Analysis
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max time kernel
149s -
max time network
153s -
platform
windows7_x64 -
resource
win7-20220812-en -
resource tags
arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system -
submitted
14/11/2022, 18:46
Static task
static1
Behavioral task
behavioral1
Sample
85605a584d908e5a32d91767940f7aab.exe
Resource
win7-20220812-en
General
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Target
85605a584d908e5a32d91767940f7aab.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\SCSI Service = "C:\\Program Files (x86)\\SCSI Service\\scsisvc.exe" MSBuild.exe -
Suspicious use of SetThreadContext 1 IoCs
description pid Process procid_target PID 1100 set thread context of 2044 1100 85605a584d908e5a32d91767940f7aab.exe 30 -
Drops file in Program Files directory 2 IoCs
description ioc Process File created C:\Program Files (x86)\SCSI Service\scsisvc.exe MSBuild.exe File opened for modification C:\Program Files (x86)\SCSI Service\scsisvc.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 1348 schtasks.exe -
Suspicious behavior: EnumeratesProcesses 3 IoCs
pid Process 1100 85605a584d908e5a32d91767940f7aab.exe 2044 MSBuild.exe 2044 MSBuild.exe -
Suspicious behavior: GetForegroundWindowSpam 1 IoCs
pid Process 2044 MSBuild.exe -
Suspicious use of AdjustPrivilegeToken 2 IoCs
description pid Process Token: SeDebugPrivilege 1100 85605a584d908e5a32d91767940f7aab.exe Token: SeDebugPrivilege 2044 MSBuild.exe -
Suspicious use of WriteProcessMemory 13 IoCs
description pid Process procid_target PID 1100 wrote to memory of 1348 1100 85605a584d908e5a32d91767940f7aab.exe 28 PID 1100 wrote to memory of 1348 1100 85605a584d908e5a32d91767940f7aab.exe 28 PID 1100 wrote to memory of 1348 1100 85605a584d908e5a32d91767940f7aab.exe 28 PID 1100 wrote to memory of 1348 1100 85605a584d908e5a32d91767940f7aab.exe 28 PID 1100 wrote to memory of 2044 1100 85605a584d908e5a32d91767940f7aab.exe 30 PID 1100 wrote to memory of 2044 1100 85605a584d908e5a32d91767940f7aab.exe 30 PID 1100 wrote to memory of 2044 1100 85605a584d908e5a32d91767940f7aab.exe 30 PID 1100 wrote to memory of 2044 1100 85605a584d908e5a32d91767940f7aab.exe 30 PID 1100 wrote to memory of 2044 1100 85605a584d908e5a32d91767940f7aab.exe 30 PID 1100 wrote to memory of 2044 1100 85605a584d908e5a32d91767940f7aab.exe 30 PID 1100 wrote to memory of 2044 1100 85605a584d908e5a32d91767940f7aab.exe 30 PID 1100 wrote to memory of 2044 1100 85605a584d908e5a32d91767940f7aab.exe 30 PID 1100 wrote to memory of 2044 1100 85605a584d908e5a32d91767940f7aab.exe 30
Processes
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C:\Users\Admin\AppData\Local\Temp\85605a584d908e5a32d91767940f7aab.exe"C:\Users\Admin\AppData\Local\Temp\85605a584d908e5a32d91767940f7aab.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1100 -
C:\Windows\SysWOW64\schtasks.exe"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\TztnPxRQQq" /XML "C:\Users\Admin\AppData\Local\Temp\tmp6817.tmp"2⤵
- Creates scheduled task(s)
PID:1348
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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:2044
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Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
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Filesize
1KB
MD5dbad560061053f3ac9fdac7a020fd242
SHA1fb1e829d9140aea21ac30bf6f29e8ce6f02a01db
SHA2565b36c4b645ffada7f7f8e53cbbd2f64b22d997d4c4fe0632171c87e8e985724d
SHA512dd65fe52bdd78f57528127dcee2eba0e484472188d824af606817e92733e2d31e8dc38f327953596bba0b1c7b8e8cfb0f8a1caf77e2a28cc8c076d068c3b59da