General
- Target VHS558.exe
- Size 203KB
- Sample260802-fp8dhsdd64
- SHA256 b9e2aff345e16ac8c58b020b5a4ecc159d545f1b303f2c830b0f5a221468b639
- MD5 cb0ad057ddf245740b066a8b0b1b9f99
- SHA1 7cda02d06957811c1754b5495358e229ef7123a0
- SHA512 846bf99794ae510f3601850de6ab9e463f5bd1d03579f3b8f7dd09cb9a431808c0e361f42c0583337e46ab1d3a12419a152e6d68c6653c79fbcd34a5d38c9105
- SSDEEP 6144:sLV6Bta6dtJmakIM5BZmvN1onPN5rjfmQx:sLV6BtpmkfvN1MNR1x
- TLSH T1D314CF167BA88A2FE2DE8679601252129378C2E3D8C3F3DF28D855B65F177E50A470D3
- MD5 SHA1 SHA512 SSDEEP TLSH
Behavioral task
behavioral1
Sample
VHS558.exe
Resource
win10v2004-20260513-en
Behavioral task
behavioral2
Sample
VHS558.exe
Resource
win11ltsc2024-20260709-en
Malware Config
Extracted
-
nanocore
-
1.2.2.0
-
kema.io:443
-
www.kema.io:443
-
3df2f1a4-08ce-4c2f-85a6-c5603db0d056
-
activate_away_mode
true
-
backup_connection_host
www.kema.io
-
backup_dns_server
8.8.4.4
-
buffer_size
65535
-
build_time
2026-05-14T06:19:16.097475936Z
-
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
443
-
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
3df2f1a4-08ce-4c2f-85a6-c5603db0d056
-
mutex_timeout
5000
-
prevent_system_sleep
false
-
primary_connection_host
kema.io
-
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
Targets
-
- Target VHS558.exe
- Size 203KB
- SHA256 b9e2aff345e16ac8c58b020b5a4ecc159d545f1b303f2c830b0f5a221468b639
- MD5 cb0ad057ddf245740b066a8b0b1b9f99
- SHA1 7cda02d06957811c1754b5495358e229ef7123a0
- SHA512 846bf99794ae510f3601850de6ab9e463f5bd1d03579f3b8f7dd09cb9a431808c0e361f42c0583337e46ab1d3a12419a152e6d68c6653c79fbcd34a5d38c9105
- SSDEEP 6144:sLV6Bta6dtJmakIM5BZmvN1onPN5rjfmQx:sLV6BtpmkfvN1MNR1x
- TLSH T1D314CF167BA88A2FE2DE8679601252129378C2E3D8C3F3DF28D855B65F177E50A470D3
- MD5 SHA1 SHA512 SSDEEP TLSH
-
Executes dropped EXE
-
Adds Run key to start application
-
Checks whether UAC is enabled
MITRE ATT&CK Enterprise v16
Persistence
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Scheduled Task/Job
1Scheduled Task
1Privilege Escalation
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Scheduled Task/Job
1Scheduled Task
1