (str) \REGISTRY\USER\S-1-5-21-1131776342-1023621610-2767477260-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\WIN32_7 = "ux-cryptor.exe" tmpEF86.tmp.exe - Drops desktop.ini file(s) 4 IoCs
description ioc Process File opened for modification C:\Users\Admin\Documents\desktop.ini attrib.exe File opened for modification C:\Users\Public\Desktop\desktop.ini attrib.exe File opened for modification C:\Users\Admin\Desktop\desktop.ini attrib.exe File opened for modification C:\Users\Admin\Downloads\desktop.ini attrib.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.
flow ioc 10 api.ipify.org 11 api.ipify.org -
pid Process 2516 powershell.exe - Hide Artifacts: Hidden Files and Directories 1 TTPs 6 IoCs
pid Process 4464 cmd.exe 1832 cmd.exe 3240 cmd.exe 1364 cmd.exe 5896 cmd.exe 5928 cmd.exe - Costura .NET executable packer 2 IoCs
Costura packer aka Costura Fody, is an add-in for the .NET framework that embeds all external dependency .dll files as resources inside main executable.
resource yara_rule behavioral1/memory/2844-5-0x0000027C80110000-0x0000027C80188000-memory.dmp costura behavioral1/memory/2844-64-0x0000027C80560000-0x0000027C8057C000-memory.dmp costura - Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
- Checks processor information in registry 2 TTPs 3 IoCs
Processor information is often read in order to detect sandboxing environments.
description ioc Process Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\~MHz wermgr.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString wermgr.exe Key opened \REGISTRY\MACHINE\Hardware\Description\System\CentralProcessor\0 wermgr.exe - Enumerates system info in registry 2 TTPs 2 IoCs
description ioc Process Key opened \REGISTRY\MACHINE\Hardware\Description\System\BIOS wermgr.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemSKU wermgr.exe - Kills process with taskkill 1 IoCs
pid Process 5220 taskkill.exe - Suspicious behavior: EnumeratesProcesses 3 IoCs
pid Process 2516 powershell.exe 2516 powershell.exe 500 tmpEF86.tmp.exe - Suspicious use of AdjustPrivilegeToken 5 IoCs
description pid Process Token: SeDebugPrivilege 2844 vzpv0yj4nm6z6ye4.exe Token: SeIncBasePriorityPrivilege 2844 vzpv0yj4nm6z6ye4.exe Token: SeDebugPrivilege 2516 powershell.exe Token: SeDebugPrivilege 500 tmpEF86.tmp.exe Token: SeDebugPrivilege 5220 taskkill.exe - Suspicious use of WriteProcessMemory 22 IoCs
description pid Process procid_target PID 2844 wrote to memory of 224 2844 vzpv0yj4nm6z6ye4.exe 102 PID 224 wrote to memory of 2516 224 cmd.exe 104 PID 2516 wrote to memory of 500 2516 powershell.exe 105 PID 500 wrote to memory of 5928 500 tmpEF86.tmp.exe 107 PID 500 wrote to memory of 5896 500 tmpEF86.tmp.exe 108 PID 500 wrote to memory of 1364 500 tmpEF86.tmp.exe 109 PID 500 wrote to memory of 3240 500 tmpEF86.tmp.exe 110 PID 500 wrote to memory of 1832 500 tmpEF86.tmp.exe 111 PID 500 wrote to memory of 4464 500 tmpEF86.tmp.exe 112 PID 500 wrote to memory of 5220 500 tmpEF86.tmp.exe 113 PID 1364 wrote to memory of 5428 1364 cmd.exe 131 PID 4464 wrote to memory of 3756 4464 cmd.exe 132 PID 5928 wrote to memory of 5764 5928 cmd.exe 133 PID 1832 wrote to memory of 4056 1832 cmd.exe 134 PID 5896 wrote to memory of 5768 5896 cmd.exe 135 PID 3240 wrote to memory of 5908 3240 cmd.exe 136 PID 1364 wrote to memory of 3744 1364 cmd.exe 139 PID 5896 wrote to memory of 5952 5896 cmd.exe 140 PID 3240 wrote to memory of 392 3240 cmd.exe 141 PID 1832 wrote to memory of 3668 1832 cmd.exe 142 PID 4464 wrote to memory of 2808 4464 cmd.exe 143 PID 5928 wrote to memory of 3360 5928 cmd.exe 144 - Views/modifies file attributes 1 TTPs 12 IoCs
pid Process 5908 attrib.exe 5952 attrib.exe 3360 attrib.exe 3756 attrib.exe 3744 attrib.exe 392 attrib.exe 3668 attrib.exe 2808 attrib.exe 5428 attrib.exe 5764 attrib.exe 5768 attrib.exe 4056 attrib.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\vzpv0yj4nm6z6ye4.exe"C:\Users\Admin\AppData\Local\Temp\vzpv0yj4nm6z6ye4.exe"1⤵
- Checks computer location settings
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2844 -
C:\Windows\System32\cmd.exe"C:\Windows\System32\cmd.exe" /c start /b powershell –ExecutionPolicy Bypass Start-Process -FilePath '"C:\Users\Admin\AppData\Local\Temp\tmpEF86.tmp.exe"' & exit2⤵
- Suspicious use of WriteProcessMemory
PID:224 -
C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exepowershell –ExecutionPolicy Bypass Start-Process -FilePath '"C:\Users\Admin\AppData\Local\Temp\tmpEF86.tmp.exe"'3⤵
- Command and Scripting Interpreter: PowerShell
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2516 -
C:\Users\Admin\AppData\Local\Temp\tmpEF86.tmp.exe"C:\Users\Admin\AppData\Local\Temp\tmpEF86.tmp.exe"4⤵
- Executes dropped EXE
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:500 -
C:\Windows\SYSTEM32\cmd.execmd.exe /c F: & attrib +h +s +r +i /D & echo [%RANDOM%] Ooops! Your files are encrypted! Telegram for contact: @123123 1>info-Locker.txt & attrib -h +s +r info-Locker.txt5⤵
- Hide Artifacts: Hidden Files and Directories
- Suspicious use of WriteProcessMemory
PID:5928 -
C:\Windows\system32\attrib.exeattrib +h +s +r +i /D6⤵
- Views/modifies file attributes
PID:5764
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C:\Windows\system32\attrib.exeattrib -h +s +r info-Locker.txt6⤵
- Views/modifies file attributes
PID:3360
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C:\Windows\SYSTEM32\cmd.execmd.exe /c cd "%userprofile%\desktop"&attrib +h +s +r +i /D & echo [%RANDOM%] Ooops! Your files are encrypted! Telegram for contact: @123123 1>info-Locker.txt & attrib -h +s +r info-Locker.txt5⤵
- Hide Artifacts: Hidden Files and Directories
- Suspicious use of WriteProcessMemory
PID:5896 -
C:\Windows\system32\attrib.exeattrib +h +s +r +i /D6⤵
- Drops desktop.ini file(s)
- Views/modifies file attributes
PID:5768
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C:\Windows\system32\attrib.exeattrib -h +s +r info-Locker.txt6⤵
- Views/modifies file attributes
PID:5952
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C:\Windows\SYSTEM32\cmd.execmd.exe /c cd "%systemdrive%\Users\Public\Desktop"&attrib +h +s +r +i /D & echo [%RANDOM%] Ooops! Your files are encrypted! Telegram for contact: @123123 1>info-Locker.txt & attrib -h +s +r info-Locker.txt5⤵
- Hide Artifacts: Hidden Files and Directories
- Suspicious use of WriteProcessMemory
PID:1364 -
C:\Windows\system32\attrib.exeattrib +h +s +r +i /D6⤵
- Drops desktop.ini file(s)
- Views/modifies file attributes
PID:5428
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C:\Windows\system32\attrib.exeattrib -h +s +r info-Locker.txt6⤵
- Views/modifies file attributes
PID:3744
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C:\Windows\SYSTEM32\cmd.execmd.exe /c cd "%userprofile%\downloads"&attrib +h +s +r +i /D & echo [%RANDOM%] Ooops! Your files are encrypted! Telegram for contact: @123123 1>info-Locker.txt & attrib -h +s +r info-Locker.txt5⤵
- Hide Artifacts: Hidden Files and Directories
- Suspicious use of WriteProcessMemory
PID:3240 -
C:\Windows\system32\attrib.exeattrib +h +s +r +i /D6⤵
- Drops desktop.ini file(s)
- Views/modifies file attributes
PID:5908
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C:\Windows\system32\attrib.exeattrib -h +s +r info-Locker.txt6⤵
- Views/modifies file attributes
PID:392
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C:\Windows\SYSTEM32\cmd.execmd.exe /c cd "%userprofile%\documents"&attrib +h +s +r +i /D & echo [%RANDOM%] Ooops! Your files are encrypted! Telegram for contact: @123123 1>info-Locker.txt & attrib -h +s +r info-Locker.txt5⤵
- Hide Artifacts: Hidden Files and Directories
- Suspicious use of WriteProcessMemory
PID:1832 -
C:\Windows\system32\attrib.exeattrib +h +s +r +i /D6⤵
- Drops desktop.ini file(s)
- Views/modifies file attributes
PID:4056
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C:\Windows\system32\attrib.exeattrib -h +s +r info-Locker.txt6⤵
- Views/modifies file attributes
PID:3668
