nanocore | 35d212409544435a45ce577615da11f75cc4cf6dc56bce849651aede5c1ae437

General

Target

e0f6bbc12ebe2102cf3fcf74f9d690d9.exe
Size

697KB
MD5

e0f6bbc12ebe2102cf3fcf74f9d690d9
SHA1

203b28ec0fcb113bf1ac37ffba917b94cab9e85b
SHA256

35d212409544435a45ce577615da11f75cc4cf6dc56bce849651aede5c1ae437
SHA512

7e711a6a18d561244413b9ebcfba52ed353d8eea3ecd379a39038a172ed4a2b31e5ddead87d0a6d969a9edf7c3fe782852733a5a55862fd6ed2a164161fcadc6
SSDEEP

12288:ETy8p17iS/d348K13c//sqQonbTWPsUwmxEHr9b8GcH3uExo4Kiazs:EPpMS/d34S//LQonbTAsUwmWrV8GcHJe

Score

10^/10

nanocore keylogger persistence spyware stealer trojan

Malware Config

Extracted

Family

nanocore

Version

1.2.2.0

C2

79.134.225.100:1985

127.0.0.1:1985

Mutex

b10f8b74-4448-4597-840b-1e44a5084bfc

Attributes

activate_away_mode
true
backup_connection_host
127.0.0.1
backup_dns_server
8.8.4.4
buffer_size
65535
build_time
2021-04-30T10:29:24.181451236Z
bypass_user_account_control
true
bypass_user_account_control_data
clear_access_control
false
clear_zone_identifier
false
connect_delay
4000
connection_port
1985
default_group
OBO
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
b10f8b74-4448-4597-840b-1e44a5084bfc
mutex_timeout
5000
prevent_system_sleep
true
primary_connection_host
79.134.225.100
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

CustAttr .NET packer 1 IoCs

Detects CustAttr .NET packer in memory.

Processes:

resource	yara_rule
behavioral1/memory/2360-3-0x00000000007F0000-0x0000000000802000-memory.dmp	CustAttr

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

Processes:

RegSvcs.exe

description	ioc	process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\TCP Subsystem = "C:\\Program Files (x86)\\TCP Subsystem\\tcpss.exe"	RegSvcs.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

e0f6bbc12ebe2102cf3fcf74f9d690d9.exe

description pid process target process

PID 2360 set thread context of 2468 2360 e0f6bbc12ebe2102cf3fcf74f9d690d9.exe RegSvcs.exe

description	pid	process	target process
PID 2360 set thread context of 2468	2360	e0f6bbc12ebe2102cf3fcf74f9d690d9.exe	RegSvcs.exe

Drops file in Program Files directory 2 IoCs

Processes:

RegSvcs.exe

description	ioc	process
File created	C:\Program Files (x86)\TCP Subsystem\tcpss.exe	RegSvcs.exe
File opened for modification	C:\Program Files (x86)\TCP Subsystem\tcpss.exe	RegSvcs.exe

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

System Information Discovery
T1082
Suspicious behavior: EnumeratesProcesses 5 IoCs

Processes:

e0f6bbc12ebe2102cf3fcf74f9d690d9.exeRegSvcs.exepowershell.exe

pid process

2360 e0f6bbc12ebe2102cf3fcf74f9d690d9.exe
2468 RegSvcs.exe
2468 RegSvcs.exe
2468 RegSvcs.exe
2444 powershell.exe
Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

RegSvcs.exe

pid process

2468 RegSvcs.exe

pid	process
2360	e0f6bbc12ebe2102cf3fcf74f9d690d9.exe
2468	RegSvcs.exe
2468	RegSvcs.exe
2468	RegSvcs.exe
2444	powershell.exe

pid	process
2468	RegSvcs.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

Processes:

e0f6bbc12ebe2102cf3fcf74f9d690d9.exeRegSvcs.exepowershell.exe

description	pid	process
Token: SeDebugPrivilege	2360	e0f6bbc12ebe2102cf3fcf74f9d690d9.exe
Token: SeDebugPrivilege	2468	RegSvcs.exe
Token: SeDebugPrivilege	2444	powershell.exe

Suspicious use of WriteProcessMemory 16 IoCs

Processes:

e0f6bbc12ebe2102cf3fcf74f9d690d9.exe

description	pid	process	target process
PID 2360 wrote to memory of 2444	2360	e0f6bbc12ebe2102cf3fcf74f9d690d9.exe	powershell.exe
PID 2360 wrote to memory of 2444	2360	e0f6bbc12ebe2102cf3fcf74f9d690d9.exe	powershell.exe
PID 2360 wrote to memory of 2444	2360	e0f6bbc12ebe2102cf3fcf74f9d690d9.exe	powershell.exe
PID 2360 wrote to memory of 2444	2360	e0f6bbc12ebe2102cf3fcf74f9d690d9.exe	powershell.exe
PID 2360 wrote to memory of 2468	2360	e0f6bbc12ebe2102cf3fcf74f9d690d9.exe	RegSvcs.exe
PID 2360 wrote to memory of 2468	2360	e0f6bbc12ebe2102cf3fcf74f9d690d9.exe	RegSvcs.exe
PID 2360 wrote to memory of 2468	2360	e0f6bbc12ebe2102cf3fcf74f9d690d9.exe	RegSvcs.exe
PID 2360 wrote to memory of 2468	2360	e0f6bbc12ebe2102cf3fcf74f9d690d9.exe	RegSvcs.exe
PID 2360 wrote to memory of 2468	2360	e0f6bbc12ebe2102cf3fcf74f9d690d9.exe	RegSvcs.exe
PID 2360 wrote to memory of 2468	2360	e0f6bbc12ebe2102cf3fcf74f9d690d9.exe	RegSvcs.exe
PID 2360 wrote to memory of 2468	2360	e0f6bbc12ebe2102cf3fcf74f9d690d9.exe	RegSvcs.exe
PID 2360 wrote to memory of 2468	2360	e0f6bbc12ebe2102cf3fcf74f9d690d9.exe	RegSvcs.exe
PID 2360 wrote to memory of 2468	2360	e0f6bbc12ebe2102cf3fcf74f9d690d9.exe	RegSvcs.exe
PID 2360 wrote to memory of 2468	2360	e0f6bbc12ebe2102cf3fcf74f9d690d9.exe	RegSvcs.exe
PID 2360 wrote to memory of 2468	2360	e0f6bbc12ebe2102cf3fcf74f9d690d9.exe	RegSvcs.exe
PID 2360 wrote to memory of 2468	2360	e0f6bbc12ebe2102cf3fcf74f9d690d9.exe	RegSvcs.exe

C:\Users\Admin\AppData\Local\Temp\e0f6bbc12ebe2102cf3fcf74f9d690d9.exe
"C:\Users\Admin\AppData\Local\Temp\e0f6bbc12ebe2102cf3fcf74f9d690d9.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2360

C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Local\Temp\e0f6bbc12ebe2102cf3fcf74f9d690d9.exe"
2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:2444

C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
"C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe"
2⤵
- Adds Run key to start application
- Drops file in Program Files directory
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of AdjustPrivilegeToken
PID:2468

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

System Information Discovery

1

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

memory/2360-19-0x0000000074AA0000-0x000000007518E000-memory.dmp

Filesize
6.9MB

Download
memory/2360-1-0x0000000074AA0000-0x000000007518E000-memory.dmp

Filesize
6.9MB

Download
memory/2360-2-0x0000000004D70000-0x0000000004DB0000-memory.dmp

Filesize
256KB

Download
memory/2360-3-0x00000000007F0000-0x0000000000802000-memory.dmp

Filesize
72KB

Download
memory/2360-4-0x0000000074AA0000-0x000000007518E000-memory.dmp

Filesize
6.9MB

Download
memory/2360-5-0x0000000004D70000-0x0000000004DB0000-memory.dmp

Filesize
256KB

Download
memory/2360-6-0x00000000055E0000-0x0000000005662000-memory.dmp

Filesize
520KB

Download
memory/2360-7-0x0000000001EE0000-0x0000000001F1A000-memory.dmp

Filesize
232KB

Download
memory/2360-0-0x0000000000870000-0x0000000000924000-memory.dmp

Filesize
720KB

Download
memory/2444-29-0x000000006FA00000-0x000000006FFAB000-memory.dmp

Filesize
5.7MB

Download
memory/2444-30-0x0000000002A20000-0x0000000002A60000-memory.dmp

Filesize
256KB

Download
memory/2444-33-0x000000006FA00000-0x000000006FFAB000-memory.dmp

Filesize
5.7MB

Download
memory/2444-32-0x0000000002A20000-0x0000000002A60000-memory.dmp

Filesize
256KB

Download
memory/2444-31-0x000000006FA00000-0x000000006FFAB000-memory.dmp

Filesize
5.7MB

Download
memory/2468-21-0x0000000004720000-0x0000000004760000-memory.dmp

Filesize
256KB

Download
memory/2468-8-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2468-9-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2468-20-0x0000000074AA0000-0x000000007518E000-memory.dmp

Filesize
6.9MB

Download
memory/2468-10-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2468-26-0x0000000000440000-0x000000000044A000-memory.dmp

Filesize
40KB

Download
memory/2468-27-0x00000000004A0000-0x00000000004BE000-memory.dmp

Filesize
120KB

Download
memory/2468-18-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2468-28-0x0000000000450000-0x000000000045A000-memory.dmp

Filesize
40KB

Download
memory/2468-16-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2468-14-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2468-12-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2468-11-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2468-34-0x0000000074AA0000-0x000000007518E000-memory.dmp

Filesize
6.9MB

Download
memory/2468-35-0x0000000004720000-0x0000000004760000-memory.dmp

Filesize
256KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads