Analysis
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max time kernel
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max time network
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platform
windows10-2004_x64 -
resource
win10v2004-20240802-en -
resource tags
arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system -
submitted
21-08-2024 01:30
Static task
static1
Behavioral task
behavioral1
Sample
42b99bbf0961d2c5a4dfeeea07f85733eed2ce2f5571904453ae56c4e6e90c7f.jar
Resource
win7-20240705-en
Behavioral task
behavioral2
Sample
42b99bbf0961d2c5a4dfeeea07f85733eed2ce2f5571904453ae56c4e6e90c7f.jar
Resource
win10v2004-20240802-en
General
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Target
42b99bbf0961d2c5a4dfeeea07f85733eed2ce2f5571904453ae56c4e6e90c7f.jar
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Size
400KB
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MD5
f6b06af9e65718cfa313431a653f4663
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SHA1
b4ee8f08a515201ad692c2252f8259611ae245a3
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SHA256
42b99bbf0961d2c5a4dfeeea07f85733eed2ce2f5571904453ae56c4e6e90c7f
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SHA512
989f546273b1ed0beabb85de886c0edf24f95f605a1c33c0457e900af4f86100b27398dc94a2fdc5b99c5075755d13a75e3535c6912350efaaf6d1077ce21a63
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SSDEEP
12288:WXN+HTi58brPDRsjv7L35TCjcjNP9iNau:WdaTi5SCnpnP9Qx
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\42b99bbf0961d2c5a4dfeeea07f85733eed2ce2f5571904453ae56c4e6e90c7f.jar java.exe -
Loads dropped DLL 1 IoCs
Processes:
java.exepid Process 4464 java.exe -
Adds Run key to start application 2 TTPs 2 IoCs
Processes:
java.exedescription ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-1302416131-1437503476-2806442725-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\42b99bbf0961d2c5a4dfeeea07f85733eed2ce2f5571904453ae56c4e6e90c7f = "\"C:\\Program Files\\Java\\jre-1.8\\bin\\javaw.exe\" -jar \"C:\\Users\\Admin\\AppData\\Roaming\\42b99bbf0961d2c5a4dfeeea07f85733eed2ce2f5571904453ae56c4e6e90c7f.jar\"" java.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\42b99bbf0961d2c5a4dfeeea07f85733eed2ce2f5571904453ae56c4e6e90c7f = "\"C:\\Program Files\\Java\\jre-1.8\\bin\\javaw.exe\" -jar \"C:\\Users\\Admin\\AppData\\Roaming\\42b99bbf0961d2c5a4dfeeea07f85733eed2ce2f5571904453ae56c4e6e90c7f.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 34 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 1748 WMIC.exe Token: SeSecurityPrivilege 1748 WMIC.exe Token: SeTakeOwnershipPrivilege 1748 WMIC.exe Token: SeLoadDriverPrivilege 1748 WMIC.exe Token: SeSystemProfilePrivilege 1748 WMIC.exe Token: SeSystemtimePrivilege 1748 WMIC.exe Token: SeProfSingleProcessPrivilege 1748 WMIC.exe Token: SeIncBasePriorityPrivilege 1748 WMIC.exe Token: SeCreatePagefilePrivilege 1748 WMIC.exe Token: SeBackupPrivilege 1748 WMIC.exe Token: SeRestorePrivilege 1748 WMIC.exe Token: SeShutdownPrivilege 1748 WMIC.exe Token: SeDebugPrivilege 1748 WMIC.exe Token: SeSystemEnvironmentPrivilege 1748 WMIC.exe Token: SeRemoteShutdownPrivilege 1748 WMIC.exe Token: SeUndockPrivilege 1748 WMIC.exe Token: SeManageVolumePrivilege 1748 WMIC.exe Token: 33 1748 WMIC.exe Token: 34 1748 WMIC.exe Token: 35 1748 WMIC.exe Token: 36 1748 WMIC.exe Token: SeIncreaseQuotaPrivilege 1748 WMIC.exe Token: SeSecurityPrivilege 1748 WMIC.exe Token: SeTakeOwnershipPrivilege 1748 WMIC.exe Token: SeLoadDriverPrivilege 1748 WMIC.exe Token: SeSystemProfilePrivilege 1748 WMIC.exe Token: SeSystemtimePrivilege 1748 WMIC.exe Token: SeProfSingleProcessPrivilege 1748 WMIC.exe Token: SeIncBasePriorityPrivilege 1748 WMIC.exe Token: SeCreatePagefilePrivilege 1748 WMIC.exe Token: SeBackupPrivilege 1748 WMIC.exe Token: SeRestorePrivilege 1748 WMIC.exe Token: SeShutdownPrivilege 1748 WMIC.exe Token: SeDebugPrivilege 1748 WMIC.exe Token: SeSystemEnvironmentPrivilege 1748 WMIC.exe Token: SeRemoteShutdownPrivilege 1748 WMIC.exe Token: SeUndockPrivilege 1748 WMIC.exe Token: SeManageVolumePrivilege 1748 WMIC.exe Token: 33 1748 WMIC.exe Token: 34 1748 WMIC.exe Token: 35 1748 WMIC.exe Token: 36 1748 WMIC.exe Token: SeIncreaseQuotaPrivilege 4868 WMIC.exe Token: SeSecurityPrivilege 4868 WMIC.exe Token: SeTakeOwnershipPrivilege 4868 WMIC.exe Token: SeLoadDriverPrivilege 4868 WMIC.exe Token: SeSystemProfilePrivilege 4868 WMIC.exe Token: SeSystemtimePrivilege 4868 WMIC.exe Token: SeProfSingleProcessPrivilege 4868 WMIC.exe Token: SeIncBasePriorityPrivilege 4868 WMIC.exe Token: SeCreatePagefilePrivilege 4868 WMIC.exe Token: SeBackupPrivilege 4868 WMIC.exe Token: SeRestorePrivilege 4868 WMIC.exe Token: SeShutdownPrivilege 4868 WMIC.exe Token: SeDebugPrivilege 4868 WMIC.exe Token: SeSystemEnvironmentPrivilege 4868 WMIC.exe Token: SeRemoteShutdownPrivilege 4868 WMIC.exe Token: SeUndockPrivilege 4868 WMIC.exe Token: SeManageVolumePrivilege 4868 WMIC.exe Token: 33 4868 WMIC.exe Token: 34 4868 WMIC.exe Token: 35 4868 WMIC.exe Token: 36 4868 WMIC.exe Token: SeIncreaseQuotaPrivilege 4868 WMIC.exe -
Suspicious use of WriteProcessMemory 24 IoCs
Processes:
java.exejava.execmd.exejava.execmd.execmd.execmd.execmd.exedescription pid Process procid_target PID 624 wrote to memory of 3388 624 java.exe 91 PID 624 wrote to memory of 3388 624 java.exe 91 PID 3388 wrote to memory of 4752 3388 java.exe 93 PID 3388 wrote to memory of 4752 3388 java.exe 93 PID 3388 wrote to memory of 4464 3388 java.exe 94 PID 3388 wrote to memory of 4464 3388 java.exe 94 PID 4752 wrote to memory of 2200 4752 cmd.exe 97 PID 4752 wrote to memory of 2200 4752 cmd.exe 97 PID 4464 wrote to memory of 2132 4464 java.exe 99 PID 4464 wrote to memory of 2132 4464 java.exe 99 PID 2132 wrote to memory of 1748 2132 cmd.exe 101 PID 2132 wrote to memory of 1748 2132 cmd.exe 101 PID 4464 wrote to memory of 1940 4464 java.exe 102 PID 4464 wrote to memory of 1940 4464 java.exe 102 PID 1940 wrote to memory of 4868 1940 cmd.exe 104 PID 1940 wrote to memory of 4868 1940 cmd.exe 104 PID 4464 wrote to memory of 3108 4464 java.exe 105 PID 4464 wrote to memory of 3108 4464 java.exe 105 PID 3108 wrote to memory of 4276 3108 cmd.exe 107 PID 3108 wrote to memory of 4276 3108 cmd.exe 107 PID 4464 wrote to memory of 4780 4464 java.exe 108 PID 4464 wrote to memory of 4780 4464 java.exe 108 PID 4780 wrote to memory of 1908 4780 cmd.exe 110 PID 4780 wrote to memory of 1908 4780 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\42b99bbf0961d2c5a4dfeeea07f85733eed2ce2f5571904453ae56c4e6e90c7f.jar1⤵
- Suspicious use of WriteProcessMemory
PID:624 -
C:\Program Files\Java\jre-1.8\bin\java.exe"C:\Program Files\Java\jre-1.8\bin\java.exe" -jar "C:\Users\Admin\42b99bbf0961d2c5a4dfeeea07f85733eed2ce2f5571904453ae56c4e6e90c7f.jar"2⤵
- Drops startup file
- Adds Run key to start application
- Suspicious use of WriteProcessMemory
PID:3388 -
C:\Windows\SYSTEM32\cmd.execmd /c schtasks /create /sc minute /mo 30 /tn Skype /tr "C:\Users\Admin\AppData\Roaming\42b99bbf0961d2c5a4dfeeea07f85733eed2ce2f5571904453ae56c4e6e90c7f.jar"3⤵
- Suspicious use of WriteProcessMemory
PID:4752 -
C:\Windows\system32\schtasks.exeschtasks /create /sc minute /mo 30 /tn Skype /tr "C:\Users\Admin\AppData\Roaming\42b99bbf0961d2c5a4dfeeea07f85733eed2ce2f5571904453ae56c4e6e90c7f.jar"4⤵
- Scheduled Task/Job: Scheduled Task
PID:2200
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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\42b99bbf0961d2c5a4dfeeea07f85733eed2ce2f5571904453ae56c4e6e90c7f.jar"3⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:4464 -
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:2132 -
C:\Windows\System32\Wbem\WMIC.exewmic /node:. /namespace:'\\root\cimv2' path win32_logicaldisk get volumeserialnumber /format:list5⤵
- Suspicious use of AdjustPrivilegeToken
PID:1748
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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:1940 -
C:\Windows\System32\Wbem\WMIC.exewmic /node:. /namespace:'\\root\cimv2' path win32_operatingsystem get caption,OSArchitecture /format:list5⤵
- Suspicious use of AdjustPrivilegeToken
PID:4868
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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:3108 -
C:\Windows\System32\Wbem\WMIC.exewmic /node:. /namespace:'\\root\cimv2' path win32_operatingsystem get version /format:list5⤵PID:4276
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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:4780 -
C:\Windows\System32\Wbem\WMIC.exewmic /node:localhost /namespace:'\\root\securitycenter2' path antivirusproduct get displayname /format:list5⤵PID:1908
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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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MD5
d41d8cd98f00b204e9800998ecf8427e
SHA1da39a3ee5e6b4b0d3255bfef95601890afd80709
SHA256e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855
SHA512cf83e1357eefb8bdf1542850d66d8007d620e4050b5715dc83f4a921d36ce9ce47d0d13c5d85f2b0ff8318d2877eec2f63b931bd47417a81a538327af927da3e
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Filesize
400KB
MD5f6b06af9e65718cfa313431a653f4663
SHA1b4ee8f08a515201ad692c2252f8259611ae245a3
SHA25642b99bbf0961d2c5a4dfeeea07f85733eed2ce2f5571904453ae56c4e6e90c7f
SHA512989f546273b1ed0beabb85de886c0edf24f95f605a1c33c0457e900af4f86100b27398dc94a2fdc5b99c5075755d13a75e3535c6912350efaaf6d1077ce21a63
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Filesize
241KB
MD5e02979ecd43bcc9061eb2b494ab5af50
SHA13122ac0e751660f646c73b10c4f79685aa65c545
SHA256a66959bec2ef5af730198db9f3b3f7cab0d4ae70ce01bec02bf1d738e6d1ee7a
SHA5121e6f7dcb6a557c9b896412a48dd017c16f7a52fa2b9ab513593c9ecd118e86083979821ca7a3e2f098ee349200c823c759cec6599740dd391cb5f354dc29b372
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C:\Users\Admin\AppData\Roaming\Microsoft\Crypto\RSA\S-1-5-21-1302416131-1437503476-2806442725-1000\83aa4cc77f591dfc2374580bbd95f6ba_acd03e19-89e2-40d7-b0f4-25b8a05635ee
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