Analysis
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max time kernel
150s -
max time network
151s -
platform
windows10-2004_x64 -
resource
win10v2004-20240226-en -
resource tags
arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system -
submitted
13/06/2024, 23:16
Behavioral task
behavioral1
Sample
PO881620-2024.jar
Resource
win7-20240508-en
Behavioral task
behavioral2
Sample
PO881620-2024.jar
Resource
win10v2004-20240226-en
General
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Target
PO881620-2024.jar
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Size
203KB
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MD5
ef8d2de4e2983dddfe12759ba4626d20
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SHA1
e3ce248bdcd07b23e94ce832062cf717a83334a8
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SHA256
8fc554384f269993bde053de9811902c44135fb99e1944c5047afea9aac6ea40
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SHA512
6d956b3e536fb7227c7bcb9d2beeaac9e64fae4c60e32b95772201d0c68b962936104fba7b57ef57e82c02d193b8200539a55e69ec95a4f7d1fcfee331203280
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SSDEEP
3072:yVeoCg5sL1zElp9IsdQffd3qrNMVMYBJk4ubY+tqtPwzrLQBAWfTy3KNY:8L61z29/dHpMVMYBqN0JIzr0qWfTxY
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\PO881620-2024.jar java.exe -
Loads dropped DLL 1 IoCs
pid Process 5012 java.exe -
Modifies file permissions 1 TTPs 1 IoCs
pid Process 1668 icacls.exe -
Adds Run key to start application 2 TTPs 2 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-3808065738-1666277613-1125846146-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\PO881620-2024 = "\"C:\\Program Files\\Java\\jre-1.8\\bin\\javaw.exe\" -jar \"C:\\Users\\Admin\\AppData\\Roaming\\PO881620-2024.jar\"" java.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\PO881620-2024 = "\"C:\\Program Files\\Java\\jre-1.8\\bin\\javaw.exe\" -jar \"C:\\Users\\Admin\\AppData\\Roaming\\PO881620-2024.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 33 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 3772 schtasks.exe -
Suspicious use of AdjustPrivilegeToken 64 IoCs
description pid Process Token: SeIncreaseQuotaPrivilege 3544 WMIC.exe Token: SeSecurityPrivilege 3544 WMIC.exe Token: SeTakeOwnershipPrivilege 3544 WMIC.exe Token: SeLoadDriverPrivilege 3544 WMIC.exe Token: SeSystemProfilePrivilege 3544 WMIC.exe Token: SeSystemtimePrivilege 3544 WMIC.exe Token: SeProfSingleProcessPrivilege 3544 WMIC.exe Token: SeIncBasePriorityPrivilege 3544 WMIC.exe Token: SeCreatePagefilePrivilege 3544 WMIC.exe Token: SeBackupPrivilege 3544 WMIC.exe Token: SeRestorePrivilege 3544 WMIC.exe Token: SeShutdownPrivilege 3544 WMIC.exe Token: SeDebugPrivilege 3544 WMIC.exe Token: SeSystemEnvironmentPrivilege 3544 WMIC.exe Token: SeRemoteShutdownPrivilege 3544 WMIC.exe Token: SeUndockPrivilege 3544 WMIC.exe Token: SeManageVolumePrivilege 3544 WMIC.exe Token: 33 3544 WMIC.exe Token: 34 3544 WMIC.exe Token: 35 3544 WMIC.exe Token: 36 3544 WMIC.exe Token: SeIncreaseQuotaPrivilege 3544 WMIC.exe Token: SeSecurityPrivilege 3544 WMIC.exe Token: SeTakeOwnershipPrivilege 3544 WMIC.exe Token: SeLoadDriverPrivilege 3544 WMIC.exe Token: SeSystemProfilePrivilege 3544 WMIC.exe Token: SeSystemtimePrivilege 3544 