Analysis
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max time kernel
146s -
max time network
146s -
platform
windows10_x64 -
resource
win10v200430 -
submitted
30-06-2020 13:02
Static task
static1
Behavioral task
behavioral1
Sample
ZtwPj90AM5uNjVx.exe
Resource
win7
General
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Target
ZtwPj90AM5uNjVx.exe
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Size
390KB
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MD5
4c05e57f9047e2206f9e1d168fa06481
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SHA1
6346ac10485dfb99bbf1a2570d306feacda3f7ba
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SHA256
dd02cb85d94d9d687d5de330f198abd8f1a84720947c03dfad880526830986f3
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SHA512
3f09c8173095b5fff64a43b0ba8259d9f358a27b55ab6fec637d93683f7abfb949edf89937481d3b15920329b1e41f34544203cc22976da6f6dc3334935a43fd
Malware Config
Extracted
nanocore
1.2.2.0
91.193.75.58:1985
596c2bb9-90b7-4362-af9a-082627ebed15
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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
2020-03-30T21:40:30.911959536Z
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bypass_user_account_control
true
- bypass_user_account_control_data
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clear_access_control
false
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clear_zone_identifier
false
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connect_delay
4000
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connection_port
1985
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default_group
official
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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
596c2bb9-90b7-4362-af9a-082627ebed15
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mutex_timeout
5000
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prevent_system_sleep
true
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primary_connection_host
91.193.75.58
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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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Suspicious behavior: GetForegroundWindowSpam 1 IoCs
Processes:
RegSvcs.exepid process 2816 RegSvcs.exe -
Adds Run entry to start application 2 TTPs 1 IoCs
Processes:
RegSvcs.exedescription ioc process Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\SCSI Manager = "C:\\Program Files (x86)\\SCSI Manager\\scsimgr.exe" RegSvcs.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 9 IoCs
Processes:
ZtwPj90AM5uNjVx.exeRegSvcs.exepid process 3544 ZtwPj90AM5uNjVx.exe 3544 ZtwPj90AM5uNjVx.exe 3544 ZtwPj90AM5uNjVx.exe 2816 RegSvcs.exe 2816 RegSvcs.exe 2816 RegSvcs.exe 2816 RegSvcs.exe 2816 RegSvcs.exe 2816 RegSvcs.exe -
Suspicious use of AdjustPrivilegeToken 2 IoCs
Processes:
ZtwPj90AM5uNjVx.exeRegSvcs.exedescription pid process Token: SeDebugPrivilege 3544 ZtwPj90AM5uNjVx.exe Token: SeDebugPrivilege 2816 RegSvcs.exe -
Suspicious use of SetThreadContext 1 IoCs
Processes:
ZtwPj90AM5uNjVx.exedescription pid process target process PID 3544 set thread context of 2816 3544 ZtwPj90AM5uNjVx.exe RegSvcs.exe -
Drops file in Program Files directory 2 IoCs
Processes:
RegSvcs.exedescription ioc process File created C:\Program Files (x86)\SCSI Manager\scsimgr.exe RegSvcs.exe File opened for modification C:\Program Files (x86)\SCSI Manager\scsimgr.exe RegSvcs.exe -
Processes:
RegSvcs.exedescription ioc process Key value queried \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA RegSvcs.exe -
Suspicious use of WriteProcessMemory 14 IoCs
Processes:
ZtwPj90AM5uNjVx.exedescription pid process target process PID 3544 wrote to memory of 2472 3544 ZtwPj90AM5uNjVx.exe schtasks.exe PID 3544 wrote to memory of 2472 3544 ZtwPj90AM5uNjVx.exe schtasks.exe PID 3544 wrote to memory of 2472 3544 ZtwPj90AM5uNjVx.exe schtasks.exe PID 3544 wrote to memory of 2800 3544 ZtwPj90AM5uNjVx.exe RegSvcs.exe PID 3544 wrote to memory of 2800 3544 ZtwPj90AM5uNjVx.exe RegSvcs.exe PID 3544 wrote to memory of 2800 3544 ZtwPj90AM5uNjVx.exe RegSvcs.exe PID 3544 wrote to memory of 2816 3544 ZtwPj90AM5uNjVx.exe RegSvcs.exe PID 3544 wrote to memory of 2816 3544 ZtwPj90AM5uNjVx.exe RegSvcs.exe PID 3544 wrote to memory of 2816 3544 ZtwPj90AM5uNjVx.exe RegSvcs.exe PID 3544 wrote to memory of 2816 3544 ZtwPj90AM5uNjVx.exe RegSvcs.exe PID 3544 wrote to memory of 2816 3544 ZtwPj90AM5uNjVx.exe RegSvcs.exe PID 3544 wrote to memory of 2816 3544 ZtwPj90AM5uNjVx.exe RegSvcs.exe PID 3544 wrote to memory of 2816 3544 ZtwPj90AM5uNjVx.exe RegSvcs.exe PID 3544 wrote to memory of 2816 3544 ZtwPj90AM5uNjVx.exe RegSvcs.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\ZtwPj90AM5uNjVx.exe"C:\Users\Admin\AppData\Local\Temp\ZtwPj90AM5uNjVx.exe"1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\schtasks.exe"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\EmEIYFCwLYSPp" /XML "C:\Users\Admin\AppData\Local\Temp\tmp2D9E.tmp"2⤵
- Creates scheduled task(s)
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C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegSvcs.exe"{path}"2⤵
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C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegSvcs.exe"{path}"2⤵
- Suspicious behavior: GetForegroundWindowSpam
- Adds Run entry to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Drops file in Program Files directory
- Checks whether UAC is enabled