Analysis
- max time kernel
296s - max time network
299s - platform
windows11-21h2_x64 - resource
win11-20240426-en - resource tags
arch:x64arch:x86image:win11-20240426-enlocale:en-usos:windows11-21h2-x64system - submitted
22/05/2024, 11:15
Static task
static1
Behavioral task
behavioral1
Sample
27f117c2cdae0c702f1095bb7c6fe40d7efb18e4ac14d3eca5570ce1d24bac2c.jar
Resource
win10-20240404-en
Behavioral task
behavioral2
Sample
27f117c2cdae0c702f1095bb7c6fe40d7efb18e4ac14d3eca5570ce1d24bac2c.jar
Resource
win7-20240220-en
Behavioral task
behavioral3
Sample
27f117c2cdae0c702f1095bb7c6fe40d7efb18e4ac14d3eca5570ce1d24bac2c.jar
Resource
win10v2004-20240426-en
Behavioral task
behavioral4
Sample
27f117c2cdae0c702f1095bb7c6fe40d7efb18e4ac14d3eca5570ce1d24bac2c.jar
Resource
win11-20240426-en
General
- Target 27f117c2cdae0c702f1095bb7c6fe40d7efb18e4ac14d3eca5570ce1d24bac2c.jar
- Size 558KB
- Sample240522-nc1rxacf97
- SHA256 27f117c2cdae0c702f1095bb7c6fe40d7efb18e4ac14d3eca5570ce1d24bac2c
- MD5 cbc196fe2d418f1e6ad46cc906a1f6fa
- SHA1 cd0b7f45e2f5077b567f26b8bb0d553d6e605311
- SHA512 94694d8e7993696c9f871c027b072d4788130cfd6f9155a0fa451840bedbd6d70e544f0e567c6f5f4899b7a5f37c032decdbb8c29fe432709fdf6c7e5887a6ae
- SSDEEP 6144:FsoiTHc0JQc7jot+Tn3leT9OMiYNf2M57Qu1LJ5NIn4knrWIMXYMXs+72EE/20y/:FsogJItaeR/NucMu11INrWlX2/nyz+5w
- MD5 SHA1 SHA512 SSDEEP
Malware Config
Signatures
- Drops startup file 1 IoCs
description ioc Process File created C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\27f117c2cdae0c702f1095bb7c6fe40d7efb18e4ac14d3eca5570ce1d24bac2c.jar java.exe - Loads dropped DLL 1 IoCs
pid Process 3020 java.exe - Modifies file permissions 1 TTPs 1 IoCs
pid Process 1360 icacls.exe - Adds Run key to start application 2 TTPs 2 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-2994005945-4089876968-1367784197-1000\Software\Microsoft\Windows\CurrentVersion\Run\27f117c2cdae0c702f1095bb7c6fe40d7efb18e4ac14d3eca5570ce1d24bac2c = "\"C:\\Program Files\\Java\\jre-1.8\\bin\\javaw.exe\" -jar \"C:\\Users\\Admin\\AppData\\Roaming\\27f117c2cdae0c702f1095bb7c6fe40d7efb18e4ac14d3eca5570ce1d24bac2c.jar\"" java.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\27f117c2cdae0c702f1095bb7c6fe40d7efb18e4ac14d3eca5570ce1d24bac2c = "\"C:\\Program Files\\Java\\jre-1.8\\bin\\javaw.exe\" -jar \"C:\\Users\\Admin\\AppData\\Roaming\\27f117c2cdae0c702f1095bb7c6fe40d7efb18e4ac14d3eca5570ce1d24bac2c.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 1 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 1832 schtasks.exe - Suspicious use of AdjustPrivilegeToken 64 IoCs
