nanocore | 9530780503c903e1d83738e19e754c3756e067612adddcea2f64c25749b6a838

Analysis

max time kernel
101s
max time network
152s
platform
windows7_x64
resource
win7-20220414-en
submitted
08/06/2022, 02:47

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General

Target
1a9206d71c5406abd2c44bb2ce0acdab.exe
Size 876KB
Sample220608-c9zekaedbr
SHA256 9530780503c903e1d83738e19e754c3756e067612adddcea2f64c25749b6a838
MD5 1a9206d71c5406abd2c44bb2ce0acdab
SHA1 44e86fb77850d78374de97f6b8354e0198bcec3d
SHA512 26f0d70cd91851e7711cedb21c2db24e7e8fca4e8a4222c6045c181c696ce0d296821035f6ef4ee654f33f600e82afc6befc9168076c288a9ecdee8b2f099b8d
MD5 SHA1 SHA512

Score

10^/10

nanocore evasion keylogger persistence spyware stealer trojan

Malware Config

Extracted

Family

nanocore

Version

1.2.2.0

mrniceguyinc.bounceme.net:1001
127.0.0.1:1001

Mutex

315386f6-ec67-4fc5-9602-93a72759d083

Attributes

activate_away_mode
true
backup_connection_host
127.0.0.1
backup_dns_server
8.8.4.4
buffer_size
65535
build_time
2022-03-18T18:29:12.098263736Z
bypass_user_account_control
false
bypass_user_account_control_data
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
clear_access_control
true
clear_zone_identifier
false
connect_delay
4000
connection_port
1001
default_group
MrNiceGuy
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
315386f6-ec67-4fc5-9602-93a72759d083
mutex_timeout
5000
prevent_system_sleep
false
primary_connection_host
mrniceguyinc.bounceme.net
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

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

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\WPA Subsystem = "C:\\Program Files (x86)\\WPA Subsystem\\wpass.exe"	1a9206d71c5406abd2c44bb2ce0acdab.exe

Checks whether UAC is enabled 1 TTPs 1 IoCs

evasion trojan

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA	1a9206d71c5406abd2c44bb2ce0acdab.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1336 set thread context of 1188	1336	1a9206d71c5406abd2c44bb2ce0acdab.exe	28

Drops file in Program Files directory 2 IoCs

description	ioc	Process
File created	C:\Program Files (x86)\WPA Subsystem\wpass.exe	1a9206d71c5406abd2c44bb2ce0acdab.exe
File opened for modification	C:\Program Files (x86)\WPA Subsystem\wpass.exe	1a9206d71c5406abd2c44bb2ce0acdab.exe

Creates scheduled task(s) 1 TTPs 2 IoCs

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

persistence

Scheduled Task

T1053

pid	Process
948	schtasks.exe
896	schtasks.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
1188	1a9206d71c5406abd2c44bb2ce0acdab.exe
1188	1a9206d71c5406abd2c44bb2ce0acdab.exe
1188	1a9206d71c5406abd2c44bb2ce0acdab.exe
1188	1a9206d71c5406abd2c44bb2ce0acdab.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
1188	1a9206d71c5406abd2c44bb2ce0acdab.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	1188	1a9206d71c5406abd2c44bb2ce0acdab.exe

Suspicious use of WriteProcessMemory 17 IoCs

description	pid	Process	procid_target
PID 1336 wrote to memory of 1188	1336	1a9206d71c5406abd2c44bb2ce0acdab.exe	28
PID 1336 wrote to memory of 1188	1336	1a9206d71c5406abd2c44bb2ce0acdab.exe	28
PID 1336 wrote to memory of 1188	1336	1a9206d71c5406abd2c44bb2ce0acdab.exe	28
PID 1336 wrote to memory of 1188	1336	1a9206d71c5406abd2c44bb2ce0acdab.exe	28
PID 1336 wrote to memory of 1188	1336	1a9206d71c5406abd2c44bb2ce0acdab.exe	28
PID 1336 wrote to memory of 1188	1336	1a9206d71c5406abd2c44bb2ce0acdab.exe	28
PID 1336 wrote to memory of 1188	1336	1a9206d71c5406abd2c44bb2ce0acdab.exe	28
PID 1336 wrote to memory of 1188	1336	1a9206d71c5406abd2c44bb2ce0acdab.exe	28
PID 1336 wrote to memory of 1188	1336	1a9206d71c5406abd2c44bb2ce0acdab.exe	28
PID 1188 wrote to memory of 896	1188	1a9206d71c5406abd2c44bb2ce0acdab.exe	29
PID 1188 wrote to memory of 896	1188	1a9206d71c5406abd2c44bb2ce0acdab.exe	29
PID 1188 wrote to memory of 896	1188	1a9206d71c5406abd2c44bb2ce0acdab.exe	29
PID 1188 wrote to memory of 896	1188	1a9206d71c5406abd2c44bb2ce0acdab.exe	29
PID 1188 wrote to memory of 948	1188	1a9206d71c5406abd2c44bb2ce0acdab.exe	31
PID 1188 wrote to memory of 948	1188	1a9206d71c5406abd2c44bb2ce0acdab.exe	31
PID 1188 wrote to memory of 948	1188	1a9206d71c5406abd2c44bb2ce0acdab.exe	31
PID 1188 wrote to memory of 948	1188	1a9206d71c5406abd2c44bb2ce0acdab.exe	31

C:\Users\Admin\AppData\Local\Temp\1a9206d71c5406abd2c44bb2ce0acdab.exe
"C:\Users\Admin\AppData\Local\Temp\1a9206d71c5406abd2c44bb2ce0acdab.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:1336
- C:\Users\Admin\AppData\Local\Temp\1a9206d71c5406abd2c44bb2ce0acdab.exe
  "C:\Users\Admin\AppData\Local\Temp\1a9206d71c5406abd2c44bb2ce0acdab.exe"
  2⤵
  - Adds Run key to start application
  - Checks whether UAC is enabled
  - Drops file in Program Files directory
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious behavior: GetForegroundWindowSpam
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:1188
- - C:\Windows\SysWOW64\schtasks.exe
    "schtasks.exe" /create /f /tn "WPA Subsystem" /xml "C:\Users\Admin\AppData\Local\Temp\tmpAFE0.tmp"
    3⤵
    - Creates scheduled task(s)
    PID:896
- - C:\Windows\SysWOW64\schtasks.exe
    "schtasks.exe" /create /f /tn "WPA Subsystem Task" /xml "C:\Users\Admin\AppData\Local\Temp\tmpB28F.tmp"
    3⤵
    - Creates scheduled task(s)
    PID:948

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

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

tmpAFE0.tmp

Path C:\Users\Admin\AppData\Local\Temp\tmpAFE0.tmp
Size 1KB
SHA256 b71237a7bd2662655a0d0bae19ad9bf0614f6a41cabf6535225c87eb3f319739
MD5 e910ef8a645c094d1d743840d57a545d
SHA1 2297e325dfbdfc3634517a41ba90d0e98c8bfe4b
SHA512 698f161d72ff0234c3b20c6f8ca08d7e5c461ad9d5ab7a5b77f18b58263307d191cfe2555c05a568a4ea51ff01c35f7c6eca5269139c605fe6833b3d40c02c32
MD5 SHA1 SHA512

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tmpB28F.tmp

Path C:\Users\Admin\AppData\Local\Temp\tmpB28F.tmp
Size 1KB
SHA256 84b6ce4ba26fa6fb57fa70b9ad191f7c42c71e259897955b5d514385bcd91b58
MD5 4365cd1ae65923a319ef2683a45891fe
SHA1 85dde233112660e31c53884aedfbad52e4547e09
SHA512 d1bd24f504c5c2ecaa3ae98268ccc2e400ea3e16980c6caf394eadf7738225e4d5578fbe62bbe2de3fe0cb56a0d76bb3fc84cef3b9cd2f3d8be6d0becefdc035
MD5 SHA1 SHA512

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memory/1188-63-0x0000000000400000-0x0000000000438000-memory.dmp

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memory/1188-78-0x0000000000720000-0x000000000073E000-memory.dmp

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memory/1188-60-0x0000000000400000-0x0000000000438000-memory.dmp

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memory/1188-61-0x0000000000400000-0x0000000000438000-memory.dmp

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memory/1188-91-0x00000000021F0000-0x0000000002204000-memory.dmp

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memory/1188-64-0x0000000000400000-0x0000000000438000-memory.dmp

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memory/1188-66-0x0000000000400000-0x0000000000438000-memory.dmp

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memory/1188-69-0x0000000000400000-0x0000000000438000-memory.dmp

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memory/1188-71-0x0000000000400000-0x0000000000438000-memory.dmp

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memory/1188-90-0x0000000004370000-0x000000000439E000-memory.dmp

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memory/1188-89-0x00000000021D0000-0x00000000021DE000-memory.dmp

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memory/1188-88-0x00000000021C0000-0x00000000021D4000-memory.dmp

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memory/1188-87-0x00000000021B0000-0x00000000021C0000-memory.dmp

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memory/1188-77-0x0000000000450000-0x000000000045A000-memory.dmp

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memory/1188-86-0x0000000002160000-0x0000000002174000-memory.dmp

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memory/1188-79-0x00000000004E0000-0x00000000004EA000-memory.dmp

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memory/1188-80-0x0000000000750000-0x0000000000762000-memory.dmp

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memory/1188-81-0x0000000000760000-0x000000000077A000-memory.dmp

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memory/1188-82-0x0000000000AC0000-0x0000000000ACE000-memory.dmp

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memory/1188-83-0x0000000000AD0000-0x0000000000AE2000-memory.dmp

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memory/1188-84-0x0000000002100000-0x000000000210E000-memory.dmp

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memory/1188-85-0x0000000002110000-0x000000000211C000-memory.dmp

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memory/1336-59-0x0000000001FD0000-0x000000000200A000-memory.dmp

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memory/1336-55-0x00000000753B1000-0x00000000753B3000-memory.dmp

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memory/1336-56-0x0000000000530000-0x0000000000542000-memory.dmp

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memory/1336-57-0x0000000004BC0000-0x0000000004C56000-memory.dmp

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memory/1336-58-0x0000000000A70000-0x0000000000A76000-memory.dmp

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memory/1336-54-0x0000000000AE0000-0x0000000000BC2000-memory.dmp

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