Analysis
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max time kernel
139s -
max time network
150s -
platform
windows10-2004_x64 -
resource
win10v2004-20240412-en -
resource tags
arch:x64arch:x86image:win10v2004-20240412-enlocale:en-usos:windows10-2004-x64system -
submitted
25-04-2024 09:42
Static task
static1
Behavioral task
behavioral1
Sample
POP.exe
Resource
win7-20240220-en
General
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Target
POP.exe
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Size
660KB
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MD5
46d06b32a50fd0c1a1981695e6504aa5
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SHA1
562f1b0f554ab339d851e7c031059d20a1c88af6
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SHA256
3796fdf35ca6c4557746dc1de61e477fe9972bc44a2fb23503e302c27fab4335
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SHA512
c6ff00d37a3d8f8716df5a67d5f6e16bec0ec1a5ea4625138651ca8bc43ffda9e4ff77c158803d3399aa7543ec88dd37551215f60e159d226ac307cfd6e4cb44
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SSDEEP
12288:nYIPXjeFKYoJyZTH5Zx161j9QMRLPfVtc1qHNanyP8POCxU:nYIPGKYokbF01j9b1tcoMyP8POCy
Malware Config
Extracted
nanocore
1.2.2.0
amechi.duckdns.org:4190
1e951a16-0899-4a49-9bed-fad9fc6657d1
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activate_away_mode
true
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backup_connection_host
amechi.duckdns.org
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backup_dns_server
8.8.4.4
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buffer_size
65535
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build_time
2024-02-05T10:09:03.565293536Z
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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
4190
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default_group
clement
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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
1e951a16-0899-4a49-9bed-fad9fc6657d1
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mutex_timeout
5000
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prevent_system_sleep
false
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primary_connection_host
amechi.duckdns.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
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
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wan_timeout
8000
Signatures
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Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
Processes:
POP.exedescription ioc process Key value queried \REGISTRY\USER\S-1-5-21-259785868-298165991-4178590326-1000\Control Panel\International\Geo\Nation POP.exe -
Adds Run key to start application 2 TTPs 1 IoCs
Processes:
POP.exedescription ioc process Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\DDP Service = "C:\\Program Files (x86)\\DDP Service\\ddpsv.exe" POP.exe -
Processes:
POP.exedescription ioc process Key value queried \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA POP.exe -
Suspicious use of SetThreadContext 1 IoCs
Processes:
POP.exedescription pid process target process PID 4960 set thread context of 4376 4960 POP.exe POP.exe -
Drops file in Program Files directory 2 IoCs
Processes:
POP.exedescription ioc process File created C:\Program Files (x86)\DDP Service\ddpsv.exe POP.exe File opened for modification C:\Program Files (x86)\DDP Service\ddpsv.exe POP.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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Program crash 1 IoCs
Processes:
WerFault.exepid pid_target process target process 3548 4960 WerFault.exe POP.exe -
Creates scheduled task(s) 1 TTPs 1 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
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Suspicious behavior: EnumeratesProcesses 18 IoCs
Processes:
POP.exepowershell.exepowershell.exePOP.exepid process 4960 POP.exe 4960 POP.exe 4960 POP.exe 3244 powershell.exe 3244 powershell.exe 5088 powershell.exe 5088 powershell.exe 4960 POP.exe 4960 POP.exe 3244 powershell.exe 5088 powershell.exe 4376 POP.exe 4376 POP.exe 4376 POP.exe 4376 POP.exe 4376 POP.exe 4376 POP.exe 4376 POP.exe -
Suspicious behavior: GetForegroundWindowSpam 1 IoCs
Processes:
POP.exepid process 4376 POP.exe -
Suspicious use of AdjustPrivilegeToken 4 IoCs
Processes:
POP.exepowershell.exepowershell.exePOP.exedescription pid process Token: SeDebugPrivilege 4960 POP.exe Token: SeDebugPrivilege 3244 powershell.exe Token: SeDebugPrivilege 5088 powershell.exe Token: SeDebugPrivilege 4376 POP.exe -
Suspicious use of WriteProcessMemory 17 IoCs
Processes:
POP.exedescription pid process target process PID 4960 wrote to memory of 3244 4960 POP.exe powershell.exe PID 4960 wrote to memory of 3244 4960 POP.exe powershell.exe PID 4960 wrote to memory of 3244 4960 POP.exe powershell.exe PID 4960 wrote to memory of 5088 4960 POP.exe powershell.exe PID 4960 wrote to memory of 5088 4960 POP.exe powershell.exe PID 4960 wrote to memory of 5088 4960 POP.exe powershell.exe PID 4960 wrote to memory of 2472 4960 POP.exe schtasks.exe PID 4960 wrote to memory of 2472 4960 POP.exe schtasks.exe PID 4960 wrote to memory of 2472 4960 POP.exe schtasks.exe PID 4960 wrote to memory of 4376 4960 POP.exe POP.exe PID 4960 wrote to memory of 4376 4960 POP.exe POP.exe PID 4960 wrote to memory of 4376 4960 POP.exe POP.exe PID 4960 wrote to memory of 4376 4960 POP.exe POP.exe PID 4960 wrote to memory of 4376 4960 POP.exe POP.exe PID 4960 wrote to memory of 4376 4960 POP.exe POP.exe PID 4960 wrote to memory of 4376 4960 POP.exe POP.exe PID 4960 wrote to memory of 4376 4960 POP.exe POP.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\POP.exe"C:\Users\Admin\AppData\Local\Temp\POP.exe"1⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4960 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Local\Temp\POP.exe"2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:3244 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\CXAoYUE.exe"2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:5088 -
C:\Windows\SysWOW64\schtasks.exe"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\CXAoYUE" /XML "C:\Users\Admin\AppData\Local\Temp\tmpAF4B.tmp"2⤵
- Creates scheduled task(s)
PID:2472 -
C:\Users\Admin\AppData\Local\Temp\POP.exe"C:\Users\Admin\AppData\Local\Temp\POP.exe"2⤵
- 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
PID:4376 -
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 4960 -s 17522⤵
- Program crash
PID:3548
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 364 -p 4960 -ip 49601⤵PID:3896
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
2KB
MD5968cb9309758126772781b83adb8a28f
SHA18da30e71accf186b2ba11da1797cf67f8f78b47c
SHA25692099c10776bb7e3f2a8d1b82d4d40d0c4627e4f1bf754a6e58dfd2c2e97042a
SHA5124bd50732f8af4d688d95999bddfd296115d7033ddc38f86c9fb1f47fde202bffa27e9088bebcaa3064ca946af2f5c1ca6cbde49d0907f0005c7ab42874515dd3
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Filesize
18KB
MD534f039addc5f467109344f2e21034e7b
SHA1106365c7d342508bd241c02e874904b54803d5a7
SHA256e6231450201faf94e22f4ca77ad8f9e9533e24c60a3fd975ed84a28994aafdf9
SHA512d47c227dcfc823fb91bef520e065ed083be6365187f53e37c41f89687bbd6afe5c5ee4f12f09d212fc049f31689fba0eba0f0e7ee21ec7fd278f6d8ecca58da0
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Filesize
60B
MD5d17fe0a3f47be24a6453e9ef58c94641
SHA16ab83620379fc69f80c0242105ddffd7d98d5d9d
SHA25696ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
SHA5125b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82
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Filesize
1KB
MD5607eb5a492eab726534ac15ef2af035c
SHA172b98f29b5e96824013b6f52b7e41af619135f21
SHA25627967da3144d853cfbd41861ceba99f369cc933cb8ed7deb5ccea80c76e47da1
SHA5120f42594efe7e9af27785d1fb4c5ae9bbad7631d4488df7d48f852c9eb634ae76c832a969d5d21e45513e88cd430625471066aaed22c03a5f560e8a9f2086b8f4