description pid Process Token: SeIncreaseQuotaPrivilege 2276 WMIC.exe Token: SeSecurityPrivilege 2276 WMIC.exe Token: SeTakeOwnershipPrivilege 2276 WMIC.exe Token: SeLoadDriverPrivilege 2276 WMIC.exe Token: SeSystemProfilePrivilege 2276 WMIC.exe Token: SeSystemtimePrivilege 2276 WMIC.exe Token: SeProfSingleProcessPrivilege 2276 WMIC.exe Token: SeIncBasePriorityPrivilege 2276 WMIC.exe Token: SeCreatePagefilePrivilege 2276 WMIC.exe Token: SeBackupPrivilege 2276 WMIC.exe Token: SeRestorePrivilege 2276 WMIC.exe Token: SeShutdownPrivilege 2276 WMIC.exe Token: SeDebugPrivilege 2276 WMIC.exe Token: SeSystemEnvironmentPrivilege 2276 WMIC.exe Token: SeRemoteShutdownPrivilege 2276 WMIC.exe Token: SeUndockPrivilege 2276 WMIC.exe Token: SeManageVolumePrivilege 2276 WMIC.exe Token: 33 2276 WMIC.exe Token: 34 2276 WMIC.exe Token: 35 2276 WMIC.exe Token: 36 2276 WMIC.exe Token: SeIncreaseQuotaPrivilege 2276 WMIC.exe Token: SeSecurityPrivilege 2276 WMIC.exe Token: SeTakeOwnershipPrivilege 2276 WMIC.exe Token: SeLoadDriverPrivilege 2276 WMIC.exe Token: SeSystemProfilePrivilege 2276 WMIC.exe Token: SeSystemtimePrivilege 2276 WMIC.exe Token: SeProfSingleProcessPrivilege 2276 WMIC.exe Token: SeIncBasePriorityPrivilege 2276 WMIC.exe Token: SeCreatePagefilePrivilege 2276 WMIC.exe Token: SeBackupPrivilege 2276 WMIC.exe Token: SeRestorePrivilege 2276 WMIC.exe Token: SeShutdownPrivilege 2276 WMIC.exe Token: SeDebugPrivilege 2276 WMIC.exe Token: SeSystemEnvironmentPrivilege 2276 WMIC.exe Token: SeRemoteShutdownPrivilege 2276 WMIC.exe Token: SeUndockPrivilege 2276 WMIC.exe Token: SeManageVolumePrivilege 2276 WMIC.exe Token: 33 2276 WMIC.exe Token: 34 2276 WMIC.exe Token: 35 2276 WMIC.exe Token: 36 2276 WMIC.exe Token: SeIncreaseQuotaPrivilege 3432 WMIC.exe Token: SeSecurityPrivilege 3432 WMIC.exe Token: SeTakeOwnershipPrivilege 3432 WMIC.exe Token: SeLoadDriverPrivilege 3432 WMIC.exe Token: SeSystemProfilePrivilege 3432 WMIC.exe Token: SeSystemtimePrivilege 3432 WMIC.exe Token: SeProfSingleProcessPrivilege 3432 WMIC.exe Token: SeIncBasePriorityPrivilege 3432 WMIC.exe Token: SeCreatePagefilePrivilege 3432 WMIC.exe Token: SeBackupPrivilege 3432 WMIC.exe Token: SeRestorePrivilege 3432 WMIC.exe Token: SeShutdownPrivilege 3432 WMIC.exe Token: SeDebugPrivilege 3432 WMIC.exe Token: SeSystemEnvironmentPrivilege 3432 WMIC.exe Token: SeRemoteShutdownPrivilege 3432 WMIC.exe Token: SeUndockPrivilege 3432 WMIC.exe Token: SeManageVolumePrivilege 3432 WMIC.exe Token: 33 3432 WMIC.exe Token: 34 3432 WMIC.exe Token: 35 3432 WMIC.exe Token: 36 3432 WMIC.exe Token: SeIncreaseQuotaPrivilege 3432 WMIC.exe - Suspicious use of WriteProcessMemory 26 IoCs
