Analysis
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max time kernel
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max time network
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platform
windows10-2004_x64 -
resource
win10v2004-20240508-en -
resource tags
arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system -
submitted
11-05-2024 01:27
Static task
static1
Behavioral task
behavioral1
Sample
68ba175a6363ed62824fb066933974588127b63d007f00b9f147845cebae45db.js
Resource
win7-20240221-en
General
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Target
68ba175a6363ed62824fb066933974588127b63d007f00b9f147845cebae45db.js
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Size
346KB
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MD5
6e5f677f16815e0933d379f50581bea6
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SHA1
2f5416c1927fb6b81241bb96eee69befa31b55f9
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SHA256
68ba175a6363ed62824fb066933974588127b63d007f00b9f147845cebae45db
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SHA512
727919e1be0223607964997a6951c6d117ef51c9eca4cb38de9834f7e7dd56eaa5bd0aafb6f3a9774103c8d9fc0bc155f9fa09abf2416e773673e77ba62548ff
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SSDEEP
6144:VqawNPADGrly8y0L5+zf+S1gWpfu61c74xBBKLrUei1nOb+qgJHOAPk4YEUV18E:oNPAyobfu6A5rTb+TXPrwl
Malware Config
Signatures
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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-1-5-21-4124900551-4068476067-3491212533-1000\Control Panel\International\Geo\Nation wscript.exe -
Drops startup file 1 IoCs
description ioc Process File created C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\korboiwlv.txt java.exe -
Loads dropped DLL 1 IoCs
pid Process 2524 java.exe -
Modifies file permissions 1 TTPs 1 IoCs
pid Process 4476 icacls.exe -
Adds Run key to start application 2 TTPs 2 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-4124900551-4068476067-3491212533-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\korboiwlv = "\"C:\\Users\\Admin\\AppData\\Roaming\\korboiwlv.txt\"" java.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\korboiwlv = "\"C:\\Users\\Admin\\AppData\\Roaming\\korboiwlv.txt\"" java.exe -
Looks up external IP address via web service 1 IoCs
Uses a legitimate IP lookup service to find the infected system's external IP.
flow ioc 29 ip-api.com -
Command and Scripting Interpreter: JavaScript 1 TTPs
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Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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Creates scheduled task(s) 1 TTPs 1 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
pid Process 4056 schtasks.exe -
Suspicious use of AdjustPrivilegeToken 64 IoCs
description pid Process Token: SeIncreaseQuotaPrivilege 4772 WMIC.exe Token: SeSecurityPrivilege 4772 WMIC.exe Token: SeTakeOwnershipPrivilege 4772 WMIC.exe Token: SeLoadDriverPrivilege 4772 WMIC.exe Token: SeSystemProfilePrivilege 4772 WMIC.exe Token: SeSystemtimePrivilege 4772 WMIC.exe Token: SeProfSingleProcessPrivilege 4772 WMIC.exe Token: SeIncBasePriorityPrivilege 4772 WMIC.exe Token: SeCreatePagefilePrivilege 4772 WMIC.exe Token: SeBackupPrivilege 4772 WMIC.exe Token: SeRestorePrivilege 4772 WMIC.exe Token: SeShutdownPrivilege 4772 WMIC.exe Token: SeDebugPrivilege 4772 WMIC.exe Token: SeSystemEnvironmentPrivilege 4772 WMIC.exe Token: SeRemoteShutdownPrivilege 4772 WMIC.exe Token: SeUndockPrivilege 4772 WMIC.exe Token: SeManageVolumePrivilege 4772 WMIC.exe Token: 33 4772 WMIC.exe Token: 34 4772 WMIC.exe Token: 35 4772 WMIC.exe Token: 36 4772 WMIC.exe Token: SeIncreaseQuotaPrivilege 4772 WMIC.exe Token: SeSecurityPrivilege 4772 WMIC.exe Token: SeTakeOwnershipPrivilege 4772 WMIC.exe Token: SeLoadDriverPrivilege 4772 WMIC.exe Token: SeSystemProfilePrivilege 4772 WMIC.exe Token: SeSystemtimePrivilege 4772 WMIC.exe Token: SeProfSingleProcessPrivilege 4772 WMIC.exe Token: SeIncBasePriorityPrivilege 4772 WMIC.exe Token: SeCreatePagefilePrivilege 4772 WMIC.exe Token: SeBackupPrivilege 4772 WMIC.exe Token: SeRestorePrivilege 4772 WMIC.exe Token: SeShutdownPrivilege 4772 WMIC.exe Token: SeDebugPrivilege 4772 WMIC.exe Token: SeSystemEnvironmentPrivilege 4772 WMIC.exe Token: SeRemoteShutdownPrivilege 4772 WMIC.exe Token: SeUndockPrivilege 4772 WMIC.exe Token: SeManageVolumePrivilege 4772 WMIC.exe Token: 33 4772 WMIC.exe Token: 34 4772 WMIC.exe Token: 35 4772 WMIC.exe Token: 36 4772 WMIC.exe Token: SeIncreaseQuotaPrivilege 2208 WMIC.exe Token: SeSecurityPrivilege 2208 WMIC.exe Token: SeTakeOwnershipPrivilege 2208 WMIC.exe Token: SeLoadDriverPrivilege 2208 WMIC.exe Token: SeSystemProfilePrivilege 2208 WMIC.exe Token: SeSystemtimePrivilege 2208 WMIC.exe Token: SeProfSingleProcessPrivilege 2208 WMIC.exe Token: SeIncBasePriorityPrivilege 2208 WMIC.exe Token: SeCreatePagefilePrivilege 2208 WMIC.exe Token: SeBackupPrivilege 2208 WMIC.exe Token: SeRestorePrivilege 2208 WMIC.exe Token: SeShutdownPrivilege 2208 WMIC.exe Token: SeDebugPrivilege 2208 WMIC.exe Token: SeSystemEnvironmentPrivilege 2208 WMIC.exe Token: SeRemoteShutdownPrivilege 2208 WMIC.exe Token: SeUndockPrivilege 2208 WMIC.exe Token: SeManageVolumePrivilege 2208 WMIC.exe Token: 33 2208 WMIC.exe Token: 34 2208 WMIC.exe Token: 35 2208 WMIC.exe Token: 36 2208 WMIC.exe Token: SeIncreaseQuotaPrivilege 2208 WMIC.exe -
Suspicious use of WriteProcessMemory 28 IoCs
description pid Process procid_target PID 1724 wrote to memory of 1984 1724 wscript.exe 82 PID 1724 wrote to memory of 1984 1724 wscript.exe 82 PID 1984 wrote to memory of 4476 1984 javaw.exe 85 PID 1984 wrote to memory of 4476 1984 javaw.exe 85 PID 1984 wrote to memory of 1800 1984 javaw.exe 91 PID 1984 wrote to memory of 1800 1984 javaw.exe 91 PID 1800 wrote to memory of 4288 1800 java.exe 93 PID 1800 wrote to memory of 4288 1800 java.exe 93 PID 1800 wrote to memory of 2524 1800 java.exe 94 PID 1800 wrote to memory of 2524 1800 java.exe 94 PID 4288 wrote to memory of 4056 4288 cmd.exe 97 PID 4288 wrote to memory of 4056 4288 cmd.exe 97 PID 2524 wrote to memory of 4160 2524 java.exe 98 PID 2524 wrote to memory of 4160 2524 java.exe 98 PID 4160 wrote to memory of 4772 4160 cmd.exe 100 PID 4160 wrote to memory of 4772 4160 cmd.exe 100 PID 2524 wrote to memory of 2520 2524 java.exe 102 PID 2524 wrote to memory of 2520 2524 java.exe 102 PID 2520 wrote to memory of 2208 2520 cmd.exe 104 PID 2520 wrote to memory of 2208 2520 cmd.exe 104 PID 2524 wrote to memory of 4968 2524 java.exe 105 PID 2524 wrote to memory of 4968 2524 java.exe 105 PID 4968 wrote to memory of 2704 4968 cmd.exe 107 PID 4968 wrote to memory of 2704 4968 cmd.exe 107 PID 2524 wrote to memory of 5008 2524 java.exe 108 PID 2524 wrote to memory of 5008 2524 java.exe 108 PID 5008 wrote to memory of 4524 5008 cmd.exe 110 PID 5008 wrote to memory of 4524 5008 cmd.exe 110 -
Uses Task Scheduler COM API 1 TTPs
The Task Scheduler COM API can be used to schedule applications to run on boot or at set times.
Processes
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C:\Windows\system32\wscript.exewscript.exe C:\Users\Admin\AppData\Local\Temp\68ba175a6363ed62824fb066933974588127b63d007f00b9f147845cebae45db.js1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:1724 -
C:\Program Files\Java\jre-1.8\bin\javaw.exe"C:\Program Files\Java\jre-1.8\bin\javaw.exe" -jar "C:\Users\Admin\AppData\Roaming\korboiwlv.txt"2⤵
- Suspicious use of WriteProcessMemory
PID:1984 -
C:\Windows\system32\icacls.exeC:\Windows\system32\icacls.exe C:\ProgramData\Oracle\Java\.oracle_jre_usage /grant "everyone":(OI)(CI)M3⤵
- Modifies file permissions
PID:4476
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C:\Program Files\Java\jre-1.8\bin\java.exe"C:\Program Files\Java\jre-1.8\bin\java.exe" -jar "C:\Users\Admin\korboiwlv.txt"3⤵
- Drops startup file
- Adds Run key to start application
- Suspicious use of WriteProcessMemory
PID:1800 -
C:\Windows\SYSTEM32\cmd.execmd /c schtasks /create /sc minute /mo 30 /tn Skype /tr "C:\Users\Admin\AppData\Roaming\korboiwlv.txt"4⤵
- Suspicious use of WriteProcessMemory
PID:4288 -
C:\Windows\system32\schtasks.exeschtasks /create /sc minute /mo 30 /tn Skype /tr "C:\Users\Admin\AppData\Roaming\korboiwlv.txt"5⤵
- Creates scheduled task(s)
PID:4056
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C:\Program Files\Java\jre-1.8\bin\java.exe"C:\Program Files\Java\jre-1.8\bin\java.exe" -jar "C:\Users\Admin\AppData\Roaming\korboiwlv.txt"4⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2524 -
C:\Windows\SYSTEM32\cmd.execmd.exe /c "wmic /node:. /namespace:'\\root\cimv2' path win32_logicaldisk get volumeserialnumber /format:list"5⤵
- Suspicious use of WriteProcessMemory
PID:4160 -
C:\Windows\System32\Wbem\WMIC.exewmic /node:. /namespace:'\\root\cimv2' path win32_logicaldisk get volumeserialnumber /format:list6⤵
- Suspicious use of AdjustPrivilegeToken
PID:4772
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C:\Windows\SYSTEM32\cmd.execmd.exe /c "wmic /node:. /namespace:'\\root\cimv2' path win32_operatingsystem get caption,OSArchitecture /format:list"5⤵
- Suspicious use of WriteProcessMemory
PID:2520 -
C:\Windows\System32\Wbem\WMIC.exewmic /node:. /namespace:'\\root\cimv2' path win32_operatingsystem get caption,OSArchitecture /format:list6⤵
- Suspicious use of AdjustPrivilegeToken
PID:2208
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C:\Windows\SYSTEM32\cmd.execmd.exe /c "wmic /node:. /namespace:'\\root\cimv2' path win32_operatingsystem get version /format:list"5⤵
- Suspicious use of WriteProcessMemory
PID:4968 -
C:\Windows\System32\Wbem\WMIC.exewmic /node:. /namespace:'\\root\cimv2' path win32_operatingsystem get version /format:list6⤵PID:2704
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C:\Windows\SYSTEM32\cmd.execmd.exe /c "wmic /node:localhost /namespace:'\\root\securitycenter2' path antivirusproduct get displayname /format:list"5⤵
- Suspicious use of WriteProcessMemory
PID:5008 -
C:\Windows\System32\Wbem\WMIC.exewmic /node:localhost /namespace:'\\root\securitycenter2' path antivirusproduct get displayname /format:list6⤵PID:4524
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
Loading Replay Monitor...
Downloads
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Filesize
46B
MD5ae83c0dbafdeacafca0af37186a3913c
SHA14f025168d5403986755b357d8f2d580346518c2e
SHA25618c62b0a6afb857b2c8858a0f16cc90117c582d50c90a349e66a4f9a156de082
SHA512f1e527e1bc0070de30d05ae9ce91246beefe5c66092a0939b38826ff200c9677d21d6c969b386fb4eaa2fdd7f36dc8d7d9a602399387864b3de7ad12f968d4f1
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Filesize
241KB
MD5e02979ecd43bcc9061eb2b494ab5af50
SHA13122ac0e751660f646c73b10c4f79685aa65c545
SHA256a66959bec2ef5af730198db9f3b3f7cab0d4ae70ce01bec02bf1d738e6d1ee7a
SHA5121e6f7dcb6a557c9b896412a48dd017c16f7a52fa2b9ab513593c9ecd118e86083979821ca7a3e2f098ee349200c823c759cec6599740dd391cb5f354dc29b372
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C:\Users\Admin\AppData\Roaming\Microsoft\Crypto\RSA\S-1-5-21-4124900551-4068476067-3491212533-1000\83aa4cc77f591dfc2374580bbd95f6ba_310807ab-751f-4d81-ae09-b202eaf21e19
Filesize45B
MD5c8366ae350e7019aefc9d1e6e6a498c6
SHA15731d8a3e6568a5f2dfbbc87e3db9637df280b61
SHA25611e6aca8e682c046c83b721eeb5c72c5ef03cb5936c60df6f4993511ddc61238
SHA51233c980d5a638bfc791de291ebf4b6d263b384247ab27f261a54025108f2f85374b579a026e545f81395736dd40fa4696f2163ca17640dd47f1c42bc9971b18cd
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Filesize
164KB
MD56f59762675a1043ce3d52145c4fca3b5
SHA1e98851b70a4f1b413599ed7e848d4128d66f7d16
SHA25619a1796f53aed8daf769cb5adc2fdec81bd3cd7b6f5a3a746bd41c97e1eea44c
SHA512067c3d2e9c931cee28c0f5bf63fa0cc3a66b0060b23316aee8320a4383e54bcdd69d97bc7d29423249ff6e711ef7c05f246d689529663c18c00d11bb61742d00
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Filesize
1.4MB
MD5acfb5b5fd9ee10bf69497792fd469f85
SHA10e0845217c4907822403912ad6828d8e0b256208
SHA256b308faebfe4ed409de8410e0a632d164b2126b035f6eacff968d3908cafb4d9e
SHA512e52575f58a195ceb3bd16b9740eadf5bc5b1d4d63c0734e8e5fd1d1776aa2d068d2e4c7173b83803f95f72c0a6759ae1c9b65773c734250d4cfcdf47a19f82aa
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Filesize
2.6MB
MD52f4a99c2758e72ee2b59a73586a2322f
SHA1af38e7c4d0fc73c23ecd785443705bfdee5b90bf
SHA25624d81621f82ac29fcdd9a74116031f5907a2343158e616f4573bbfa2434ae0d5
SHA512b860459a0d3bf7ccb600a03aa1d2ac0358619ee89b2b96ed723541e182b6fdab53aefef7992acb4e03fca67aa47cbe3907b1e6060a60b57ed96c4e00c35c7494
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Filesize
4.1MB
MD5b33387e15ab150a7bf560abdc73c3bec
SHA166b8075784131f578ef893fd7674273f709b9a4c
SHA2562eae3dea1c3dde6104c49f9601074b6038ff6abcf3be23f4b56f6720a4f6a491
SHA51225cfb0d6ce35d0bcb18527d3aa12c63ecb2d9c1b8b78805d1306e516c13480b79bb0d74730aa93bd1752f9ac2da9fdd51781c48844cea2fd52a06c62852c8279
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Filesize
772KB
MD5e1aa38a1e78a76a6de73efae136cdb3a
SHA1c463da71871f780b2e2e5dba115d43953b537daf
SHA2562ddda8af6faef8bde46acf43ec546603180bcf8dcb2e5591fff8ac9cd30b5609
SHA512fee16fe9364926ec337e52f551fd62ed81984808a847de2fd68ff29b6c5da0dcc04ef6d8977f0fe675662a7d2ea1065cdcdd2a5259446226a7c7c5516bd7d60d