nanocore | 0af048ced820966772ab5aed9d870fe1e8c2781a3cea94850628d4ea557c0248

General

Target

SK202-8 #YN12-60387.exe
Size

737KB
MD5

7ef62831b23949060085a8d2946523cd
SHA1

5e34a833f23867351a509858fff5e74e9f120aa9
SHA256

301cd4c375459544240e253b5f1fea9e0688d7d1770c69bb06dd9408960543e9
SHA512

72b896e77208151be212134b623feb86b748c03a6b7c1d5c5bc457837f9c333677c598fff0361d819ac3483be167b06104b61599f3a1c0e6869bcde793ac81a0

Score

10^/10

nanocore evasion keylogger spyware stealer trojan

Malware Config

Extracted

Family

nanocore

Version

1.2.2.0

C2

mec.sytes.net:3259

Mutex

9358a53f-433c-42f5-bd3f-14ae4da528cf

Attributes

activate_away_mode
true
backup_connection_host
mec.sytes.net
backup_dns_server
8.8.4.4
buffer_size
65535
build_time
2021-04-04T14:41:53.527071936Z
bypass_user_account_control
true
bypass_user_account_control_data
clear_access_control
true
clear_zone_identifier
true
connect_delay
4000
connection_port
3259
default_group
Mine
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
9358a53f-433c-42f5-bd3f-14ae4da528cf
mutex_timeout
5000
prevent_system_sleep
true
primary_connection_host
mec.sytes.net
primary_dns_server
8.8.8.8
request_elevation
true
restart_delay
5000
run_delay
0
run_on_startup
true
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
Checks whether UAC is enabled 1 TTPs 1 IoCs
evasion trojan

System Information Discovery
T1082

Processes:

SK202-8 #YN12-60387.exe

description ioc process

Key value queried \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA SK202-8 #YN12-60387.exe
Suspicious use of SetThreadContext 1 IoCs

Processes:

SK202-8 #YN12-60387.exe

description pid process target process

PID 1512 set thread context of 1668 1512 SK202-8 #YN12-60387.exe SK202-8 #YN12-60387.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 1 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
persistence

Scheduled Task
T1053

Processes:

schtasks.exe

pid process

1400 schtasks.exe

description	ioc	process
Key value queried	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA	SK202-8 #YN12-60387.exe

description	pid	process	target process
PID 1512 set thread context of 1668	1512	SK202-8 #YN12-60387.exe	SK202-8 #YN12-60387.exe

pid	process
1400	schtasks.exe

Suspicious behavior: EnumeratesProcesses 7 IoCs

Processes:

SK202-8 #YN12-60387.exeSK202-8 #YN12-60387.exe

pid	process
1512	SK202-8 #YN12-60387.exe
1512	SK202-8 #YN12-60387.exe
1512	SK202-8 #YN12-60387.exe
1512	SK202-8 #YN12-60387.exe
1512	SK202-8 #YN12-60387.exe
1668	SK202-8 #YN12-60387.exe
1668	SK202-8 #YN12-60387.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

SK202-8 #YN12-60387.exe

pid process

1668 SK202-8 #YN12-60387.exe
Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

SK202-8 #YN12-60387.exeSK202-8 #YN12-60387.exe

description pid process

Token: SeDebugPrivilege 1512 SK202-8 #YN12-60387.exe
Token: SeDebugPrivilege 1668 SK202-8 #YN12-60387.exe

pid	process
1668	SK202-8 #YN12-60387.exe

description	pid	process
Token: SeDebugPrivilege	1512	SK202-8 #YN12-60387.exe
Token: SeDebugPrivilege	1668	SK202-8 #YN12-60387.exe

Suspicious use of WriteProcessMemory 21 IoCs

Processes:

SK202-8 #YN12-60387.exe

description	pid	process	target process
PID 1512 wrote to memory of 1400	1512	SK202-8 #YN12-60387.exe	schtasks.exe
PID 1512 wrote to memory of 1400	1512	SK202-8 #YN12-60387.exe	schtasks.exe
PID 1512 wrote to memory of 1400	1512	SK202-8 #YN12-60387.exe	schtasks.exe
PID 1512 wrote to memory of 1400	1512	SK202-8 #YN12-60387.exe	schtasks.exe
PID 1512 wrote to memory of 1836	1512	SK202-8 #YN12-60387.exe	SK202-8 #YN12-60387.exe
PID 1512 wrote to memory of 1836	1512	SK202-8 #YN12-60387.exe	SK202-8 #YN12-60387.exe
PID 1512 wrote to memory of 1836	1512	SK202-8 #YN12-60387.exe	SK202-8 #YN12-60387.exe
PID 1512 wrote to memory of 1836	1512	SK202-8 #YN12-60387.exe	SK202-8 #YN12-60387.exe
PID 1512 wrote to memory of 1068	1512	SK202-8 #YN12-60387.exe	SK202-8 #YN12-60387.exe
PID 1512 wrote to memory of 1068	1512	SK202-8 #YN12-60387.exe	SK202-8 #YN12-60387.exe
PID 1512 wrote to memory of 1068	1512	SK202-8 #YN12-60387.exe	SK202-8 #YN12-60387.exe
PID 1512 wrote to memory of 1068	1512	SK202-8 #YN12-60387.exe	SK202-8 #YN12-60387.exe
PID 1512 wrote to memory of 1668	1512	SK202-8 #YN12-60387.exe	SK202-8 #YN12-60387.exe
PID 1512 wrote to memory of 1668	1512	SK202-8 #YN12-60387.exe	SK202-8 #YN12-60387.exe
PID 1512 wrote to memory of 1668	1512	SK202-8 #YN12-60387.exe	SK202-8 #YN12-60387.exe
PID 1512 wrote to memory of 1668	1512	SK202-8 #YN12-60387.exe	SK202-8 #YN12-60387.exe
PID 1512 wrote to memory of 1668	1512	SK202-8 #YN12-60387.exe	SK202-8 #YN12-60387.exe
PID 1512 wrote to memory of 1668	1512	SK202-8 #YN12-60387.exe	SK202-8 #YN12-60387.exe
PID 1512 wrote to memory of 1668	1512	SK202-8 #YN12-60387.exe	SK202-8 #YN12-60387.exe
PID 1512 wrote to memory of 1668	1512	SK202-8 #YN12-60387.exe	SK202-8 #YN12-60387.exe
PID 1512 wrote to memory of 1668	1512	SK202-8 #YN12-60387.exe	SK202-8 #YN12-60387.exe

C:\Users\Admin\AppData\Local\Temp\SK202-8 #YN12-60387.exe
"C:\Users\Admin\AppData\Local\Temp\SK202-8 #YN12-60387.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1512

C:\Windows\SysWOW64\schtasks.exe
"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\nLQmvzsfrCEI" /XML "C:\Users\Admin\AppData\Local\Temp\tmp85C3.tmp"
2⤵
- Creates scheduled task(s)
PID:1400

C:\Users\Admin\AppData\Local\Temp\SK202-8 #YN12-60387.exe
"{path}"
2⤵
PID:1836

C:\Users\Admin\AppData\Local\Temp\SK202-8 #YN12-60387.exe
"{path}"
2⤵
PID:1068

C:\Users\Admin\AppData\Local\Temp\SK202-8 #YN12-60387.exe
"{path}"
2⤵
- Checks whether UAC is enabled
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of AdjustPrivilegeToken
PID:1668

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Scheduled Task

1

T1053

Persistence

Scheduled Task

1

T1053

Privilege Escalation

Scheduled Task

1

T1053

Defense Evasion

Credential Access

Discovery

System Information Discovery

2

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\tmp85C3.tmp
MD5
741e3f5e6053c27a3ee0b8a5b9d24db4

SHA1
cf5e826b7c566806ceb3782f505649c7689682b9

SHA256
60ff6f19320e07b1594ec000ecd377d8d5b3184200d83a91624fa0aa85d7d9ce

SHA512
ef220bd133d6dabacc6d0f73405a2d63a7fa1969cbd51718653fc0bb1851ca194d217b42a0d817ba4a6001fcae2da9ca16b4d39574fde8fc8c7dba5cf38e5d45

Download Submit
memory/1400-58-0x0000000000000000-mapping.dmp

Download
memory/1512-55-0x0000000075821000-0x0000000075823000-memory.dmp

Filesize
8KB

Download
memory/1512-56-0x0000000002020000-0x0000000002021000-memory.dmp

Filesize
4KB

Download
memory/1512-57-0x0000000002021000-0x0000000002022000-memory.dmp

Filesize
4KB

Download
memory/1668-60-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/1668-61-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/1668-62-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/1668-63-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/1668-65-0x000000000041E792-mapping.dmp

Download
memory/1668-64-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/1668-67-0x0000000000600000-0x0000000000601000-memory.dmp

Filesize
4KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads