Analysis
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max time kernel
1187s -
max time network
1201s -
platform
windows11-21h2_x64 -
resource
win11-20240412-en -
resource tags
arch:x64arch:x86image:win11-20240412-enlocale:en-usos:windows11-21h2-x64system -
submitted
22-04-2024 16:11
Static task
static1
Behavioral task
behavioral1
Sample
Extreme Injector v3.exe
Resource
win10v2004-20240412-en
Behavioral task
behavioral2
Sample
Extreme Injector v3.exe
Resource
win11-20240412-en
General
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Target
Extreme Injector v3.exe
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Size
1.9MB
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MD5
8a85b1dbf679febd30fe2f55a811de58
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SHA1
d06b7f96415b1ff21adff49ecd84b7b06f01fe6e
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SHA256
cfe2e6d9739a3251ed06594563f1d66e9dd018b3c74a96ca3734cca7880fb105
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SHA512
9b9ba49b1bc4ef056ade2146ad915eeba819485d49dd2825b4f914b68ec572304c8138f1c202508f40a0e8db8c6443270da333e323d631b27897edf915fefabf
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SSDEEP
49152:d4FdetMVCK1LVXXQezP3+Wgm18VeWo/Wz3XEVM:udkCCK3XXQO18VeWJLE
Malware Config
Extracted
orcus
s7vety-47274.portmap.host:47274
2dfc3c3857c0466484c2056fcb13e0c9
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autostart_method
Registry
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enable_keylogger
false
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install_path
%temp%\Windows Updater\updateclient.exe
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reconnect_delay
10000
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registry_keyname
WindowsUpdater
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taskscheduler_taskname
Orcus
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watchdog_path
AppData\OrcusWatchdog.exe
Signatures
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Orcus main payload 1 IoCs
resource yara_rule behavioral2/files/0x000300000002a97d-10.dat family_orcus -
Orcurs Rat Executable 2 IoCs
resource yara_rule behavioral2/files/0x000300000002a97d-10.dat orcus behavioral2/memory/960-33-0x0000000000350000-0x000000000043C000-memory.dmp orcus -
Executes dropped EXE 9 IoCs
pid Process 960 Update.exe 1180 Extreme Injector v3_or.exe 4280 WindowsInput.exe 2000 WindowsInput.exe 920 updateclient.exe 4228 updateclient.exe 4848 updateclient.exe 1084 updateclient.exe 3692 updateclient.exe -
Loads dropped DLL 1 IoCs
pid Process 920 updateclient.exe -
Adds Run key to start application 2 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-801765966-3955847401-2235691403-1000\Software\Microsoft\Windows\CurrentVersion\Run\WindowsUpdater = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\Windows Updater\\updateclient.exe\"" updateclient.exe -
Legitimate hosting services abused for malware hosting/C2 1 TTPs 2 IoCs
flow ioc 3 raw.githubusercontent.com 5 raw.githubusercontent.com -
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 -
Drops file in System32 directory 3 IoCs
description ioc Process File created C:\Windows\SysWOW64\WindowsInput.exe Update.exe File created C:\Windows\SysWOW64\WindowsInput.exe.config Update.exe File created C:\Windows\SysWOW64\WindowsInput.InstallState WindowsInput.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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Suspicious use of AdjustPrivilegeToken 64 IoCs
description pid Process Token: SeDebugPrivilege 3348 Extreme Injector v3.exe Token: SeDebugPrivilege 1180 Extreme Injector v3_or.exe Token: 33 1180 Extreme Injector v3_or.exe Token: SeIncBasePriorityPrivilege 1180 Extreme Injector v3_or.exe Token: SeDebugPrivilege 1180 Extreme Injector v3_or.exe Token: 33 1180 Extreme Injector v3_or.exe Token: SeIncBasePriorityPrivilege 1180 Extreme Injector v3_or.exe Token: SeDebugPrivilege 920 updateclient.exe Token: 33 1180 Extreme Injector v3_or.exe Token: SeIncBasePriorityPrivilege 1180 Extreme Injector v3_or.exe Token: 33 1180 Extreme Injector v3_or.exe Token: SeIncBasePriorityPrivilege 1180 Extreme Injector v3_or.exe Token: 33 1180 Extreme Injector v3_or.exe Token: SeIncBasePriorityPrivilege 1180 Extreme Injector v3_or.exe Token: 33 1180 Extreme Injector v3_or.exe Token: SeIncBasePriorityPrivilege 1180 Extreme Injector v3_or.exe Token: 33 1180 Extreme Injector v3_or.exe Token: SeIncBasePriorityPrivilege 1180 Extreme Injector v3_or.exe Token: 33 1180 Extreme Injector v3_or.exe Token: SeIncBasePriorityPrivilege 1180 Extreme Injector v3_or.exe Token: 33 1180 Extreme Injector v3_or.exe Token: SeIncBasePriorityPrivilege 1180 Extreme Injector v3_or.exe Token: 33 1180 Extreme Injector v3_or.exe Token: SeIncBasePriorityPrivilege 1180 Extreme Injector v3_or.exe Token: 33 1180 Extreme Injector v3_or.exe Token: SeIncBasePriorityPrivilege 1180 Extreme Injector v3_or.exe Token: 33 1180 Extreme Injector v3_or.exe Token: SeIncBasePriorityPrivilege 1180 Extreme Injector v3_or.exe Token: 33 1180 Extreme Injector v3_or.exe Token: SeIncBasePriorityPrivilege 1180 Extreme Injector v3_or.exe Token: 33 1180 Extreme Injector v3_or.exe Token: SeIncBasePriorityPrivilege 1180 Extreme Injector v3_or.exe Token: 33 1180 Extreme Injector v3_or.exe Token: SeIncBasePriorityPrivilege 1180 Extreme Injector v3_or.exe Token: 33 1180 Extreme Injector v3_or.exe Token: SeIncBasePriorityPrivilege 1180 Extreme Injector v3_or.exe Token: 33 1180 Extreme Injector v3_or.exe Token: SeIncBasePriorityPrivilege 1180 Extreme Injector v3_or.exe Token: 33 1180 Extreme Injector v3_or.exe Token: SeIncBasePriorityPrivilege 1180 Extreme Injector v3_or.exe Token: 33 1180 Extreme Injector v3_or.exe Token: SeIncBasePriorityPrivilege 1180 Extreme Injector v3_or.exe Token: 33 1180 Extreme Injector v3_or.exe Token: SeIncBasePriorityPrivilege 1180 Extreme Injector v3_or.exe Token: 33 1180 Extreme Injector v3_or.exe Token: SeIncBasePriorityPrivilege 1180 Extreme Injector v3_or.exe Token: 33 1180 Extreme Injector v3_or.exe Token: SeIncBasePriorityPrivilege 1180 Extreme Injector v3_or.exe Token: 33 1180 Extreme Injector v3_or.exe Token: SeIncBasePriorityPrivilege 1180 Extreme Injector v3_or.exe Token: 33 1180 Extreme Injector v3_or.exe Token: SeIncBasePriorityPrivilege 1180 Extreme Injector v3_or.exe Token: 33 1180 Extreme Injector v3_or.exe Token: SeIncBasePriorityPrivilege 1180 Extreme Injector v3_or.exe Token: 33 1180 Extreme Injector v3_or.exe Token: SeIncBasePriorityPrivilege 1180 Extreme Injector v3_or.exe Token: 33 1180 Extreme Injector v3_or.exe Token: SeIncBasePriorityPrivilege 1180 Extreme Injector v3_or.exe Token: 33 1180 Extreme Injector v3_or.exe Token: SeIncBasePriorityPrivilege 1180 Extreme Injector v3_or.exe Token: 33 1180 Extreme Injector v3_or.exe Token: SeIncBasePriorityPrivilege 1180 Extreme Injector v3_or.exe Token: 33 1180 Extreme Injector v3_or.exe Token: SeIncBasePriorityPrivilege 1180 Extreme Injector v3_or.exe -
Suspicious use of FindShellTrayWindow 3 IoCs
pid Process 920 updateclient.exe 920 updateclient.exe 920 updateclient.exe -
Suspicious use of SendNotifyMessage 3 IoCs
pid Process 920 updateclient.exe 920 updateclient.exe 920 updateclient.exe -
Suspicious use of WriteProcessMemory 8 IoCs
description pid Process procid_target PID 3348 wrote to memory of 960 3348 Extreme Injector v3.exe 82 PID 3348 wrote to memory of 960 3348 Extreme Injector v3.exe 82 PID 3348 wrote to memory of 1180 3348 Extreme Injector v3.exe 83 PID 3348 wrote to memory of 1180 3348 Extreme Injector v3.exe 83 PID 960 wrote to memory of 4280 960 Update.exe 84 PID 960 wrote to memory of 4280 960 Update.exe 84 PID 960 wrote to memory of 920 960 Update.exe 86 PID 960 wrote to memory of 920 960 Update.exe 86 -
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:\Users\Admin\AppData\Local\Temp\Extreme Injector v3.exe"C:\Users\Admin\AppData\Local\Temp\Extreme Injector v3.exe"1⤵
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3348 -
C:\Users\Admin\AppData\Local\Temp\Update.exe"C:\Users\Admin\AppData\Local\Temp\Update.exe"2⤵
- Executes dropped EXE
- Drops file in System32 directory
- Suspicious use of WriteProcessMemory
PID:960 -
C:\Windows\SysWOW64\WindowsInput.exe"C:\Windows\SysWOW64\WindowsInput.exe" --install3⤵
- Executes dropped EXE
- Drops file in System32 directory
PID:4280
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C:\Users\Admin\AppData\Local\Temp\Windows Updater\updateclient.exe"C:\Users\Admin\AppData\Local\Temp\Windows Updater\updateclient.exe"3⤵
- Executes dropped EXE
- Loads dropped DLL
- Adds Run key to start application
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
PID:920
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C:\Users\Admin\AppData\Local\Temp\Extreme Injector v3_or.exe"C:\Users\Admin\AppData\Local\Temp\Extreme Injector v3_or.exe"2⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
PID:1180
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C:\Windows\SysWOW64\WindowsInput.exe"C:\Windows\SysWOW64\WindowsInput.exe"1⤵
- Executes dropped EXE
PID:2000
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C:\Users\Admin\AppData\Local\Temp\Windows Updater\updateclient.exe"C:\Users\Admin\AppData\Local\Temp\Windows Updater\updateclient.exe"1⤵
- Executes dropped EXE
PID:4228
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C:\Windows\system32\AUDIODG.EXEC:\Windows\system32\AUDIODG.EXE 0x00000000000004B8 0x00000000000004C01⤵PID:3436
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C:\Users\Admin\AppData\Local\Temp\Windows Updater\updateclient.exe"C:\Users\Admin\AppData\Local\Temp\Windows Updater\updateclient.exe"1⤵
- Executes dropped EXE
PID:4848
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C:\Users\Admin\AppData\Local\Temp\Windows Updater\updateclient.exe"C:\Users\Admin\AppData\Local\Temp\Windows Updater\updateclient.exe"1⤵
- Executes dropped EXE
PID:1084
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C:\Users\Admin\AppData\Local\Temp\Windows Updater\updateclient.exe"C:\Users\Admin\AppData\Local\Temp\Windows Updater\updateclient.exe"1⤵
- Executes dropped EXE
PID:3692
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
1KB
MD59666dac81545c9074f4da5ceac101f52
SHA1ea515e0b8895f3d75a949851a360f8082637017b
SHA2561dc357977659fdb0474ba61f6e34053669875581f8ef70fa397a31d1b2a81e3c
SHA5126e4a99b1b27b61973ae79fdfd4dd9831aabb6d64177a1e9081977b5bf8fdf7e9d0c071dd5e229484c3db6f66271f91247d48f086dc6bd43566553ccdc9ac5670
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Filesize
1.9MB
MD5ec801a7d4b72a288ec6c207bb9ff0131
SHA132eec2ae1f9e201516fa7fcdc16c4928f7997561
SHA256b65f40618f584303ca0bcf9b5f88c233cc4237699c0c4bf40ba8facbe8195a46
SHA512a07dd5e8241de73ce65ff8d74acef4942b85fc45cf6a7baafd3c0f9d330b08e7412f2023ba667e99b40e732a65e8fb4389f7fe73c7b6256ca71e63afe46cdcac
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Filesize
918KB
MD58c6658a8808482bfab2b8ac9840f9e51
SHA1c941721888b49c97c456af1b195a4018e4edeb0c
SHA25695abbef690302956860c174bfa7ee8764f5d4379a2e13a6fd7c945ab2fd113a0
SHA5124fe5a5cbf4baa919320ce2736cdac33e273719272ce76233466e98d334e94a33c8402b8656f35d4d099e3495370953fda1f943cfe07774551420eff004d3172d
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Filesize
516KB
MD5dde3ec6e17bc518b10c99efbd09ab72e
SHA1a2306e60b74b8a01a0dbc1199a7fffca288f2033
SHA25660a5077b443273238e6629ce5fc3ff7ee3592ea2e377b8fc28bfe6e76bda64b8
SHA51209a528c18291980ca7c5ddca67625035bbb21b9d95ab0854670d28c59c4e7adc6d13a356fa1d2c9ad75d16b334ae9818e06ddb10408a3e776e4ef0d7b295f877
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C:\Users\Admin\AppData\Roaming\Windows\lib_2dfc3c3857c0466484c2056fcb13e0c9\ICSharpCode.SharpZipLib.dll
Filesize196KB
MD5c8164876b6f66616d68387443621510c
SHA17a9df9c25d49690b6a3c451607d311a866b131f4
SHA25640b3d590f95191f3e33e5d00e534fa40f823d9b1bb2a9afe05f139c4e0a3af8d
SHA51244a6accc70c312a16d0e533d3287e380997c5e5d610dbeaa14b2dbb5567f2c41253b895c9817ecd96c85d286795bbe6ab35fd2352fddd9d191669a2fb0774bc4
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Filesize
458KB
MD520956ba917ef3509b721461a884edcc1
SHA1b45628c6f280aff8362bbb02c0960b20a44a5086
SHA256b767008d63a9fce5db80f27467abb8e0a74e7edbcf0d392a6a0506d42d3bf76a
SHA51268db640941698d6649809bfe8795e197a538f7c48d9faea04dfa0d5ef3c2dcc390d829827c6d5604f8e337243f0ad894ef3c37b4c682c775f3c1270b59331f00
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Filesize
21KB
MD5e6fcf516d8ed8d0d4427f86e08d0d435
SHA1c7691731583ab7890086635cb7f3e4c22ca5e409
SHA2568dbe814359391ed6b0b5b182039008cf1d00964da9fbc4747f46242a95c24337
SHA512c496cf8e2e222fe1e19051b291e6860f31aae39f54369c1c5e8c9758c4b56e8af904e3e536e743a0a6fdbbf8478afba4baee92e13fc1b3073376ac6bf4a7948e
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Filesize
357B
MD5a2b76cea3a59fa9af5ea21ff68139c98
SHA135d76475e6a54c168f536e30206578babff58274
SHA256f99ef5bf79a7c43701877f0bb0b890591885bb0a3d605762647cc8ffbf10c839
SHA512b52608b45153c489419228864ecbcb92be24c644d470818dfe15f8c7e661a7bcd034ea13ef401f2b84ad5c29a41c9b4c7d161cc33ae3ef71659bc2bca1a8c4ad