nanocore | b6119b75a4d112fef0d8aa1a5b8baa9f3a2a5a9385bd3c669b4d628fcb3318cc

General

Target
E7C92M5C3X5INV0ICERECEIPTC0PY.exe
Size 387KB
Sample220113-srdm5sbbfm
SHA256 b6119b75a4d112fef0d8aa1a5b8baa9f3a2a5a9385bd3c669b4d628fcb3318cc
MD5 b8f28aaee5f699ea5cf67e179d7dc459
SHA1 fe881b0a953766da485d24fbbdb0aed377d92446
SHA512 0992f2c31fa187c38c0dc05da1fcb04cd52a254b27c3f35ad30d0dbb68fc2e916896490adc24867fdb2047a9a46019bec8c5868452755fb17b0f2a423c90cbf4
MD5 SHA1 SHA512

Score

10^/10

nanocore evasion keylogger persistence spyware stealer suricata trojan

Malware Config

Extracted

Family

nanocore

Version

1.2.2.0

C2

boyhome5100.duckdns.org:5100

Mutex

1f8684ca-0835-4252-89d1-4a2b1be1a69a

Attributes

activate_away_mode
true
backup_connection_host
boyhome5100.duckdns.org
backup_dns_server
8.8.4.4
buffer_size
65535
build_time
2021-10-24T18:54:58.725465636Z
bypass_user_account_control
true
bypass_user_account_control_data
clear_access_control
true
clear_zone_identifier
false
connect_delay
4000
connection_port
5100
default_group
boy of john
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
1f8684ca-0835-4252-89d1-4a2b1be1a69a
mutex_timeout
5000
prevent_system_sleep
false
primary_connection_host
boyhome5100.duckdns.org
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
suricata: ET MALWARE Possible NanoCore C2 60B
suricata: ET MALWARE Possible NanoCore C2 60B
suricata

Loads dropped DLL 1 IoCs

pid	Process
1880	E7C92M5C3X5INV0ICERECEIPTC0PY.exe

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\USER\S-1-5-21-3846991908-3261386348-1409841751-1000\Software\Microsoft\Windows\CurrentVersion\Run\kyvrnrwl = "C:\\Users\\Admin\\AppData\\Roaming\\dihsw\\chmac.exe"	E7C92M5C3X5INV0ICERECEIPTC0PY.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	E7C92M5C3X5INV0ICERECEIPTC0PY.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1880 set thread context of 516	1880	E7C92M5C3X5INV0ICERECEIPTC0PY.exe	27

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

System Information Discovery
T1082

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
516	E7C92M5C3X5INV0ICERECEIPTC0PY.exe
516	E7C92M5C3X5INV0ICERECEIPTC0PY.exe
516	E7C92M5C3X5INV0ICERECEIPTC0PY.exe
516	E7C92M5C3X5INV0ICERECEIPTC0PY.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
516	E7C92M5C3X5INV0ICERECEIPTC0PY.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	516	E7C92M5C3X5INV0ICERECEIPTC0PY.exe

Suspicious use of WriteProcessMemory 11 IoCs

description	pid	Process	procid_target
PID 1880 wrote to memory of 516	1880	E7C92M5C3X5INV0ICERECEIPTC0PY.exe	27
PID 1880 wrote to memory of 516	1880	E7C92M5C3X5INV0ICERECEIPTC0PY.exe	27
PID 1880 wrote to memory of 516	1880	E7C92M5C3X5INV0ICERECEIPTC0PY.exe	27
PID 1880 wrote to memory of 516	1880	E7C92M5C3X5INV0ICERECEIPTC0PY.exe	27
PID 1880 wrote to memory of 516	1880	E7C92M5C3X5INV0ICERECEIPTC0PY.exe	27
PID 1880 wrote to memory of 516	1880	E7C92M5C3X5INV0ICERECEIPTC0PY.exe	27
PID 1880 wrote to memory of 516	1880	E7C92M5C3X5INV0ICERECEIPTC0PY.exe	27
PID 1880 wrote to memory of 516	1880	E7C92M5C3X5INV0ICERECEIPTC0PY.exe	27
PID 1880 wrote to memory of 516	1880	E7C92M5C3X5INV0ICERECEIPTC0PY.exe	27
PID 1880 wrote to memory of 516	1880	E7C92M5C3X5INV0ICERECEIPTC0PY.exe	27
PID 1880 wrote to memory of 516	1880	E7C92M5C3X5INV0ICERECEIPTC0PY.exe	27

C:\Users\Admin\AppData\Local\Temp\E7C92M5C3X5INV0ICERECEIPTC0PY.exe
"C:\Users\Admin\AppData\Local\Temp\E7C92M5C3X5INV0ICERECEIPTC0PY.exe"
1⤵
- Loads dropped DLL
- Adds Run key to start application
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:1880
- C:\Users\Admin\AppData\Local\Temp\E7C92M5C3X5INV0ICERECEIPTC0PY.exe
  "C:\Users\Admin\AppData\Local\Temp\E7C92M5C3X5INV0ICERECEIPTC0PY.exe"
  2⤵
  - Checks whether UAC is enabled
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious behavior: GetForegroundWindowSpam
  - Suspicious use of AdjustPrivilegeToken
  PID:516

Network

MITRE ATT&CK Enterprise 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

2

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

memory/516-56-0x0000000000400000-0x0000000000448000-memory.dmp

Download

memory/516-59-0x0000000000400000-0x0000000000448000-memory.dmp

Download

memory/516-60-0x00000000002B0000-0x00000000002B1000-memory.dmp

Download

memory/516-62-0x00000000002B2000-0x00000000002B4000-memory.dmp

Download

memory/516-63-0x00000000002B7000-0x00000000002B8000-memory.dmp

Download

memory/516-61-0x00000000002B1000-0x00000000002B2000-memory.dmp

Download

memory/516-64-0x00000000002B8000-0x00000000002B9000-memory.dmp

Download

memory/1880-54-0x0000000075AB1000-0x0000000075AB3000-memory.dmp

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads