Analysis
-
max time kernel
144s -
max time network
149s -
platform
windows10-2004_x64 -
resource
win10v2004-20231130-en -
resource tags
arch:x64arch:x86image:win10v2004-20231130-enlocale:en-usos:windows10-2004-x64system -
submitted
04/12/2023, 07:55
Static task
static1
General
-
Target
6e4a05f7b769a8cb12f932281af71be353b058d68a3f96bd00a38b63e78bae70.exe
-
Size
780KB
-
MD5
cc0f6af0ea57fc9cb9698c534fbbe1b2
-
SHA1
4fd4acb6716bfb889f685045d00662fb3d46be78
-
SHA256
6e4a05f7b769a8cb12f932281af71be353b058d68a3f96bd00a38b63e78bae70
-
SHA512
eaf6132501ad4e9e213606afcc164c4dd8dca4a9a685d2411e23ff4b51ea1a4eddded73d2c953b633d1e92bd052789b6a41daae19a2654fa556392fa5904e4e3
-
SSDEEP
12288:FW8tW8G34/uK45+po2op+9icdMJG0Bi3SQuFBASUFFJR92DGMAvWrQnTIRy8OJ/k:e34/up+pJzl50ySXASKCyTwecRy83
Malware Config
Extracted
nanocore
1.2.2.0
btldinc7.sytes.net:4510
127.0.0.1:4510
8dca47d1-e2ac-4cf4-9dae-489155036caa
-
activate_away_mode
true
-
backup_connection_host
127.0.0.1
-
backup_dns_server
8.8.4.4
-
buffer_size
65535
-
build_time
2023-09-14T23:25:11.588272936Z
-
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
4510
-
default_group
btld
-
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
8dca47d1-e2ac-4cf4-9dae-489155036caa
-
mutex_timeout
5000
-
prevent_system_sleep
false
-
primary_connection_host
btldinc7.sytes.net
-
primary_dns_server
8.8.8.8
-
request_elevation
true
-
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
-
Adds Run key to start application 2 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\ISS Monitor = "C:\\Program Files (x86)\\ISS Monitor\\issmon.exe" 6e4a05f7b769a8cb12f932281af71be353b058d68a3f96bd00a38b63e78bae70.exe -
description ioc Process Key value queried \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA 6e4a05f7b769a8cb12f932281af71be353b058d68a3f96bd00a38b63e78bae70.exe -
Suspicious use of SetThreadContext 1 IoCs
description pid Process procid_target PID 4916 set thread context of 4244 4916 6e4a05f7b769a8cb12f932281af71be353b058d68a3f96bd00a38b63e78bae70.exe 89 -
Drops file in Program Files directory 2 IoCs
description ioc Process File created C:\Program Files (x86)\ISS Monitor\issmon.exe 6e4a05f7b769a8cb12f932281af71be353b058d68a3f96bd00a38b63e78bae70.exe File opened for modification C:\Program Files (x86)\ISS Monitor\issmon.exe 6e4a05f7b769a8cb12f932281af71be353b058d68a3f96bd00a38b63e78bae70.exe -
Creates scheduled task(s) 1 TTPs 2 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
pid Process 5104 schtasks.exe 3380 schtasks.exe -
Suspicious behavior: EnumeratesProcesses 3 IoCs
pid Process 4244 6e4a05f7b769a8cb12f932281af71be353b058d68a3f96bd00a38b63e78bae70.exe 4244 6e4a05f7b769a8cb12f932281af71be353b058d68a3f96bd00a38b63e78bae70.exe 4244 6e4a05f7b769a8cb12f932281af71be353b058d68a3f96bd00a38b63e78bae70.exe -
Suspicious behavior: GetForegroundWindowSpam 1 IoCs
pid Process 4244 6e4a05f7b769a8cb12f932281af71be353b058d68a3f96bd00a38b63e78bae70.exe -
Suspicious use of AdjustPrivilegeToken 1 IoCs
description pid Process Token: SeDebugPrivilege 4244 6e4a05f7b769a8cb12f932281af71be353b058d68a3f96bd00a38b63e78bae70.exe -
Suspicious use of WriteProcessMemory 14 IoCs
description pid Process procid_target PID 4916 wrote to memory of 4244 4916 6e4a05f7b769a8cb12f932281af71be353b058d68a3f96bd00a38b63e78bae70.exe 89 PID 4916 wrote to memory of 4244 4916 6e4a05f7b769a8cb12f932281af71be353b058d68a3f96bd00a38b63e78bae70.exe 89 PID 4916 wrote to memory of 4244 4916 6e4a05f7b769a8cb12f932281af71be353b058d68a3f96bd00a38b63e78bae70.exe 89 PID 4916 wrote to memory of 4244 4916 6e4a05f7b769a8cb12f932281af71be353b058d68a3f96bd00a38b63e78bae70.exe 89 PID 4916 wrote to memory of 4244 4916 6e4a05f7b769a8cb12f932281af71be353b058d68a3f96bd00a38b63e78bae70.exe 89 PID 4916 wrote to memory of 4244 4916 6e4a05f7b769a8cb12f932281af71be353b058d68a3f96bd00a38b63e78bae70.exe 89 PID 4916 wrote to memory of 4244 4916 6e4a05f7b769a8cb12f932281af71be353b058d68a3f96bd00a38b63e78bae70.exe 89 PID 4916 wrote to memory of 4244 4916 6e4a05f7b769a8cb12f932281af71be353b058d68a3f96bd00a38b63e78bae70.exe 89 PID 4244 wrote to memory of 5104 4244 6e4a05f7b769a8cb12f932281af71be353b058d68a3f96bd00a38b63e78bae70.exe 90 PID 4244 wrote to memory of 5104 4244 6e4a05f7b769a8cb12f932281af71be353b058d68a3f96bd00a38b63e78bae70.exe 90 PID 4244 wrote to memory of 5104 4244 6e4a05f7b769a8cb12f932281af71be353b058d68a3f96bd00a38b63e78bae70.exe 90 PID 4244 wrote to memory of 3380 4244 6e4a05f7b769a8cb12f932281af71be353b058d68a3f96bd00a38b63e78bae70.exe 92 PID 4244 wrote to memory of 3380 4244 6e4a05f7b769a8cb12f932281af71be353b058d68a3f96bd00a38b63e78bae70.exe 92 PID 4244 wrote to memory of 3380 4244 6e4a05f7b769a8cb12f932281af71be353b058d68a3f96bd00a38b63e78bae70.exe 92
Processes
-
C:\Users\Admin\AppData\Local\Temp\6e4a05f7b769a8cb12f932281af71be353b058d68a3f96bd00a38b63e78bae70.exe"C:\Users\Admin\AppData\Local\Temp\6e4a05f7b769a8cb12f932281af71be353b058d68a3f96bd00a38b63e78bae70.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:4916 -
C:\Users\Admin\AppData\Local\Temp\6e4a05f7b769a8cb12f932281af71be353b058d68a3f96bd00a38b63e78bae70.exe"C:\Users\Admin\AppData\Local\Temp\6e4a05f7b769a8cb12f932281af71be353b058d68a3f96bd00a38b63e78bae70.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
- Suspicious use of WriteProcessMemory
PID:4244 -
C:\Windows\SysWOW64\schtasks.exe"schtasks.exe" /create /f /tn "ISS Monitor" /xml "C:\Users\Admin\AppData\Local\Temp\tmp8107.tmp"3⤵
- Creates scheduled task(s)
PID:5104
-
-
C:\Windows\SysWOW64\schtasks.exe"schtasks.exe" /create /f /tn "ISS Monitor Task" /xml "C:\Users\Admin\AppData\Local\Temp\tmp8147.tmp"3⤵
- Creates scheduled task(s)
PID:3380
-
-
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
Loading Replay Monitor...
Downloads
-
C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\6e4a05f7b769a8cb12f932281af71be353b058d68a3f96bd00a38b63e78bae70.exe.log
Filesize1KB
MD58ec831f3e3a3f77e4a7b9cd32b48384c
SHA1d83f09fd87c5bd86e045873c231c14836e76a05c
SHA2567667e538030e3f8ce2886e47a01af24cb0ea70528b1e821c5d8832c5076cb982
SHA51226bffa2406b66368bd412bf25869a792631455645992cdcade2dbc13a2e56fb546414a6a9223b94c96c38d89187add6678d4779a88b38b0c9e36be8527b213c3
-
Filesize
1KB
MD53e51d5e4e7e3dfc9ed30d5417edea2cb
SHA12ede27804cdb862499c627f3debcda7c584a0c21
SHA2561d00d6de3ec0ef1264939db8a9071eaee2f6e6f648a93630900a0f097a1980ae
SHA512bf44eb55f50705b13553fc2dc300836c491755f3f98cbda43dc1d60db26cb1799aab5941d1b4555acb0b48728f3126aa52affa5b4788f1ab36971e938756b90c
-
Filesize
1KB
MD597ca1345e92062cecc79ad320a0e89b1
SHA19e696a4df86c685befe01d00a16611331ed7e763
SHA256937a440251a10c5a8921104975e5b7f166a34be5e48aa5c4ad344f8beadd1ad2
SHA512b7cce6586e4db4e387343c01977b0768fca8c4842098f1caf7e4240fa89273279b1ade5ed25aaf108102dd06c0ee945a24cf4786eb24de34520b4c11c2e82214