nanocore | d0db3a18c0593a628f5c7e2a92b48369c10823af44d4f1e97f0bfbfd84043c59

General

Target
Jessica Ohnesorge'CV.exe
Size 659KB
Sample211112-ak2saacdb9
SHA256 d0db3a18c0593a628f5c7e2a92b48369c10823af44d4f1e97f0bfbfd84043c59
MD5 f3a97d11dd6de1f82a28ac41992a7f40
SHA1 e35d74721cafdb936e5135d113a6592bb2770c1d
SHA512 7f25b8645e0e49eaabed65a7df389e6fccfd7227dbfc1f833548a191fb74bdfd2a9e172cd57690c4cd988ad14985176cfa0e7cc873ab9dfb240204e406843879
MD5 SHA1 SHA512

Score

10^/10

nanocore evasion keylogger persistence spyware stealer trojan

Malware Config

Extracted

Family

nanocore

Version

1.2.2.0

C2

dera31.ddns.net:1187
195.133.18.211:1187

Mutex

f4157c11-54e5-4893-8a60-6856b8471d8c

Attributes

activate_away_mode
true
backup_connection_host
195.133.18.211
backup_dns_server
8.8.4.4
buffer_size
65535
build_time
2021-08-13T08:45:25.192912336Z
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
f4157c11-54e5-4893-8a60-6856b8471d8c
mutex_timeout
5000
prevent_system_sleep
false
primary_connection_host
dera31.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

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\SMTP Manager = "C:\\Program Files (x86)\\SMTP Manager\\smtpmgr.exe"	Jessica Ohnesorge'CV.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	Jessica Ohnesorge'CV.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 3828 set thread context of 4520	3828	Jessica Ohnesorge'CV.exe	70

Drops file in Program Files directory 2 IoCs

description	ioc	Process
File created	C:\Program Files (x86)\SMTP Manager\smtpmgr.exe	Jessica Ohnesorge'CV.exe
File opened for modification	C:\Program Files (x86)\SMTP Manager\smtpmgr.exe	Jessica Ohnesorge'CV.exe

Suspicious behavior: EnumeratesProcesses 8 IoCs

pid	Process
3828	Jessica Ohnesorge'CV.exe
3828	Jessica Ohnesorge'CV.exe
4520	Jessica Ohnesorge'CV.exe
4520	Jessica Ohnesorge'CV.exe
4520	Jessica Ohnesorge'CV.exe
4520	Jessica Ohnesorge'CV.exe
4520	Jessica Ohnesorge'CV.exe
4520	Jessica Ohnesorge'CV.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
4520	Jessica Ohnesorge'CV.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	3828	Jessica Ohnesorge'CV.exe
Token: SeDebugPrivilege	4520	Jessica Ohnesorge'CV.exe

Suspicious use of WriteProcessMemory 11 IoCs

description	pid	Process	procid_target
PID 3828 wrote to memory of 4536	3828	Jessica Ohnesorge'CV.exe	69
PID 3828 wrote to memory of 4536	3828	Jessica Ohnesorge'CV.exe	69
PID 3828 wrote to memory of 4536	3828	Jessica Ohnesorge'CV.exe	69
PID 3828 wrote to memory of 4520	3828	Jessica Ohnesorge'CV.exe	70
PID 3828 wrote to memory of 4520	3828	Jessica Ohnesorge'CV.exe	70
PID 3828 wrote to memory of 4520	3828	Jessica Ohnesorge'CV.exe	70
PID 3828 wrote to memory of 4520	3828	Jessica Ohnesorge'CV.exe	70
PID 3828 wrote to memory of 4520	3828	Jessica Ohnesorge'CV.exe	70
PID 3828 wrote to memory of 4520	3828	Jessica Ohnesorge'CV.exe	70
PID 3828 wrote to memory of 4520	3828	Jessica Ohnesorge'CV.exe	70
PID 3828 wrote to memory of 4520	3828	Jessica Ohnesorge'CV.exe	70

C:\Users\Admin\AppData\Local\Temp\Jessica Ohnesorge'CV.exe
"C:\Users\Admin\AppData\Local\Temp\Jessica Ohnesorge'CV.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3828
- C:\Users\Admin\AppData\Local\Temp\Jessica Ohnesorge'CV.exe
  "C:\Users\Admin\AppData\Local\Temp\Jessica Ohnesorge'CV.exe"
  2⤵
  PID:4536
- C:\Users\Admin\AppData\Local\Temp\Jessica Ohnesorge'CV.exe
  "C:\Users\Admin\AppData\Local\Temp\Jessica Ohnesorge'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:4520

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/3828-115-0x0000000001490000-0x00000000015DA000-memory.dmp

Download

memory/4520-116-0x0000000000400000-0x0000000000438000-memory.dmp

Download

memory/4520-119-0x0000000001150000-0x0000000001151000-memory.dmp

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads