Analysis
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max time kernel
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max time network
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platform
windows10-2004_x64 -
resource
win10v2004-20240508-en -
resource tags
arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system -
submitted
12-05-2024 09:14
Static task
static1
Behavioral task
behavioral1
Sample
5c65955da2b6e996c378858d6a886bad85e969fd42509053794cb8ad64630894.js
Resource
win7-20240221-en
General
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Target
5c65955da2b6e996c378858d6a886bad85e969fd42509053794cb8ad64630894.js
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Size
348KB
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MD5
4bb46f4ad4dc8cfe2ef9476639538c9f
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SHA1
405e782ca65b2c85d3010ffbd44cbd394e8076e1
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SHA256
5c65955da2b6e996c378858d6a886bad85e969fd42509053794cb8ad64630894
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SHA512
be0cd76dcaa26f00b4d6b61f855e69513fd341b234b465f2394a471b7a6753bd416b620b6d2795b319f591c2497c8c0374a34913672bcd8a5eb8faee06e57af5
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SSDEEP
6144:FCrNm0YvnZIOE/gpukpiVogDsEOuJTKrk4qtiHPmKTvlCGiJTBj8rjFpnKqgWiQZ:gRmRvnZLxpcFT0qSTej8hNkJwnLXNT
Malware Config
Signatures
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Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
description ioc Process Key value queried \REGISTRY\USER\S-1-5-21-3558294865-3673844354-2255444939-1000\Control Panel\International\Geo\Nation wscript.exe -
Drops startup file 1 IoCs
description ioc Process File created C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\gkctrnd.txt java.exe -
Loads dropped DLL 1 IoCs
pid Process 1864 java.exe -
Modifies file permissions 1 TTPs 1 IoCs
pid Process 1164 icacls.exe -
Adds Run key to start application 2 TTPs 2 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-3558294865-3673844354-2255444939-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\gkctrnd = "\"C:\\Users\\Admin\\AppData\\Roaming\\gkctrnd.txt\"" java.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\gkctrnd = "\"C:\\Users\\Admin\\AppData\\Roaming\\gkctrnd.txt\"" 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 -
Command and Scripting Interpreter: JavaScript 1 TTPs
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Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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Creates scheduled task(s) 1 TTPs 1 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
pid Process 4664 schtasks.exe -
Suspicious use of AdjustPrivilegeToken 64 IoCs
description pid Process Token: SeIncreaseQuotaPrivilege 4264 WMIC.exe Token: SeSecurityPrivilege 4264 WMIC.exe Token: SeTakeOwnershipPrivilege 4264 WMIC.exe Token: SeLoadDriverPrivilege 4264 WMIC.exe Token: SeSystemProfilePrivilege 4264 WMIC.exe Token: SeSystemtimePrivilege 4264 WMIC.exe Token: SeProfSingleProcessPrivilege 4264 WMIC.exe Token: SeIncBasePriorityPrivilege 4264 WMIC.exe Token: SeCreatePagefilePrivilege 4264 WMIC.exe Token: SeBackupPrivilege 4264 WMIC.exe Token: SeRestorePrivilege 4264 WMIC.exe Token: SeShutdownPrivilege 4264 WMIC.exe Token: SeDebugPrivilege 4264 WMIC.exe Token: SeSystemEnvironmentPrivilege 4264 WMIC.exe Token: SeRemoteShutdownPrivilege 4264 WMIC.exe Token: SeUndockPrivilege 4264 WMIC.exe Token: SeManageVolumePrivilege 4264 WMIC.exe Token: 33 4264 WMIC.exe Token: 34 4264 WMIC.exe Token: 35 4264 WMIC.exe Token: 36 4264 WMIC.exe Token: SeIncreaseQuotaPrivilege 4264 WMIC.exe Token: SeSecurityPrivilege 4264 WMIC.exe Token: SeTakeOwnershipPrivilege 4264 WMIC.exe Token: SeLoadDriverPrivilege 4264 WMIC.exe Token: SeSystemProfilePrivilege 4264 WMIC.exe Token: SeSystemtimePrivilege 4264 WMIC.exe Token: SeProfSingleProcessPrivilege 4264 WMIC.exe Token: SeIncBasePriorityPrivilege 4264 WMIC.exe Token: SeCreatePagefilePrivilege 4264 WMIC.exe Token: SeBackupPrivilege 4264 WMIC.exe Token: SeRestorePrivilege 4264 WMIC.exe Token: SeShutdownPrivilege 4264 WMIC.exe Token: SeDebugPrivilege 4264 WMIC.exe Token: SeSystemEnvironmentPrivilege 4264 WMIC.exe Token: SeRemoteShutdownPrivilege 4264 WMIC.exe Token: SeUndockPrivilege 4264 WMIC.exe Token: SeManageVolumePrivilege 4264 WMIC.exe Token: 33 4264 WMIC.exe Token: 34 4264 WMIC.exe Token: 35 4264 WMIC.exe Token: 36 4264 WMIC.exe Token: SeIncreaseQuotaPrivilege 820 WMIC.exe Token: SeSecurityPrivilege 820 WMIC.exe Token: SeTakeOwnershipPrivilege 820 WMIC.exe Token: SeLoadDriverPrivilege 820 WMIC.exe Token: SeSystemProfilePrivilege 820 WMIC.exe Token: SeSystemtimePrivilege 820 WMIC.exe Token: SeProfSingleProcessPrivilege 820 WMIC.exe Token: SeIncBasePriorityPrivilege 820 WMIC.exe Token: SeCreatePagefilePrivilege 820 WMIC.exe Token: SeBackupPrivilege 820 WMIC.exe Token: SeRestorePrivilege 820 WMIC.exe Token: SeShutdownPrivilege 820 WMIC.exe Token: SeDebugPrivilege 820 WMIC.exe Token: SeSystemEnvironmentPrivilege 820 WMIC.exe Token: SeRemoteShutdownPrivilege 820 WMIC.exe Token: SeUndockPrivilege 820 WMIC.exe Token: SeManageVolumePrivilege 820 WMIC.exe Token: 33 820 WMIC.exe Token: 34 820 WMIC.exe Token: 35 820 WMIC.exe Token: 36 820 WMIC.exe Token: SeIncreaseQuotaPrivilege 820 WMIC.exe -
Suspicious use of WriteProcessMemory 28 IoCs
description pid Process procid_target PID 3648 wrote to memory of 1192 3648 wscript.exe 81 PID 3648 wrote to memory of 1192 3648 wscript.exe 81 PID 1192 wrote to memory of 1164 1192 javaw.exe 82 PID 1192 wrote to memory of 1164 1192 javaw.exe 82 PID 1192 wrote to memory of 1684 1192 javaw.exe 87 PID 1192 wrote to memory of 1684 1192 javaw.exe 87 PID 1684 wrote to memory of 2516 1684 java.exe 89 PID 1684 wrote to memory of 2516 1684 java.exe 89 PID 1684 wrote to memory of 1864 1684 java.exe 90 PID 1684 wrote to memory of 1864 1684 java.exe 90 PID 2516 wrote to memory of 4664 2516 cmd.exe 93 PID 2516 wrote to memory of 4664 2516 cmd.exe 93 PID 1864 wrote to memory of 3724 1864 java.exe 99 PID 1864 wrote to memory of 3724 1864 java.exe 99 PID 3724 wrote to memory of 4264 3724 cmd.exe 101 PID 3724 wrote to memory of 4264 3724 cmd.exe 101 PID 1864 wrote to memory of 5104 1864 java.exe 102 PID 1864 wrote to memory of 5104 1864 java.exe 102 PID 5104 wrote to memory of 820 5104 cmd.exe 104 PID 5104 wrote to memory of 820 5104 cmd.exe 104 PID 1864 wrote to memory of 2300 1864 java.exe 105 PID 1864 wrote to memory of 2300 1864 java.exe 105 PID 2300 wrote to memory of 1360 2300 cmd.exe 107 PID 2300 wrote to memory of 1360 2300 cmd.exe 107 PID 1864 wrote to memory of 2472 1864 java.exe 108 PID 1864 wrote to memory of 2472 1864 java.exe 108 PID 2472 wrote to memory of 852 2472 cmd.exe 110 PID 2472 wrote to memory of 852 2472 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:\Windows\system32\wscript.exewscript.exe C:\Users\Admin\AppData\Local\Temp\5c65955da2b6e996c378858d6a886bad85e969fd42509053794cb8ad64630894.js1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:3648 -
C:\Program Files\Java\jre-1.8\bin\javaw.exe"C:\Program Files\Java\jre-1.8\bin\javaw.exe" -jar "C:\Users\Admin\AppData\Roaming\gkctrnd.txt"2⤵
- Suspicious use of WriteProcessMemory
PID:1192 -
C:\Windows\system32\icacls.exeC:\Windows\system32\icacls.exe C:\ProgramData\Oracle\Java\.oracle_jre_usage /grant "everyone":(OI)(CI)M3⤵
- Modifies file permissions
PID:1164
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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\gkctrnd.txt"3⤵
- Drops startup file
- Adds Run key to start application
- Suspicious use of WriteProcessMemory
PID:1684 -
C:\Windows\SYSTEM32\cmd.execmd /c schtasks /create /sc minute /mo 30 /tn Skype /tr "C:\Users\Admin\AppData\Roaming\gkctrnd.txt"4⤵
- Suspicious use of WriteProcessMemory
PID:2516 -
C:\Windows\system32\schtasks.exeschtasks /create /sc minute /mo 30 /tn Skype /tr "C:\Users\Admin\AppData\Roaming\gkctrnd.txt"5⤵
