Analysis
-
max time kernel
147s -
max time network
153s -
platform
windows10-2004_x64 -
resource
win10v2004-20220901-en -
resource tags
arch:x64arch:x86image:win10v2004-20220901-enlocale:en-usos:windows10-2004-x64system -
submitted
14/11/2022, 18:46
Static task
static1
Behavioral task
behavioral1
Sample
85605a584d908e5a32d91767940f7aab.exe
Resource
win7-20220812-en
General
-
Target
85605a584d908e5a32d91767940f7aab.exe
-
Size
907KB
-
MD5
85605a584d908e5a32d91767940f7aab
-
SHA1
4568b524b21c8cea9ae297ab782ac95a33a61e59
-
SHA256
3f0a89e3647d4ff575fc0c8db1ea5e9f7dbf2c0041f90ec2ef26c7eab69b34f8
-
SHA512
a43af329a798947bc8b2473436de1092f51b3ac23f0f562c59c4b263216d00d6a9b39b4e3a4255d00cb7dfaebcb26563be5df321b0f4d049071ec90c5cfd156e
-
SSDEEP
12288:sANiU251k3btMOKdeyqo6x+UXndim70h+qrDMJ65AqQR1I9tWAlEsZqxJU2V8:sAToEhMVioctP70h+r0yqEspVqk2W
Malware Config
Extracted
nanocore
1.2.2.0
maxlogs.webhop.me:1620
9d764268-05c2-4a8e-8c39-b4db356d4640
-
activate_away_mode
true
- backup_connection_host
-
backup_dns_server
8.8.4.4
-
buffer_size
65535
-
build_time
2020-05-29T07:34:04.203922136Z
-
bypass_user_account_control
true
- bypass_user_account_control_data
-
clear_access_control
true
-
clear_zone_identifier
false
-
connect_delay
4000
-
connection_port
1620
-
default_group
x
-
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
9d764268-05c2-4a8e-8c39-b4db356d4640
-
mutex_timeout
5000
-
prevent_system_sleep
false
-
primary_connection_host
maxlogs.webhop.me
-
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
-
Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
description ioc Process Key value queried \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\Control Panel\International\Geo\Nation 85605a584d908e5a32d91767940f7aab.exe -
Adds Run key to start application 2 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\DHCP Subsystem = "C:\\Program Files (x86)\\DHCP Subsystem\\dhcpss.exe" MSBuild.exe -
Suspicious use of SetThreadContext 1 IoCs
description pid Process procid_target PID 2696 set thread context of 4624 2696 85605a584d908e5a32d91767940f7aab.exe 90 -
Drops file in Program Files directory 2 IoCs
description ioc Process File created C:\Program Files (x86)\DHCP Subsystem\dhcpss.exe MSBuild.exe File opened for modification C:\Program Files (x86)\DHCP Subsystem\dhcpss.exe MSBuild.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
-
Creates scheduled task(s) 1 TTPs 1 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
pid Process 1920 schtasks.exe -
Suspicious behavior: EnumeratesProcesses 4 IoCs
pid Process 2696 85605a584d908e5a32d91767940f7aab.exe 4624 MSBuild.exe 4624 MSBuild.exe 4624 MSBuild.exe -
Suspicious behavior: GetForegroundWindowSpam 1 IoCs
pid Process 4624 MSBuild.exe -
Suspicious use of AdjustPrivilegeToken 2 IoCs
description pid Process Token: SeDebugPrivilege 2696 85605a584d908e5a32d91767940f7aab.exe Token: SeDebugPrivilege 4624 MSBuild.exe -
Suspicious use of WriteProcessMemory 11 IoCs
description pid Process procid_target PID 2696 wrote to memory of 1920 2696 85605a584d908e5a32d91767940f7aab.exe 88 PID 2696 wrote to memory of 1920 2696 85605a584d908e5a32d91767940f7aab.exe 88 PID 2696 wrote to memory of 1920 2696 85605a584d908e5a32d91767940f7aab.exe 88 PID 2696 wrote to memory of 4624 2696 85605a584d908e5a32d91767940f7aab.exe 90 PID 2696 wrote to memory of 4624 2696 85605a584d908e5a32d91767940f7aab.exe 90 PID 2696 wrote to memory of 4624 2696 85605a584d908e5a32d91767940f7aab.exe 90 PID 2696 wrote to memory of 4624 2696 85605a584d908e5a32d91767940f7aab.exe 90 PID 2696 wrote to memory of 4624 2696 85605a584d908e5a32d91767940f7aab.exe 90 PID 2696 wrote to memory of 4624 2696 85605a584d908e5a32d91767940f7aab.exe 90 PID 2696 wrote to memory of 4624 2696 85605a584d908e5a32d91767940f7aab.exe 90 PID 2696 wrote to memory of 4624 2696 85605a584d908e5a32d91767940f7aab.exe 90
Processes
-
C:\Users\Admin\AppData\Local\Temp\85605a584d908e5a32d91767940f7aab.exe"C:\Users\Admin\AppData\Local\Temp\85605a584d908e5a32d91767940f7aab.exe"1⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2696 -
C:\Windows\SysWOW64\schtasks.exe"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\TztnPxRQQq" /XML "C:\Users\Admin\AppData\Local\Temp\tmp271F.tmp"2⤵
- Creates scheduled task(s)
PID:1920
-
-
C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe"{path}"2⤵
- Adds Run key to start application
- Drops file in Program Files directory
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of AdjustPrivilegeToken
PID:4624
-
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
Loading Replay Monitor...
Downloads
-
Filesize
1KB
MD5ae2fa56e63450ec6f0ec73354ed5107c
SHA1334f269e184f8d76f8b4fdba70e7c4c853af5943
SHA256abc08be05a8132aa8e151a04d53621bd3e4a0bfe395f8bd97c4598d0bb28bf60
SHA512a5d2df15877f1d5c92c5090d46931814e169b0f9e47e22aaf86b70c48972f5ac85fffafc83448b4ed7664cd9a41c177a8f110aa01fd159bdb705b357c8b3715b