nanocore | c556eda3dbf9f7739263f46057b3073ba7c76f3028dacef54fb5a8715950551e

General

Target

c556eda3dbf9f7739263f46057b3073ba7c76f3028dacef54fb5a8715950551e.exe
Size

695KB
MD5

997fc0896e6e5c9fa7d33320359c9ac6
SHA1

1f4a824be81df514942f7251fc649e14e694e16e
SHA256

c556eda3dbf9f7739263f46057b3073ba7c76f3028dacef54fb5a8715950551e
SHA512

e77677e3b8e24c253655e1b08cec5c611afada7c78d2937923ae3ac66ffd274fa1fa929bc4a597021d4f932a125bad30cab737082c915628fd61731279f888ba
SSDEEP

12288:hhoDWx2PQfZSnDx17GvT63GjmBiruwuWNP5qBmNsgLkjV1:heawM491Kv2GiHnuVkjD

Score

10^/10

nanocore keylogger persistence spyware stealer trojan

Malware Config

Extracted

Family

nanocore

Version

1.2.2.0

C2

newsddawork.3utilities.com:1620

maxlogs.webhop.me:1620

Mutex

1fa46b72-10f9-4da3-bc15-84dde165706d

Attributes

activate_away_mode
true
backup_connection_host
maxlogs.webhop.me
backup_dns_server
8.8.4.4
buffer_size
65535
build_time
2024-02-17T03:41:10.727034736Z
bypass_user_account_control
true
bypass_user_account_control_data
clear_access_control
true
clear_zone_identifier
false
connect_delay
4000
connection_port
1620
default_group
NewBin
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
1fa46b72-10f9-4da3-bc15-84dde165706d
mutex_timeout
5000
prevent_system_sleep
false
primary_connection_host
newsddawork.3utilities.com
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

T1547.001

Modify Registry

T1112

Processes:

MSBuild.exe

description	ioc	process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\NAT Subsystem = "C:\\Program Files (x86)\\NAT Subsystem\\natss.exe"	MSBuild.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

c556eda3dbf9f7739263f46057b3073ba7c76f3028dacef54fb5a8715950551e.exe

description	pid	process	target process
PID 960 set thread context of 2152	960	c556eda3dbf9f7739263f46057b3073ba7c76f3028dacef54fb5a8715950551e.exe	MSBuild.exe

Drops file in Program Files directory 2 IoCs

Processes:

MSBuild.exe

description	ioc	process
File created	C:\Program Files (x86)\NAT Subsystem\natss.exe	MSBuild.exe
File opened for modification	C:\Program Files (x86)\NAT Subsystem\natss.exe	MSBuild.exe

Suspicious behavior: EnumeratesProcesses 3 IoCs

Processes:

MSBuild.exe

pid process

2152 MSBuild.exe
2152 MSBuild.exe
2152 MSBuild.exe
Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

MSBuild.exe

pid process

2152 MSBuild.exe
Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

MSBuild.exe

description pid process

Token: SeDebugPrivilege 2152 MSBuild.exe

pid	process
2152	MSBuild.exe
2152	MSBuild.exe
2152	MSBuild.exe

pid	process
2152	MSBuild.exe

description	pid	process
Token: SeDebugPrivilege	2152	MSBuild.exe

Suspicious use of WriteProcessMemory 8 IoCs

Processes:

c556eda3dbf9f7739263f46057b3073ba7c76f3028dacef54fb5a8715950551e.exe

description	pid	process	target process
PID 960 wrote to memory of 2152	960	c556eda3dbf9f7739263f46057b3073ba7c76f3028dacef54fb5a8715950551e.exe	MSBuild.exe
PID 960 wrote to memory of 2152	960	c556eda3dbf9f7739263f46057b3073ba7c76f3028dacef54fb5a8715950551e.exe	MSBuild.exe
PID 960 wrote to memory of 2152	960	c556eda3dbf9f7739263f46057b3073ba7c76f3028dacef54fb5a8715950551e.exe	MSBuild.exe
PID 960 wrote to memory of 2152	960	c556eda3dbf9f7739263f46057b3073ba7c76f3028dacef54fb5a8715950551e.exe	MSBuild.exe
PID 960 wrote to memory of 2152	960	c556eda3dbf9f7739263f46057b3073ba7c76f3028dacef54fb5a8715950551e.exe	MSBuild.exe
PID 960 wrote to memory of 2152	960	c556eda3dbf9f7739263f46057b3073ba7c76f3028dacef54fb5a8715950551e.exe	MSBuild.exe
PID 960 wrote to memory of 2152	960	c556eda3dbf9f7739263f46057b3073ba7c76f3028dacef54fb5a8715950551e.exe	MSBuild.exe
PID 960 wrote to memory of 2152	960	c556eda3dbf9f7739263f46057b3073ba7c76f3028dacef54fb5a8715950551e.exe	MSBuild.exe

C:\Users\Admin\AppData\Local\Temp\c556eda3dbf9f7739263f46057b3073ba7c76f3028dacef54fb5a8715950551e.exe
"C:\Users\Admin\AppData\Local\Temp\c556eda3dbf9f7739263f46057b3073ba7c76f3028dacef54fb5a8715950551e.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:960

C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe
"C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.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:2152

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

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

memory/960-10-0x0000000006490000-0x000000000649E000-memory.dmp

Filesize
56KB

Download
memory/960-2-0x0000000005380000-0x0000000005924000-memory.dmp

Filesize
5.6MB

Download
memory/960-11-0x00000000064B0000-0x000000000652A000-memory.dmp

Filesize
488KB

Download
memory/960-3-0x0000000004E80000-0x0000000004F12000-memory.dmp

Filesize
584KB

Download
memory/960-4-0x0000000004F50000-0x0000000004F5A000-memory.dmp

Filesize
40KB

Download
memory/960-5-0x00000000743E0000-0x0000000074B90000-memory.dmp

Filesize
7.7MB

Download
memory/960-6-0x0000000005930000-0x0000000005C84000-memory.dmp

Filesize
3.3MB

Download
memory/960-7-0x00000000052A0000-0x00000000052B2000-memory.dmp

Filesize
72KB

Download
memory/960-12-0x0000000009100000-0x000000000919C000-memory.dmp

Filesize
624KB

Download
memory/960-9-0x0000000006C40000-0x0000000006C5A000-memory.dmp

Filesize
104KB

Download
memory/960-0-0x00000000743EE000-0x00000000743EF000-memory.dmp

Filesize
4KB

Download
memory/960-1-0x00000000003E0000-0x0000000000494000-memory.dmp

Filesize
720KB

Download
memory/960-8-0x0000000006AC0000-0x0000000006AE2000-memory.dmp

Filesize
136KB

Download
memory/960-15-0x00000000743E0000-0x0000000074B90000-memory.dmp

Filesize
7.7MB

Download
memory/2152-13-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2152-16-0x00000000743E0000-0x0000000074B90000-memory.dmp

Filesize
7.7MB

Download
memory/2152-17-0x00000000743E0000-0x0000000074B90000-memory.dmp

Filesize
7.7MB

Download
memory/2152-20-0x0000000005B60000-0x0000000005B6A000-memory.dmp

Filesize
40KB

Download
memory/2152-21-0x0000000005B70000-0x0000000005B8E000-memory.dmp

Filesize
120KB

Download
memory/2152-22-0x0000000006550000-0x000000000655A000-memory.dmp

Filesize
40KB

Download
memory/2152-23-0x00000000743E0000-0x0000000074B90000-memory.dmp

Filesize
7.7MB

Download
memory/2152-24-0x00000000743E0000-0x0000000074B90000-memory.dmp

Filesize
7.7MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads