Analysis
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max time kernel
146s -
max time network
149s -
platform
windows10-2004_x64 -
resource
win10v2004-20240426-en -
resource tags
arch:x64arch:x86image:win10v2004-20240426-enlocale:en-usos:windows10-2004-x64system -
submitted
08-06-2024 15:19
Static task
static1
Behavioral task
behavioral1
Sample
DOC000446.jar
Resource
win7-20240221-en
Behavioral task
behavioral2
Sample
DOC000446.jar
Resource
win10v2004-20240426-en
General
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Target
DOC000446.jar
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Size
448KB
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MD5
5f44aa92cda88f8b88f783f5ce2df636
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SHA1
f791bc786571bfb36e94ed6a293fa22304a5df78
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SHA256
85af8304fde85bfbd5323012e0f79fab0045a85943454c7757dece03686b049f
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SHA512
446a86271230343e77530136293ff29467d4166f0b812fc6cc99f53a516e492b21f0fe48fdb033f78db8e7a1620c32c00264d995f948f023ea608cdc2ccb5559
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SSDEEP
12288:c75igiDyZEO28Cabb5Je8wUYFkGnwce4U:8EyWO28CaRJVwdFk2Yh
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\DOC000446.jar java.exe -
Loads dropped DLL 1 IoCs
Processes:
java.exepid process 2620 java.exe -
Modifies file permissions 1 TTPs 1 IoCs
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Adds Run key to start application 2 TTPs 2 IoCs
Processes:
java.exedescription ioc process Set value (str) \REGISTRY\USER\S-1-5-21-3571316656-3665257725-2415531812-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\DOC000446 = "\"C:\\Program Files\\Java\\jre-1.8\\bin\\javaw.exe\" -jar \"C:\\Users\\Admin\\AppData\\Roaming\\DOC000446.jar\"" java.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\DOC000446 = "\"C:\\Program Files\\Java\\jre-1.8\\bin\\javaw.exe\" -jar \"C:\\Users\\Admin\\AppData\\Roaming\\DOC000446.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 28 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.
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Suspicious use of AdjustPrivilegeToken 64 IoCs
Processes:
WMIC.exeWMIC.exedescription pid process Token: SeIncreaseQuotaPrivilege 4976 WMIC.exe Token: SeSecurityPrivilege 4976 WMIC.exe Token: SeTakeOwnershipPrivilege 4976 WMIC.exe Token: SeLoadDriverPrivilege 4976 WMIC.exe Token: SeSystemProfilePrivilege 4976 WMIC.exe Token: SeSystemtimePrivilege 4976 WMIC.exe Token: SeProfSingleProcessPrivilege 4976 WMIC.exe Token: SeIncBasePriorityPrivilege 4976 WMIC.exe Token: SeCreatePagefilePrivilege 4976 WMIC.exe Token: SeBackupPrivilege 4976 WMIC.exe Token: SeRestorePrivilege 4976 WMIC.exe Token: SeShutdownPrivilege 4976 WMIC.exe Token: SeDebugPrivilege 4976 WMIC.exe Token: SeSystemEnvironmentPrivilege 4976 WMIC.exe Token: SeRemoteShutdownPrivilege 4976 WMIC.exe Token: SeUndockPrivilege 4976 WMIC.exe Token: SeManageVolumePrivilege 4976 WMIC.exe Token: 33 4976 WMIC.exe Token: 34 4976 WMIC.exe Token: 35 4976 WMIC.exe Token: 36 4976 WMIC.exe Token: SeIncreaseQuotaPrivilege 4976 WMIC.exe Token: SeSecurityPrivilege 4976 WMIC.exe Token: SeTakeOwnershipPrivilege 4976 WMIC.exe Token: SeLoadDriverPrivilege 4976 WMIC.exe Token: SeSystemProfilePrivilege 4976 WMIC.exe Token: SeSystemtimePrivilege 4976 WMIC.exe Token: SeProfSingleProcessPrivilege 4976 WMIC.exe Token: SeIncBasePriorityPrivilege 4976 WMIC.exe Token: SeCreatePagefilePrivilege 4976 WMIC.exe Token: SeBackupPrivilege 4976 WMIC.exe Token: SeRestorePrivilege 4976 WMIC.exe Token: SeShutdownPrivilege 4976 WMIC.exe Token: SeDebugPrivilege 4976 WMIC.exe Token: SeSystemEnvironmentPrivilege 4976 WMIC.exe Token: SeRemoteShutdownPrivilege 4976 WMIC.exe Token: SeUndockPrivilege 4976 WMIC.exe Token: SeManageVolumePrivilege 4976 WMIC.exe Token: 33 4976 WMIC.exe Token: 34 4976 WMIC.exe Token: 35 4976 WMIC.exe Token: 36 4976 WMIC.exe Token: SeIncreaseQuotaPrivilege 1228 WMIC.exe Token: SeSecurityPrivilege 1228 WMIC.exe Token: SeTakeOwnershipPrivilege 1228 WMIC.exe Token: SeLoadDriverPrivilege 1228 WMIC.exe Token: SeSystemProfilePrivilege 1228 WMIC.exe Token: SeSystemtimePrivilege 1228 WMIC.exe Token: SeProfSingleProcessPrivilege 1228 WMIC.exe Token: SeIncBasePriorityPrivilege 1228 WMIC.exe Token: SeCreatePagefilePrivilege 1228 WMIC.exe Token: SeBackupPrivilege 1228 WMIC.exe Token: SeRestorePrivilege 1228 WMIC.exe Token: SeShutdownPrivilege 1228 WMIC.exe Token: SeDebugPrivilege 1228 WMIC.exe Token: SeSystemEnvironmentPrivilege 1228 WMIC.exe Token: SeRemoteShutdownPrivilege 1228 WMIC.exe Token: SeUndockPrivilege 1228 WMIC.exe Token: SeManageVolumePrivilege 1228 WMIC.exe Token: 33 1228 WMIC.exe Token: 34 1228 WMIC.exe Token: 35 1228 WMIC.exe Token: 36 1228 WMIC.exe Token: SeIncreaseQuotaPrivilege 1228 WMIC.exe -
Suspicious use of WriteProcessMemory 26 IoCs
Processes:
java.exejava.execmd.exejava.execmd.execmd.execmd.execmd.exedescription pid process target process PID 3164 wrote to memory of 860 3164 java.exe icacls.exe PID 3164 wrote to memory of 860 3164 java.exe icacls.exe PID 3164 wrote to memory of 4896 3164 java.exe java.exe PID 3164 wrote to memory of 4896 3164 java.exe java.exe PID 4896 wrote to memory of 1140 4896 java.exe cmd.exe PID 4896 wrote to memory of 1140 4896 java.exe cmd.exe PID 4896 wrote to memory of 2620 4896 java.exe java.exe PID 4896 wrote to memory of 2620 4896 java.exe java.exe PID 1140 wrote to memory of 2556 1140 cmd.exe schtasks.exe PID 1140 wrote to memory of 2556 1140 cmd.exe schtasks.exe PID 2620 wrote to memory of 2316 2620 java.exe cmd.exe PID 2620 wrote to memory of 2316 2620 java.exe cmd.exe PID 2316 wrote to memory of 4976 2316 cmd.exe WMIC.exe PID 2316 wrote to memory of 4976 2316 cmd.exe WMIC.exe PID 2620 wrote to memory of 1180 2620 java.exe cmd.exe PID 2620 wrote to memory of 1180 2620 java.exe cmd.exe PID 1180 wrote to memory of 1228 1180 cmd.exe WMIC.exe PID 1180 wrote to memory of 1228 1180 cmd.exe WMIC.exe PID 2620 wrote to memory of 4124 2620 java.exe cmd.exe PID 2620 wrote to memory of 4124 2620 java.exe cmd.exe PID 4124 wrote to memory of 4716 4124 cmd.exe WMIC.exe PID 4124 wrote to memory of 4716 4124 cmd.exe WMIC.exe PID 2620 wrote to memory of 3264 2620 java.exe cmd.exe PID 2620 wrote to memory of 3264 2620 java.exe cmd.exe PID 3264 wrote to memory of 2784 3264 cmd.exe WMIC.exe PID 3264 wrote to memory of 2784 3264 cmd.exe WMIC.exe -
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\DOC000446.jar1⤵
- Suspicious use of WriteProcessMemory
PID:3164 -
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:860
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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\DOC000446.jar"2⤵
- Drops startup file
- Adds Run key to start application
- Suspicious use of WriteProcessMemory
PID:4896 -
C:\Windows\SYSTEM32\cmd.execmd /c schtasks /create /sc minute /mo 30 /tn Skype /tr "C:\Users\Admin\AppData\Roaming\DOC000446.jar"3⤵
