Analysis
- max time kernel
133s - max time network
153s - platform
windows10-2004_x64 - resource
win10v2004-en-20220112 - submitted
28/02/2022, 16:57
General
- Target dae8588b604d0728a1a1ecc77096197a34ed1b22ae7de.exe
- Size 38KB
- Sample220228-vf9bsagbcn
- SHA256 dae8588b604d0728a1a1ecc77096197a34ed1b22ae7de69a53f39b59e6574ffd
Malware Config
Extracted
-
xloader
-
2.5
-
efa8
-
partyglows.com
-
baoshule.com
-
pitayi.com
-
allthings55.com
-
59bluebell.com
-
lightirotoyof4.xyz
-
eastmontapartments.com
-
digitalestatemanagement.xyz
-
h-dstation.com
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raydiumio.com
-
vascopy.net
-
realcoloradonorth.net
-
stepfantasy.media
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sztunfeng.com
-
suruizphotography.net
-
theapcenter.com
-
elliostransport.com
-
compudocsi.com
-
noropiedra.com
-
amagiadapele.com
Extracted
-
nanocore
-
1.2.2.0
-
2.56.56.96:111
-
da0219ba-17ab-4f8a-9d8a-d9a6df9b767a
-
activate_away_mode
true
- backup_connection_host
-
backup_dns_server
8.8.4.4
-
buffer_size
65535
-
build_time
2021-10-11T15:23:19.381686436Z
-
bypass_user_account_control
true
- bypass_user_account_control_data
-
clear_access_control
true
-
clear_zone_identifier
false
-
connect_delay
4000
-
connection_port
111
-
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
da0219ba-17ab-4f8a-9d8a-d9a6df9b767a
-
mutex_timeout
5000
-
prevent_system_sleep
false
-
primary_connection_host
2.56.56.96
-
primary_dns_server
8.8.8.8
-
request_elevation
true
-
restart_delay
5000
-
run_delay
0
-
run_on_startup
true
-
set_critical_process
true
-
timeout_interval
5000
-
use_custom_dns_server
false
-
version
1.2.2.0
-
wan_timeout
8000
Signatures
- NanoCore
NanoCore is a remote access tool (RAT) with a variety of capabilities.
- Xloader
Xloader is a rebranded version of Formbook malware.
- Xloader Payload 1 IoCs
- Executes dropped EXE 2 IoCs
- Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
- Adds Run key to start application 2 TTPs 2 IoCs
- Checks whether UAC is enabled 1 TTPs 1 IoCs
- Suspicious use of SetThreadContext 2 IoCs
- Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
- Suspicious behavior: EnumeratesProcesses 12 IoCs
- Suspicious behavior: GetForegroundWindowSpam 1 IoCs
- Suspicious use of AdjustPrivilegeToken 3 IoCs
- Suspicious use of WriteProcessMemory 17 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\dae8588b604d0728a1a1ecc77096197a34ed1b22ae7de.exe"C:\Users\Admin\AppData\Local\Temp\dae8588b604d0728a1a1ecc77096197a34ed1b22ae7de.exe"1⤵
- Checks computer location settings
- Adds Run key to start application
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\Temp\Cahyhapnvxwdhmxdsculqpsx.exe"C:\Users\Admin\AppData\Local\Temp\Cahyhapnvxwdhmxdsculqpsx.exe"2⤵
- Executes dropped EXE
- Adds Run key to start application
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\Temp\Cahyhapnvxwdhmxdsculqpsx.exeC:\Users\Admin\AppData\Local\Temp\Cahyhapnvxwdhmxdsculqpsx.exe3⤵
- Executes dropped EXE
- Checks whether UAC is enabled
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of AdjustPrivilegeToken
-
-
-
C:\Users\Admin\AppData\Local\Temp\dae8588b604d0728a1a1ecc77096197a34ed1b22ae7de.exeC:\Users\Admin\AppData\Local\Temp\dae8588b604d0728a1a1ecc77096197a34ed1b22ae7de.exe2⤵
- Suspicious behavior: EnumeratesProcesses
-
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
memory/752-152-0x0000000005320000-0x0000000005321000-memory.dmp
memory/752-151-0x0000000005050000-0x000000000505A000-memory.dmp
memory/752-150-0x0000000005150000-0x00000000051EC000-memory.dmp
memory/752-149-0x0000000074B9E000-0x0000000074B9F000-memory.dmp
memory/752-146-0x0000000000400000-0x0000000000438000-memory.dmp
memory/2136-140-0x0000000000B60000-0x0000000000B6C000-memory.dmp
memory/2136-141-0x0000000074B9E000-0x0000000074B9F000-memory.dmp
memory/2136-142-0x0000000005360000-0x0000000005361000-memory.dmp
memory/2440-143-0x0000000000400000-0x0000000000429000-memory.dmp
memory/2440-144-0x0000000001B80000-0x0000000001ECA000-memory.dmp
memory/2884-130-0x0000000074B9E000-0x0000000074B9F000-memory.dmp
memory/2884-139-0x00000000064C0000-0x0000000006526000-memory.dmp
memory/2884-136-0x00000000061B0000-0x0000000006242000-memory.dmp
memory/2884-135-0x0000000006760000-0x0000000006D04000-memory.dmp
memory/2884-134-0x00000000060F0000-0x00000000061A2000-memory.dmp
memory/2884-133-0x0000000005FE0000-0x0000000006030000-memory.dmp
memory/2884-132-0x00000000052D0000-0x00000000052D1000-memory.dmp
memory/2884-131-0x0000000000990000-0x00000000009A0000-memory.dmp