Analysis
-
max time kernel
148s -
max time network
144s -
platform
windows10-2004_x64 -
resource
win10v2004-20230220-en -
resource tags
arch:x64arch:x86image:win10v2004-20230220-enlocale:en-usos:windows10-2004-x64system -
submitted
17-04-2023 17:42
Static task
static1
Behavioral task
behavioral1
Sample
c0ee259c92c30dcd710e13a44ec8899aa527998ab2431d1e4cb1de94db939718.exe
Resource
win7-20230220-en
General
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Target
c0ee259c92c30dcd710e13a44ec8899aa527998ab2431d1e4cb1de94db939718.exe
-
Size
2.2MB
-
MD5
5544f709f499a2179dc8bfa0febef190
-
SHA1
bfe3a5b530af40d4a679f3a0f271a2c8fc3bebda
-
SHA256
c0ee259c92c30dcd710e13a44ec8899aa527998ab2431d1e4cb1de94db939718
-
SHA512
eec0b7c5a48667d2d429e7dfe3b1e5f21e9342c91b4d06915eb57b82b2a14ef1963ed9ba6baa12f0b9a61470fdbc4820faff613d5c057f6fb1c1de397fbcf867
-
SSDEEP
24576:bBPTrfgGiX5jCqC/twlR0egPHcKkZLKbarxflAGezUFj1ttCq63a7fUL3t6NxKmn:prwX5jHOODAZzojrtCGdXr
Malware Config
Extracted
nanocore
1.2.2.0
152.89.218.40:54984
127.0.0.1:54984
18aadcbc-eacf-42f0-9f04-a9a6fe5a3fd3
-
activate_away_mode
true
-
backup_connection_host
127.0.0.1
-
backup_dns_server
8.8.4.4
-
buffer_size
65535
-
build_time
2023-01-21T21:54:55.670767736Z
-
bypass_user_account_control
false
-
bypass_user_account_control_data
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
-
clear_access_control
true
-
clear_zone_identifier
false
-
connect_delay
4000
-
connection_port
54984
-
default_group
Default
-
enable_debug_mode
true
-
gc_threshold
1.048576e+07
-
keep_alive_timeout
30000
-
keyboard_logging
false
-
lan_timeout
2500
-
max_packet_size
1.048576e+07
-
mutex
18aadcbc-eacf-42f0-9f04-a9a6fe5a3fd3
-
mutex_timeout
5000
-
prevent_system_sleep
false
-
primary_connection_host
152.89.218.40
-
primary_dns_server
8.8.8.8
-
request_elevation
false
-
restart_delay
5000
-
run_delay
0
-
run_on_startup
false
-
set_critical_process
true
-
timeout_interval
5000
-
use_custom_dns_server
false
-
version
1.2.2.0
-
wan_timeout
8000
Signatures
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Modifies WinLogon for persistence 2 TTPs 1 IoCs
Processes:
c0ee259c92c30dcd710e13a44ec8899aa527998ab2431d1e4cb1de94db939718.exedescription ioc process Set value (str) \REGISTRY\USER\S-1-5-21-1529757233-3489015626-3409890339-1000\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\Shell = "explorer.exe,\"C:\\Users\\Admin\\AppData\\Roaming\\Lvxzuojt\\Titfeptt.exe\"," c0ee259c92c30dcd710e13a44ec8899aa527998ab2431d1e4cb1de94db939718.exe -
Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
Processes:
c0ee259c92c30dcd710e13a44ec8899aa527998ab2431d1e4cb1de94db939718.exedescription ioc process Key value queried \REGISTRY\USER\S-1-5-21-1529757233-3489015626-3409890339-1000\Control Panel\International\Geo\Nation c0ee259c92c30dcd710e13a44ec8899aa527998ab2431d1e4cb1de94db939718.exe -
Adds Run key to start application 2 TTPs 1 IoCs
Processes:
c0ee259c92c30dcd710e13a44ec8899aa527998ab2431d1e4cb1de94db939718.exedescription ioc process Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\IMAP Host = "C:\\Program Files (x86)\\IMAP Host\\imaphost.exe" c0ee259c92c30dcd710e13a44ec8899aa527998ab2431d1e4cb1de94db939718.exe -
Processes:
c0ee259c92c30dcd710e13a44ec8899aa527998ab2431d1e4cb1de94db939718.exedescription ioc process Key value queried \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA c0ee259c92c30dcd710e13a44ec8899aa527998ab2431d1e4cb1de94db939718.exe -
Suspicious use of SetThreadContext 1 IoCs
Processes:
c0ee259c92c30dcd710e13a44ec8899aa527998ab2431d1e4cb1de94db939718.exedescription pid process target process PID 4192 set thread context of 4728 4192 c0ee259c92c30dcd710e13a44ec8899aa527998ab2431d1e4cb1de94db939718.exe c0ee259c92c30dcd710e13a44ec8899aa527998ab2431d1e4cb1de94db939718.exe -
Drops file in Program Files directory 2 IoCs
Processes:
c0ee259c92c30dcd710e13a44ec8899aa527998ab2431d1e4cb1de94db939718.exedescription ioc process File opened for modification C:\Program Files (x86)\IMAP Host\imaphost.exe c0ee259c92c30dcd710e13a44ec8899aa527998ab2431d1e4cb1de94db939718.exe File created C:\Program Files (x86)\IMAP Host\imaphost.exe c0ee259c92c30dcd710e13a44ec8899aa527998ab2431d1e4cb1de94db939718.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
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Creates scheduled task(s) 1 TTPs 2 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
Processes:
schtasks.exeschtasks.exepid process 3688 schtasks.exe 4896 schtasks.exe -
Suspicious behavior: EnumeratesProcesses 5 IoCs
Processes:
powershell.exec0ee259c92c30dcd710e13a44ec8899aa527998ab2431d1e4cb1de94db939718.exepid process 2960 powershell.exe 2960 powershell.exe 4728 c0ee259c92c30dcd710e13a44ec8899aa527998ab2431d1e4cb1de94db939718.exe 4728 c0ee259c92c30dcd710e13a44ec8899aa527998ab2431d1e4cb1de94db939718.exe 4728 c0ee259c92c30dcd710e13a44ec8899aa527998ab2431d1e4cb1de94db939718.exe -
Suspicious behavior: GetForegroundWindowSpam 1 IoCs
Processes:
c0ee259c92c30dcd710e13a44ec8899aa527998ab2431d1e4cb1de94db939718.exepid process 4728 c0ee259c92c30dcd710e13a44ec8899aa527998ab2431d1e4cb1de94db939718.exe -
Suspicious use of AdjustPrivilegeToken 3 IoCs
Processes:
powershell.exec0ee259c92c30dcd710e13a44ec8899aa527998ab2431d1e4cb1de94db939718.exec0ee259c92c30dcd710e13a44ec8899aa527998ab2431d1e4cb1de94db939718.exedescription pid process Token: SeDebugPrivilege 2960 powershell.exe Token: SeDebugPrivilege 4192 c0ee259c92c30dcd710e13a44ec8899aa527998ab2431d1e4cb1de94db939718.exe Token: SeDebugPrivilege 4728 c0ee259c92c30dcd710e13a44ec8899aa527998ab2431d1e4cb1de94db939718.exe -
Suspicious use of WriteProcessMemory 17 IoCs
Processes:
c0ee259c92c30dcd710e13a44ec8899aa527998ab2431d1e4cb1de94db939718.exec0ee259c92c30dcd710e13a44ec8899aa527998ab2431d1e4cb1de94db939718.exedescription pid process target process PID 4192 wrote to memory of 2960 4192 c0ee259c92c30dcd710e13a44ec8899aa527998ab2431d1e4cb1de94db939718.exe powershell.exe PID 4192 wrote to memory of 2960 4192 c0ee259c92c30dcd710e13a44ec8899aa527998ab2431d1e4cb1de94db939718.exe powershell.exe PID 4192 wrote to memory of 2960 4192 c0ee259c92c30dcd710e13a44ec8899aa527998ab2431d1e4cb1de94db939718.exe powershell.exe PID 4192 wrote to memory of 4728 4192 c0ee259c92c30dcd710e13a44ec8899aa527998ab2431d1e4cb1de94db939718.exe c0ee259c92c30dcd710e13a44ec8899aa527998ab2431d1e4cb1de94db939718.exe PID 4192 wrote to memory of 4728 4192 c0ee259c92c30dcd710e13a44ec8899aa527998ab2431d1e4cb1de94db939718.exe