Analysis
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max time kernel
148s -
max time network
152s -
platform
windows10-2004_x64 -
resource
win10v2004-20220901-en -
resource tags
arch:x64arch:x86image:win10v2004-20220901-enlocale:en-usos:windows10-2004-x64system -
submitted
13-10-2022 14:23
Behavioral task
behavioral1
Sample
25387f1765ceba1462457b816e1db8e702a0059f28f69d6d8440f7d496f941f1.exe
Resource
win7-20220901-en
General
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Target
25387f1765ceba1462457b816e1db8e702a0059f28f69d6d8440f7d496f941f1.exe
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Size
1.7MB
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MD5
6b055e240bc3d78c2e4d370c9169f340
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SHA1
87c58cc1ad9624bce840c8047aa21fcb1f75a1bf
-
SHA256
25387f1765ceba1462457b816e1db8e702a0059f28f69d6d8440f7d496f941f1
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SHA512
53a924a8124f3eec6e7d10e6838614172749a70469d2d939b9ff30fbed344a83064dffdfe9f1d1b375219c0f622a20167388fae8497e2fa25e70ce6330726ad5
-
SSDEEP
24576:xthEVaPqLB/OXA8faoMTRpyiXthEVaPqLB/OXA8faoMTRpyiZ:pEVUcwkB3VbEVUcwkB3VZ
Malware Config
Extracted
nanocore
1.2.2.0
lolli.no-ip.info:1133
e230b6f6-7d07-46a4-ae63-b23db679b6b4
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activate_away_mode
true
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backup_connection_host
lolli.no-ip.info
-
backup_dns_server
8.8.4.4
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buffer_size
65535
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build_time
2015-02-05T19:59:01.018438736Z
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bypass_user_account_control
false
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bypass_user_account_control_data
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
-
clear_access_control
true
-
clear_zone_identifier
false
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connect_delay
4000
-
connection_port
1133
-
default_group
extreme v2 tut
-
enable_debug_mode
true
-
gc_threshold
1.048576e+07
-
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
e230b6f6-7d07-46a4-ae63-b23db679b6b4
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mutex_timeout
5000
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prevent_system_sleep
false
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primary_connection_host
lolli.no-ip.info
-
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
false
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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
-
wan_timeout
8000
Signatures
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Executes dropped EXE 1 IoCs
Processes:
net.exepid process 3164 net.exe -
Processes:
resource yara_rule behavioral2/memory/4624-133-0x0000000000400000-0x0000000000516000-memory.dmp upx behavioral2/memory/1676-135-0x0000000000400000-0x0000000000516000-memory.dmp upx behavioral2/memory/652-137-0x0000000000400000-0x00000000004D1000-memory.dmp upx behavioral2/memory/1676-139-0x0000000000400000-0x0000000000516000-memory.dmp upx behavioral2/memory/652-140-0x0000000000400000-0x00000000004D1000-memory.dmp upx behavioral2/memory/652-141-0x0000000000400000-0x00000000004D1000-memory.dmp upx behavioral2/memory/652-144-0x0000000000400000-0x00000000004D1000-memory.dmp upx C:\Users\Admin\AppData\Local\Temp\image.png upx behavioral2/memory/652-149-0x0000000000400000-0x00000000004D1000-memory.dmp upx -
Adds Run key to start application 2 TTPs 3 IoCs
Processes:
svchost.exenet.exedescription ioc process Key created \REGISTRY\MACHINE\Software\WOW6432Node\Microsoft\Windows\CurrentVersion\Run svchost.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\Microsoft = "C:\\ProgramData\\SoundDriver\\svchost.exe" svchost.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\DHCP Subsystem = "C:\\Program Files (x86)\\DHCP Subsystem\\dhcpss.exe" net.exe -
Processes:
net.exedescription ioc process Key value queried \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA net.exe -
AutoIT Executable 3 IoCs
AutoIT scripts compiled to PE executables.
Processes:
resource yara_rule behavioral2/memory/4624-133-0x0000000000400000-0x0000000000516000-memory.dmp autoit_exe behavioral2/memory/1676-135-0x0000000000400000-0x0000000000516000-memory.dmp autoit_exe behavioral2/memory/1676-139-0x0000000000400000-0x0000000000516000-memory.dmp autoit_exe -
Suspicious use of SetThreadContext 2 IoCs
Processes:
25387f1765ceba1462457b816e1db8e702a0059f28f69d6d8440f7d496f941f1.exesvchost.exedescription pid process target process PID 1676 set thread context of 652 1676 25387f1765ceba1462457b816e1db8e702a0059f28f69d6d8440f7d496f941f1.exe svchost.exe PID 652 set thread context of 3164 652 svchost.exe net.exe -
Drops file in Program Files directory 2 IoCs
Processes:
net.exedescription ioc process File created C:\Program Files (x86)\DHCP Subsystem\dhcpss.exe net.exe File opened for modification C:\Program Files (x86)\DHCP Subsystem\dhcpss.exe net.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
-
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 4552 schtasks.exe 3540 schtasks.exe -
Runs net.exe
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Suspicious behavior: EnumeratesProcesses 13 IoCs
Processes:
25387f1765ceba1462457b816e1db8e702a0059f28f69d6d8440f7d496f941f1.exesvchost.exenet.exepid process 1676 25387f1765ceba1462457b816e1db8e702a0059f28f69d6d8440f7d496f941f1.exe 1676 25387f1765ceba1462457b816e1db8e702a0059f28f69d6d8440f7d496f941f1.exe 1676 25387f1765ceba1462457b816e1db8e702a0059f28f69d6d8440f7d496f941f1.exe 1676 25387f1765ceba1462457b816e1db8e702a0059f28f69d6d8440f7d496f941f1.exe 1676 25387f1765ceba1462457b816e1db8e702a0059f28f69d6d8440f7d496f941f1.exe 1676 25387f1765ceba1462457b816e1db8e702a0059f28f69d6d8440f7d496f941f1.exe 652 svchost.exe 652 svchost.exe 652 svchost.exe 652 svchost.exe 3164 net.exe 3164 net.exe 3164 net.exe -
Suspicious behavior: GetForegroundWindowSpam 1 IoCs
Processes:
net.exepid process 3164 net.exe -
Suspicious use of AdjustPrivilegeToken 1 IoCs
Processes:
net.exedescription pid process Token: SeDebugPrivilege 3164 net.exe -
Suspicious use of FindShellTrayWindow 6 IoCs
Processes:
25387f1765ceba1462457b816e1db8e702a0059f28f69d6d8440f7d496f941f1.exe25387f1765ceba1462457b816e1db8e702a0059f28f69d6d8440f7d496f941f1.exepid process 4624 25387f1765ceba1462457b816e1db8e702a0059f28f69d6d8440f7d496f941f1.exe 4624 25387f1765ceba1462457b816e1db8e702a0059f28f69d6d8440f7d496f941f1.exe 4624 25387f1765ceba1462457b816e1db8e702a0059f28f69d6d8440f7d496f941f1.exe 1676 25387f1765ceba1462457b816e1db8e702a0059f28f69d6d8440f7d496f941f1.exe 1676 25387f1765ceba1462457b816e1db8e702a0059f28f69d6d8440f7d496f941f1.exe 1676 25387f1765ceba1462457b816e1db8e702a0059f28f69d6d8440f7d496f941f1.exe -
Suspicious use of SendNotifyMessage 6 IoCs
Processes:
25387f1765ceba1462457b816e1db8e702a0059f28f69d6d8440f7d496f941f1.exe25387f1765ceba1462457b816e1db8e702a0059f28f69d6d8440f7d496f941f1.exepid process 4624 25387f1765ceba1462457b816e1db8e702a0059f28f69d6d8440f7d496f941f1.exe 4624 25387f1765ceba1462457b816e1db8e702a0059f28f69d6d8440f7d496f941f1.exe 4624 25387f1765ceba1462457b816e1db8e702a0059f28f69d6d8440f7d496f941f1.exe 1676 25387f1765ceba1462457b816e1db8e702a0059f28f69d6d8440f7d496f941f1.exe 1676 25387f1765ceba1462457b816e1db8e702a0059f28f69d6d8440f7d496f941f1.exe 1676 25387f1765ceba1462457b816e1db8e702a0059f28f69d6d8440f7d496f941f1.exe -
Suspicious use of SetWindowsHookEx 1 IoCs
Processes:
svchost.exepid process 652 svchost.exe -
Suspicious use of WriteProcessMemory 25 IoCs
Processes:
25387f1765ceba1462457b816e1db8e702a0059f28f69d6d8440f7d496f941f1.exe25387f1765ceba1462457b816e1db8e702a0059f28f69d6d8440f7d496f941f1.exesvchost.exenet.exedescription pid process target process PID 4624 wrote to memory of 1676 4624 25387f1765ceba1462457b816e1db8e702a0059f28f69d6d8440f7d496f941f1.exe 25387f1765ceba1462457b816e1db8e702a0059f28f69d6d8440f7d496f941f1.exe PID 4624 wrote to memory of 1676 4624 25387f1765ceba1462457b816e1db8e702a0059f28f69d6d8440f7d496f941f1.exe 25387f1765ceba1462457b816e1db8e702a0059f28f69d6d8440f7d496f941f1.exe PID 4624 wrote to memory of 1676 4624 25387f1765ceba1462457b816e1db8e702a0059f28f69d6d8440f7d496f941f1.exe 25387f1765ceba1462457b816e1db8e702a0059f28f69d6d8440f7d496f941f1.exe PID 1676 wrote to memory of 652 1676 25387f1765ceba1462457b816e1db8e702a0059f28f69d6d8440f7d496f941f1.exe svchost.exe PID 1676 wrote to memory of 652 1676 25387f1765ceba1462457b816e1db8e702a0059f28f69d6d8440f7d496f941f1.exe svchost.exe PID 1676 wrote to memory of 652 1676 25387f1765ceba1462457b816e1db8e702a0059f28f69d6d8440f7d496f941f1.exe svchost.exe PID 1676 wrote to memory of 652 1676 25387f1765ceba1462457b816e1db8e702a0059f28f69d6d8440f7d496f941f1.exe svchost.exe PID 1676 wrote to memory of 652 1676 25387f1765ceba1462457b816e1db8e702a0059f28f69d6d8440f7d496f941f1.exe svchost.exe PID 1676 wrote to memory of 652 1676 25387f1765ceba1462457b816e1db8e702a0059f28f69d6d8440f7d496f941f1.exe svchost.exe PID 1676 wrote to memory of 652 1676 25387f1765ceba1462457b816e1db8e702a0059f28f69d6d8440f7d496f941f1.exe svchost.exe PID 1676 wrote to memory of 652 1676 25387f1765ceba1462457b816e1db8e702a0059f28f69d6d8440f7d496f941f1.exe svchost.exe PID 652 wrote to memory of 3164 652 svchost.exe net.exe PID 652 wrote to memory of 3164 652 svchost.exe net.exe PID 652 wrote to memory of 3164 652 svchost.exe net.exe PID 652 wrote to memory of 3164 652 svchost.exe net.exe PID 652 wrote to memory of 3164 652 svchost.exe net.exe PID 652 wrote to memory of 3164 652 svchost.exe net.exe PID 652 wrote to memory of 3164 652 svchost.exe net.exe PID 652 wrote to memory of 3164 652 svchost.exe net.exe PID 3164 wrote to memory of 4552 3164 net.exe schtasks.exe PID 3164 wrote to memory of 4552 3164 net.exe schtasks.exe PID 3164 wrote to memory of 4552 3164 net.exe schtasks.exe PID 3164 wrote to memory of 3540 3164 net.exe schtasks.exe PID 3164 wrote to memory of 3540 3164 net.exe schtasks.exe PID 3164 wrote to memory of 3540 3164 net.exe schtasks.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\25387f1765ceba1462457b816e1db8e702a0059f28f69d6d8440f7d496f941f1.exe"C:\Users\Admin\AppData\Local\Temp\25387f1765ceba1462457b816e1db8e702a0059f28f69d6d8440f7d496f941f1.exe"1⤵
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
- Suspicious use of WriteProcessMemory
PID:4624 -
C:\Users\Admin\AppData\Local\Temp\25387f1765ceba1462457b816e1db8e702a0059f28f69d6d8440f7d496f941f1.exeC:\Users\Admin\AppData\Local\Temp\25387f1765ceba1462457b816e1db8e702a0059f28f69d6d8440f7d496f941f1.exe /AutoIt3ExecuteScript "C:\Users\Admin\AppData\Local\Temp\test.a3x"2⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
- Suspicious use of WriteProcessMemory
PID:1676 -
\??\c:\windows\SysWOW64\svchost.exe"c:\windows\system32\svchost.exe"3⤵
- Adds Run key to start application
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:652 -
C:\Users\Admin\AppData\Local\Temp\net.exe"C:\Users\Admin\AppData\Local\Temp\net.exe"4⤵
- Executes dropped EXE
- 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
PID:3164 -
C:\Windows\SysWOW64\schtasks.exe"schtasks.exe" /create /f /tn "DHCP Subsystem" /xml "C:\Users\Admin\AppData\Local\Temp\tmpCD96.tmp"5⤵
- Creates scheduled task(s)
PID:4552 -
C:\Windows\SysWOW64\schtasks.exe"schtasks.exe" /create /f /tn "DHCP Subsystem Task" /xml "C:\Users\Admin\AppData\Local\Temp\tmpCE91.tmp"5⤵
- Creates scheduled task(s)
PID:3540
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
Loading Replay Monitor...
Downloads
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Filesize
1.7MB
MD56b055e240bc3d78c2e4d370c9169f340
SHA187c58cc1ad9624bce840c8047aa21fcb1f75a1bf
SHA25625387f1765ceba1462457b816e1db8e702a0059f28f69d6d8440f7d496f941f1
SHA51253a924a8124f3eec6e7d10e6838614172749a70469d2d939b9ff30fbed344a83064dffdfe9f1d1b375219c0f622a20167388fae8497e2fa25e70ce6330726ad5
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Filesize
4KB
MD5840a36331c4f297e44a44a689b764a38
SHA14fa1de1a22325e9a906ea5427af1aeb93b1e568a
SHA2560cb1fcb8cfed3c33dd9374c7109d39e78ce562597897bcde749d8fdc7c935b77
SHA512790b9e5d284c5e1c3ade1800c8e2d59c7a71baf47949e03d66136ab7c0abfd6fe32c186eda9cc025afd7e45ecf5b85103599fe6b2995783d51fc31bca03f0be0
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Filesize
4KB
MD5840a36331c4f297e44a44a689b764a38
SHA14fa1de1a22325e9a906ea5427af1aeb93b1e568a
SHA2560cb1fcb8cfed3c33dd9374c7109d39e78ce562597897bcde749d8fdc7c935b77
SHA512790b9e5d284c5e1c3ade1800c8e2d59c7a71baf47949e03d66136ab7c0abfd6fe32c186eda9cc025afd7e45ecf5b85103599fe6b2995783d51fc31bca03f0be0
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Filesize
397KB
MD54e4cddd13c848074c11d4f1d291c6aba
SHA153e0002cead55ba20ef6261b1a43967e612fb558
SHA2564070ad29af1c0328ceec6b7032f2ff7fa94ee4adaead367f32c549d13ebbcf77
SHA512261bca93ac6b50af8c96b22d74b5a740380516869b3773c5f162924e8825770ebf6b65da83ac578cb592cfe9997bee8433e55648d32c2f2da83297904fbebb76
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Filesize
1KB
MD565f483a0c8c76d58e57e545f776739ef
SHA1eacfd68e19000f036ea5cb9f592f8c28e7e2d106
SHA2563716b861f0a2b02a9580a2c90ecd98e917854b8a2d4315f4207eb3041ab0281d
SHA512b25ced8f91f0bd9535ffcda152076bf88eab27900edf8f4407b8104276e0b2a94f60eb2a8efd1a6b5c9f59ea049e28a8fd1a99dcd92b6e83c09603fa5b30345c
-
Filesize
1KB
MD52f26d92c1eeead3896820e56ec46f6f1
SHA1d95533b61eed7d89e4ada56bc566d60e42ac1f61
SHA25699a158463ce40c750bad6991ae1fceece305a0dbf8e209dd7147b5d539756bfa
SHA5126c1ed12d5e1afcd9e7f327e0153786fd8594f75a995f341c408ef014e69917452a9fe99c511f0249aceb57b3045b707f1fd3f404e4086cfbf0aadcb3318db892