Analysis
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max time kernel
145s -
max time network
150s -
platform
windows7_x64 -
resource
win7-20220812-en -
resource tags
arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system -
submitted
16/11/2022, 14:12
Static task
static1
Behavioral task
behavioral1
Sample
3f0a89e3647d4ff575fc0c8db1ea5e9f7dbf2c0041f90ec2ef26c7eab69b34f8.exe
Resource
win7-20220812-en
General
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Target
3f0a89e3647d4ff575fc0c8db1ea5e9f7dbf2c0041f90ec2ef26c7eab69b34f8.exe
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Size
907KB
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MD5
85605a584d908e5a32d91767940f7aab
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SHA1
4568b524b21c8cea9ae297ab782ac95a33a61e59
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SHA256
3f0a89e3647d4ff575fc0c8db1ea5e9f7dbf2c0041f90ec2ef26c7eab69b34f8
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SHA512
a43af329a798947bc8b2473436de1092f51b3ac23f0f562c59c4b263216d00d6a9b39b4e3a4255d00cb7dfaebcb26563be5df321b0f4d049071ec90c5cfd156e
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SSDEEP
12288:sANiU251k3btMOKdeyqo6x+UXndim70h+qrDMJ65AqQR1I9tWAlEsZqxJU2V8:sAToEhMVioctP70h+r0yqEspVqk2W
Malware Config
Extracted
nanocore
1.2.2.0
maxlogs.webhop.me:1620
9d764268-05c2-4a8e-8c39-b4db356d4640
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activate_away_mode
true
- backup_connection_host
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backup_dns_server
8.8.4.4
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buffer_size
65535
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build_time
2020-05-29T07:34:04.203922136Z
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bypass_user_account_control
true
- bypass_user_account_control_data
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clear_access_control
true
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clear_zone_identifier
false
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connect_delay
4000
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connection_port
1620
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default_group
x
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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
9d764268-05c2-4a8e-8c39-b4db356d4640
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mutex_timeout
5000
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prevent_system_sleep
false
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primary_connection_host
maxlogs.webhop.me
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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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Adds Run key to start application 2 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\UDP Service = "C:\\Program Files (x86)\\UDP Service\\udpsv.exe" MSBuild.exe -
Suspicious use of SetThreadContext 1 IoCs
description pid Process procid_target PID 784 set thread context of 1444 784 3f0a89e3647d4ff575fc0c8db1ea5e9f7dbf2c0041f90ec2ef26c7eab69b34f8.exe 28 -
Drops file in Program Files directory 2 IoCs
description ioc Process File created C:\Program Files (x86)\UDP Service\udpsv.exe MSBuild.exe File opened for modification C:\Program Files (x86)\UDP Service\udpsv.exe MSBuild.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
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Creates scheduled task(s) 1 TTPs 1 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
pid Process 936 schtasks.exe -
Suspicious behavior: EnumeratesProcesses 3 IoCs
pid Process 784 3f0a89e3647d4ff575fc0c8db1ea5e9f7dbf2c0041f90ec2ef26c7eab69b34f8.exe 1444 MSBuild.exe 1444 MSBuild.exe -
Suspicious behavior: GetForegroundWindowSpam 1 IoCs
pid Process 1444 MSBuild.exe -
Suspicious use of AdjustPrivilegeToken 2 IoCs
description pid Process Token: SeDebugPrivilege 784 3f0a89e3647d4ff575fc0c8db1ea5e9f7dbf2c0041f90ec2ef26c7eab69b34f8.exe Token: SeDebugPrivilege 1444 MSBuild.exe -
Suspicious use of WriteProcessMemory 13 IoCs
description pid Process procid_target PID 784 wrote to memory of 936 784 3f0a89e3647d4ff575fc0c8db1ea5e9f7dbf2c0041f90ec2ef26c7eab69b34f8.exe 26 PID 784 wrote to memory of 936 784 3f0a89e3647d4ff575fc0c8db1ea5e9f7dbf2c0041f90ec2ef26c7eab69b34f8.exe 26 PID 784 wrote to memory of 936 784 3f0a89e3647d4ff575fc0c8db1ea5e9f7dbf2c0041f90ec2ef26c7eab69b34f8.exe 26 PID 784 wrote to memory of 936 784 3f0a89e3647d4ff575fc0c8db1ea5e9f7dbf2c0041f90ec2ef26c7eab69b34f8.exe 26 PID 784 wrote to memory of 1444 784 3f0a89e3647d4ff575fc0c8db1ea5e9f7dbf2c0041f90ec2ef26c7eab69b34f8.exe 28 PID 784 wrote to memory of 1444 784 3f0a89e3647d4ff575fc0c8db1ea5e9f7dbf2c0041f90ec2ef26c7eab69b34f8.exe 28 PID 784 wrote to memory of 1444 784 3f0a89e3647d4ff575fc0c8db1ea5e9f7dbf2c0041f90ec2ef26c7eab69b34f8.exe 28 PID 784 wrote to memory of 1444 784 3f0a89e3647d4ff575fc0c8db1ea5e9f7dbf2c0041f90ec2ef26c7eab69b34f8.exe 28 PID 784 wrote to memory of 1444 784 3f0a89e3647d4ff575fc0c8db1ea5e9f7dbf2c0041f90ec2ef26c7eab69b34f8.exe 28 PID 784 wrote to memory of 1444 784 3f0a89e3647d4ff575fc0c8db1ea5e9f7dbf2c0041f90ec2ef26c7eab69b34f8.exe 28 PID 784 wrote to memory of 1444 784 3f0a89e3647d4ff575fc0c8db1ea5e9f7dbf2c0041f90ec2ef26c7eab69b34f8.exe 28 PID 784 wrote to memory of 1444 784 3f0a89e3647d4ff575fc0c8db1ea5e9f7dbf2c0041f90ec2ef26c7eab69b34f8.exe 28 PID 784 wrote to memory of 1444 784 3f0a89e3647d4ff575fc0c8db1ea5e9f7dbf2c0041f90ec2ef26c7eab69b34f8.exe 28
Processes
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C:\Users\Admin\AppData\Local\Temp\3f0a89e3647d4ff575fc0c8db1ea5e9f7dbf2c0041f90ec2ef26c7eab69b34f8.exe"C:\Users\Admin\AppData\Local\Temp\3f0a89e3647d4ff575fc0c8db1ea5e9f7dbf2c0041f90ec2ef26c7eab69b34f8.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:784 -
C:\Windows\SysWOW64\schtasks.exe"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\TztnPxRQQq" /XML "C:\Users\Admin\AppData\Local\Temp\tmpEA7F.tmp"2⤵
- Creates scheduled task(s)
PID:936
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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:1444
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Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
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Filesize
1KB
MD5a841247c97a339c90d5b3621a45611dc
SHA1f0c2cf0930733a87dc8ac00b75b7d509c5dbeec1
SHA2560f90febd5d4ccae84fc8ebf5ffb64450795a429328d3f0c8f637d45abfda3009
SHA512547ff6bd2ebfabac04d3be976ba3f01571fc591ecbba25cc5758a07ba5be38edf53f903be9bb66fa37a29f59af4ddfac22d9dae3bfaeec0932a191d5af620858