c0ee259c92c30dcd710e13a44ec8899aa527998ab2431d1e4cb1de94db939718.exe PID 4192 wrote to memory of 4728 4192 c0ee259c92c30dcd710e13a44ec8899aa527998ab2431d1e4cb1de94db939718.exe c0ee259c92c30dcd710e13a44ec8899aa527998ab2431d1e4cb1de94db939718.exe PID 4192 wrote to memory of 4728 4192 c0ee259c92c30dcd710e13a44ec8899aa527998ab2431d1e4cb1de94db939718.exe c0ee259c92c30dcd710e13a44ec8899aa527998ab2431d1e4cb1de94db939718.exe PID 4192 wrote to memory of 4728 4192 c0ee259c92c30dcd710e13a44ec8899aa527998ab2431d1e4cb1de94db939718.exe c0ee259c92c30dcd710e13a44ec8899aa527998ab2431d1e4cb1de94db939718.exe PID 4192 wrote to memory of 4728 4192 c0ee259c92c30dcd710e13a44ec8899aa527998ab2431d1e4cb1de94db939718.exe c0ee259c92c30dcd710e13a44ec8899aa527998ab2431d1e4cb1de94db939718.exe PID 4192 wrote to memory of 4728 4192 c0ee259c92c30dcd710e13a44ec8899aa527998ab2431d1e4cb1de94db939718.exe c0ee259c92c30dcd710e13a44ec8899aa527998ab2431d1e4cb1de94db939718.exe PID 4192 wrote to memory of 4728 4192 c0ee259c92c30dcd710e13a44ec8899aa527998ab2431d1e4cb1de94db939718.exe c0ee259c92c30dcd710e13a44ec8899aa527998ab2431d1e4cb1de94db939718.exe PID 4728 wrote to memory of 4896 4728 c0ee259c92c30dcd710e13a44ec8899aa527998ab2431d1e4cb1de94db939718.exe schtasks.exe PID 4728 wrote to memory of 4896 4728 c0ee259c92c30dcd710e13a44ec8899aa527998ab2431d1e4cb1de94db939718.exe schtasks.exe PID 4728 wrote to memory of 4896 4728 c0ee259c92c30dcd710e13a44ec8899aa527998ab2431d1e4cb1de94db939718.exe schtasks.exe PID 4728 wrote to memory of 3688 4728 c0ee259c92c30dcd710e13a44ec8899aa527998ab2431d1e4cb1de94db939718.exe schtasks.exe PID 4728 wrote to memory of 3688 4728 c0ee259c92c30dcd710e13a44ec8899aa527998ab2431d1e4cb1de94db939718.exe schtasks.exe PID 4728 wrote to memory of 3688 4728 c0ee259c92c30dcd710e13a44ec8899aa527998ab2431d1e4cb1de94db939718.exe schtasks.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\c0ee259c92c30dcd710e13a44ec8899aa527998ab2431d1e4cb1de94db939718.exe"C:\Users\Admin\AppData\Local\Temp\c0ee259c92c30dcd710e13a44ec8899aa527998ab2431d1e4cb1de94db939718.exe"1⤵
- Modifies WinLogon for persistence
- Checks computer location settings
- Suspicious use of SetThreadContext
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ENC cwB0AGEAcgB0AC0AcwBsAGUAZQBwACAALQBzAGUAYwBvAG4AZABzACAAMgAwAA==2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
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C:\Users\Admin\AppData\Local\Temp\c0ee259c92c30dcd710e13a44ec8899aa527998ab2431d1e4cb1de94db939718.exeC:\Users\Admin\AppData\Local\Temp\c0ee259c92c30dcd710e13a44ec8899aa527998ab2431d1e4cb1de94db939718.exe2⤵
- Adds Run key to start application
- Checks whether UAC is enabled
- Drops file in Program Files directory
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\schtasks.exe"schtasks.exe" /create /f /tn "IMAP Host" /xml "C:\Users\Admin\AppData\Local\Temp\tmpD7A8.tmp"3⤵
- Creates scheduled task(s)
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C:\Windows\SysWOW64\schtasks.exe"schtasks.exe" /create /f /tn "IMAP Host Task" /xml "C:\Users\Admin\AppData\Local\Temp\tmpD883.tmp"3⤵
- Creates scheduled task(s)
Network
MITRE ATT&CK Matrix ATT&CK v6
Replay Monitor
Loading Replay Monitor...
Downloads
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C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\c0ee259c92c30dcd710e13a44ec8899aa527998ab2431d1e4cb1de94db939718.exe.logFilesize
1KB
MD57e88081fcf716d85992bb3af3d9b6454
SHA12153780fbc71061b0102a7a7b665349e1013e250
SHA2565ffb4a3ea94a6a53c4f88e2191c6fec5fd8a7336e367aa113fe8c12631e0c4d2
SHA512ec606e14367ae221c04f213a61a6f797034495121198e4788e3afa4aa8db67bf59c5c5210a56afae5557158e8923b013b371b84c7d64303618c5b4c57a2224f7
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C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_hyzenmyy.sl1.ps1Filesize
60B
MD5d17fe0a3f47be24a6453e9ef58c94641
SHA16ab83620379fc69f80c0242105ddffd7d98d5d9d
SHA25696ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
SHA5125b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82
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C:\Users\Admin\AppData\Local\Temp\tmpD7A8.tmpFilesize
1KB
MD51a2454791e1acc5d2003cb887fcd158f
SHA154744a9a4ff292f880f549cb41dc6c152e209259
SHA25637972f3dccb591830f347272a4284901508ae4e2b8bb1aa81b85792cbb2eac79
SHA512ca47c043db37930baf3c78deb04b95cf9fd7c2127d97784298aafbd32c77cbf383cccd445472474ff28ad2adc43479bfe962117db2c0b3ed7b4dc345bd3291d5
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C:\Users\Admin\AppData\Local\Temp\tmpD883.tmpFilesize
1KB
MD526949241adb22a61a6641ec627a46817
SHA1d87d9df2a1ac64731e8b2b2a20fc769aeac93680
SHA256c7a1cbfef12a6b597255e96334581a90386007011a810a4f950159f6c16b11d1
SHA5128c979f3f0193982df8c6a9347af42fcc79acafa9befc5c1f4da9755ab6721ea8bc7a5742b61c6867449efb61a43469152ed9c9d542c0861d1dd72bae487f8b74
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memory/2960-149-0x0000000004CB0000-0x0000000004CC0000-memory.dmpFilesize
64KB
-
memory/2960-138-0x0000000005200000-0x0000000005266000-memory.dmpFilesize
408KB
-
memory/2960-139-0x0000000005AD0000-0x0000000005B36000-memory.dmpFilesize
408KB
-
memory/2960-137-0x00000000052F0000-0x0000000005918000-memory.dmpFilesize
6.2MB
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memory/2960-158-0x0000000004CB0000-0x0000000004CC0000-memory.dmpFilesize
64KB
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memory/2960-150-0x0000000004CB0000-0x0000000004CC0000-memory.dmpFilesize
64KB
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memory/2960-151-0x0000000006110000-0x000000000612E000-memory.dmpFilesize
120KB
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memory/2960-152-0x0000000004CB0000-0x0000000004CC0000-memory.dmpFilesize
64KB
-
memory/2960-153-0x0000000007730000-0x0000000007DAA000-memory.dmpFilesize
6.5MB
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memory/2960-154-0x0000000006600000-0x000000000661A000-memory.dmpFilesize
104KB
-
memory/2960-136-0x0000000002B40000-0x0000000002B76000-memory.dmpFilesize
216KB
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memory/2960-156-0x0000000004CB0000-0x0000000004CC0000-memory.dmpFilesize
64KB
-
memory/2960-157-0x0000000004CB0000-0x0000000004CC0000-memory.dmpFilesize
64KB
-
memory/4192-155-0x00000000055D0000-0x00000000055E0000-memory.dmpFilesize
64KB
-
memory/4192-133-0x0000000000A70000-0x0000000000CAE000-memory.dmpFilesize
2.2MB
-
memory/4192-135-0x00000000055D0000-0x00000000055E0000-memory.dmpFilesize
64KB
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memory/4192-134-0x00000000055A0000-0x00000000055C2000-memory.dmpFilesize
136KB
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memory/4728-163-0x0000000000400000-0x0000000000438000-memory.dmpFilesize
224KB
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memory/4728-166-0x0000000005C30000-0x00000000061D4000-memory.dmpFilesize
5.6MB
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memory/4728-167-0x0000000005720000-0x00000000057B2000-memory.dmpFilesize
584KB
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memory/4728-168-0x00000000057C0000-0x000000000585C000-memory.dmpFilesize
624KB
-
memory/4728-169-0x00000000056A0000-0x00000000056AA000-memory.dmpFilesize
40KB
-
memory/4728-174-0x00000000056B0000-0x00000000056C0000-memory.dmpFilesize
64KB
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memory/4728-178-0x00000000056B0000-0x00000000056C0000-memory.dmpFilesize
64KB