- Suspicious use of WriteProcessMemory
PID:1140 -
C:\Windows\system32\schtasks.exeschtasks /create /sc minute /mo 30 /tn Skype /tr "C:\Users\Admin\AppData\Roaming\DOC000446.jar"4⤵
- Creates scheduled task(s)
PID:2556
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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\DOC000446.jar"3⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2620 -
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:2316 -
C:\Windows\System32\Wbem\WMIC.exewmic /node:. /namespace:'\\root\cimv2' path win32_logicaldisk get volumeserialnumber /format:list5⤵
- Suspicious use of AdjustPrivilegeToken
PID:4976
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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:1180 -
C:\Windows\System32\Wbem\WMIC.exewmic /node:. /namespace:'\\root\cimv2' path win32_operatingsystem get caption,OSArchitecture /format:list5⤵
- Suspicious use of AdjustPrivilegeToken
PID:1228
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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:4124 -
C:\Windows\System32\Wbem\WMIC.exewmic /node:. /namespace:'\\root\cimv2' path win32_operatingsystem get version /format:list5⤵PID:4716
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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:3264 -
C:\Windows\System32\Wbem\WMIC.exewmic /node:localhost /namespace:'\\root\securitycenter2' path antivirusproduct get displayname /format:list5⤵PID:2784
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
46B
MD5f5d3e925e551b5adb5201dad25908c4c
SHA172bc3112717ffd2fb91cff0e71e50f1adb1bf026
SHA256161dd125623324e3f1902fad14a96677368c8c7783d7f91f8bf02bb3f04ccee3
SHA51252adab77f002ebf3e50aa42309692906f91359d8bc850cb21a8a8db163367cb68b8ed9ce5b70a3493c45a6431703f54171ba30a6206c8e1f28c1d8ac22a6fa6b
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MD5
d41d8cd98f00b204e9800998ecf8427e
SHA1da39a3ee5e6b4b0d3255bfef95601890afd80709
SHA256e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855
SHA512cf83e1357eefb8bdf1542850d66d8007d620e4050b5715dc83f4a921d36ce9ce47d0d13c5d85f2b0ff8318d2877eec2f63b931bd47417a81a538327af927da3e
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Filesize
241KB
MD5e02979ecd43bcc9061eb2b494ab5af50
SHA13122ac0e751660f646c73b10c4f79685aa65c545
SHA256a66959bec2ef5af730198db9f3b3f7cab0d4ae70ce01bec02bf1d738e6d1ee7a
SHA5121e6f7dcb6a557c9b896412a48dd017c16f7a52fa2b9ab513593c9ecd118e86083979821ca7a3e2f098ee349200c823c759cec6599740dd391cb5f354dc29b372
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C:\Users\Admin\AppData\Roaming\Microsoft\Crypto\RSA\S-1-5-21-3571316656-3665257725-2415531812-1000\83aa4cc77f591dfc2374580bbd95f6ba_a47c70d8-7adc-4ad7-994f-644a8c84c176
Filesize45B
MD5c8366ae350e7019aefc9d1e6e6a498c6
SHA15731d8a3e6568a5f2dfbbc87e3db9637df280b61
SHA25611e6aca8e682c046c83b721eeb5c72c5ef03cb5936c60df6f4993511ddc61238
SHA51233c980d5a638bfc791de291ebf4b6d263b384247ab27f261a54025108f2f85374b579a026e545f81395736dd40fa4696f2163ca17640dd47f1c42bc9971b18cd
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Filesize
448KB
MD55f44aa92cda88f8b88f783f5ce2df636
SHA1f791bc786571bfb36e94ed6a293fa22304a5df78
SHA25685af8304fde85bfbd5323012e0f79fab0045a85943454c7757dece03686b049f
SHA512446a86271230343e77530136293ff29467d4166f0b812fc6cc99f53a516e492b21f0fe48fdb033f78db8e7a1620c32c00264d995f948f023ea608cdc2ccb5559
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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