description pid Process procid_target PID 3036 wrote to memory of 1360 3036 java.exe 79 PID 3036 wrote to memory of 1360 3036 java.exe 79 PID 3036 wrote to memory of 3552 3036 java.exe 81 PID 3036 wrote to memory of 3552 3036 java.exe 81 PID 3552 wrote to memory of 464 3552 java.exe 83 PID 3552 wrote to memory of 464 3552 java.exe 83 PID 3552 wrote to memory of 3020 3552 java.exe 84 PID 3552 wrote to memory of 3020 3552 java.exe 84 PID 464 wrote to memory of 1832 464 cmd.exe 87 PID 464 wrote to memory of 1832 464 cmd.exe 87 PID 3020 wrote to memory of 1684 3020 java.exe 88 PID 3020 wrote to memory of 1684 3020 java.exe 88 PID 1684 wrote to memory of 2276 1684 cmd.exe 90 PID 1684 wrote to memory of 2276 1684 cmd.exe 90 PID 3020 wrote to memory of 1644 3020 java.exe 92 PID 3020 wrote to memory of 1644 3020 java.exe 92 PID 1644 wrote to memory of 3432 1644 cmd.exe 94 PID 1644 wrote to memory of 3432 1644 cmd.exe 94 PID 3020 wrote to memory of 3068 3020 java.exe 95 PID 3020 wrote to memory of 3068 3020 java.exe 95 PID 3068 wrote to memory of 2108 3068 cmd.exe 97 PID 3068 wrote to memory of 2108 3068 cmd.exe 97 PID 3020 wrote to memory of 3192 3020 java.exe 98 PID 3020 wrote to memory of 3192 3020 java.exe 98 PID 3192 wrote to memory of 1764 3192 cmd.exe 100 PID 3192 wrote to memory of 1764 3192 cmd.exe 100 - 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\27f117c2cdae0c702f1095bb7c6fe40d7efb18e4ac14d3eca5570ce1d24bac2c.jar1⤵
- Suspicious use of WriteProcessMemory
PID:3036 -
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:1360
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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\27f117c2cdae0c702f1095bb7c6fe40d7efb18e4ac14d3eca5570ce1d24bac2c.jar"2⤵
- Drops startup file
- Adds Run key to start application
- Suspicious use of WriteProcessMemory
PID:3552 -
C:\Windows\SYSTEM32\cmd.execmd /c schtasks /create /sc minute /mo 30 /tn Skype /tr "C:\Users\Admin\AppData\Roaming\27f117c2cdae0c702f1095bb7c6fe40d7efb18e4ac14d3eca5570ce1d24bac2c.jar"3⤵
- Suspicious use of WriteProcessMemory
PID:464 -
C:\Windows\system32\schtasks.exeschtasks /create /sc minute /mo 30 /tn Skype /tr "C:\Users\Admin\AppData\Roaming\27f117c2cdae0c702f1095bb7c6fe40d7efb18e4ac14d3eca5570ce1d24bac2c.jar"4⤵
- Creates scheduled task(s)
PID:1832
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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\27f117c2cdae0c702f1095bb7c6fe40d7efb18e4ac14d3eca5570ce1d24bac2c.jar"3⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:3020 -
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:1684 -
C:\Windows\System32\Wbem\WMIC.exewmic /node:. /namespace:'\\root\cimv2' path win32_logicaldisk get volumeserialnumber /format:list5⤵
- Suspicious use of AdjustPrivilegeToken
PID:2276
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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:1644 -
C:\Windows\System32\Wbem\WMIC.exewmic /node:. /namespace:'\\root\cimv2' path win32_operatingsystem get caption,OSArchitecture /format:list5⤵
- Suspicious use of AdjustPrivilegeToken
PID:3432
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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:3068 -
C:\Windows\System32\Wbem\WMIC.exewmic /node:. /namespace:'\\root\cimv2' path win32_operatingsystem get version /format:list5⤵PID:2108
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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:3192 -
C:\Windows\System32\Wbem\WMIC.exewmic /node:localhost /namespace:'\\root\securitycenter2' path antivirusproduct get displayname /format:list5⤵PID:1764
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
- Path C:\ProgramData\Oracle\Java\.oracle_jre_usage\3903daac9bc4a3b7.timestamp
- Size 46B
- SHA256 651ca51c29b2bc1a52ae33df6a76f4f139ee3d92e780f937118f1190b949949e
- MD5 cc2a20c4843bc024a3027e164c4c6637
- SHA1 52a14d38171aaab60e9e224339cc69bd5465fcb4
- SHA512 763db56445217fdca33cba3a328b5cb3a700736eb41c05033d321b983bb9cd7d526dd71cc23057a9d08d41e7a59651d8705f9a644fefaf765fe62cf2ff0859d9
- MD5 SHA1 SHA512
- Path C:\ProgramData\Oracle\Java\.oracle_jre_usage\3903daac9bc4a3b7.timestamp
- Size 46B
- SHA256 70c05aab01ee0e56d6a6d76152bf4fe718b072ebe0b5af3b58ad9ca2af9eef1b
- MD5 7cf82b49e23f43016e440e0e9c0d4a9a
- SHA1 7905f6491f06e104f86bc2ee497cec566ac9e715
- SHA512 302eec1f4d0378a8aee357a86c57af65faa95e0c82e84b5d9cb6f246eed14c039732ed136d0954cf093d812d672928576a44dbaa56535af01e04554d9469f7e0
- MD5 SHA1 SHA512
- Path C:\Users\Admin\27f117c2cdae0c702f1095bb7c6fe40d7efb18e4ac14d3eca5570ce1d24bac2c.jar
- Size 558KB
- SHA256 27f117c2cdae0c702f1095bb7c6fe40d7efb18e4ac14d3eca5570ce1d24bac2c
- MD5 cbc196fe2d418f1e6ad46cc906a1f6fa
- SHA1 cd0b7f45e2f5077b567f26b8bb0d553d6e605311
- SHA512 94694d8e7993696c9f871c027b072d4788130cfd6f9155a0fa451840bedbd6d70e544f0e567c6f5f4899b7a5f37c032decdbb8c29fe432709fdf6c7e5887a6ae
- SSDEEP 6144:FsoiTHc0JQc7jot+Tn3leT9OMiYNf2M57Qu1LJ5NIn4knrWIMXYMXs+72EE/20y/:FsogJItaeR/NucMu11INrWlX2/nyz+5w
- MD5 SHA1 SHA512 SSDEEP
- Path C:\Users\Admin\AppData\Local\Temp\jna-63116079\jna1607450667799360966.dll
- Size 241KB
- SHA256 a66959bec2ef5af730198db9f3b3f7cab0d4ae70ce01bec02bf1d738e6d1ee7a
- MD5 e02979ecd43bcc9061eb2b494ab5af50
- SHA1 3122ac0e751660f646c73b10c4f79685aa65c545
