nanocore | cc8c9c2b686ecd3405b08296d2f2da20a5785d02ee932e16ea7a912825a90b60

Analysis

max time kernel
149s
max time network
152s
platform
windows10-2004_x64
resource
win10v2004-20220414-en
submitted
06/05/2022, 16:15

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General

Target
e3132cbe381c92f977d252719317689b.exe
Size 560KB
Sample220506-tp8aeaabc3
SHA256 cc8c9c2b686ecd3405b08296d2f2da20a5785d02ee932e16ea7a912825a90b60
MD5 e3132cbe381c92f977d252719317689b
SHA1 4d689726b436ecf8d3ee1438f8393f7f20f92641
SHA512 7818ca03e1e28a22dd0486c5ed9aa91d4f39962180bb4f22ec1bf16654c33b4afa4d766a2665c6714267bb8ce46045290d906a874b2f62a24c07f4116259ed07
MD5 SHA1 SHA512

Score

10^/10

nanocore keylogger persistence spyware stealer trojan

Malware Config

Extracted

Family

nanocore

Version

1.2.2.0

surya.ddns.net:50421
185.19.85.175:50421

Mutex

db859f8f-dd41-4cc6-82a2-616a59f8108c

Attributes

activate_away_mode
false
backup_connection_host
185.19.85.175
backup_dns_server
buffer_size
65538
build_time
2022-02-13T19:42:33.329888736Z
bypass_user_account_control
false
bypass_user_account_control_data
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
clear_access_control
false
clear_zone_identifier
false
connect_delay
4000
connection_port
50421
default_group
0SPEED
enable_debug_mode
true
gc_threshold
1.0485772e+07
keep_alive_timeout
30000
keyboard_logging
false
lan_timeout
2500
max_packet_size
1.0485772e+07
mutex
db859f8f-dd41-4cc6-82a2-616a59f8108c
mutex_timeout
5000
prevent_system_sleep
false
primary_connection_host
surya.ddns.net
primary_dns_server
request_elevation
true
restart_delay
5000
run_delay
0
run_on_startup
false
set_critical_process
false
timeout_interval
5000
use_custom_dns_server
false
version
1.2.2.0
wan_timeout
8009

Signatures

NanoCore
NanoCore is a remote access tool (RAT) with a variety of capabilities.
keylogger trojan stealer spyware nanocore

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-3751123196-3323558407-1869646069-1000\Control Panel\International\Geo\Nation	e3132cbe381c92f977d252719317689b.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\SCSI Subsystem = "C:\\Program Files (x86)\\SCSI Subsystem\\scsiss.exe"	RegSvcs.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 4984 set thread context of 4676	4984	e3132cbe381c92f977d252719317689b.exe	91

Drops file in Program Files directory 2 IoCs

description	ioc	Process
File created	C:\Program Files (x86)\SCSI Subsystem\scsiss.exe	RegSvcs.exe
File opened for modification	C:\Program Files (x86)\SCSI Subsystem\scsiss.exe	RegSvcs.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082

Creates scheduled task(s) 1 TTPs 3 IoCs

Schtasks is often used by malware for persistence or to perform post-infection execution.

persistence

Scheduled Task

T1053

pid	Process
452	schtasks.exe
1536	schtasks.exe
2184	schtasks.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
4984	e3132cbe381c92f977d252719317689b.exe
4676	RegSvcs.exe
4676	RegSvcs.exe
4676	RegSvcs.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
4676	RegSvcs.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeDebugPrivilege	4984	e3132cbe381c92f977d252719317689b.exe
Token: SeDebugPrivilege	4676	RegSvcs.exe
Token: SeDebugPrivilege	4676	RegSvcs.exe

Suspicious use of WriteProcessMemory 17 IoCs

description	pid	Process	procid_target
PID 4984 wrote to memory of 452	4984	e3132cbe381c92f977d252719317689b.exe	89
PID 4984 wrote to memory of 452	4984	e3132cbe381c92f977d252719317689b.exe	89
PID 4984 wrote to memory of 452	4984	e3132cbe381c92f977d252719317689b.exe	89
PID 4984 wrote to memory of 4676	4984	e3132cbe381c92f977d252719317689b.exe	91
PID 4984 wrote to memory of 4676	4984	e3132cbe381c92f977d252719317689b.exe	91
PID 4984 wrote to memory of 4676	4984	e3132cbe381c92f977d252719317689b.exe	91
PID 4984 wrote to memory of 4676	4984	e3132cbe381c92f977d252719317689b.exe	91
PID 4984 wrote to memory of 4676	4984	e3132cbe381c92f977d252719317689b.exe	91
PID 4984 wrote to memory of 4676	4984	e3132cbe381c92f977d252719317689b.exe	91
PID 4984 wrote to memory of 4676	4984	e3132cbe381c92f977d252719317689b.exe	91
PID 4984 wrote to memory of 4676	4984	e3132cbe381c92f977d252719317689b.exe	91
PID 4676 wrote to memory of 1536	4676	RegSvcs.exe	92
PID 4676 wrote to memory of 1536	4676	RegSvcs.exe	92
PID 4676 wrote to memory of 1536	4676	RegSvcs.exe	92
PID 4676 wrote to memory of 2184	4676	RegSvcs.exe	94
PID 4676 wrote to memory of 2184	4676	RegSvcs.exe	94
PID 4676 wrote to memory of 2184	4676	RegSvcs.exe	94

C:\Users\Admin\AppData\Local\Temp\e3132cbe381c92f977d252719317689b.exe
"C:\Users\Admin\AppData\Local\Temp\e3132cbe381c92f977d252719317689b.exe"
1⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4984
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\wVWIsyvwQvps" /XML "C:\Users\Admin\AppData\Local\Temp\tmpF273.tmp"
  2⤵
  - Creates scheduled task(s)
  PID:452
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.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
  - Suspicious use of WriteProcessMemory
  PID:4676
- - C:\Windows\SysWOW64\schtasks.exe
    "schtasks.exe" /create /f /tn "SCSI Subsystem" /xml "C:\Users\Admin\AppData\Local\Temp\tmpF580.tmp"
    3⤵
    - Creates scheduled task(s)
    PID:1536
- - C:\Windows\SysWOW64\schtasks.exe
    "schtasks.exe" /create /f /tn "SCSI Subsystem Task" /xml "C:\Users\Admin\AppData\Local\Temp\tmpF61E.tmp"
    3⤵
    - Creates scheduled task(s)
    PID:2184

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Scheduled Task

T1053

Persistence

Registry Run Keys / Startup Folder

T1060

Scheduled Task

T1053

Privilege Escalation

Scheduled Task

T1053

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

tmpF273.tmp

Path C:\Users\Admin\AppData\Local\Temp\tmpF273.tmp
Size 1KB
SHA256 2c5134ead1c06dcec591e3eb8d9a38f29dfe68bc217637fc3f03addeaf32f747
MD5 23e9a0a94eea38d4f487248487090b4e
SHA1 c2487f4b6c888408fdc85852495c88f9ae9d0292
SHA512 fa9ababf33f17ac75f69a5c7515168d6d6d9ffb3465fc36c538774428bcfba17eb42e50db2afb9c5d3a68df459e53a1444376965113dff862823af061e32b9a1
MD5 SHA1 SHA512

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tmpF580.tmp

Path C:\Users\Admin\AppData\Local\Temp\tmpF580.tmp
Size 1KB
SHA256 3086d914f6b23268f8a12cb1a05516cd5465c2577e1d1e449f1b45c8e5e8f83c
MD5 8cad1b41587ced0f1e74396794f31d58
SHA1 11054bf74fcf5e8e412768035e4dae43aa7b710f
SHA512 99c2ef89029de51a866df932841684b7fc912df21e10e2dd0d09e400203bbdc6cba6319a31780b7bf8b286d2cea8ea3fc7d084348bf2f002ab4f5a34218ccbef
MD5 SHA1 SHA512

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tmpF61E.tmp

Path C:\Users\Admin\AppData\Local\Temp\tmpF61E.tmp
Size 1KB
SHA256 8135c4e4eeaa741f752c0ab8f4ee33e3bb8a0cac5923812234f2e5177d50eb5b
MD5 bd110f9fc6c1a842f1d9b269010b0611
SHA1 ef71c062902602faef9b66dcd1cfc9fe5baaf389
SHA512 b8a7943a3126880b26407800bbdad5402c5b0e2aa106e7dbbb35d0cb145ca9de114401573a6aa66042a2e13674cfbcc2981d66b813f9b923fff5302210afba1f
MD5 SHA1 SHA512

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memory/4676-139-0x0000000000400000-0x000000000043A000-memory.dmp

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memory/4984-135-0x0000000005130000-0x0000000005186000-memory.dmp

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memory/4984-130-0x0000000000540000-0x00000000005D2000-memory.dmp

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memory/4984-134-0x0000000004EF0000-0x0000000004EFA000-memory.dmp

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memory/4984-133-0x0000000004F80000-0x0000000005012000-memory.dmp

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memory/4984-132-0x0000000005490000-0x0000000005A34000-memory.dmp

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memory/4984-131-0x0000000004E40000-0x0000000004EDC000-memory.dmp

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