- Creates scheduled task(s)
PID:4664
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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\gkctrnd.txt"4⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:1864 -
C:\Windows\SYSTEM32\cmd.execmd.exe /c "wmic /node:. /namespace:'\\root\cimv2' path win32_logicaldisk get volumeserialnumber /format:list"5⤵
- Suspicious use of WriteProcessMemory
PID:3724 -
C:\Windows\System32\Wbem\WMIC.exewmic /node:. /namespace:'\\root\cimv2' path win32_logicaldisk get volumeserialnumber /format:list6⤵
- Suspicious use of AdjustPrivilegeToken
PID:4264
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C:\Windows\SYSTEM32\cmd.execmd.exe /c "wmic /node:. /namespace:'\\root\cimv2' path win32_operatingsystem get caption,OSArchitecture /format:list"5⤵
- Suspicious use of WriteProcessMemory
PID:5104 -
C:\Windows\System32\Wbem\WMIC.exewmic /node:. /namespace:'\\root\cimv2' path win32_operatingsystem get caption,OSArchitecture /format:list6⤵
- Suspicious use of AdjustPrivilegeToken
PID:820
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C:\Windows\SYSTEM32\cmd.execmd.exe /c "wmic /node:. /namespace:'\\root\cimv2' path win32_operatingsystem get version /format:list"5⤵
- Suspicious use of WriteProcessMemory
PID:2300 -
C:\Windows\System32\Wbem\WMIC.exewmic /node:. /namespace:'\\root\cimv2' path win32_operatingsystem get version /format:list6⤵PID:1360
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C:\Windows\SYSTEM32\cmd.execmd.exe /c "wmic /node:localhost /namespace:'\\root\securitycenter2' path antivirusproduct get displayname /format:list"5⤵
- Suspicious use of WriteProcessMemory
PID:2472 -
C:\Windows\System32\Wbem\WMIC.exewmic /node:localhost /namespace:'\\root\securitycenter2' path antivirusproduct get displayname /format:list6⤵PID:852
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
Loading Replay Monitor...
Downloads
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Filesize
46B
MD587dedfe5df3f5ee2ccc049d1a9c165d1
SHA162e938880a293a8c4bdec548e3570643c10549ff
SHA256a2dad50d203639848d42adade7db0db5df52da9a597658718317d8d4c6bc12a3
SHA5125f09e71ed400476a12bbe5798852ae79ce52cf9ace49bc8f42395ebf25e99b079739472d27a071b68452c8c58262516f2c267e1e8d5169010e41b63a47cbb4f7
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Filesize
46B
MD5253ed6958d6207f15db219912663dc34
SHA1d009a9ec84f5f4ff4cfdcfbc742f9a1f923199b7
SHA256f6aea8ca34153f6e0754ea5ae9c14430075d4f479b61a8635ed9c21af3c84613
SHA512e35725bb0214f4435008afabe32e942e0df42d9f3834f1744df146b4e284441bfa17e66cb19c04fcbfd620a9c3267dbd89d0002e099386c0e43adccd9de003f9
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Filesize
241KB
MD5e02979ecd43bcc9061eb2b494ab5af50
SHA13122ac0e751660f646c73b10c4f79685aa65c545
SHA256a66959bec2ef5af730198db9f3b3f7cab0d4ae70ce01bec02bf1d738e6d1ee7a
SHA5121e6f7dcb6a557c9b896412a48dd017c16f7a52fa2b9ab513593c9ecd118e86083979821ca7a3e2f098ee349200c823c759cec6599740dd391cb5f354dc29b372
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C:\Users\Admin\AppData\Roaming\Microsoft\Crypto\RSA\S-1-5-21-3558294865-3673844354-2255444939-1000\83aa4cc77f591dfc2374580bbd95f6ba_39fbc0df-d496-4ae0-b1d7-bde60e245d90
Filesize45B
MD5c8366ae350e7019aefc9d1e6e6a498c6
SHA15731d8a3e6568a5f2dfbbc87e3db9637df280b61
SHA25611e6aca8e682c046c83b721eeb5c72c5ef03cb5936c60df6f4993511ddc61238
SHA51233c980d5a638bfc791de291ebf4b6d263b384247ab27f261a54025108f2f85374b579a026e545f81395736dd40fa4696f2163ca17640dd47f1c42bc9971b18cd
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Filesize
164KB
MD57ea89d19a8441cc58b7255dc9fb205fa
SHA12ae19607a8231bffd72353766f4017eb5492f3e8
SHA256486b68ef93d03c4e486b8ddd9e153391e7debc6839e0c09d38999dd159e30705
SHA5120a76f52939c305b2756fa486222210a4a8c40deff0fc753d11da899baaa84da2fed37ddbd333c6b1dc91ea07a2a1bffcaeb4db08dcbb3db97c925254e6bcbaf4
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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