Analysis
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max time kernel
148s -
max time network
153s -
platform
windows10-2004_x64 -
resource
win10v2004-20240508-en -
resource tags
arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system -
submitted
08-06-2024 08:16
Static task
static1
Behavioral task
behavioral1
Sample
db428540c47e953c334f9374c2b1ad7ac3dec8904edddbaef7da7cceb599a5f5.jar
Resource
win7-20240221-en
Behavioral task
behavioral2
Sample
db428540c47e953c334f9374c2b1ad7ac3dec8904edddbaef7da7cceb599a5f5.jar
Resource
win10v2004-20240508-en
General
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Target
db428540c47e953c334f9374c2b1ad7ac3dec8904edddbaef7da7cceb599a5f5.jar
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Size
452KB
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MD5
b863903234d42638a8c23da983521741
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SHA1
c36e2e31e51ce16dcf7e14256f95dd79754bd69d
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SHA256
db428540c47e953c334f9374c2b1ad7ac3dec8904edddbaef7da7cceb599a5f5
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SHA512
1be7f49a77c589ac76f49a4f33f173559a73113449a19b839462a2ca056f4d008c2d3ecf24f69176feb4550d40a09e3ff1e5abeef9d126d464e4d1d56d69c90e
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SSDEEP
12288:yU2rzFThSTrH/MrsnYQSGrobc1T4BMhLQqIZTf6q:ezFThOrfewqKobc14BMhLQq8z/
Malware Config
Signatures
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Drops startup file 1 IoCs
description ioc Process File created C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\db428540c47e953c334f9374c2b1ad7ac3dec8904edddbaef7da7cceb599a5f5.jar java.exe -
Loads dropped DLL 1 IoCs
pid Process 4412 java.exe -
Modifies file permissions 1 TTPs 1 IoCs
pid Process 4632 icacls.exe -
Adds Run key to start application 2 TTPs 2 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-3558294865-3673844354-2255444939-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\db428540c47e953c334f9374c2b1ad7ac3dec8904edddbaef7da7cceb599a5f5 = "\"C:\\Program Files\\Java\\jre-1.8\\bin\\javaw.exe\" -jar \"C:\\Users\\Admin\\AppData\\Roaming\\db428540c47e953c334f9374c2b1ad7ac3dec8904edddbaef7da7cceb599a5f5.jar\"" java.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\db428540c47e953c334f9374c2b1ad7ac3dec8904edddbaef7da7cceb599a5f5 = "\"C:\\Program Files\\Java\\jre-1.8\\bin\\javaw.exe\" -jar \"C:\\Users\\Admin\\AppData\\Roaming\\db428540c47e953c334f9374c2b1ad7ac3dec8904edddbaef7da7cceb599a5f5.jar\"" 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 30 ip-api.com -
Creates scheduled task(s) 1 TTPs 1 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
pid Process 372 schtasks.exe -
Suspicious use of AdjustPrivilegeToken 64 IoCs
description pid Process Token: SeIncreaseQuotaPrivilege 4836 WMIC.exe Token: SeSecurityPrivilege 4836 WMIC.exe Token: SeTakeOwnershipPrivilege 4836 WMIC.exe Token: SeLoadDriverPrivilege 4836 WMIC.exe Token: SeSystemProfilePrivilege 4836 WMIC.exe Token: SeSystemtimePrivilege 4836 WMIC.exe Token: SeProfSingleProcessPrivilege 4836 WMIC.exe Token: SeIncBasePriorityPrivilege 4836 WMIC.exe Token: SeCreatePagefilePrivilege 4836 WMIC.exe Token: SeBackupPrivilege 4836 WMIC.exe Token: SeRestorePrivilege 4836 WMIC.exe Token: SeShutdownPrivilege 4836 WMIC.exe Token: SeDebugPrivilege 4836 WMIC.exe Token: SeSystemEnvironmentPrivilege 4836 WMIC.exe Token: SeRemoteShutdownPrivilege 4836 WMIC.exe Token: SeUndockPrivilege 4836 WMIC.exe Token: SeManageVolumePrivilege 4836 WMIC.exe Token: 33 4836 WMIC.exe Token: 34 4836 WMIC.exe Token: 35 4836 WMIC.exe Token: 36 4836 WMIC.exe Token: SeIncreaseQuotaPrivilege 4836 WMIC.exe Token: SeSecurityPrivilege 4836 WMIC.exe Token: SeTakeOwnershipPrivilege 4836 WMIC.exe Token: SeLoadDriverPrivilege 4836 WMIC.exe Token: SeSystemProfilePrivilege 4836 WMIC.exe Token: SeSystemtimePrivilege 4836 WMIC.exe Token: SeProfSingleProcessPrivilege 4836 WMIC.exe Token: SeIncBasePriorityPrivilege 4836 WMIC.exe Token: SeCreatePagefilePrivilege 4836 WMIC.exe Token: SeBackupPrivilege 4836 WMIC.exe Token: SeRestorePrivilege 4836 WMIC.exe Token: SeShutdownPrivilege 4836 WMIC.exe Token: SeDebugPrivilege 4836 WMIC.exe Token: SeSystemEnvironmentPrivilege 4836 WMIC.exe Token: SeRemoteShutdownPrivilege 4836 WMIC.exe Token: SeUndockPrivilege 4836 WMIC.exe Token: SeManageVolumePrivilege 4836 WMIC.exe Token: 33 4836 WMIC.exe Token: 34 4836 WMIC.exe Token: 35 4836 WMIC.exe Token: 36 4836 WMIC.exe Token: SeIncreaseQuotaPrivilege 2900 WMIC.exe Token: SeSecurityPrivilege 2900 WMIC.exe Token: SeTakeOwnershipPrivilege 2900 WMIC.exe Token: SeLoadDriverPrivilege 2900 WMIC.exe Token: SeSystemProfilePrivilege 2900 WMIC.exe Token: SeSystemtimePrivilege 2900 WMIC.exe Token: SeProfSingleProcessPrivilege 2900 WMIC.exe Token: SeIncBasePriorityPrivilege 2900 WMIC.exe Token: SeCreatePagefilePrivilege 2900 WMIC.exe Token: SeBackupPrivilege 2900 WMIC.exe Token: SeRestorePrivilege 2900 WMIC.exe Token: SeShutdownPrivilege 2900 WMIC.exe Token: SeDebugPrivilege 2900 WMIC.exe Token: SeSystemEnvironmentPrivilege 2900 WMIC.exe Token: SeRemoteShutdownPrivilege 2900 WMIC.exe Token: SeUndockPrivilege 2900 WMIC.exe Token: SeManageVolumePrivilege 2900 WMIC.exe Token: 33 2900 WMIC.exe Token: 34 2900 WMIC.exe Token: 35 2900 WMIC.exe Token: 36 2900 WMIC.exe Token: SeIncreaseQuotaPrivilege 2900 WMIC.exe -
Suspicious use of WriteProcessMemory 26 IoCs
description pid Process procid_target PID 2764 wrote to memory of 4632 2764 java.exe 84 PID 2764 wrote to memory of 4632 2764 java.exe 84 PID 2764 wrote to memory of 3636 2764 java.exe 91 PID 2764 wrote to memory of 3636 2764 java.exe 91 PID 3636 wrote to memory of 5024 3636 java.exe 94 PID 3636 wrote to memory of 5024 3636 java.exe 94 PID 3636 wrote to memory of 4412 3636 java.exe 96 PID 3636 wrote to memory of 4412 3636 java.exe 96 PID 5024 wrote to memory of 372 5024 cmd.exe 98 PID 5024 wrote to memory of 372 5024 cmd.exe 98 PID 4412 wrote to memory of 3504 4412 java.exe 99 PID 4412 wrote to memory of 3504 4412 java.exe 99 PID 3504 wrote to memory of 4836 3504 cmd.exe 101 PID 3504 wrote to memory of 4836 3504 cmd.exe 101 PID 4412 wrote to memory of 3208 4412 java.exe 102 PID 4412 wrote to memory of 3208 4412 java.exe 102 PID 3208 wrote to memory of 2900 3208 cmd.exe 104 PID 3208 wrote to memory of 2900 3208 cmd.exe 104 PID 4412 wrote to memory of 2248 4412 java.exe 105 PID 4412 wrote to memory of 2248 4412 java.exe 105 PID 2248 wrote to memory of 2484 2248 cmd.exe 107 PID 2248 wrote to memory of 2484 2248 cmd.exe 107 PID 4412 wrote to memory of 228 4412 java.exe 108 PID 4412 wrote to memory of 228 4412 java.exe 108 PID 228 wrote to memory of 4472 228 cmd.exe 110 PID 228 wrote to memory of 4472 228 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:\Program Files (x86)\Common Files\Oracle\Java\javapath\java.exejava -jar C:\Users\Admin\AppData\Local\Temp\db428540c47e953c334f9374c2b1ad7ac3dec8904edddbaef7da7cceb599a5f5.jar1⤵
- Suspicious use of WriteProcessMemory
PID:2764 -
C:\Windows\system32\icacls.exeC:\Windows\system32\icacls.exe C:\ProgramData\Oracle\Java\.oracle_jre_usage /grant "everyone":(OI)(CI)M2⤵
- Modifies file permissions
PID:4632
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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\db428540c47e953c334f9374c2b1ad7ac3dec8904edddbaef7da7cceb599a5f5.jar"2⤵
- Drops startup file
- Adds Run key to start application
- Suspicious use of WriteProcessMemory
PID:3636 -
C:\Windows\SYSTEM32\cmd.execmd /c schtasks /create /sc minute /mo 30 /tn Skype /tr "C:\Users\Admin\AppData\Roaming\db428540c47e953c334f9374c2b1ad7ac3dec8904edddbaef7da7cceb599a5f5.jar"3⤵
- Suspicious use of WriteProcessMemory
PID:5024 -
C:\Windows\system32\schtasks.exeschtasks /create /sc minute /mo 30 /tn Skype /tr "C:\Users\Admin\AppData\Roaming\db428540c47e953c334f9374c2b1ad7ac3dec8904edddbaef7da7cceb599a5f5.jar"4⤵
- Creates scheduled task(s)
PID:372
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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\db428540c47e953c334f9374c2b1ad7ac3dec8904edddbaef7da7cceb599a5f5.jar"3⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:4412 -
C:\Windows\SYSTEM32\cmd.execmd.exe /c "wmic /node:. /namespace:'\\root\cimv2' path win32_logicaldisk get volumeserialnumber /format:list"4⤵
- Suspicious use of WriteProcessMemory
PID:3504 -
C:\Windows\System32\Wbem\WMIC.exewmic /node:. /namespace:'\\root\cimv2' path win32_logicaldisk get volumeserialnumber /format:list5⤵
- Suspicious use of AdjustPrivilegeToken
PID:4836
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C:\Windows\SYSTEM32\cmd.execmd.exe /c "wmic /node:. /namespace:'\\root\cimv2' path win32_operatingsystem get caption,OSArchitecture /format:list"4⤵
- Suspicious use of WriteProcessMemory
PID:3208 -
C:\Windows\System32\Wbem\WMIC.exewmic /node:. /namespace:'\\root\cimv2' path win32_operatingsystem get caption,OSArchitecture /format:list5⤵
- Suspicious use of AdjustPrivilegeToken
PID:2900
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C:\Windows\SYSTEM32\cmd.execmd.exe /c "wmic /node:. /namespace:'\\root\cimv2' path win32_operatingsystem get version /format:list"4⤵
- Suspicious use of WriteProcessMemory
PID:2248 -
C:\Windows\System32\Wbem\WMIC.exewmic /node:. /namespace:'\\root\cimv2' path win32_operatingsystem get version /format:list5⤵PID:2484
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C:\Windows\SYSTEM32\cmd.execmd.exe /c "wmic /node:localhost /namespace:'\\root\securitycenter2' path antivirusproduct get displayname /format:list"4⤵
- Suspicious use of WriteProcessMemory
PID:228 -
C:\Windows\System32\Wbem\WMIC.exewmic /node:localhost /namespace:'\\root\securitycenter2' path antivirusproduct get displayname /format:list5⤵PID:4472
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
Loading Replay Monitor...
Downloads
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Filesize
46B
MD56399d0dcdaffdf8c247c231be9be9516
SHA1d31b3b77a976d0a1cbdd24e77c2be33849979b1c
SHA256d444f2d42c1869d9aa8709a72b7d6454205343ad7c3c8b47c5112b397d5f12bd
SHA512f460b236b87108ae3cc24ab6eca2fbf7b939f5bf851a1f302a0a2467528b773454ae3deb9cb14bf08123ffcdaa9150075aa609ef05156076d6846e6a07646154
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Filesize
241KB
MD5e02979ecd43bcc9061eb2b494ab5af50
SHA13122ac0e751660f646c73b10c4f79685aa65c545
SHA256a66959bec2ef5af730198db9f3b3f7cab0d4ae70ce01bec02bf1d738e6d1ee7a
SHA5121e6f7dcb6a557c9b896412a48dd017c16f7a52fa2b9ab513593c9ecd118e86083979821ca7a3e2f098ee349200c823c759cec6599740dd391cb5f354dc29b372
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C:\Users\Admin\AppData\Roaming\Microsoft\Crypto\RSA\S-1-5-21-3558294865-3673844354-2255444939-1000\83aa4cc77f591dfc2374580bbd95f6ba_39fbc0df-d496-4ae0-b1d7-bde60e245d90
Filesize45B
MD5c8366ae350e7019aefc9d1e6e6a498c6
SHA15731d8a3e6568a5f2dfbbc87e3db9637df280b61
SHA25611e6aca8e682c046c83b721eeb5c72c5ef03cb5936c60df6f4993511ddc61238
SHA51233c980d5a638bfc791de291ebf4b6d263b384247ab27f261a54025108f2f85374b579a026e545f81395736dd40fa4696f2163ca17640dd47f1c42bc9971b18cd
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Filesize
452KB
MD5b863903234d42638a8c23da983521741
SHA1c36e2e31e51ce16dcf7e14256f95dd79754bd69d
SHA256db428540c47e953c334f9374c2b1ad7ac3dec8904edddbaef7da7cceb599a5f5
SHA5121be7f49a77c589ac76f49a4f33f173559a73113449a19b839462a2ca056f4d008c2d3ecf24f69176feb4550d40a09e3ff1e5abeef9d126d464e4d1d56d69c90e
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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