WMIC.exe Token: SeProfSingleProcessPrivilege 3544 WMIC.exe Token: SeIncBasePriorityPrivilege 3544 WMIC.exe Token: SeCreatePagefilePrivilege 3544 WMIC.exe Token: SeBackupPrivilege 3544 WMIC.exe Token: SeRestorePrivilege 3544 WMIC.exe Token: SeShutdownPrivilege 3544 WMIC.exe Token: SeDebugPrivilege 3544 WMIC.exe Token: SeSystemEnvironmentPrivilege 3544 WMIC.exe Token: SeRemoteShutdownPrivilege 3544 WMIC.exe Token: SeUndockPrivilege 3544 WMIC.exe Token: SeManageVolumePrivilege 3544 WMIC.exe Token: 33 3544 WMIC.exe Token: 34 3544 WMIC.exe Token: 35 3544 WMIC.exe Token: 36 3544 WMIC.exe Token: SeIncreaseQuotaPrivilege 2856 WMIC.exe Token: SeSecurityPrivilege 2856 WMIC.exe Token: SeTakeOwnershipPrivilege 2856 WMIC.exe Token: SeLoadDriverPrivilege 2856 WMIC.exe Token: SeSystemProfilePrivilege 2856 WMIC.exe Token: SeSystemtimePrivilege 2856 WMIC.exe Token: SeProfSingleProcessPrivilege 2856 WMIC.exe Token: SeIncBasePriorityPrivilege 2856 WMIC.exe Token: SeCreatePagefilePrivilege 2856 WMIC.exe Token: SeBackupPrivilege 2856 WMIC.exe Token: SeRestorePrivilege 2856 WMIC.exe Token: SeShutdownPrivilege 2856 WMIC.exe Token: SeDebugPrivilege 2856 WMIC.exe Token: SeSystemEnvironmentPrivilege 2856 WMIC.exe Token: SeRemoteShutdownPrivilege 2856 WMIC.exe Token: SeUndockPrivilege 2856 WMIC.exe Token: SeManageVolumePrivilege 2856 WMIC.exe Token: 33 2856 WMIC.exe Token: 34 2856 WMIC.exe Token: 35 2856 WMIC.exe Token: 36 2856 WMIC.exe Token: SeIncreaseQuotaPrivilege 2856 WMIC.exe -
Suspicious use of WriteProcessMemory 26 IoCs
description pid Process procid_target PID 2240 wrote to memory of 1668 2240 java.exe 91 PID 2240 wrote to memory of 1668 2240 java.exe 91 PID 2240 wrote to memory of 1752 2240 java.exe 93 PID 2240 wrote to memory of 1752 2240 java.exe 93 PID 1752 wrote to memory of 2312 1752 java.exe 99 PID 1752 wrote to memory of 2312 1752 java.exe 99 PID 1752 wrote to memory of 5012 1752 java.exe 100 PID 1752 wrote to memory of 5012 1752 java.exe 100 PID 2312 wrote to memory of 3772 2312 cmd.exe 103 PID 2312 wrote to memory of 3772 2312 cmd.exe 103 PID 5012 wrote to memory of 1204 5012 java.exe 105 PID 5012 wrote to memory of 1204 5012 java.exe 105 PID 1204 wrote to memory of 3544 1204 cmd.exe 107 PID 1204 wrote to memory of 3544 1204 cmd.exe 107 PID 5012 wrote to memory of 3940 5012 java.exe 108 PID 5012 wrote to memory of 3940 5012 java.exe 108 PID 3940 wrote to memory of 2856 3940 cmd.exe 110 PID 3940 wrote to memory of 2856 3940 cmd.exe 110 PID 5012 wrote to memory of 3264 5012 java.exe 111 PID 5012 wrote to memory of 3264 5012 java.exe 111 PID 3264 wrote to memory of 3992 3264 cmd.exe 113 PID 3264 wrote to memory of 3992 3264 cmd.exe 113 PID 5012 wrote to memory of 4604 5012 java.exe 114 PID 5012 wrote to memory of 4604 5012 java.exe 114 PID 4604 wrote to memory of 4352 4604 cmd.exe 116 PID 4604 wrote to memory of 4352 4604 cmd.exe 116 -
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\PO881620-2024.jar1⤵
- Suspicious use of WriteProcessMemory
PID:2240 -
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:1668
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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\PO881620-2024.jar"2⤵
- Drops startup file
- Adds Run key to start application
- Suspicious use of WriteProcessMemory
PID:1752 -
C:\Windows\SYSTEM32\cmd.execmd /c schtasks /create /sc minute /mo 30 /tn Skype /tr "C:\Users\Admin\AppData\Roaming\PO881620-2024.jar"3⤵
- Suspicious use of WriteProcessMemory
PID:2312 -
C:\Windows\system32\schtasks.exeschtasks /create /sc minute /mo 30 /tn Skype /tr "C:\Users\Admin\AppData\Roaming\PO881620-2024.jar"4⤵
- Creates scheduled task(s)
PID:3772
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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\PO881620-2024.jar"3⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:5012 -
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:1204 -
C:\Windows\System32\Wbem\WMIC.exewmic /node:. /namespace:'\\root\cimv2' path win32_logicaldisk get volumeserialnumber /format:list5⤵
- Suspicious use of AdjustPrivilegeToken
PID:3544
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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:3940 -
C:\Windows\System32\Wbem\WMIC.exewmic /node:. /namespace:'\\root\cimv2' path win32_operatingsystem get caption,OSArchitecture /format:list5⤵
- Suspicious use of AdjustPrivilegeToken
PID:2856
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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:3264 -
C:\Windows\System32\Wbem\WMIC.exewmic /node:. /namespace:'\\root\cimv2' path win32_operatingsystem get version /format:list5⤵PID:3992
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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:4604 -
C:\Windows\System32\Wbem\WMIC.exewmic /node:localhost /namespace:'\\root\securitycenter2' path antivirusproduct get displayname /format:list5⤵PID:4352
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C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --no-appcompat-clear --mojo-platform-channel-handle=1316 --field-trial-handle=2280,i,11703952675008463361,17436195144517971517,262144 --variations-seed-version /prefetch:81⤵PID:2528
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
241KB
MD5e02979ecd43bcc9061eb2b494ab5af50
SHA13122ac0e751660f646c73b10c4f79685aa65c545
SHA256a66959bec2ef5af730198db9f3b3f7cab0d4ae70ce01bec02bf1d738e6d1ee7a
SHA5121e6f7dcb6a557c9b896412a48dd017c16f7a52fa2b9ab513593c9ecd118e86083979821ca7a3e2f098ee349200c823c759cec6599740dd391cb5f354dc29b372
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C:\Users\Admin\AppData\Roaming\Microsoft\Crypto\RSA\S-1-5-21-3808065738-1666277613-1125846146-1000\83aa4cc77f591dfc2374580bbd95f6ba_2397ee06-28fe-4eaa-8777-f7014368c353
Filesize45B
MD5c8366ae350e7019aefc9d1e6e6a498c6
SHA15731d8a3e6568a5f2dfbbc87e3db9637df280b61
SHA25611e6aca8e682c046c83b721eeb5c72c5ef03cb5936c60df6f4993511ddc61238
SHA51233c980d5a638bfc791de291ebf4b6d263b384247ab27f261a54025108f2f85374b579a026e545f81395736dd40fa4696f2163ca17640dd47f1c42bc9971b18cd
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Filesize
203KB
MD5ef8d2de4e2983dddfe12759ba4626d20
SHA1e3ce248bdcd07b23e94ce832062cf717a83334a8
SHA2568fc554384f269993bde053de9811902c44135fb99e1944c5047afea9aac6ea40
SHA5126d956b3e536fb7227c7bcb9d2beeaac9e64fae4c60e32b95772201d0c68b962936104fba7b57ef57e82c02d193b8200539a55e69ec95a4f7d1fcfee331203280
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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