nanocore | bcfbfc42a78e7d28bf25e0b6d0a9bf305488d58f8eb07579c4948f2438171446

General

Target

My CV.exe
Size

417KB
MD5

dadfb843f67fb91c7c5a1ff269a937a7
SHA1

e7fc816570212c2e22053d6525a1962b3f0b8bb6
SHA256

bcfbfc42a78e7d28bf25e0b6d0a9bf305488d58f8eb07579c4948f2438171446
SHA512

cb85fff98e9fb09a70de832853b068e252520fe35072e41b8a1624a46dce4614551778dcff550f684aa7775e02e361e2e79028e6ac2ef04129052b723d8e63d8

Score

10^/10

nanocore evasion keylogger persistence spyware stealer trojan

Malware Config

Extracted

Family

nanocore

Version

1.2.2.0

C2

kamuchehddhgfgf.ddns.net:1187

37.0.10.22:1187

Mutex

9ff0e8a4-a323-4111-bc49-0daecb63120d

Attributes

activate_away_mode
true
backup_connection_host
37.0.10.22
backup_dns_server
8.8.4.4
buffer_size
65535
build_time
2021-07-17T00:05:39.048278936Z
bypass_user_account_control
true
bypass_user_account_control_data
clear_access_control
true
clear_zone_identifier
false
connect_delay
4000
connection_port
1187
default_group
Default
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
9ff0e8a4-a323-4111-bc49-0daecb63120d
mutex_timeout
5000
prevent_system_sleep
false
primary_connection_host
kamuchehddhgfgf.ddns.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

Processes:

My CV.exe

description	ioc	process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\UDP Subsystem = "C:\\Program Files (x86)\\UDP Subsystem\\udpss.exe"	My CV.exe

Checks whether UAC is enabled 1 TTPs 1 IoCs
evasion trojan

System Information Discovery
T1082

Processes:

My CV.exe

description ioc process

Key value queried \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA My CV.exe
Suspicious use of SetThreadContext 1 IoCs

Processes:

My CV.exe

description pid process target process

PID 1596 set thread context of 780 1596 My CV.exe My CV.exe

description	ioc	process
Key value queried	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA	My CV.exe

description	pid	process	target process
PID 1596 set thread context of 780	1596	My CV.exe	My CV.exe

Drops file in Program Files directory 2 IoCs

Processes:

My CV.exe

description	ioc	process
File created	C:\Program Files (x86)\UDP Subsystem\udpss.exe	My CV.exe
File opened for modification	C:\Program Files (x86)\UDP Subsystem\udpss.exe	My CV.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

Processes:

My CV.exe

pid process

780 My CV.exe
780 My CV.exe
780 My CV.exe
780 My CV.exe
Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

My CV.exe

pid process

780 My CV.exe
Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

My CV.exe

description pid process

Token: SeDebugPrivilege 780 My CV.exe

pid	process
780	My CV.exe
780	My CV.exe
780	My CV.exe
780	My CV.exe

pid	process
780	My CV.exe

description	pid	process
Token: SeDebugPrivilege	780	My CV.exe

Suspicious use of WriteProcessMemory 9 IoCs

Processes:

My CV.exe

description	pid	process	target process
PID 1596 wrote to memory of 780	1596	My CV.exe	My CV.exe
PID 1596 wrote to memory of 780	1596	My CV.exe	My CV.exe
PID 1596 wrote to memory of 780	1596	My CV.exe	My CV.exe
PID 1596 wrote to memory of 780	1596	My CV.exe	My CV.exe
PID 1596 wrote to memory of 780	1596	My CV.exe	My CV.exe
PID 1596 wrote to memory of 780	1596	My CV.exe	My CV.exe
PID 1596 wrote to memory of 780	1596	My CV.exe	My CV.exe
PID 1596 wrote to memory of 780	1596	My CV.exe	My CV.exe
PID 1596 wrote to memory of 780	1596	My CV.exe	My CV.exe

C:\Users\Admin\AppData\Local\Temp\My CV.exe
"C:\Users\Admin\AppData\Local\Temp\My CV.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:1596

C:\Users\Admin\AppData\Local\Temp\My CV.exe
"C:\Users\Admin\AppData\Local\Temp\My CV.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
PID:780

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

1

T1060

Privilege Escalation

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

System Information Discovery

1

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Replay Monitor

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Downloads

memory/780-69-0x00000000003E0000-0x00000000003F9000-memory.dmp

Filesize
100KB

Download
memory/780-80-0x0000000000F70000-0x0000000000F7A000-memory.dmp

Filesize
40KB

Download
memory/780-67-0x0000000004D10000-0x0000000004D11000-memory.dmp

Filesize
4KB

Download
memory/780-81-0x0000000004C60000-0x0000000004C89000-memory.dmp

Filesize
164KB

Download
memory/780-68-0x00000000002D0000-0x00000000002D5000-memory.dmp

Filesize
20KB

Download
memory/780-59-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/780-60-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/780-61-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/780-62-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/780-63-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/780-64-0x000000000041E792-mapping.dmp

Download
memory/780-65-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/780-82-0x00000000047B0000-0x00000000047BF000-memory.dmp

Filesize
60KB

Download
memory/780-79-0x0000000000F60000-0x0000000000F6F000-memory.dmp

Filesize
60KB

Download
memory/780-73-0x0000000000C40000-0x0000000000C46000-memory.dmp

Filesize
24KB

Download
memory/780-70-0x0000000000440000-0x0000000000443000-memory.dmp

Filesize
12KB

Download
memory/780-71-0x0000000000550000-0x000000000055D000-memory.dmp

Filesize
52KB

Download
memory/780-72-0x00000000005E0000-0x00000000005F5000-memory.dmp

Filesize
84KB

Download
memory/780-78-0x0000000000DE0000-0x0000000000DE2000-memory.dmp

Filesize
8KB

Download
memory/780-74-0x0000000000CA0000-0x0000000000CAC000-memory.dmp

Filesize
48KB

Download
memory/780-75-0x0000000000D70000-0x0000000000D77000-memory.dmp

Filesize
28KB

Download
memory/780-76-0x0000000000DC0000-0x0000000000DC6000-memory.dmp

Filesize
24KB

Download
memory/780-77-0x0000000000DD0000-0x0000000000DDD000-memory.dmp

Filesize
52KB

Download
memory/1596-53-0x0000000000F80000-0x0000000000F81000-memory.dmp

Filesize
4KB

Download
memory/1596-55-0x0000000075A71000-0x0000000075A73000-memory.dmp

Filesize
8KB

Download
memory/1596-58-0x0000000000A50000-0x0000000000AA4000-memory.dmp

Filesize
336KB

Download
memory/1596-57-0x0000000000360000-0x0000000000367000-memory.dmp

Filesize
28KB

Download
memory/1596-56-0x0000000004E80000-0x0000000004E81000-memory.dmp

Filesize
4KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

Replay Monitor

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Downloads