nanocore | e9431fe2082e51e40fe79444314c55e511a90ef1d8abdf9304e653cf24d22d78

General

Target

Invoice and waybill.exe
Size

522KB
MD5

9cae0efc5e46764e812450c11f385dfd
SHA1

a3d56b062283d8acc79cc7310b4dcfca60a7b66f
SHA256

e9431fe2082e51e40fe79444314c55e511a90ef1d8abdf9304e653cf24d22d78
SHA512

eb4152cf8e038ec0b21dd4e200a78f6697eeadabef7c6b3449375c922b70fb470d80735d4507e16ada92947dfb5c4bedd140b388402f28371f3742c1dd7b039e

Score

10^/10

nanocore evasion keylogger persistence spyware stealer suricata 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
suricata: ET MALWARE Possible NanoCore C2 60B
suricata: ET MALWARE Possible NanoCore C2 60B
suricata

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

Invoice and waybill.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"	Invoice and waybill.exe

Checks whether UAC is enabled 1 TTPs 1 IoCs
evasion trojan

System Information Discovery
T1082

Processes:

Invoice and waybill.exe

description ioc process

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

Processes:

Invoice and waybill.exe

description pid process target process

PID 1520 set thread context of 896 1520 Invoice and waybill.exe Invoice and waybill.exe

description	ioc	process
Key value queried	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA	Invoice and waybill.exe

description	pid	process	target process
PID 1520 set thread context of 896	1520	Invoice and waybill.exe	Invoice and waybill.exe

Drops file in Program Files directory 2 IoCs

Processes:

Invoice and waybill.exe

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

Suspicious behavior: EnumeratesProcesses 4 IoCs

Processes:

Invoice and waybill.exe

pid process

896 Invoice and waybill.exe
896 Invoice and waybill.exe
896 Invoice and waybill.exe
896 Invoice and waybill.exe
Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

Invoice and waybill.exe

pid process

896 Invoice and waybill.exe
Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

Invoice and waybill.exe

description pid process

Token: SeDebugPrivilege 896 Invoice and waybill.exe

pid	process
896	Invoice and waybill.exe
896	Invoice and waybill.exe
896	Invoice and waybill.exe
896	Invoice and waybill.exe

pid	process
896	Invoice and waybill.exe

description	pid	process
Token: SeDebugPrivilege	896	Invoice and waybill.exe

Suspicious use of WriteProcessMemory 9 IoCs

Processes:

Invoice and waybill.exe

description	pid	process	target process
PID 1520 wrote to memory of 896	1520	Invoice and waybill.exe	Invoice and waybill.exe
PID 1520 wrote to memory of 896	1520	Invoice and waybill.exe	Invoice and waybill.exe
PID 1520 wrote to memory of 896	1520	Invoice and waybill.exe	Invoice and waybill.exe
PID 1520 wrote to memory of 896	1520	Invoice and waybill.exe	Invoice and waybill.exe
PID 1520 wrote to memory of 896	1520	Invoice and waybill.exe	Invoice and waybill.exe
PID 1520 wrote to memory of 896	1520	Invoice and waybill.exe	Invoice and waybill.exe
PID 1520 wrote to memory of 896	1520	Invoice and waybill.exe	Invoice and waybill.exe
PID 1520 wrote to memory of 896	1520	Invoice and waybill.exe	Invoice and waybill.exe
PID 1520 wrote to memory of 896	1520	Invoice and waybill.exe	Invoice and waybill.exe

C:\Users\Admin\AppData\Local\Temp\Invoice and waybill.exe
"C:\Users\Admin\AppData\Local\Temp\Invoice and waybill.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:1520
- C:\Users\Admin\AppData\Local\Temp\Invoice and waybill.exe
  "C:\Users\Admin\AppData\Local\Temp\Invoice and waybill.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:896

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

1

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

memory/896-56-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/896-57-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/896-58-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/896-59-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/896-61-0x000000000041E792-mapping.dmp

Download
memory/896-60-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/896-63-0x00000000009C0000-0x00000000009C1000-memory.dmp

Filesize
4KB

Download
memory/1520-53-0x0000000075BD1000-0x0000000075BD3000-memory.dmp

Filesize
8KB

Download
memory/1520-54-0x0000000000A40000-0x0000000000A41000-memory.dmp

Filesize
4KB

Download
memory/1520-55-0x0000000000A41000-0x0000000000A42000-memory.dmp

Filesize
4KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads