Analysis
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max time kernel
146s -
max time network
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platform
windows10-2004_x64 -
resource
win10v2004-20240802-en -
resource tags
arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system -
submitted
22-08-2024 10:49
Static task
static1
Behavioral task
behavioral1
Sample
c3b27ba76af8fec666012c88a8c7a72a428315d8d475b7cf8a4e2e2b6e8b20cf.jar
Resource
win7-20240708-en
Behavioral task
behavioral2
Sample
c3b27ba76af8fec666012c88a8c7a72a428315d8d475b7cf8a4e2e2b6e8b20cf.jar
Resource
win10v2004-20240802-en
General
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Target
c3b27ba76af8fec666012c88a8c7a72a428315d8d475b7cf8a4e2e2b6e8b20cf.jar
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Size
400KB
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MD5
247581cc28bdbd4d432669ca5d588163
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SHA1
da0fb4d2b9659436cdad587689a26600aa52fe20
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SHA256
c3b27ba76af8fec666012c88a8c7a72a428315d8d475b7cf8a4e2e2b6e8b20cf
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SHA512
68281c5c48f0333943d24ad9d1e54196dbe809d43e3f9a170ee22cfc7b51350be001f7a68285e33752684ca00568419442c6bc05994f78e56bb32338e2f024e8
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SSDEEP
12288:QQeEHTT5f4YEDBA8v7m3zaWLckXP9iN43:QJgTT59ISjFP9Qu
Malware Config
Signatures
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Drops startup file 1 IoCs
Processes:
java.exedescription ioc Process File created C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\c3b27ba76af8fec666012c88a8c7a72a428315d8d475b7cf8a4e2e2b6e8b20cf.jar java.exe -
Loads dropped DLL 1 IoCs
Processes:
java.exepid Process 1688 java.exe -
Adds Run key to start application 2 TTPs 2 IoCs
Processes:
java.exedescription ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-945322488-2060912225-3527527000-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\c3b27ba76af8fec666012c88a8c7a72a428315d8d475b7cf8a4e2e2b6e8b20cf = "\"C:\\Program Files\\Java\\jre-1.8\\bin\\javaw.exe\" -jar \"C:\\Users\\Admin\\AppData\\Roaming\\c3b27ba76af8fec666012c88a8c7a72a428315d8d475b7cf8a4e2e2b6e8b20cf.jar\"" java.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\c3b27ba76af8fec666012c88a8c7a72a428315d8d475b7cf8a4e2e2b6e8b20cf = "\"C:\\Program Files\\Java\\jre-1.8\\bin\\javaw.exe\" -jar \"C:\\Users\\Admin\\AppData\\Roaming\\c3b27ba76af8fec666012c88a8c7a72a428315d8d475b7cf8a4e2e2b6e8b20cf.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.
Processes:
flow ioc 35 ip-api.com -
Scheduled Task/Job: Scheduled Task 1 TTPs 1 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
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Suspicious use of AdjustPrivilegeToken 64 IoCs
Processes:
WMIC.exeWMIC.exedescription pid Process Token: SeIncreaseQuotaPrivilege 2040 WMIC.exe Token: SeSecurityPrivilege 2040 WMIC.exe Token: SeTakeOwnershipPrivilege 2040 WMIC.exe Token: SeLoadDriverPrivilege 2040 WMIC.exe Token: SeSystemProfilePrivilege 2040 WMIC.exe Token: SeSystemtimePrivilege 2040 WMIC.exe Token: SeProfSingleProcessPrivilege 2040 WMIC.exe Token: SeIncBasePriorityPrivilege 2040 WMIC.exe Token: SeCreatePagefilePrivilege 2040 WMIC.exe Token: SeBackupPrivilege 2040 WMIC.exe Token: SeRestorePrivilege 2040 WMIC.exe Token: SeShutdownPrivilege 2040 WMIC.exe Token: SeDebugPrivilege 2040 WMIC.exe Token: SeSystemEnvironmentPrivilege 2040 WMIC.exe Token: SeRemoteShutdownPrivilege 2040 WMIC.exe Token: SeUndockPrivilege 2040 WMIC.exe Token: SeManageVolumePrivilege 2040 WMIC.exe Token: 33 2040 WMIC.exe Token: 34 2040 WMIC.exe Token: 35 2040 WMIC.exe Token: 36 2040 WMIC.exe Token: SeIncreaseQuotaPrivilege 2040 WMIC.exe Token: SeSecurityPrivilege 2040 WMIC.exe Token: SeTakeOwnershipPrivilege 2040 WMIC.exe Token: SeLoadDriverPrivilege 2040 WMIC.exe Token: SeSystemProfilePrivilege 2040 WMIC.exe Token: SeSystemtimePrivilege 2040 WMIC.exe Token: SeProfSingleProcessPrivilege 2040 WMIC.exe Token: SeIncBasePriorityPrivilege 2040 WMIC.exe Token: SeCreatePagefilePrivilege 2040 WMIC.exe Token: SeBackupPrivilege 2040 WMIC.exe Token: SeRestorePrivilege 2040 WMIC.exe Token: SeShutdownPrivilege 2040 WMIC.exe Token: SeDebugPrivilege 2040 WMIC.exe Token: SeSystemEnvironmentPrivilege 2040 WMIC.exe Token: SeRemoteShutdownPrivilege 2040 WMIC.exe Token: SeUndockPrivilege 2040 WMIC.exe Token: SeManageVolumePrivilege 2040 WMIC.exe Token: 33 2040 WMIC.exe Token: 34 2040 WMIC.exe Token: 35 2040 WMIC.exe Token: 36 2040 WMIC.exe Token: SeIncreaseQuotaPrivilege 3172 WMIC.exe Token: SeSecurityPrivilege 3172 WMIC.exe Token: SeTakeOwnershipPrivilege 3172 WMIC.exe Token: SeLoadDriverPrivilege 3172 WMIC.exe Token: SeSystemProfilePrivilege 3172 WMIC.exe Token: SeSystemtimePrivilege 3172 WMIC.exe Token: SeProfSingleProcessPrivilege 3172 WMIC.exe Token: SeIncBasePriorityPrivilege 3172 WMIC.exe Token: SeCreatePagefilePrivilege 3172 WMIC.exe Token: SeBackupPrivilege 3172 WMIC.exe Token: SeRestorePrivilege 3172 WMIC.exe Token: SeShutdownPrivilege 3172 WMIC.exe Token: SeDebugPrivilege 3172 WMIC.exe Token: SeSystemEnvironmentPrivilege 3172 WMIC.exe Token: SeRemoteShutdownPrivilege 3172 WMIC.exe Token: SeUndockPrivilege 3172 WMIC.exe Token: SeManageVolumePrivilege 3172 WMIC.exe Token: 33 3172 WMIC.exe Token: 34 3172 WMIC.exe Token: 35 3172 WMIC.exe Token: 36 3172 WMIC.exe Token: SeIncreaseQuotaPrivilege 3172 WMIC.exe -
Suspicious use of WriteProcessMemory 24 IoCs
Processes:
java.exejava.execmd.exejava.execmd.execmd.execmd.execmd.exedescription pid Process procid_target PID 3632 wrote to memory of 2968 3632 java.exe 91 PID 3632 wrote to memory of 2968 3632 java.exe 91 PID 2968 wrote to memory of 4984 2968 java.exe 94 PID 2968 wrote to memory of 4984 2968 java.exe 94 PID 2968 wrote to memory of 1688 2968 java.exe 95 PID 2968 wrote to memory of 1688 2968 java.exe 95 PID 4984 wrote to memory of 732 4984 cmd.exe 98 PID 4984 wrote to memory of 732 4984 cmd.exe 98 PID 1688 wrote to memory of 3272 1688 java.exe 99 PID 1688 wrote to memory of 3272 1688 java.exe 99 PID 3272 wrote to memory of 2040 3272 cmd.exe 101 PID 3272 wrote to memory of 2040 3272 cmd.exe 101 PID 1688 wrote to memory of 824 1688 java.exe 102 PID 1688 wrote to memory of 824 1688 java.exe 102 PID 824 wrote to memory of 3172 824 cmd.exe 104 PID 824 wrote to memory of 3172 824 cmd.exe 104 PID 1688 wrote to memory of 1372 1688 java.exe 105 PID 1688 wrote to memory of 1372 1688 java.exe 105 PID 1372 wrote to memory of 2832 1372 cmd.exe 107 PID 1372 wrote to memory of 2832 1372 cmd.exe 107 PID 1688 wrote to memory of 2468 1688 java.exe 108 PID 1688 wrote to memory of 2468 1688 java.exe 108 PID 2468 wrote to memory of 3020 2468 cmd.exe 110 PID 2468 wrote to memory of 3020 2468 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\c3b27ba76af8fec666012c88a8c7a72a428315d8d475b7cf8a4e2e2b6e8b20cf.jar1⤵
- Suspicious use of WriteProcessMemory
PID:3632 -
C:\Program Files\Java\jre-1.8\bin\java.exe"C:\Program Files\Java\jre-1.8\bin\java.exe" -jar "C:\Users\Admin\c3b27ba76af8fec666012c88a8c7a72a428315d8d475b7cf8a4e2e2b6e8b20cf.jar"2⤵
- Drops startup file
- Adds Run key to start application
- Suspicious use of WriteProcessMemory
PID:2968 -
C:\Windows\SYSTEM32\cmd.execmd /c schtasks /create /sc minute /mo 30 /tn Skype /tr "C:\Users\Admin\AppData\Roaming\c3b27ba76af8fec666012c88a8c7a72a428315d8d475b7cf8a4e2e2b6e8b20cf.jar"3⤵
- Suspicious use of WriteProcessMemory
PID:4984 -
C:\Windows\system32\schtasks.exeschtasks /create /sc minute /mo 30 /tn Skype /tr "C:\Users\Admin\AppData\Roaming\c3b27ba76af8fec666012c88a8c7a72a428315d8d475b7cf8a4e2e2b6e8b20cf.jar"4⤵
- Scheduled Task/Job: Scheduled Task
PID:732
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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\c3b27ba76af8fec666012c88a8c7a72a428315d8d475b7cf8a4e2e2b6e8b20cf.jar"3⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:1688 -
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:3272 -
C:\Windows\System32\Wbem\WMIC.exewmic /node:. /namespace:'\\root\cimv2' path win32_logicaldisk get volumeserialnumber /format:list5⤵
- Suspicious use of AdjustPrivilegeToken
PID:2040
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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:824 -
C:\Windows\System32\Wbem\WMIC.exewmic /node:. /namespace:'\\root\cimv2' path win32_operatingsystem get caption,OSArchitecture /format:list5⤵
- Suspicious use of AdjustPrivilegeToken
PID:3172
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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:1372 -
C:\Windows\System32\Wbem\WMIC.exewmic /node:. /namespace:'\\root\cimv2' path win32_operatingsystem get version /format:list5⤵PID:2832
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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:2468 -
C:\Windows\System32\Wbem\WMIC.exewmic /node:localhost /namespace:'\\root\securitycenter2' path antivirusproduct get displayname /format:list5⤵PID:3020
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Network
MITRE ATT&CK Enterprise v15
Persistence
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Scheduled Task/Job
1Scheduled Task
1Replay Monitor
Loading Replay Monitor...
Downloads
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Filesize
46B
MD50bb72e7c6211fc1636f1e81e1b2115aa
SHA1fad02aefb2044b4433fd633d515dc0cabd1e6315
SHA2562c52ef74e18d1c223b8a9086c5e95292ed6f8c9ccf38c26f6fe7f7be6585a01c
SHA5122be2697c47114ca3cdaa226f7a89fe351a6b083dea0bac0ff0de295b6d46763640426f6fad4806bdc5074a18d807618591c06b6adb31627e95615baf329b2bdd
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Filesize
46B
MD5341671fee4ff8015a2f7ef830a204a2d
SHA1a29d11a2dbb1c1e7a6b179f582799025876324ac
SHA2564479a1a89ffb2bf017130decf631ed4fa748668f81a979bcd6dc8f0e845f9c2e
SHA512dcfa2d70686c408cd4d65fa695131f7a5de00b7fa9b7aa1c976c202fb9220138a01fab384eb0932731a0e37c12c2b1b60bf8a87b177bb2c3ef5dea8a0c3d6387
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Filesize
241KB
MD5e02979ecd43bcc9061eb2b494ab5af50
SHA13122ac0e751660f646c73b10c4f79685aa65c545
SHA256a66959bec2ef5af730198db9f3b3f7cab0d4ae70ce01bec02bf1d738e6d1ee7a
SHA5121e6f7dcb6a557c9b896412a48dd017c16f7a52fa2b9ab513593c9ecd118e86083979821ca7a3e2f098ee349200c823c759cec6599740dd391cb5f354dc29b372
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C:\Users\Admin\AppData\Roaming\Microsoft\Crypto\RSA\S-1-5-21-945322488-2060912225-3527527000-1000\83aa4cc77f591dfc2374580bbd95f6ba_03d68389-5a68-4d9e-92ac-47b927e624dd
Filesize45B
MD5c8366ae350e7019aefc9d1e6e6a498c6
SHA15731d8a3e6568a5f2dfbbc87e3db9637df280b61
SHA25611e6aca8e682c046c83b721eeb5c72c5ef03cb5936c60df6f4993511ddc61238
SHA51233c980d5a638bfc791de291ebf4b6d263b384247ab27f261a54025108f2f85374b579a026e545f81395736dd40fa4696f2163ca17640dd47f1c42bc9971b18cd
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Filesize
400KB
MD5247581cc28bdbd4d432669ca5d588163
SHA1da0fb4d2b9659436cdad587689a26600aa52fe20
SHA256c3b27ba76af8fec666012c88a8c7a72a428315d8d475b7cf8a4e2e2b6e8b20cf
SHA51268281c5c48f0333943d24ad9d1e54196dbe809d43e3f9a170ee22cfc7b51350be001f7a68285e33752684ca00568419442c6bc05994f78e56bb32338e2f024e8
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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