Analysis
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max time kernel
150s -
max time network
157s -
platform
windows10-2004_x64 -
resource
win10v2004-20240226-en -
resource tags
arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system -
submitted
06/06/2024, 15:13
Static task
static1
Behavioral task
behavioral1
Sample
NERT_05_06_2024_PDF.jar
Resource
win7-20240221-en
Behavioral task
behavioral2
Sample
NERT_05_06_2024_PDF.jar
Resource
win10v2004-20240226-en
General
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Target
NERT_05_06_2024_PDF.jar
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Size
546KB
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MD5
363e51d5d985e8ed4784429b8af87790
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SHA1
8172cac68e512641e7e2347bbec9613cfb10389d
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SHA256
2abfed09bc56ccecb1c01b8a9f68ab7a7a53ea1d6a3a1a598a3914d8a71e4187
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SHA512
1a298144036564511683468e65612b37e6f5b0fc475babaa73cb07c5d4f984cb1d21571b86b3e0b8d7319224e964d3b8a744927560dd69d8fffa89e5c7c5953f
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SSDEEP
6144:gmnhGkb/R8Jgn3l7v7ja8qRIXKdANNJ4D1EpDR9d+uOphJqxAQhoys4LV:gmEuJ8ul7v7ja8q8tNH429x+QTV
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\NERT_05_06_2024_PDF.jar java.exe -
Loads dropped DLL 1 IoCs
pid Process 3148 java.exe -
Modifies file permissions 1 TTPs 1 IoCs
pid Process 3996 icacls.exe -
Adds Run key to start application 2 TTPs 2 IoCs
description ioc Process Set value (str) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\NERT_05_06_2024_PDF = "\"C:\\Program Files\\Java\\jre-1.8\\bin\\javaw.exe\" -jar \"C:\\Users\\Admin\\AppData\\Roaming\\NERT_05_06_2024_PDF.jar\"" java.exe Set value (str) \REGISTRY\USER\S-1-5-21-3808065738-1666277613-1125846146-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\NERT_05_06_2024_PDF = "\"C:\\Program Files\\Java\\jre-1.8\\bin\\javaw.exe\" -jar \"C:\\Users\\Admin\\AppData\\Roaming\\NERT_05_06_2024_PDF.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 40 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 4776 schtasks.exe -
Suspicious use of AdjustPrivilegeToken 64 IoCs
description pid Process Token: SeIncreaseQuotaPrivilege 4304 WMIC.exe Token: SeSecurityPrivilege 4304 WMIC.exe Token: SeTakeOwnershipPrivilege 4304 WMIC.exe Token: SeLoadDriverPrivilege 4304 WMIC.exe Token: SeSystemProfilePrivilege 4304 WMIC.exe Token: SeSystemtimePrivilege 4304 WMIC.exe Token: SeProfSingleProcessPrivilege 4304 WMIC.exe Token: SeIncBasePriorityPrivilege 4304 WMIC.exe Token: SeCreatePagefilePrivilege 4304 WMIC.exe Token: SeBackupPrivilege 4304 WMIC.exe Token: SeRestorePrivilege 4304 WMIC.exe Token: SeShutdownPrivilege 4304 WMIC.exe Token: SeDebugPrivilege 4304 WMIC.exe Token: SeSystemEnvironmentPrivilege 4304 WMIC.exe Token: SeRemoteShutdownPrivilege 4304 WMIC.exe Token: SeUndockPrivilege 4304 WMIC.exe Token: SeManageVolumePrivilege 4304 WMIC.exe Token: 33 4304 WMIC.exe Token: 34 4304 WMIC.exe Token: 35 4304 WMIC.exe Token: 36 4304 WMIC.exe Token: SeIncreaseQuotaPrivilege 4304 WMIC.exe Token: SeSecurityPrivilege 4304 WMIC.exe Token: SeTakeOwnershipPrivilege 4304 WMIC.exe Token: SeLoadDriverPrivilege 4304 WMIC.exe Token: SeSystemProfilePrivilege 4304 WMIC.exe Token: SeSystemtimePrivilege 4304 WMIC.exe Token: SeProfSingleProcessPrivilege 4304 WMIC.exe Token: SeIncBasePriorityPrivilege 4304 WMIC.exe Token: SeCreatePagefilePrivilege 4304 WMIC.exe Token: SeBackupPrivilege 4304 WMIC.exe Token: SeRestorePrivilege 4304 WMIC.exe Token: SeShutdownPrivilege 4304 WMIC.exe Token: SeDebugPrivilege 4304 WMIC.exe Token: SeSystemEnvironmentPrivilege 4304 WMIC.exe Token: SeRemoteShutdownPrivilege 4304 WMIC.exe Token: SeUndockPrivilege 4304 WMIC.exe Token: SeManageVolumePrivilege 4304 WMIC.exe Token: 33 4304 WMIC.exe Token: 34 4304 WMIC.exe Token: 35 4304 WMIC.exe Token: 36 4304 WMIC.exe Token: SeIncreaseQuotaPrivilege 2056 WMIC.exe Token: SeSecurityPrivilege 2056 WMIC.exe Token: SeTakeOwnershipPrivilege 2056 WMIC.exe Token: SeLoadDriverPrivilege 2056 WMIC.exe Token: SeSystemProfilePrivilege 2056 WMIC.exe Token: SeSystemtimePrivilege 2056 WMIC.exe Token: SeProfSingleProcessPrivilege 2056 WMIC.exe Token: SeIncBasePriorityPrivilege 2056 WMIC.exe Token: SeCreatePagefilePrivilege 2056 WMIC.exe Token: SeBackupPrivilege 2056 WMIC.exe Token: SeRestorePrivilege 2056 WMIC.exe Token: SeShutdownPrivilege 2056 WMIC.exe Token: SeDebugPrivilege 2056 WMIC.exe Token: SeSystemEnvironmentPrivilege 2056 WMIC.exe Token: SeRemoteShutdownPrivilege 2056 WMIC.exe Token: SeUndockPrivilege 2056 WMIC.exe Token: SeManageVolumePrivilege 2056 WMIC.exe Token: 33 2056 WMIC.exe Token: 34 2056 WMIC.exe Token: 35 2056 WMIC.exe Token: 36 2056 WMIC.exe Token: SeIncreaseQuotaPrivilege 2056 WMIC.exe -
Suspicious use of WriteProcessMemory 26 IoCs
description pid Process procid_target PID 3672 wrote to memory of 3996 3672 java.exe 92 PID 3672 wrote to memory of 3996 3672 java.exe 92 PID 3672 wrote to memory of 2452 3672 java.exe 97 PID 3672 wrote to memory of 2452 3672 java.exe 97 PID 2452 wrote to memory of 4356 2452 java.exe 101 PID 2452 wrote to memory of 4356 2452 java.exe 101 PID 2452 wrote to memory of 3148 2452 java.exe 102 PID 2452 wrote to memory of 3148 2452 java.exe 102 PID 4356 wrote to memory of 4776 4356 cmd.exe 105 PID 4356 wrote to memory of 4776 4356 cmd.exe 105 PID 3148 wrote to memory of 2628 3148 java.exe 108 PID 3148 wrote to memory of 2628 3148 java.exe 108 PID 2628 wrote to memory of 4304 2628 cmd.exe 110 PID 2628 wrote to memory of 4304 2628 cmd.exe 110 PID 3148 wrote to memory of 1808 3148 java.exe 111 PID 3148 wrote to memory of 1808 3148 java.exe 111 PID 1808 wrote to memory of 2056 1808 cmd.exe 113 PID 1808 wrote to memory of 2056 1808 cmd.exe 113 PID 3148 wrote to memory of 2544 3148 java.exe 114 PID 3148 wrote to memory of 2544 3148 java.exe 114 PID 2544 wrote to memory of 3940 2544 cmd.exe 116 PID 2544 wrote to memory of 3940 2544 cmd.exe 116 PID 3148 wrote to memory of 4352 3148 java.exe 117 PID 3148 wrote to memory of 4352 3148 java.exe 117 PID 4352 wrote to memory of 3516 4352 cmd.exe 119 PID 4352 wrote to memory of 3516 4352 cmd.exe 119 -
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\NERT_05_06_2024_PDF.jar1⤵
- Suspicious use of WriteProcessMemory
PID:3672 -
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:3996
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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\NERT_05_06_2024_PDF.jar"2⤵
- Drops startup file
- Adds Run key to start application
- Suspicious use of WriteProcessMemory
PID:2452 -
C:\Windows\SYSTEM32\cmd.execmd /c schtasks /create /sc minute /mo 30 /tn Skype /tr "C:\Users\Admin\AppData\Roaming\NERT_05_06_2024_PDF.jar"3⤵
- Suspicious use of WriteProcessMemory
PID:4356 -
C:\Windows\system32\schtasks.exeschtasks /create /sc minute /mo 30 /tn Skype /tr "C:\Users\Admin\AppData\Roaming\NERT_05_06_2024_PDF.jar"4⤵
- Creates scheduled task(s)
PID:4776
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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\NERT_05_06_2024_PDF.jar"3⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:3148 -
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:2628 -
C:\Windows\System32\Wbem\WMIC.exewmic /node:. /namespace:'\\root\cimv2' path win32_logicaldisk get volumeserialnumber /format:list5⤵
- Suspicious use of AdjustPrivilegeToken
PID:4304
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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:1808 -
C:\Windows\System32\Wbem\WMIC.exewmic /node:. /namespace:'\\root\cimv2' path win32_operatingsystem get caption,OSArchitecture /format:list5⤵
- Suspicious use of AdjustPrivilegeToken
PID:2056
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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:2544 -
C:\Windows\System32\Wbem\WMIC.exewmic /node:. /namespace:'\\root\cimv2' path win32_operatingsystem get version /format:list5⤵PID:3940
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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:4352 -
C:\Windows\System32\Wbem\WMIC.exewmic /node:localhost /namespace:'\\root\securitycenter2' path antivirusproduct get displayname /format:list5⤵PID:3516
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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=5420 --field-trial-handle=3084,i,4016110471176367543,14287608422419064331,262144 --variations-seed-version /prefetch:81⤵PID:404
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
46B
MD546cd601249d78fb22f6ce8dfd96ebb57
SHA13e6202fb3baf71b03304741d16714eccad8ebc07
SHA256e5a2cf7fa9fc7e825213f9bd02c6bf17c1e9e8a2a1040a84a820ff5c3a443050
SHA5128f8208ee8a7d1f1cc7cd323de2e5da34356023176051518ef4f1a31db5a2ee1979bda7fa65bed6113e379e041330848d2c589e0ea60cac8862d3c1e7352611e6
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Filesize
46B
MD509a7ba8f0751ba096650e8776a259b9e
SHA1bf7d8a4160ca9faf9e81aa7b79a4f0793771595f
SHA256308c1db3a46546ae2bdec556342109b297d7d8066f44f7be3f8a0976f823511f
SHA51248fe0f0bc2c6c0269d4cfe24a8f234f700d4db046aa34f702e1d900dc2274575dbdf7bfed1f0b69283bb5e639cfef19b960311da48f29e651e3a32b208dfc44e
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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
546KB
MD5363e51d5d985e8ed4784429b8af87790
SHA18172cac68e512641e7e2347bbec9613cfb10389d
SHA2562abfed09bc56ccecb1c01b8a9f68ab7a7a53ea1d6a3a1a598a3914d8a71e4187
SHA5121a298144036564511683468e65612b37e6f5b0fc475babaa73cb07c5d4f984cb1d21571b86b3e0b8d7319224e964d3b8a744927560dd69d8fffa89e5c7c5953f
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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