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C:\Windows\SYSTEM32\cmd.execmd.exe /c cd "%userprofile%"&attrib +h +s +r +i /D & echo [%RANDOM%] Ooops! Your files are encrypted! Telegram for contact: @123123 1>info-Locker.txt & attrib -h +s +r info-Locker.txt5⤵
- Hide Artifacts: Hidden Files and Directories
- Suspicious use of WriteProcessMemory
PID:4464 -
C:\Windows\system32\attrib.exeattrib +h +s +r +i /D6⤵
- Views/modifies file attributes
PID:3756
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C:\Windows\system32\attrib.exeattrib -h +s +r info-Locker.txt6⤵
- Views/modifies file attributes
PID:2808
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C:\Windows\SYSTEM32\taskkill.exetaskkill.exe /im Explorer.exe /f5⤵
- Kills process with taskkill
- Suspicious use of AdjustPrivilegeToken
PID:5220
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C:\Windows\system32\wermgr.exe"C:\Windows\system32\wermgr.exe" "-outproc" "0" "3364" "2328" "2248" "2332" "0" "0" "0" "0" "0" "0" "0" "0"1⤵
- Checks processor information in registry
- Enumerates system info in registry
PID:3532
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C:\Windows\system32\AUDIODG.EXEC:\Windows\system32\AUDIODG.EXE 0x394 0x3801⤵PID:5680
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C:\Users\Admin\AppData\Local\Temp\tmpEF86.tmp.exe"C:\Users\Admin\AppData\Local\Temp\tmpEF86.tmp.exe" -startup1⤵
- Executes dropped EXE
PID:1176
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C:\Users\Admin\AppData\Local\Temp\tmpEF86.tmp.exe"C:\Users\Admin\AppData\Local\Temp\tmpEF86.tmp.exe"1⤵
- Executes dropped EXE
PID:2320
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
- Path C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0\UsageLogs\tmpEF86.tmp.exe.log
- Size 1KB
- SHA256 77071d2e1fdfc305512f111f44cebf7231f696c3bed3cdf5fd369b4485330d9c
- MD5 b2385a5c9864a22996a735d92ea0bbea
- SHA1 6102095de817c5118b2daff432176cb1a6c31e70
- SHA512 9e4b1da35348bc9e047334082a56a765d8dbcbd86594818f1dddbc46fbb6279f4389333d6fd2567466f948d1f62f0af343e48474c98c0d148f4e27ae8a2a2816
- TLSH T1D531DC7022B6B1D889023F470C6D29C417BF4329B560AE0CBAA8525EDD2B0175F323F3
- MD5 SHA1 SHA512 TLSH
- Path C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_fl0kpce0.b2e.ps1
- Size 60B
- SHA256 96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
- MD5 d17fe0a3f47be24a6453e9ef58c94641
- SHA1 6ab83620379fc69f80c0242105ddffd7d98d5d9d
- SHA512 5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82
- TLSH T177A02228CC303B200020C0080A000002C00B800C080C8C0220000A00B20B820002F080
- MD5 SHA1 SHA512 TLSH
- Path C:\Users\Admin\AppData\Local\Temp\tmpEF86.tmp.exe
- Size 212KB
- SHA256 20414941c886b8bfbc4cff8864351f877a6b4835b632f5636788adda59a618a2
- MD5 dcb5e1789ddb4d9da246c449a4abaf94
- SHA1 84d67878827bf216b5003706e402843109416f13
- SHA512 71bff2bc5947b4c7864a4b13564e221a74f473eb71f61a8f41173b6b904d743cab06c291cf3ec3b7bb794da76741fbbba4c089d1a588685819088d71ace6b1c9
- SSDEEP 3072:Qarwffnsk6OZdwrAH3q2nQEtQ0UHNoW/4pwQSCpMW90KImQiO7be6snKGqtX:effZPnRtQ0UOWA7SCpMW90KImQiO7bR
- TLSH T1A7244B88136F8D3ED2AF4B79E0B1630643F8A3279653F74E6CE5D8995E673418A00B53
- MD5 SHA1 SHA512 SSDEEP TLSH
- Path C:\Users\Admin\Desktop\locker_debug.txt
- Size 765B
- SHA256 d65df02a302881490808ef9dc36bc5f88ba188f2a1feaadb08897bb0d94e11d3
- MD5 a61a7d781dd981b09f25568e748aa7b6
- SHA1 6ea1c5719775a79367573ff3b0f7bdf9572a6be0
- SHA512 13d4bb91237eef29be6494a46c25d6c693a33aa720f233c6b0f2e2dd76ddd9d7542892d58794d0e68c14e91bd6b5b59213e2d35872c6f8618291517935b09177
- TLSH T1FB015E47C1D98EED029B626F68CD0A04AE8526390102C55FFA09C85C7F6C59A096EF71
- MD5 SHA1 SHA512 TLSH
- Path C:\Users\Public\Desktop\info-Locker.txt
- Size 73B
- SHA256 9ab23a296ed143466baae10d307e4c769b9dd83f5ba9acf3eb080f8a1c401c1a
- MD5 af5394e984347b02fa22016afa6fca1d
- SHA1 941f9d5fa6260244b70fbe3d49a2e2a08b1d9d74
- SHA512 d5cd5bdfab1ad2db0463f8a350f7cfe161b01e0553d093b85d1262161dc323f86b71bf8268de6ec0e176561d8f05a17d0f5486246b4160e756423e03d86f619d
- TLSH T152A022C03CAC3AC8200020F33832B220A8BEECCE30032CC2030020A300A08C82AEFC20
- MD5 SHA1 SHA512 TLSH