- SHA512 1e6f7dcb6a557c9b896412a48dd017c16f7a52fa2b9ab513593c9ecd118e86083979821ca7a3e2f098ee349200c823c759cec6599740dd391cb5f354dc29b372
- SSDEEP 6144:YW2uuBVCg2ZF0xk5udHB7EkAgEEz2Lh2LDh+MDWHNaL7yyubjmiy9NBW:YW2uAC9sVEZL0vdnz
- MD5 SHA1 SHA512 SSDEEP
- Path C:\Users\Admin\AppData\Roaming\Microsoft\Crypto\RSA\S-1-5-21-2994005945-4089876968-1367784197-1000\83aa4cc77f591dfc2374580bbd95f6ba_1237b9d7-f804-4a48-834e-966087ebd757
- Size 45B
- SHA256 11e6aca8e682c046c83b721eeb5c72c5ef03cb5936c60df6f4993511ddc61238
- MD5 c8366ae350e7019aefc9d1e6e6a498c6
- SHA1 5731d8a3e6568a5f2dfbbc87e3db9637df280b61
- SHA512 33c980d5a638bfc791de291ebf4b6d263b384247ab27f261a54025108f2f85374b579a026e545f81395736dd40fa4696f2163ca17640dd47f1c42bc9971b18cd
- MD5 SHA1 SHA512
- Path C:\Users\Admin\lib\jna-5.5.0.jar
- Size 1.4MB
- SHA256 b308faebfe4ed409de8410e0a632d164b2126b035f6eacff968d3908cafb4d9e
- MD5 acfb5b5fd9ee10bf69497792fd469f85
- SHA1 0e0845217c4907822403912ad6828d8e0b256208
- SHA512 e52575f58a195ceb3bd16b9740eadf5bc5b1d4d63c0734e8e5fd1d1776aa2d068d2e4c7173b83803f95f72c0a6759ae1c9b65773c734250d4cfcdf47a19f82aa
- SSDEEP 24576:BggLnybolJdaW+864NkqCUer8N7sSFOaj5lWOEMIKk6idJRWPTgzq3bICEz2lFO:BTnybo9aW+L5qCUO0xsiMPZrJgPLLIO6
- MD5 SHA1 SHA512 SSDEEP
- Path C:\Users\Admin\lib\jna-platform-5.5.0.jar
- Size 2.6MB
- SHA256 24d81621f82ac29fcdd9a74116031f5907a2343158e616f4573bbfa2434ae0d5
- MD5 2f4a99c2758e72ee2b59a73586a2322f
- SHA1 af38e7c4d0fc73c23ecd785443705bfdee5b90bf
- SHA512 b860459a0d3bf7ccb600a03aa1d2ac0358619ee89b2b96ed723541e182b6fdab53aefef7992acb4e03fca67aa47cbe3907b1e6060a60b57ed96c4e00c35c7494
- SSDEEP 24576:DyciOooDbK7Yw1J75n4BP/NtK2ov3mhDR6:3iOLDOZJ75nwtK2ovWh8
- MD5 SHA1 SHA512 SSDEEP
- Path C:\Users\Admin\lib\sqlite-jdbc-3.14.2.1.jar
- Size 4.1MB
- SHA256 2eae3dea1c3dde6104c49f9601074b6038ff6abcf3be23f4b56f6720a4f6a491
- MD5 b33387e15ab150a7bf560abdc73c3bec
- SHA1 66b8075784131f578ef893fd7674273f709b9a4c
- SHA512 25cfb0d6ce35d0bcb18527d3aa12c63ecb2d9c1b8b78805d1306e516c13480b79bb0d74730aa93bd1752f9ac2da9fdd51781c48844cea2fd52a06c62852c8279
- SSDEEP 98304:czJoX0izQbrabWo2MxgErRYxFOY8IsFWyTIiTIzMpca:cJoXHQKW9MxRr8wZZsikzMaa
- MD5 SHA1 SHA512 SSDEEP
- Path C:\Users\Admin\lib\system-hook-3.5.jar
- Size 772KB
- SHA256 2ddda8af6faef8bde46acf43ec546603180bcf8dcb2e5591fff8ac9cd30b5609
- MD5 e1aa38a1e78a76a6de73efae136cdb3a
- SHA1 c463da71871f780b2e2e5dba115d43953b537daf
- SHA512 fee16fe9364926ec337e52f551fd62ed81984808a847de2fd68ff29b6c5da0dcc04ef6d8977f0fe675662a7d2ea1065cdcdd2a5259446226a7c7c5516bd7d60d
- SSDEEP 24576:IhCFW8WXvOsWW9XGmvcVfkfTnzrLvadKPpv:IhCYWstW202t
- MD5 SHA1 SHA512 SSDEEP