nanocore | ac37845d62430452a237f4314c828fdb5177a11c6048dda080e6e6c9b40b94db

General

Target

ac37845d62430452a237f4314c828fdb5177a11c6048dda080e6e6c9b40b94db.exe
Size

720KB
MD5

99336406162a0898ae2759fe67f44327
SHA1

7af26e3cb7dc1edf06bb83855f3baab798750a3a
SHA256

ac37845d62430452a237f4314c828fdb5177a11c6048dda080e6e6c9b40b94db
SHA512

af9d2899218f71922026b58494975d8276971a093a8198299d4d9b800ee178e86b3dec2203cea523ca92a94a8bad1364e6c486992ae721c5b5f159895edd55fd
SSDEEP

12288:8D4VHfQe6ZyWshg+qbZxTZZWunAWvLmzYJtlLZfoZq0OzKTQ7kjuIqlcvjfi6AUF:8D4VHfQe6ZyWshg+qbZxTZZWunAWvLeb

Score

10^/10

nanocore discovery 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

baa1bd16-ba50-4743-8b51-41c36ee5d9d4

Attributes

activate_away_mode
true
backup_connection_host
37.0.10.22
backup_dns_server
8.8.4.4
buffer_size
65535
build_time
2021-07-10T08:16:56.984441236Z
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
baa1bd16-ba50-4743-8b51-41c36ee5d9d4
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
Nanocore family
nanocore

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\ISS Host = "C:\\Program Files (x86)\\ISS Host\\isshost.exe"	ac37845d62430452a237f4314c828fdb5177a11c6048dda080e6e6c9b40b94db.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	ac37845d62430452a237f4314c828fdb5177a11c6048dda080e6e6c9b40b94db.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 3056 set thread context of 2836	3056	ac37845d62430452a237f4314c828fdb5177a11c6048dda080e6e6c9b40b94db.exe	31

Drops file in Program Files directory 2 IoCs

description	ioc	Process
File created	C:\Program Files (x86)\ISS Host\isshost.exe	ac37845d62430452a237f4314c828fdb5177a11c6048dda080e6e6c9b40b94db.exe
File opened for modification	C:\Program Files (x86)\ISS Host\isshost.exe	ac37845d62430452a237f4314c828fdb5177a11c6048dda080e6e6c9b40b94db.exe

System Location Discovery: System Language Discovery 1 TTPs 2 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	ac37845d62430452a237f4314c828fdb5177a11c6048dda080e6e6c9b40b94db.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	ac37845d62430452a237f4314c828fdb5177a11c6048dda080e6e6c9b40b94db.exe

Suspicious behavior: EnumeratesProcesses 3 IoCs

pid	Process
2836	ac37845d62430452a237f4314c828fdb5177a11c6048dda080e6e6c9b40b94db.exe
2836	ac37845d62430452a237f4314c828fdb5177a11c6048dda080e6e6c9b40b94db.exe
2836	ac37845d62430452a237f4314c828fdb5177a11c6048dda080e6e6c9b40b94db.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
2836	ac37845d62430452a237f4314c828fdb5177a11c6048dda080e6e6c9b40b94db.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2836	ac37845d62430452a237f4314c828fdb5177a11c6048dda080e6e6c9b40b94db.exe

Suspicious use of WriteProcessMemory 9 IoCs

description	pid	Process	procid_target
PID 3056 wrote to memory of 2836	3056	ac37845d62430452a237f4314c828fdb5177a11c6048dda080e6e6c9b40b94db.exe	31
PID 3056 wrote to memory of 2836	3056	ac37845d62430452a237f4314c828fdb5177a11c6048dda080e6e6c9b40b94db.exe	31
PID 3056 wrote to memory of 2836	3056	ac37845d62430452a237f4314c828fdb5177a11c6048dda080e6e6c9b40b94db.exe	31
PID 3056 wrote to memory of 2836	3056	ac37845d62430452a237f4314c828fdb5177a11c6048dda080e6e6c9b40b94db.exe	31
PID 3056 wrote to memory of 2836	3056	ac37845d62430452a237f4314c828fdb5177a11c6048dda080e6e6c9b40b94db.exe	31
PID 3056 wrote to memory of 2836	3056	ac37845d62430452a237f4314c828fdb5177a11c6048dda080e6e6c9b40b94db.exe	31
PID 3056 wrote to memory of 2836	3056	ac37845d62430452a237f4314c828fdb5177a11c6048dda080e6e6c9b40b94db.exe	31
PID 3056 wrote to memory of 2836	3056	ac37845d62430452a237f4314c828fdb5177a11c6048dda080e6e6c9b40b94db.exe	31
PID 3056 wrote to memory of 2836	3056	ac37845d62430452a237f4314c828fdb5177a11c6048dda080e6e6c9b40b94db.exe	31

C:\Users\Admin\AppData\Local\Temp\ac37845d62430452a237f4314c828fdb5177a11c6048dda080e6e6c9b40b94db.exe
"C:\Users\Admin\AppData\Local\Temp\ac37845d62430452a237f4314c828fdb5177a11c6048dda080e6e6c9b40b94db.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3056
- C:\Users\Admin\AppData\Local\Temp\ac37845d62430452a237f4314c828fdb5177a11c6048dda080e6e6c9b40b94db.exe
  "C:\Users\Admin\AppData\Local\Temp\ac37845d62430452a237f4314c828fdb5177a11c6048dda080e6e6c9b40b94db.exe"
  2⤵
  - Adds Run key to start application
  - Checks whether UAC is enabled
  - Drops file in Program Files directory
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious behavior: GetForegroundWindowSpam
  - Suspicious use of AdjustPrivilegeToken
  PID:2836

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

System Information Discovery

1

T1082

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/2836-5-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2836-18-0x0000000074860000-0x0000000074E0B000-memory.dmp

Filesize
5.7MB

Download
memory/2836-8-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2836-7-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2836-9-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2836-15-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2836-13-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2836-11-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2836-22-0x0000000074860000-0x0000000074E0B000-memory.dmp

Filesize
5.7MB

Download
memory/2836-16-0x0000000074860000-0x0000000074E0B000-memory.dmp

Filesize
5.7MB

Download
memory/2836-17-0x0000000074860000-0x0000000074E0B000-memory.dmp

Filesize
5.7MB

Download
memory/2836-6-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/3056-0-0x0000000074861000-0x0000000074862000-memory.dmp

Filesize
4KB

Download
memory/3056-1-0x0000000074860000-0x0000000074E0B000-memory.dmp

Filesize
5.7MB

Download
memory/3056-3-0x0000000074860000-0x0000000074E0B000-memory.dmp

Filesize
5.7MB

Download
memory/3056-2-0x0000000074860000-0x0000000074E0B000-memory.dmp

Filesize
5.7MB

Download
memory/3056-19-0x0000000074860000-0x0000000074E0B000-memory.dmp

Filesize
5.7MB

Download
memory/3056-4-0x0000000074860000-0x0000000074E0B000-memory.dmp

Filesize
5.7MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads