Analysis
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max time kernel
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max time network
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platform
windows10-2004_x64 -
resource
win10v2004-20240426-en -
resource tags
arch:x64arch:x86image:win10v2004-20240426-enlocale:en-usos:windows10-2004-x64system -
submitted
07-06-2024 08:12
Static task
static1
Behavioral task
behavioral1
Sample
3aa407592573d9cdc3527c18d778d71b83dfbc9bc6b638f619229d9d8c51d61d.jar
Resource
win7-20240221-en
Behavioral task
behavioral2
Sample
3aa407592573d9cdc3527c18d778d71b83dfbc9bc6b638f619229d9d8c51d61d.jar
Resource
win10v2004-20240426-en
General
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Target
3aa407592573d9cdc3527c18d778d71b83dfbc9bc6b638f619229d9d8c51d61d.jar
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Size
481KB
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MD5
3a8408bd24e0c03eff82e67943d10f23
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SHA1
15905ce2e7170b6dd2110d793820665a5d7ea1eb
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SHA256
3aa407592573d9cdc3527c18d778d71b83dfbc9bc6b638f619229d9d8c51d61d
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SHA512
46044d9727ae1ee10dd7f0aa108b3717cb2dccd995d505af115f35edb45b649a47533ccabd50d2a2c44d90a87ababc231e2acc01672dfe35f02eb7b739653d20
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SSDEEP
12288:6tlWvKeQSPEUpTroRFoRb5h7BC2JBMct62xKcO:6fWvlvXoEtMM62S
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\3aa407592573d9cdc3527c18d778d71b83dfbc9bc6b638f619229d9d8c51d61d.jar java.exe -
Loads dropped DLL 1 IoCs
pid Process 3904 java.exe -
Modifies file permissions 1 TTPs 1 IoCs
pid Process 4164 icacls.exe -
Adds Run key to start application 2 TTPs 2 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-3906287020-2915474608-1755617787-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\3aa407592573d9cdc3527c18d778d71b83dfbc9bc6b638f619229d9d8c51d61d = "\"C:\\Program Files\\Java\\jre-1.8\\bin\\javaw.exe\" -jar \"C:\\Users\\Admin\\AppData\\Roaming\\3aa407592573d9cdc3527c18d778d71b83dfbc9bc6b638f619229d9d8c51d61d.jar\"" java.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\3aa407592573d9cdc3527c18d778d71b83dfbc9bc6b638f619229d9d8c51d61d = "\"C:\\Program Files\\Java\\jre-1.8\\bin\\javaw.exe\" -jar \"C:\\Users\\Admin\\AppData\\Roaming\\3aa407592573d9cdc3527c18d778d71b83dfbc9bc6b638f619229d9d8c51d61d.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 27 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 4380 schtasks.exe -
Suspicious use of AdjustPrivilegeToken 64 IoCs
description pid Process Token: SeIncreaseQuotaPrivilege 4288 WMIC.exe Token: SeSecurityPrivilege 4288 WMIC.exe Token: SeTakeOwnershipPrivilege 4288 WMIC.exe Token: SeLoadDriverPrivilege 4288 WMIC.exe Token: SeSystemProfilePrivilege 4288 WMIC.exe Token: SeSystemtimePrivilege 4288 WMIC.exe Token: SeProfSingleProcessPrivilege 4288 WMIC.exe Token: SeIncBasePriorityPrivilege 4288 WMIC.exe Token: SeCreatePagefilePrivilege 4288 WMIC.exe Token: SeBackupPrivilege 4288 WMIC.exe Token: SeRestorePrivilege 4288 WMIC.exe Token: SeShutdownPrivilege 4288 WMIC.exe Token: SeDebugPrivilege 4288 WMIC.exe Token: SeSystemEnvironmentPrivilege 4288 WMIC.exe Token: SeRemoteShutdownPrivilege 4288 WMIC.exe Token: SeUndockPrivilege 4288 WMIC.exe Token: SeManageVolumePrivilege 4288 WMIC.exe Token: 33 4288 WMIC.exe Token: 34 4288 WMIC.exe Token: 35 4288 WMIC.exe Token: 36 4288 WMIC.exe Token: SeIncreaseQuotaPrivilege 4288 WMIC.exe Token: SeSecurityPrivilege 4288 WMIC.exe Token: SeTakeOwnershipPrivilege 4288 WMIC.exe Token: SeLoadDriverPrivilege 4288 WMIC.exe Token: SeSystemProfilePrivilege 4288 WMIC.exe Token: SeSystemtimePrivilege 4288 WMIC.exe Token: SeProfSingleProcessPrivilege 4288 WMIC.exe Token: SeIncBasePriorityPrivilege 4288 WMIC.exe Token: SeCreatePagefilePrivilege 4288 WMIC.exe Token: SeBackupPrivilege 4288 WMIC.exe Token: SeRestorePrivilege 4288 WMIC.exe Token: SeShutdownPrivilege 4288 WMIC.exe Token: SeDebugPrivilege 4288 WMIC.exe Token: SeSystemEnvironmentPrivilege 4288 WMIC.exe Token: SeRemoteShutdownPrivilege 4288 WMIC.exe Token: SeUndockPrivilege 4288 WMIC.exe Token: SeManageVolumePrivilege 4288 WMIC.exe Token: 33 4288 WMIC.exe Token: 34 4288 WMIC.exe Token: 35 4288 WMIC.exe Token: 36 4288 WMIC.exe Token: SeIncreaseQuotaPrivilege 5992 WMIC.exe Token: SeSecurityPrivilege 5992 WMIC.exe Token: SeTakeOwnershipPrivilege 5992 WMIC.exe Token: SeLoadDriverPrivilege 5992 WMIC.exe Token: SeSystemProfilePrivilege 5992 WMIC.exe Token: SeSystemtimePrivilege 5992 WMIC.exe Token: SeProfSingleProcessPrivilege 5992 WMIC.exe Token: SeIncBasePriorityPrivilege 5992 WMIC.exe Token: SeCreatePagefilePrivilege 5992 WMIC.exe Token: SeBackupPrivilege 5992 WMIC.exe Token: SeRestorePrivilege 5992 WMIC.exe Token: SeShutdownPrivilege 5992 WMIC.exe Token: SeDebugPrivilege 5992 WMIC.exe Token: SeSystemEnvironmentPrivilege 5992 WMIC.exe Token: SeRemoteShutdownPrivilege 5992 WMIC.exe Token: SeUndockPrivilege 5992 WMIC.exe Token: SeManageVolumePrivilege 5992 WMIC.exe Token: 33 5992 WMIC.exe Token: 34 5992 WMIC.exe Token: 35 5992 WMIC.exe Token: 36 5992 WMIC.exe Token: SeIncreaseQuotaPrivilege 5992 WMIC.exe -
Suspicious use of WriteProcessMemory 26 IoCs
description pid Process procid_target PID 4076 wrote to memory of 4164 4076 java.exe 84 PID 4076 wrote to memory of 4164 4076 java.exe 84 PID 4076 wrote to memory of 2308 4076 java.exe 91 PID 4076 wrote to memory of 2308 4076 java.exe 91 PID 2308 wrote to memory of 5672 2308 java.exe 93 PID 2308 wrote to memory of 5672 2308 java.exe 93 PID 2308 wrote to memory of 3904 2308 java.exe 94 PID 2308 wrote to memory of 3904 2308 java.exe 94 PID 5672 wrote to memory of 4380 5672 cmd.exe 97 PID 5672 wrote to memory of 4380 5672 cmd.exe 97 PID 3904 wrote to memory of 3252 3904 java.exe 99 PID 3904 wrote to memory of 3252 3904 java.exe 99 PID 3252 wrote to memory of 4288 3252 cmd.exe 101 PID 3252 wrote to memory of 4288 3252 cmd.exe 101 PID 3904 wrote to memory of 652 3904 java.exe 102 PID 3904 wrote to memory of 652 3904 java.exe 102 PID 652 wrote to memory of 5992 652 cmd.exe 104 PID 652 wrote to memory of 5992 652 cmd.exe 104 PID 3904 wrote to memory of 4496 3904 java.exe 105 PID 3904 wrote to memory of 4496 3904 java.exe 105 PID 4496 wrote to memory of 5420 4496 cmd.exe 107 PID 4496 wrote to memory of 5420 4496 cmd.exe 107 PID 3904 wrote to memory of 6084 3904 java.exe 108 PID 3904 wrote to memory of 6084 3904 java.exe 108 PID 6084 wrote to memory of 5312 6084 cmd.exe 110 PID 6084 wrote to memory of 5312 6084 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\3aa407592573d9cdc3527c18d778d71b83dfbc9bc6b638f619229d9d8c51d61d.jar1⤵
- Suspicious use of WriteProcessMemory
PID:4076 -
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:4164
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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\3aa407592573d9cdc3527c18d778d71b83dfbc9bc6b638f619229d9d8c51d61d.jar"2⤵
- Drops startup file
- Adds Run key to start application
- Suspicious use of WriteProcessMemory
PID:2308 -
C:\Windows\SYSTEM32\cmd.execmd /c schtasks /create /sc minute /mo 30 /tn Skype /tr "C:\Users\Admin\AppData\Roaming\3aa407592573d9cdc3527c18d778d71b83dfbc9bc6b638f619229d9d8c51d61d.jar"3⤵
- Suspicious use of WriteProcessMemory
PID:5672 -
C:\Windows\system32\schtasks.exeschtasks /create /sc minute /mo 30 /tn Skype /tr "C:\Users\Admin\AppData\Roaming\3aa407592573d9cdc3527c18d778d71b83dfbc9bc6b638f619229d9d8c51d61d.jar"4⤵
- Creates scheduled task(s)
PID:4380
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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\3aa407592573d9cdc3527c18d778d71b83dfbc9bc6b638f619229d9d8c51d61d.jar"3⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:3904 -
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:3252 -
C:\Windows\System32\Wbem\WMIC.exewmic /node:. /namespace:'\\root\cimv2' path win32_logicaldisk get volumeserialnumber /format:list5⤵
- Suspicious use of AdjustPrivilegeToken
PID:4288
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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:652 -
C:\Windows\System32\Wbem\WMIC.exewmic /node:. /namespace:'\\root\cimv2' path win32_operatingsystem get caption,OSArchitecture /format:list5⤵
- Suspicious use of AdjustPrivilegeToken
PID:5992
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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:4496 -
C:\Windows\System32\Wbem\WMIC.exewmic /node:. /namespace:'\\root\cimv2' path win32_operatingsystem get version /format:list5⤵PID:5420
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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:6084 -
C:\Windows\System32\Wbem\WMIC.exewmic /node:localhost /namespace:'\\root\securitycenter2' path antivirusproduct get displayname /format:list5⤵PID:5312
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
46B
MD5c45da2d5e8103d894bdef0216de5403b
SHA1c26a9ffc0272a4f07d4c79a29e119f1774b1b747
SHA2568ae1b6ec9aae98a94a9e1d146d0222b54b114b49d831c9811b6aa7a2f9f1761b
SHA5121751b86e370d4aee495972c1b0554d08abf1543618e48e9c1c873290576aaed3a62fe6906347f29fc37f7dde43de5e8d862c99db4814ff3d751a71410b4148f8
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Filesize
481KB
MD53a8408bd24e0c03eff82e67943d10f23
SHA115905ce2e7170b6dd2110d793820665a5d7ea1eb
SHA2563aa407592573d9cdc3527c18d778d71b83dfbc9bc6b638f619229d9d8c51d61d
SHA51246044d9727ae1ee10dd7f0aa108b3717cb2dccd995d505af115f35edb45b649a47533ccabd50d2a2c44d90a87ababc231e2acc01672dfe35f02eb7b739653d20
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Filesize
241KB
MD5e02979ecd43bcc9061eb2b494ab5af50
SHA13122ac0e751660f646c73b10c4f79685aa65c545
SHA256a66959bec2ef5af730198db9f3b3f7cab0d4ae70ce01bec02bf1d738e6d1ee7a
SHA5121e6f7dcb6a557c9b896412a48dd017c16f7a52fa2b9ab513593c9ecd118e86083979821ca7a3e2f098ee349200c823c759cec6599740dd391cb5f354dc29b372
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C:\Users\Admin\AppData\Roaming\Microsoft\Crypto\RSA\S-1-5-21-3906287020-2915474608-1755617787-1000\83aa4cc77f591dfc2374580bbd95f6ba_215f2dba-ef84-4dd1-b127-5f514a0c233b
Filesize45B
MD5c8366ae350e7019aefc9d1e6e6a498c6
SHA15731d8a3e6568a5f2dfbbc87e3db9637df280b61
SHA25611e6aca8e682c046c83b721eeb5c72c5ef03cb5936c60df6f4993511ddc61238
SHA51233c980d5a638bfc791de291ebf4b6d263b384247ab27f261a54025108f2f85374b579a026e545f81395736dd40fa4696f2163ca17640dd47f1c42bc9971b18cd
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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